:root {
    --color-bg-base: #05060A;
    --color-bg-elev-1: #0B0E14;
    --color-bg-elev-2: #10141C;
    --color-surface-glass: rgba(11, 14, 20, 0.72);
    --color-border-subtle: rgba(255, 255, 255, calc(0.08 * var(--ctl-border)));
    --color-border-strong: rgba(255, 255, 255, calc(0.16 * var(--ctl-border)));
    --color-border-accent: rgba(244, 201, 135, calc(0.28 * var(--ctl-border)));
    --color-text-primary: #F5F1E8;
    --color-text-secondary: #B8B2A6;
    --color-text-tertiary: #8A847A;
    --color-accent: #F4C987;
    --color-accent-strong: #FFE0A6;
    --color-accent-dim: rgba(244, 201, 135, 0.12);
    --color-status-ok: #5ED29C;
    --color-status-active: #F4C987;
    --color-status-boundary: #B08CFF;
    --color-status-failclosed: #FF5C5C;
    --color-status-info: #7AA7FF;
    --ctl-brightness: 1;
    --ctl-contrast: 1;
    --ctl-saturation: 1;
    --ctl-warmth: 0;
    --ctl-cyber: 0.6;
    --ctl-glass: 0.72;
    --ctl-blur: 18px;
    --ctl-glass-bright: 1;
    --ctl-border: 1;
    --ctl-glow: 1;
    --ctl-shadow: 1;
    --ctl-motion: 1;
    --ctl-pattern: 1;
    --ctl-pattern-opacity: 0.28;
    --ctl-pattern-scale: 1;
    --ctl-atmosphere: 1;
    --cyber-url: image-set(url('../assets/images/cyber-yellow-1280.e6f88b8f9be4.webp') 1x, url('../assets/images/cyber-yellow-1920.d7835dbb1e53.webp') 2x);
    --color-glow-accent: 0 0 calc(24px * var(--ctl-glow) * var(--ctl-atmosphere)) rgba(244, 201, 135, min(0.7, calc(0.35 * var(--ctl-glow) * var(--ctl-atmosphere))));
    --color-glow-boundary: 0 0 calc(20px * var(--ctl-glow) * var(--ctl-atmosphere)) rgba(176, 140, 255, min(0.7, calc(0.35 * var(--ctl-glow) * var(--ctl-atmosphere))));
    --font-display: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    --fs-display: clamp(34px, 5vw, 60px);
    --fs-h2: clamp(24px, 3.5vw, 36px);
    --fs-h3: clamp(18px, 2vw, 24px);
    --fs-body: 16px;
    --fs-small: 13px;
    --fs-label: 11px;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --radius-pill: 999px;
    --shadow-panel: 0 calc(24px * var(--ctl-shadow)) calc(80px * var(--ctl-shadow)) rgba(0, 0, 0, min(0.85, calc(0.55 * var(--ctl-shadow))));
    --max-width: 1240px;
    --scrollbar-size: 12px;
    --scrollbar-track: rgba(5, 6, 10, 0.35);
    --scrollbar-thumb: rgba(244, 201, 135, 0.26);
    --scrollbar-thumb-hover: rgba(244, 201, 135, 0.52);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 96px;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-body);
    font-size: var(--fs-body);
    line-height: 1.65;
    color: var(--color-text-primary);
    background: var(--color-bg-base);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    background:
        radial-gradient(1100px 560px at 82% -12%, rgba(244, 201, 135, 0.11), transparent 62%),
        radial-gradient(900px 520px at -5% 8%, rgba(122, 167, 255, 0.06), transparent 60%),
        linear-gradient(180deg, rgba(5, 6, 10, 0.04), rgba(5, 6, 10, 0.18));
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.4;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 72%);
    mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 72%);
    transition: opacity calc(0.4s * var(--ctl-motion));
}

.topbar-inner,
.hero-copy,
.section-head,
.section-note,
.section-cta,
.arch-layer,
.timeline-order,
.ghost-copy,
.ghost-emblem-wrap,
.about-copy,
.drawer,
.cyber-pattern {
    filter: brightness(var(--ctl-brightness)) contrast(var(--ctl-contrast)) saturate(var(--ctl-saturation)) sepia(var(--ctl-warmth));
}

.cyber-backdrop {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -4;
    pointer-events: none;
    background-color: var(--color-bg-base);
    background-image: var(--cyber-url);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    opacity: min(1, calc(var(--ctl-cyber) * var(--ctl-atmosphere)));
    filter: brightness(calc(var(--ctl-brightness) * 1.06)) contrast(var(--ctl-contrast)) saturate(calc(var(--ctl-saturation) * 1.16)) sepia(var(--ctl-warmth));
    transition: opacity calc(0.45s * var(--ctl-motion));
}

.cyber-pattern {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(233, 222, 197, calc(0.42 * var(--ctl-pattern-opacity))) 1.1px, transparent 1.2px);
    background-position: center center;
    background-size: calc(26px * var(--ctl-pattern-scale)) calc(26px * var(--ctl-pattern-scale));
    opacity: calc(var(--ctl-pattern) * var(--ctl-atmosphere));
    transition: opacity calc(0.45s * var(--ctl-motion)), background-size calc(0.45s * var(--ctl-motion));
}

html[data-bg="grid"] .cyber-backdrop,
html[data-bg="plain"] .cyber-backdrop {
    opacity: 0;
}

html[data-bg="plain"] body::after {
    opacity: 0;
}

.scroll-progress {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 95;
    height: 2px;
    pointer-events: none;
    background: rgba(255, 255, 255, 0.04);
}

.scroll-progress-bar {
    display: block;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-strong));
    box-shadow: var(--color-glow-accent);
    transform: scaleX(0);
    transform-origin: 0 50%;
    transition: transform 0.08s linear;
}

h1,
h2,
h3 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

h2 {
    margin: 0;
    font-size: var(--fs-h2);
}

h3 {
    margin: 0;
    font-size: var(--fs-h3);
}

p {
    margin: 0 0 var(--space-3);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

ul,
ol {
    margin: 0;
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: 6px;
}

.skip-link {
    position: fixed;
    top: -80px;
    left: var(--space-4);
    z-index: 120;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    background: var(--color-accent);
    color: #191307;
    font-weight: 700;
    transition: top 0.18s ease-out;
}

.skip-link:focus {
    top: var(--space-4);
}

.shell {
    width: min(var(--max-width), calc(100% - 40px));
    margin-inline: auto;
}

main {
    display: block;
}

main.shell {
    padding-bottom: var(--space-8);
}

.mono-label {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

.mono-sub {
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    color: var(--color-text-tertiary);
}

.kicker {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.section-lead {
    margin: 0;
    max-width: 72ch;
    color: var(--color-text-secondary);
    font-size: clamp(15px, 1.6vw, 18px);
}

.section-note {
    margin: var(--space-4) 0 0;
    color: var(--color-text-tertiary);
    font-size: var(--fs-small);
}

.panel {
    position: relative;
    padding: var(--space-5);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(24, 30, 41, var(--ctl-glass)), rgba(9, 12, 18, calc(var(--ctl-glass) * 0.92)));
    backdrop-filter: blur(min(var(--ctl-blur), 32px)) saturate(1.12);
    -webkit-backdrop-filter: blur(min(var(--ctl-blur), 32px)) saturate(1.12);
    box-shadow: var(--shadow-panel), inset 0 1px 0 rgba(255, 255, 255, calc(0.05 * var(--ctl-border)));
    filter: brightness(min(1.8, calc(var(--ctl-brightness) * var(--ctl-glass-bright)))) contrast(var(--ctl-contrast)) saturate(var(--ctl-saturation)) sepia(var(--ctl-warmth));
    transition: border-color calc(0.24s * var(--ctl-motion)), box-shadow calc(0.24s * var(--ctl-motion)), background calc(0.24s * var(--ctl-motion)), filter calc(0.24s * var(--ctl-motion));
}

.panel::before,
.panel::after {
    content: "";
    position: absolute;
    width: 14px;
    height: 14px;
    border: 1px solid var(--color-border-accent);
    opacity: 0.55;
    pointer-events: none;
}

.panel::before {
    top: -1px;
    left: -1px;
    border-right: 0;
    border-bottom: 0;
    border-top-left-radius: var(--radius-lg);
}

.panel::after {
    right: -1px;
    bottom: -1px;
    border-top: 0;
    border-left: 0;
    border-bottom-right-radius: var(--radius-lg);
}

.panel--accent {
    border-color: var(--color-border-accent);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: transform 0.12s ease-out, box-shadow 0.18s ease-out, background-color 0.18s ease-out, border-color 0.18s ease-out;
}

.btn--primary {
    background: var(--color-accent);
    color: #191307;
    font-weight: 700;
}

.btn--primary:hover {
    background: var(--color-accent-strong);
    box-shadow: var(--color-glow-accent);
    transform: translateY(-1px);
}

.btn--ghost {
    border-color: var(--color-border-strong);
    background: rgba(255, 255, 255, 0.02);
    color: var(--color-text-primary);
}

.btn--ghost:hover {
    border-color: var(--color-border-accent);
    background: var(--color-accent-dim);
}

.status-dot {
    flex: 0 0 auto;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-text-tertiary);
}

.status-ok .status-dot {
    background: var(--color-status-ok);
    box-shadow: 0 0 14px rgba(94, 210, 156, 0.6);
}

.status-active .status-dot {
    background: var(--color-status-active);
    box-shadow: 0 0 14px rgba(244, 201, 135, 0.6);
}

.status-boundary .status-dot {
    background: var(--color-status-boundary);
    box-shadow: 0 0 14px rgba(176, 140, 255, 0.6);
}

.status-failclosed .status-dot {
    background: var(--color-status-failclosed);
    box-shadow: 0 0 14px rgba(255, 92, 92, 0.6);
}

.status-info .status-dot {
    background: var(--color-status-info);
    box-shadow: 0 0 14px rgba(122, 167, 255, 0.6);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    padding-top: 12px;
}

.topbar-inner {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-4);
    width: min(1320px, calc(100% - 40px));
    margin-inline: auto;
    padding: 15px 18px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    background: linear-gradient(180deg, rgba(40, 46, 58, calc(var(--ctl-glass) * 0.5 + 0.16)), rgba(13, 17, 25, calc(var(--ctl-glass) * 0.55 + 0.08)));
    backdrop-filter: blur(calc(var(--ctl-blur) * 0.85 + 4px)) saturate(1.15);
    -webkit-backdrop-filter: blur(calc(var(--ctl-blur) * 0.85 + 4px)) saturate(1.15);
    box-shadow: var(--shadow-panel), inset 0 1px 0 rgba(255, 255, 255, 0.09);
    transition: padding 0.18s ease-out, background calc(0.3s * var(--ctl-motion));
}

.topbar-inner::after {
    content: "";
    position: absolute;
    right: 22px;
    bottom: 0;
    left: 22px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-accent), transparent);
    opacity: 0.7;
    pointer-events: none;
}

.topbar.is-compact .topbar-inner {
    padding-block: 11px;
}

.brand {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}

.brand-mark {
    display: block;
    width: auto;
    height: 47px;
    transition: height 0.18s ease-out;
}

.topbar.is-compact .brand-mark {
    height: 40px;
}

.primary-nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-left: auto;
}

.nav-link {
    position: relative;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    white-space: nowrap;
    color: var(--color-text-secondary);
    transition: color 0.18s ease-out, background-color 0.18s ease-out;
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.is-active {
    color: var(--color-text-primary);
    background: var(--color-accent-dim);
}

.nav-link.is-active::after {
    content: "";
    position: absolute;
    right: 10px;
    bottom: 2px;
    left: 10px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-accent);
}

.topbar-actions {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: var(--space-3);
    margin-left: var(--space-3);
    min-width: 0;
    flex-wrap: nowrap;
}

.status-chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 17px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.03);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    transition: border-color 0.18s ease-out, background-color 0.18s ease-out;
}

.status-chip:hover {
    border-color: var(--color-border-accent);
    background: var(--color-accent-dim);
}

.hamburger {
    display: none;
    flex: 0 0 auto;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
}

.hamburger-line {
    display: block;
    width: 18px;
    height: 2px;
    margin-inline: auto;
    background: var(--color-text-primary);
    transition: transform 0.18s ease-out, opacity 0.18s ease-out;
}

.hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    width: min(340px, 86vw);
    padding: var(--space-5);
    overflow-y: auto;
    border-left: 1px solid var(--color-border-accent);
    background: linear-gradient(180deg, rgba(11, 14, 20, 0.98), rgba(5, 6, 10, 0.99));
    backdrop-filter: blur(calc(var(--ctl-blur) * 1.2));
    -webkit-backdrop-filter: blur(calc(var(--ctl-blur) * 1.2));
    transform: translateX(102%);
    visibility: hidden;
    transition: transform 0.26s cubic-bezier(0.22, 0.61, 0.36, 1), visibility 0.26s;
}

.drawer.is-open {
    transform: none;
    visibility: visible;
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 70;
    background: rgba(3, 4, 7, 0.62);
    opacity: 0;
    visibility: hidden;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    transition: opacity 0.26s ease-out, visibility 0.26s;
}

.drawer-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

body.is-locked {
    overflow: hidden;
}

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.drawer-close {
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-primary);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    display: flex;
    flex-direction: column;
}

.drawer-nav a {
    padding: 11px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-size: 15px;
    transition: color 0.18s ease-out, background-color 0.18s ease-out;
}

.drawer-nav a:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.drawer-child {
    padding-left: 24px !important;
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.drawer-sep {
    height: 1px;
    background: var(--color-border-subtle);
}

.drawer-mail {
    margin-top: auto;
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    color: var(--color-accent);
    overflow-wrap: anywhere;
}

.section {
    padding-block: clamp(48px, 7vw, 96px);
}

.section + .section {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.section-head {
    display: grid;
    gap: var(--space-3);
    max-width: 780px;
    margin-bottom: var(--space-7);
}

.section-index {
    color: var(--color-text-tertiary);
}

.hero {
    padding-top: clamp(36px, 5vw, 72px);
    padding-bottom: clamp(40px, 6vw, 72px);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.85fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: center;
}

.hero h1 {
    margin: var(--space-4) 0;
    font-size: var(--fs-display);
    line-height: 1.02;
    letter-spacing: -0.04em;
}

.hero h1 .accent {
    color: var(--color-accent);
}

.hero-lead {
    max-width: 58ch;
    margin: 0;
    color: var(--color-text-secondary);
    font-size: clamp(16px, 1.8vw, 19px);
}

.hero-slogan {
    max-width: 46ch;
    margin: var(--space-5) 0 0;
    padding: 10px 16px;
    border-left: 2px solid var(--color-border-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: var(--color-accent-dim);
    color: var(--color-text-primary);
    font-size: clamp(15px, 1.5vw, 17px);
    line-height: 1.5;
    letter-spacing: 0.01em;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-5);
}

.hero-signals {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: 0;
    margin: var(--space-5) 0 0;
    list-style: none;
}

.signal-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 13px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.hero-panel {
    padding: var(--space-5);
}

.panel-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border-subtle);
}

.meta-rows {
    display: grid;
    margin: var(--space-4) 0 0;
}

.meta-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-3) 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
}

.meta-row:last-child {
    border-bottom: 0;
}

.meta-row dt {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

.meta-row dd {
    margin: 0;
    text-align: right;
    color: var(--color-text-primary);
    font-size: var(--fs-small);
    overflow-wrap: anywhere;
}

.meta-rows--compact .meta-row {
    padding: 10px 0;
}

.panel-foot {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-subtle);
}

.ghost-grid {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: center;
}

.ghost-emblem-wrap {
    display: grid;
    justify-items: center;
    gap: var(--space-4);
}

.ghost-ring {
    position: relative;
    display: grid;
    place-items: center;
    width: clamp(180px, 22vw, 260px);
    aspect-ratio: 1;
    border: 1px solid var(--color-border-accent);
    border-radius: 50%;
    background: radial-gradient(circle at 50% 45%, rgba(244, 201, 135, 0.1), rgba(5, 6, 10, 0) 62%);
    box-shadow: var(--color-glow-accent), inset 0 0 40px rgba(244, 201, 135, 0.06);
}

.ghost-ring::before {
    content: "";
    position: absolute;
    inset: 10px;
    border: 1px dashed rgba(244, 201, 135, 0.22);
    border-radius: 50%;
}

.ghost-ring picture {
    display: grid;
    width: 100%;
    height: 100%;
    place-items: center;
}

.ghost-emblem {
    display: block;
    width: 78%;
    height: auto;
    border-radius: 50%;
    transform: translateY(-7%);
}

.ghost-caption {
    color: var(--color-text-tertiary);
}

.ghost-copy p {
    max-width: 64ch;
    color: var(--color-text-secondary);
}

.theme-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
    padding: 0;
    margin: var(--space-5) 0 0;
    list-style: none;
}

.theme-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    padding: 10px 14px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
    overflow-wrap: anywhere;
}

.flow {
    display: grid;
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: var(--space-3);
    padding: 0;
    margin: 0;
    list-style: none;
}

.flow-step {
    position: relative;
    padding-top: 26px;
}

.flow-step::before {
    content: "";
    position: absolute;
    top: 9px;
    right: 0;
    left: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.12);
}

.flow-step::after {
    content: "";
    position: absolute;
    top: 6px;
    left: 0;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--color-text-tertiary);
}

.flow-step.status-ok::after {
    background: var(--color-status-ok);
    box-shadow: 0 0 12px rgba(94, 210, 156, 0.55);
}

.flow-step.status-active::after {
    background: var(--color-status-active);
    box-shadow: 0 0 12px rgba(244, 201, 135, 0.55);
}

.flow-step.status-boundary::after {
    background: var(--color-status-boundary);
    box-shadow: 0 0 12px rgba(176, 140, 255, 0.6);
}

.flow-step.status-failclosed::after {
    background: var(--color-status-failclosed);
    box-shadow: 0 0 12px rgba(255, 92, 92, 0.55);
}

.flow-step.status-info::after {
    background: var(--color-status-info);
    box-shadow: 0 0 12px rgba(122, 167, 255, 0.55);
}

.flow-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: var(--space-4);
    border-radius: var(--radius-md);
}

.flow-order {
    display: block;
    margin-bottom: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
}

.role-tag {
    align-self: flex-start;
    margin-bottom: var(--space-3);
    padding: 3px 8px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.flow-card h3 {
    margin: 0 0 6px;
    font-size: 15px;
}

.flow-card p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.flow-step.status-boundary .flow-card {
    border-color: rgba(176, 140, 255, 0.36);
    box-shadow: var(--color-glow-boundary);
}

.arch-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
}

.arch-stack {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.arch-layer {
    display: grid;
    grid-template-columns: 130px minmax(0, 1fr);
    gap: var(--space-4);
    align-items: center;
    padding: var(--space-4);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    background: linear-gradient(90deg, rgba(16, 20, 28, 0.72), rgba(11, 14, 20, 0.5));
}

.arch-label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    color: var(--color-text-tertiary);
}

.arch-body h3 {
    margin: 0 0 4px;
    font-size: 16px;
}

.arch-body p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.arch-layer.status-boundary {
    border-color: rgba(176, 140, 255, 0.36);
}

.arch-layer.status-failclosed {
    border-color: rgba(255, 92, 92, 0.32);
}

.arch-notes {
    display: grid;
    gap: var(--space-3);
}

.note-card {
    padding: var(--space-4);
}

.note-card h3 {
    margin: 0 0 6px;
    font-size: 15px;
}

.note-card p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.dev-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
}

.dev-card {
    padding: var(--space-5);
}

.dev-card.status-active {
    border-color: var(--color-border-accent);
}

.dev-card.status-boundary {
    border-color: rgba(176, 140, 255, 0.36);
}

.dev-head {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border-subtle);
}

.state-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 600;
}

.state-indicator.status-ok {
    color: var(--color-status-ok);
}

.state-indicator.status-active {
    color: var(--color-status-active);
}

.state-indicator.status-boundary {
    color: var(--color-status-boundary);
}

.state-indicator.status-failclosed {
    color: var(--color-status-failclosed);
}

.state-indicator.status-info {
    color: var(--color-status-info);
}

.section-cta {
    margin-top: var(--space-5);
}

.principle-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
}

.principle-card {
    display: grid;
    gap: var(--space-2);
    padding: var(--space-5);
}

.principle-id {
    color: var(--color-text-tertiary);
}

.principle-card h3 {
    margin: 0;
    font-size: 17px;
}

.principle-card p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
}

.tech-card {
    display: grid;
    gap: var(--space-2);
    padding: var(--space-5);
}

.tech-card h3 {
    margin: 0;
    font-size: 17px;
}

.tech-card p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.product-card {
    display: grid;
    gap: var(--space-3);
    padding: var(--space-5);
}

.product-card--primary {
    border-color: var(--color-border-accent);
    background: linear-gradient(180deg, rgba(244, 201, 135, 0.07), rgba(11, 14, 20, 0.75));
}

.product-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
}

.product-card h3 {
    margin: 0;
    font-size: var(--fs-h3);
}

.product-card p {
    margin: 0;
    color: var(--color-text-secondary);
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.timeline {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: var(--space-4);
    padding: 0;
    margin: 0;
    list-style: none;
}

.timeline-item {
    position: relative;
    padding-top: 28px;
}

.timeline-item::before {
    content: "";
    position: absolute;
    top: 9px;
    right: 0;
    left: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.12);
}

.timeline-item::after {
    content: "";
    position: absolute;
    top: 5px;
    left: 0;
    width: 9px;
    height: 9px;
    border: 2px solid var(--color-bg-base);
    border-radius: 50%;
    background: var(--color-text-tertiary);
}

.timeline-item.status-ok::after {
    background: var(--color-status-ok);
    box-shadow: 0 0 12px rgba(94, 210, 156, 0.55);
}

.timeline-item.status-active::after {
    background: var(--color-status-active);
    box-shadow: 0 0 12px rgba(244, 201, 135, 0.55);
}

.timeline-item.status-boundary::after {
    background: var(--color-status-boundary);
    box-shadow: 0 0 12px rgba(176, 140, 255, 0.55);
}

.timeline-order {
    display: block;
    margin-bottom: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
}

.timeline-body {
    padding: var(--space-4);
}

.timeline-body h3 {
    margin: var(--space-2) 0 6px;
    font-size: 16px;
}

.timeline-body p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
}

.about-copy p {
    max-width: 64ch;
    color: var(--color-text-secondary);
}

.about-legal {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-top: var(--space-5);
}

.about-legal a {
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    border-bottom: 1px solid transparent;
}

.about-legal a:hover {
    border-color: var(--color-accent);
}

.contact-panel {
    display: grid;
    gap: var(--space-3);
    align-content: start;
}

.contact-panel p {
    margin: 0;
    color: var(--color-text-secondary);
}

.contact-mail {
    font-size: clamp(16px, 2vw, 20px);
    font-weight: 600;
    color: var(--color-text-primary);
    overflow-wrap: anywhere;
}

.contact-domain {
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
    overflow-wrap: anywhere;
}

.site-footer {
    padding-block: var(--space-7) var(--space-6);
}

.footer-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) auto minmax(0, 0.8fr);
    gap: var(--space-6);
    align-items: center;
    padding: var(--space-6);
}

.footer-brand img {
    display: block;
    width: auto;
    height: 34px;
    margin-bottom: var(--space-3);
}

.footer-brand p {
    max-width: 40ch;
    margin: 0;
    color: var(--color-text-tertiary);
    font-size: var(--fs-small);
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav a {
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    transition: color 0.18s ease-out;
}

.footer-nav a:hover {
    color: var(--color-accent);
}

.footer-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: flex-end;
    text-align: right;
    color: var(--color-text-tertiary);
    font-size: var(--fs-small);
}

.footer-domain {
    font-family: var(--font-mono);
    overflow-wrap: anywhere;
}

.page-legal .legal-head {
    display: grid;
    gap: var(--space-3);
    max-width: 780px;
    padding-block: var(--space-7) var(--space-5);
}

.page-legal h1 {
    margin: 0;
    font-size: clamp(30px, 4vw, 46px);
}

.legal-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.legal-stack {
    display: grid;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.legal-card {
    display: grid;
    gap: var(--space-2);
    padding: var(--space-5);
}

.legal-card h2 {
    margin: 0;
    font-size: 18px;
}

.legal-card p {
    margin: 0;
    color: var(--color-text-secondary);
}

.legal-card ul {
    margin: 0;
    padding-left: 20px;
    color: var(--color-text-secondary);
}

.legal-card .label {
    display: block;
    margin-bottom: 4px;
    color: var(--color-text-primary);
    font-weight: 700;
}

.legal-note {
    margin-top: var(--space-6);
    padding: var(--space-4) var(--space-5);
    border: 1px solid var(--color-border-accent);
    border-radius: var(--radius-md);
    background: var(--color-accent-dim);
}

.legal-note h2 {
    margin: 0 0 6px;
    font-size: 16px;
}

.legal-note p {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: var(--fs-small);
}

.has-js .reveal {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.has-js .reveal.is-visible {
    opacity: 1;
    transform: none;
}

.reveal-fallback .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
}

@media (max-width: 1439px) {
    .topbar-inner {
        gap: var(--space-4);
    }

    .topbar-actions {
        gap: var(--space-2);
        margin-left: var(--space-2);
    }

    .nav-link {
        padding: 9px 8px;
    }
}

@media (max-width: 1365px) {
    .topbar-inner {
        gap: var(--space-3);
    }

    .topbar-actions {
        gap: var(--space-1);
        margin-left: var(--space-1);
    }

    .nav-link {
        padding: 9px 7px;
    }
}

@media (max-width: 1279px) {
    .primary-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .flow {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 1023px) {
    .primary-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .has-js .design-trigger {
        min-width: 44px;
        min-height: 44px;
    }

    .hero-grid,
    .ghost-grid,
    .arch-wrap,
    .about-grid,
    .dev-grid {
        grid-template-columns: 1fr;
    }

    .principle-grid,
    .tech-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-panel {
        grid-template-columns: 1fr;
    }

    .footer-meta {
        align-items: flex-start;
        text-align: left;
    }
}

@media (max-width: 767px) {
    .topbar-inner {
        gap: var(--space-3);
    }

    .topbar-actions {
        gap: var(--space-2);
        margin-left: var(--space-2);
    }

    .has-js .design-trigger {
        min-width: 44px;
        min-height: 44px;
    }

    .design-trigger-label {
        display: none;
    }

    .flow {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .timeline {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .timeline-item {
        padding: 0 0 0 26px;
    }

    .timeline-item::before {
        top: 0;
        bottom: 0;
        left: 8px;
        width: 1px;
        height: auto;
    }

    .timeline-item::after {
        top: 8px;
        left: 4px;
    }

    .legal-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    .brand-mark {
        height: 40px;
    }

    .topbar.is-compact .brand-mark {
        height: 36px;
    }
}

@media (max-width: 559px) {
    .shell,
    .topbar-inner {
        width: calc(100% - 28px);
    }

    .topbar-inner {
        gap: var(--space-2);
    }

    .brand-mark {
        height: 34px;
    }

    .topbar.is-compact .brand-mark {
        height: 30px;
    }

    .topbar-actions .status-chip {
        display: none;
    }

    .flow {
        grid-template-columns: 1fr;
    }

    .flow-step {
        padding-top: 0;
        padding-left: 24px;
    }

    .flow-step::before {
        top: 0;
        bottom: 0;
        left: 8px;
        width: 1px;
        height: auto;
    }

    .flow-step::after {
        top: 14px;
        left: 5px;
    }

    .principle-grid,
    .tech-grid,
    .theme-grid {
        grid-template-columns: 1fr;
    }

    .arch-layer {
        grid-template-columns: 1fr;
        gap: var(--space-2);
    }

    .section-head {
        margin-bottom: var(--space-6);
    }
}

@media (max-width: 379px) {
    .topbar-actions .status-chip {
        display: none;
    }

    .brand-mark {
        height: 26px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .has-js .reveal {
        opacity: 1;
        transform: none;
    }
}

html[data-motion="off"] *,
html[data-motion="off"] *::before,
html[data-motion="off"] *::after {
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
}

.section,
.hero {
    position: relative;
}

.section > *,
.hero > * {
    position: relative;
    z-index: 1;
}

.section::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.9;
}

#ghost::before {
    background:
        radial-gradient(560px 300px at 12% 18%, rgba(184, 178, 166, 0.09), transparent 72%),
        radial-gradient(420px 260px at 88% 82%, rgba(244, 201, 135, 0.06), transparent 75%);
}

#workflow::before {
    background-image: repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 64px);
    -webkit-mask-image: linear-gradient(180deg, transparent, #000 22%, #000 74%, transparent);
    mask-image: linear-gradient(180deg, transparent, #000 22%, #000 74%, transparent);
}

#architecture::before {
    background-image:
        linear-gradient(rgba(122, 167, 255, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(122, 167, 255, 0.07) 1px, transparent 1px);
    background-size: 28px 28px;
    -webkit-mask-image: radial-gradient(ellipse at 32% 42%, #000, transparent 72%);
    mask-image: radial-gradient(ellipse at 32% 42%, #000, transparent 72%);
}

#development::before {
    background-image: repeating-linear-gradient(0deg, rgba(244, 201, 135, 0.055) 0 1px, transparent 1px 6px);
    opacity: 0.5;
    -webkit-mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
    mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
}

#technology::before {
    background-image: repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 22px);
    -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000, transparent 70%);
    mask-image: radial-gradient(ellipse at 70% 30%, #000, transparent 70%);
}

#products::before {
    background: radial-gradient(620px 320px at 22% 30%, rgba(244, 201, 135, 0.09), transparent 68%);
}

.flow-step {
    transition: opacity calc(0.2s * var(--ctl-motion)), transform calc(0.2s * var(--ctl-motion));
}

.flow-step::before {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.07), rgba(244, 201, 135, 0.4), rgba(255, 255, 255, 0.07));
    background-size: 220% 100%;
    animation: flow-rail calc(7s / max(var(--ctl-motion), 0.05)) linear infinite;
}

@keyframes flow-rail {
    from {
        background-position: 200% 0;
    }

    to {
        background-position: -200% 0;
    }
}

.flow-step::after {
    transition: transform calc(0.18s * var(--ctl-motion)), box-shadow calc(0.18s * var(--ctl-motion));
}

.flow:hover .flow-step {
    opacity: 0.55;
}

.flow:hover .flow-step:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.flow-step:hover::after {
    transform: scale(1.5);
}

.flow-step.status-boundary .flow-card {
    background: linear-gradient(180deg, rgba(176, 140, 255, 0.1), rgba(9, 12, 18, calc(var(--ctl-glass) * 0.92)));
}

.arch-layer {
    transition: border-color calc(0.18s * var(--ctl-motion)), transform calc(0.18s * var(--ctl-motion)), background calc(0.3s * var(--ctl-motion));
}

.arch-layer:hover {
    transform: translateX(3px);
    border-color: var(--color-border-strong);
    background: linear-gradient(90deg, rgba(28, 34, 45, var(--ctl-glass)), rgba(11, 14, 20, calc(var(--ctl-glass) * 0.5)));
}

.dev-card {
    overflow: hidden;
}

.dev-card::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--card-line, var(--color-border-strong)), transparent);
    opacity: 0.9;
}

.dev-card.status-active {
    --card-line: var(--color-status-active);
}

.dev-card.status-info {
    --card-line: var(--color-status-info);
}

.dev-card.status-boundary {
    --card-line: var(--color-status-boundary);
}

.timeline-item {
    transition: opacity calc(0.2s * var(--ctl-motion));
}

.timeline-item.is-current::after {
    transform: scale(1.5);
}

.timeline-body {
    transition: border-color calc(0.2s * var(--ctl-motion)), box-shadow calc(0.2s * var(--ctl-motion)), transform calc(0.2s * var(--ctl-motion));
}

.timeline-item.is-current .timeline-body {
    border-color: var(--color-border-accent);
    box-shadow: var(--color-glow-accent);
    transform: translateY(-2px);
}

.product-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-2);
}

.product-note {
    margin: 0;
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.06em;
    color: var(--color-text-tertiary);
}

.product-card--controller {
    background: linear-gradient(180deg, rgba(122, 167, 255, 0.07), rgba(9, 12, 18, calc(var(--ctl-glass) * 0.92)));
}

.btn[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.btn:not([disabled]):active {
    transform: translateY(1px);
}

.design-trigger {
    display: none;
}

.has-js .design-trigger {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 10px;
    padding: 10px 17px;
    line-height: inherit;
    border: 1px solid var(--color-border-accent);
    border-radius: var(--radius-pill);
    background: linear-gradient(180deg, rgba(28, 34, 45, 0.92), rgba(12, 15, 22, 0.92));
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: border-color calc(0.2s * var(--ctl-motion)), color calc(0.2s * var(--ctl-motion)), transform calc(0.2s * var(--ctl-motion)), box-shadow calc(0.2s * var(--ctl-motion));
}

.has-js .design-trigger:hover {
    border-color: var(--color-accent);
    color: var(--color-text-primary);
    transform: translateY(-1px);
    box-shadow: var(--color-glow-accent);
}

.design-lamp {
    flex: 0 0 auto;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--color-status-ok);
    box-shadow: 0 0 13px rgba(94, 210, 156, 0.7);
    animation: design-lamp 3.2s ease-in-out infinite;
}

@keyframes design-lamp {
    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 17px rgba(94, 210, 156, 0.95);
    }

    50% {
        opacity: 0.4;
        box-shadow: 0 0 4px rgba(94, 210, 156, 0.25);
    }
}

.design-overlay {
    display: none;
}

.has-js .design-overlay {
    position: fixed;
    inset: 0;
    z-index: 220;
    display: grid;
    place-items: center;
    padding: var(--space-5);
    visibility: hidden;
    opacity: 0;
    transition: opacity calc(0.24s * var(--ctl-motion)) ease-out, visibility calc(0.24s * var(--ctl-motion));
}

.has-js .design-overlay[data-open="true"] {
    visibility: visible;
    opacity: 1;
}

.overlay-scrim {
    position: absolute;
    inset: 0;
    background: radial-gradient(1200px 700px at 50% 28%, rgba(6, 8, 12, 0.5), rgba(2, 3, 6, 0.82));
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity calc(0.3s * var(--ctl-motion)) ease-out;
}

.design-overlay[data-open="true"] .overlay-scrim {
    opacity: 1;
}

.overlay-shell {
    position: relative;
    display: flex;
    flex-direction: column;
    width: min(1120px, 100%);
    max-height: min(92vh, 860px);
    padding: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(14px) scale(0.975);
    transition: opacity calc(0.26s * var(--ctl-motion)) ease-out, transform calc(0.26s * var(--ctl-motion)) cubic-bezier(0.2, 0.8, 0.2, 1);
}

.design-overlay[data-open="true"] .overlay-shell {
    opacity: 1;
    transform: none;
}

.overlay-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-5) var(--space-4);
    border-bottom: 1px solid var(--color-border-subtle);
}

.overlay-title-wrap {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.overlay-title-wrap h2 {
    font-size: clamp(20px, 2.4vw, 26px);
}

.overlay-sub {
    max-width: 62ch;
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-tertiary);
}

.overlay-icon-btn {
    display: inline-flex;
    flex: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-primary);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: border-color calc(0.18s * var(--ctl-motion)), background calc(0.18s * var(--ctl-motion));
}

.overlay-icon-btn:hover {
    border-color: var(--color-border-accent);
    background: var(--color-accent-dim);
}

.overlay-body {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.85fr);
    gap: var(--space-5);
    min-height: 0;
    padding: var(--space-5);
    overflow: hidden;
}

.preview-stage {
    position: relative;
    min-height: 320px;
    overflow: hidden;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    background: var(--color-bg-base);
}

.preview-backdrop {
    position: absolute;
    inset: 0;
    background-color: var(--color-bg-base);
    background-image: var(--cyber-url);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    opacity: min(1, calc(var(--ctl-cyber) * 1.35));
    transition: opacity calc(0.45s * var(--ctl-motion));
}

.preview-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(233, 222, 197, calc(0.42 * var(--ctl-pattern-opacity))) 1.1px, transparent 1.2px);
    background-size: calc(22px * var(--ctl-pattern-scale)) calc(22px * var(--ctl-pattern-scale));
    background-position: center top;
    opacity: calc(var(--ctl-pattern) * var(--ctl-atmosphere));
    transition: opacity calc(0.45s * var(--ctl-motion)), background-size calc(0.45s * var(--ctl-motion));
}

.preview-page {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 100%;
    padding: 14px;
}

.preview-topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    background: linear-gradient(180deg, rgba(40, 46, 58, calc(var(--ctl-glass) * 0.5 + 0.16)), rgba(13, 17, 25, calc(var(--ctl-glass) * 0.55 + 0.08)));
    backdrop-filter: blur(min(var(--ctl-blur), 28px)) saturate(1.12);
    -webkit-backdrop-filter: blur(min(var(--ctl-blur), 28px)) saturate(1.12);
    box-shadow: var(--shadow-panel), inset 0 1px 0 rgba(255, 255, 255, calc(0.07 * var(--ctl-border)));
    filter: brightness(var(--ctl-brightness)) contrast(var(--ctl-contrast)) saturate(var(--ctl-saturation)) sepia(var(--ctl-warmth));
}

.preview-brand {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--color-text-primary);
}

.preview-nav {
    display: flex;
    gap: 6px;
    margin-left: auto;
}

.preview-nav span {
    width: 26px;
    height: 5px;
    border-radius: 3px;
    background: rgba(255, 255, 255, calc(0.14 * var(--ctl-border)));
}

.preview-lamp {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-status-ok);
    box-shadow: 0 0 8px rgba(94, 210, 156, 0.6);
}

.preview-hero {
    display: grid;
    flex: 1;
    grid-template-columns: 1.2fr 0.9fr;
    gap: 12px;
    min-height: 0;
}

.preview-hero-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    filter: brightness(var(--ctl-brightness)) contrast(var(--ctl-contrast)) saturate(var(--ctl-saturation)) sepia(var(--ctl-warmth));
}

.preview-plate {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, rgba(24, 30, 41, var(--ctl-glass)), rgba(9, 12, 18, calc(var(--ctl-glass) * 0.92)));
    backdrop-filter: blur(min(var(--ctl-blur), 26px)) saturate(1.12);
    -webkit-backdrop-filter: blur(min(var(--ctl-blur), 26px)) saturate(1.12);
    box-shadow: var(--shadow-panel), inset 0 1px 0 rgba(255, 255, 255, calc(0.05 * var(--ctl-border)));
    filter: brightness(min(1.8, calc(var(--ctl-brightness) * var(--ctl-glass-bright)))) contrast(var(--ctl-contrast)) saturate(var(--ctl-saturation)) sepia(var(--ctl-warmth));
    transition: background calc(0.3s * var(--ctl-motion)), box-shadow calc(0.3s * var(--ctl-motion)), border-color calc(0.3s * var(--ctl-motion));
}

.preview-plate--hero {
    justify-content: center;
}

.preview-pill {
    align-self: flex-start;
    padding: 2px 7px;
    border: 1px solid var(--color-border-accent);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.12em;
    color: var(--color-text-secondary);
}

.preview-pill--kicker {
    padding-left: 0;
    border-color: transparent;
}

.preview-line {
    display: block;
    height: 7px;
    border-radius: 4px;
    background: rgba(245, 241, 232, 0.16);
}

.preview-line--lg {
    height: 12px;
    background: rgba(245, 241, 232, 0.3);
}

.preview-line--sm {
    height: 6px;
    background: rgba(245, 241, 232, 0.13);
}

.preview-signals {
    display: flex;
    gap: 6px;
    margin-top: 4px;
}

.preview-signals span {
    width: 34px;
    height: 12px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.04);
}

.preview-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.overlay-controls {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    min-height: 0;
    padding-right: 6px;
    overflow-y: auto;
    overscroll-behavior: contain;
}

@supports not selector(::-webkit-scrollbar) {
    .design-overlay .overlay-controls,
    .design-overlay .overlay-body {
        scrollbar-width: thin;
        scrollbar-color: var(--scrollbar-thumb) transparent;
    }
}

.design-overlay .overlay-controls::-webkit-scrollbar,
.design-overlay .overlay-body::-webkit-scrollbar {
    width: var(--scrollbar-size);
    height: var(--scrollbar-size);
}

.design-overlay .overlay-controls::-webkit-scrollbar-track,
.design-overlay .overlay-body::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

.design-overlay .overlay-controls::-webkit-scrollbar-thumb,
.design-overlay .overlay-body::-webkit-scrollbar-thumb {
    border: 4px solid transparent;
    border-radius: var(--radius-pill);
    background-color: var(--scrollbar-thumb);
    background-clip: padding-box;
}

.design-overlay .overlay-controls::-webkit-scrollbar-thumb:hover,
.design-overlay .overlay-body::-webkit-scrollbar-thumb:hover {
    background-color: var(--scrollbar-thumb-hover);
}

.design-overlay .overlay-controls::-webkit-scrollbar-thumb:active,
.design-overlay .overlay-body::-webkit-scrollbar-thumb:active {
    background-color: var(--scrollbar-thumb-hover);
}

.design-overlay .overlay-controls::-webkit-scrollbar-corner,
.design-overlay .overlay-body::-webkit-scrollbar-corner {
    background: transparent;
}

.controller-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.controller-group-label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

.preset-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.preset-btn,
.bg-btn {
    padding: 6px 10px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: border-color calc(0.16s * var(--ctl-motion)), background calc(0.16s * var(--ctl-motion)), color calc(0.16s * var(--ctl-motion));
}

.preset-btn:hover,
.bg-btn:hover {
    border-color: var(--color-border-accent);
    color: var(--color-text-primary);
}

.preset-btn.is-active,
.bg-btn.is-active {
    border-color: var(--color-accent);
    background: var(--color-accent-dim);
    color: var(--color-text-primary);
}

.controller-bg {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
}

.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 8px 10px;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
}

.toggle-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.toggle-row input[type="checkbox"] {
    flex: none;
    width: 34px;
    height: 18px;
    margin: 0;
    accent-color: var(--color-status-ok);
    cursor: pointer;
}

.ctl {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: var(--space-2);
}

.ctl-label {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-2);
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.ctl-value {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    color: var(--color-accent);
}

.ctl-hint {
    font-size: 10px;
    color: var(--color-text-tertiary);
}

.ctl input[type="range"] {
    width: 100%;
    height: 22px;
    margin: 0;
    background: transparent;
    accent-color: var(--color-accent);
    cursor: pointer;
}

.ctl input[type="range"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.overlay-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border-subtle);
    background: rgba(5, 6, 10, 0.35);
}

.overlay-foot-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
}

.overlay-state-note {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

.overlay-state-note.is-dirty {
    color: var(--color-status-active);
}

.overlay-state-note.is-applied {
    color: var(--color-status-ok);
}

.controller-reset {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 7px 12px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-pill);
    background: transparent;
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: border-color calc(0.16s * var(--ctl-motion)), background calc(0.16s * var(--ctl-motion));
}

.controller-reset:hover {
    border-color: var(--color-accent);
    background: var(--color-accent-dim);
}

@media (max-width: 1023px) {
    .overlay-body {
        grid-template-columns: 1fr;
        overflow-y: auto;
    }

    .preview-stage {
        min-height: 250px;
    }

    .overlay-controls {
        overflow: visible;
        padding-right: 0;
    }
}

@media (max-width: 767px) {
    .has-js .design-overlay {
        padding: 10px;
    }

    .overlay-shell {
        max-height: 94vh;
    }

    .overlay-body {
        gap: var(--space-4);
        padding: var(--space-4);
    }

    .overlay-head {
        padding: var(--space-4);
    }

    .preview-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .preview-cards .preview-plate:last-child {
        display: none;
    }

    .overlay-foot {
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-4);
    }

    .overlay-foot-actions {
        justify-content: space-between;
    }
}

@media (max-width: 480px) {
    .design-trigger-label {
        display: none;
    }

    .preview-hero {
        grid-template-columns: 1fr;
    }

    .preview-plate--hero {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .design-lamp {
        animation: none;
    }
}

@media (orientation: landscape) and (max-height: 560px) {
    .has-js .design-overlay {
        padding: 8px;
    }

    .overlay-shell {
        max-height: calc(100vh - 16px);
    }

    .overlay-body {
        grid-template-columns: minmax(0, 1fr) minmax(240px, 0.9fr);
        overflow-y: hidden;
    }

    .preview-stage {
        min-height: 160px;
    }

    .overlay-controls {
        overflow-y: auto;
    }
}

/* ============================================================
   Section 11 · ChatGPT Workflow Tool
   ============================================================ */

#chatgpt::before {
    background: radial-gradient(620px 340px at 82% 18%, rgba(122, 167, 255, 0.10), transparent 70%);
}

.tool-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: center;
}

.tool-visual {
    display: block;
    padding: 12px;
    overflow: hidden;
    color: inherit;
    transition: border-color calc(0.24s * var(--ctl-motion)) ease-out,
        box-shadow calc(0.24s * var(--ctl-motion)) ease-out,
        transform calc(0.24s * var(--ctl-motion)) ease-out;
}

.tool-visual:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-2px);
}

.tool-visual img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: calc(var(--radius-lg) - 10px);
}

.tool-visual-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 12px 4px 2px;
}

.tool-visual-arrow {
    color: var(--color-accent);
    font-size: var(--fs-small);
    transition: transform calc(0.18s * var(--ctl-motion)) ease-out;
}

.tool-visual:hover .tool-visual-arrow {
    transform: translateX(4px);
}

.tool-body p {
    max-width: 62ch;
    color: var(--color-text-secondary);
}

.tool-meta {
    max-width: 420px;
}

.tool-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.tool-signature {
    margin: var(--space-6) 0 0;
    text-align: right;
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.08em;
    color: var(--color-text-tertiary);
}

/* ============================================================
   Detail page · ChatGPT Soft Dark Theme
   ============================================================ */

.page-detail .detail-head {
    display: grid;
    gap: var(--space-3);
    max-width: 860px;
    padding-block: var(--space-7) var(--space-5);
}

.page-detail h1 {
    margin: 0;
    font-size: clamp(32px, 4.6vw, 54px);
}

.detail-back {
    justify-self: start;
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
    transition: color 0.18s ease-out;
}

.detail-back:hover {
    color: var(--color-accent);
}

.detail-meta {
    margin: 0;
}

.detail-visual {
    margin: 0 0 var(--space-6);
    padding: 12px;
}

.detail-visual img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: calc(var(--radius-lg) - 10px);
}

.detail-visual figcaption {
    padding: 12px 4px 2px;
}

.detail-step {
    display: block;
    margin-bottom: 4px;
}

.detail-inline {
    color: var(--color-accent);
    border-bottom: 1px solid transparent;
    transition: border-color 0.18s ease-out;
}

.detail-inline:hover {
    border-bottom-color: var(--color-accent);
}

.detail-cta {
    display: grid;
    gap: var(--space-3);
    margin-top: var(--space-6);
    padding: var(--space-6);
}

.detail-cta p {
    margin: 0;
    max-width: 68ch;
    color: var(--color-text-secondary);
}

.detail-signature {
    margin: var(--space-7) 0 0;
    text-align: right;
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.08em;
    color: var(--color-text-tertiary);
}

@media (max-width: 1023px) {
    .tool-grid {
        grid-template-columns: 1fr;
    }
}

code {
    font-family: var(--font-mono);
    font-size: 0.92em;
    overflow-wrap: anywhere;
    word-break: break-word;
}

/* === 3.3C-R2 public architecture === */

figure {
    margin: 0;
}

.section-figure,
.chapter-figure,
.aa-hero-figure {
    margin: 0 0 var(--space-7);
}

.chapter-figure,
.aa-hero-figure {
    margin-bottom: 0;
}

.diagram {
    display: block;
    width: 100%;
    height: auto;
    max-width: 880px;
    margin: 0 auto;
    background: rgba(5, 6, 10, 0.35);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
}

.dg-frame {
    fill: rgba(11, 14, 20, 0.55);
    stroke: var(--color-border-subtle);
    stroke-width: 1;
}

.dg-node {
    fill: rgba(16, 20, 28, 0.8);
    stroke: var(--color-border-subtle);
    stroke-width: 1;
}

.dg-envelope {
    fill: rgba(176, 140, 255, 0.07);
    stroke: rgba(176, 140, 255, 0.34);
    stroke-width: 1;
}

.dg-base {
    fill: rgba(94, 210, 156, 0.06);
    stroke: rgba(94, 210, 156, 0.28);
    stroke-width: 1;
}

.dg-bus {
    fill: rgba(244, 201, 135, 0.08);
    stroke: rgba(244, 201, 135, 0.34);
    stroke-width: 1;
}

.dg-chip {
    fill: rgba(255, 255, 255, 0.03);
    stroke: var(--color-border-subtle);
    stroke-width: 1;
}

.dg-edge {
    stroke: var(--color-border-strong);
    stroke-width: 1.5;
    stroke-dasharray: 5 5;
}

.dg-title {
    fill: var(--color-text-primary);
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.dg-sub {
    fill: var(--color-text-tertiary);
    font-family: var(--font-mono);
    font-size: 12.5px;
    letter-spacing: 0.02em;
}

.dg-t {
    fill: var(--color-text-primary);
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
}

.dg-s {
    fill: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.02em;
}

.dg-c {
    fill: var(--color-text-primary);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 500;
}

.dg-cc {
    fill: var(--color-text-tertiary);
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.dg-tag {
    fill: var(--color-text-tertiary);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.16em;
}

.dg-bus-title {
    fill: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
}

.dg-bus-sub {
    fill: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.02em;
}

.dg-note {
    fill: var(--color-text-tertiary);
    font-family: var(--font-mono);
    font-size: 12px;
}

.system-body {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
}

.system-prose p {
    max-width: 62ch;
    margin: 0 0 var(--space-4);
    color: var(--color-text-secondary);
}

.system-prose p:last-child {
    margin-bottom: 0;
}

.system-prose .arch-notes {
    margin-top: var(--space-5);
}

.pillar-stack {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.pillar-card {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
    padding: var(--space-4) var(--space-5);
}

.pillar-order {
    padding-top: 3px;
    color: var(--color-text-tertiary);
}

.pillar-label {
    color: var(--color-text-tertiary);
}

.pillar-body h3 {
    margin: 4px 0 6px;
    font-size: 18px;
}

.pillar-body p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.pillar-card.status-boundary {
    border-color: rgba(176, 140, 255, 0.36);
}

.pillar-card.status-active {
    border-color: var(--color-border-accent);
}

.chain-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    padding: 0;
    margin: var(--space-7) 0 0;
    list-style: none;
}

.chain-card {
    display: grid;
    gap: 6px;
    padding: var(--space-4);
}

.chain-role {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.chain-answer {
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.fabric-prose {
    display: grid;
    gap: var(--space-3);
    max-width: 78ch;
    margin: 0 0 var(--space-6);
}

.fabric-prose p {
    margin: 0;
    color: var(--color-text-secondary);
}

.channel-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
    padding: 0;
    margin: 0;
    list-style: none;
}

.channel-card {
    display: grid;
    gap: 6px;
    padding: var(--space-4);
}

.channel-card h3 {
    margin: 0;
    font-size: 15px;
}

.channel-head {
    display: flex;
    align-items: center;
    gap: 8px;
}

.channel-icon {
    flex: none;
    display: grid;
    place-items: center;
    width: 22px;
    height: 22px;
    color: var(--color-text-secondary);
}

.channel-icon .tech-logo {
    width: 100%;
    height: 100%;
}

.channel-card p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.fabric-workloads {
    display: grid;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

.fabric-workloads .theme-grid {
    margin: 0;
}

.rule-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.rule-card {
    display: grid;
    gap: 6px;
    padding: var(--space-5);
}

.rule-card h3 {
    margin: 0 0 6px;
    font-size: 16px;
}

.rule-card p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.rule-label {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

.rule-card.status-failclosed .rule-label {
    color: var(--color-status-failclosed);
}

.rule-card.status-boundary .rule-label {
    color: var(--color-status-boundary);
}

.rule-card.status-ok .rule-label {
    color: var(--color-status-ok);
}

.rule-card.status-info .rule-label {
    color: var(--color-status-info);
}

.rule-text {
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.aa-principles {
    margin: var(--space-6) 0 0;
}

.site-build {
    display: grid;
    gap: var(--space-4);
    margin-top: var(--space-7);
}

.aa-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: center;
    padding-block: clamp(32px, 5vw, 64px);
}

.aa-hero h1 {
    margin: var(--space-4) 0;
    font-size: var(--fs-display);
    line-height: 1.03;
    letter-spacing: -0.03em;
}

.aa-hero h1 .accent {
    color: var(--color-accent);
}

.aa-hero-meta {
    max-width: 480px;
}

.aa-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
}

.aa-intro-copy p {
    margin: 0 0 var(--space-3);
    color: var(--color-text-secondary);
}

.aa-chapters-nav {
    margin: var(--space-6) 0 var(--space-4);
}

.aa-chapters-nav .diagram {
    max-width: 100%;
}

.chapter-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
}

.chapter-copy p {
    max-width: 62ch;
    margin: 0 0 var(--space-4);
    color: var(--color-text-secondary);
}

.chapter-copy p:last-child {
    margin-bottom: 0;
}

.chapter-rules {
    display: grid;
    gap: var(--space-3);
    padding: 0;
    margin: 0;
    list-style: none;
}

.chapter-rules .rule-card {
    padding: var(--space-4);
}

@media (max-width: 1279px) {
    .channel-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 1023px) {
    .system-body,
    .aa-intro-grid,
    .chapter-grid,
    .aa-hero {
        grid-template-columns: 1fr;
    }

    .chain-grid,
    .channel-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .rule-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    .section-figure,
    .chapter-figure,
    .aa-hero-figure,
    .aa-chapters-nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 6px;
    }

    .section-figure .diagram,
    .aa-chapters-nav .diagram,
    .chapter-figure .diagram,
    .aa-hero-figure .diagram {
        min-width: 560px;
    }
}

@media (max-width: 559px) {
    .chain-grid,
    .channel-grid {
        grid-template-columns: 1fr;
    }

    .pillar-card {
        grid-template-columns: 44px minmax(0, 1fr);
        padding: var(--space-4);
    }
}

/* === Homepage section navigation === */

.section-nav {
    position: fixed;
    top: 50%;
    right: clamp(10px, 1.4vw, 20px);
    z-index: 40;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 6px;
    transform: translateY(-50%);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    background: var(--color-surface-glass);
}

.section-nav-btn {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    padding: 0;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-pill);
    background: rgba(11, 14, 20, 0.7);
    color: var(--color-text-primary);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.section-nav-btn:hover:not(:disabled) {
    border-color: var(--color-border-accent);
    color: var(--color-accent);
}

.section-nav-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.section-nav-btn:disabled {
    opacity: 0.35;
    cursor: default;
}

.section-nav-icon {
    display: block;
}

.section-nav-pos {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    color: var(--color-text-tertiary);
}

@media (max-width: 559px) {
    .section-nav {
        right: 8px;
        gap: 4px;
        padding: 4px;
    }

    .section-nav-btn {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .section-nav-pos {
        display: none;
    }
}

/* === Tech-brand markers + dedicated mobile visual pass === */

.pillar-marker {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.04em;
    line-height: 1;
}

.pillar-marker.status-boundary {
    border-color: rgba(176, 140, 255, 0.4);
    background: rgba(176, 140, 255, 0.08);
    color: var(--color-status-boundary);
}

.pillar-marker.status-active {
    border-color: var(--color-border-accent);
    background: var(--color-accent-dim);
    color: var(--color-accent);
}

.pillar-marker.status-info {
    border-color: rgba(122, 167, 255, 0.4);
    background: rgba(122, 167, 255, 0.08);
    color: var(--color-status-info);
}

.pillar-marker--logo {
    padding: 5px;
    border-color: var(--color-border-subtle);
    background: rgba(255, 255, 255, 0.04);
}

.pillar-logo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.pillar-index {
    color: var(--color-text-tertiary);
}

.product-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.product-brand .mono-label {
    line-height: 1.3;
}

.product-logo {
    flex: none;
    width: 40px;
    height: 40px;
    padding: 4px;
    object-fit: contain;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
}

.product-marker {
    display: grid;
    place-items: center;
    flex: none;
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    line-height: 1;
}

.product-marker.status-active {
    border-color: var(--color-border-accent);
    background: var(--color-accent-dim);
    color: var(--color-accent);
}

.product-marker.status-info {
    border-color: rgba(122, 167, 255, 0.4);
    background: rgba(122, 167, 255, 0.08);
    color: var(--color-status-info);
}

@media (max-width: 767px) {
    .pillar-card {
        grid-template-columns: 44px minmax(0, 1fr);
        gap: var(--space-3);
    }

    .pillar-marker {
        width: 40px;
        height: 40px;
        border-radius: var(--radius-sm);
        font-size: 13px;
    }

    .pillar-marker--logo {
        padding: 4px;
    }

    .product-logo,
    .product-marker {
        width: 36px;
        height: 36px;
    }

    .product-head {
        flex-wrap: wrap;
    }

    .hero-actions,
    .product-actions {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-2);
    }

    .hero-actions .btn,
    .product-actions .btn {
        flex: 1 1 auto;
        justify-content: center;
    }

    .section-cta .btn {
        width: 100%;
        justify-content: center;
    }

    .section-lead,
    .system-prose p,
    .fabric-prose p,
    .chapter-copy p {
        font-size: 15px;
    }
}

/* === technology logos === */

.tech-logo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

svg.tech-logo {
    fill: currentColor;
    color: var(--color-text-primary);
}

.pillar-marker--logo .tech-logo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.section-emblem {
    display: block;
    width: 52px;
    height: 52px;
    margin-bottom: var(--space-3);
}

.section-emblem .tech-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.tech-strip {
    display: grid;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

.tech-strip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: var(--space-3);
    padding: 0;
    margin: 0;
    list-style: none;
}

.tech-strip-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
}

.tech-strip-logo {
    flex: none;
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
}

.tech-strip-logo .tech-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.tech-strip-logo--wide {
    width: 100px;
    height: 40px;
}

.tech-strip--routing {
    margin-top: var(--space-4);
}

.tech-chip-marker {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.tech-strip-body {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.tech-strip-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--color-text-primary);
}

.tech-strip-note {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.03em;
    color: var(--color-text-tertiary);
}

@media (max-width: 559px) {
    .section-emblem {
        width: 44px;
        height: 44px;
    }

    .tech-strip-grid {
        grid-template-columns: 1fr;
    }
}

/* === RAGFlow console diagram === */

.dg-code {
    fill: var(--color-status-info);
    font-family: var(--font-mono);
    font-size: 12.5px;
    letter-spacing: 0.01em;
}

.dg-code--dim {
    fill: var(--color-text-tertiary);
}

/* === SYSTEM icon rail scale (+100%) === */

#system .pillar-card {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: var(--space-5);
}

#system .pillar-marker {
    width: 96px;
    height: 96px;
    border-radius: var(--radius-xl);
    font-size: 30px;
}

#system .pillar-marker--logo {
    padding: 10px;
}

@media (max-width: 767px) {
    #system .pillar-card {
        grid-template-columns: 84px minmax(0, 1fr);
        gap: var(--space-4);
    }

    #system .pillar-marker {
        width: 80px;
        height: 80px;
        border-radius: var(--radius-lg);
        font-size: 26px;
    }

    #system .pillar-marker--logo {
        padding: 8px;
    }
}

@media (max-width: 559px) {
    #system .pillar-card {
        grid-template-columns: 84px minmax(0, 1fr);
    }
}

/* === systemd strip icon + CodeNomad emblem scale (+100%) === */

#system .tech-strip-logo {
    width: 80px;
    height: 80px;
}

#system .section-emblem {
    width: 104px;
    height: 104px;
}

#codenomad .section-emblem {
    width: 104px;
    height: 104px;
}

#aa570 .section-emblem {
    width: 104px;
    height: 104px;
}

@media (max-width: 559px) {
    #system .section-emblem {
        width: 88px;
        height: 88px;
    }

    #codenomad .section-emblem {
        width: 88px;
        height: 88px;
    }

    #aa570 .section-emblem {
        width: 88px;
        height: 88px;
    }
}

/* === SECTION 03 (CodeNomad) + SECTION 04 (RAGFlow) scale (+100%) === */

#codenomad .tech-strip-grid {
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: var(--space-4);
}

#codenomad .tech-strip-item {
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
}

#codenomad .tech-strip-logo {
    width: 80px;
    height: 80px;
}

#ragflow .section-emblem {
    width: 104px;
    height: 104px;
}

#ragflow .pillar-card {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: var(--space-5);
}

#ragflow .pillar-marker {
    width: 96px;
    height: 96px;
    border-radius: var(--radius-xl);
    font-size: 30px;
}

#ragflow .pillar-marker--logo {
    padding: 14px;
}

#ragflow .pillar-marker--pair {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px;
}

#ragflow .pillar-pair-item {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    min-width: 0;
}

#ragflow .pillar-pair-item .tech-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

#ragflow .arch-notes {
    gap: var(--space-4);
}

#ragflow .note-card {
    padding: var(--space-5);
}

@media (max-width: 767px) {
    #ragflow .pillar-card {
        grid-template-columns: 84px minmax(0, 1fr);
        gap: var(--space-4);
    }

    #ragflow .pillar-marker {
        width: 80px;
        height: 80px;
        border-radius: var(--radius-lg);
        font-size: 26px;
    }

    #ragflow .pillar-marker--logo {
        padding: 12px;
    }

    #ragflow .pillar-marker--pair {
        gap: 6px;
        padding: 10px;
    }

    #ragflow .pillar-pair-item {
        width: 26px;
        height: 26px;
    }
}

@media (max-width: 559px) {
    #ragflow .pillar-card {
        grid-template-columns: 84px minmax(0, 1fr);
    }

    #ragflow .section-emblem {
        width: 88px;
        height: 88px;
    }
}

/* === SECTION 06 project symbols +100% === */

#projects .product-logo,
#projects .product-marker {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
}

#projects .product-logo {
    padding: 8px;
}

#projects .product-marker {
    font-size: 24px;
}

#projects .product-brand {
    gap: 14px;
}

@media (max-width: 767px) {
    #projects .product-logo,
    #projects .product-marker {
        width: 72px;
        height: 72px;
    }

    #projects .product-logo {
        padding: 8px;
    }

    #projects .product-marker {
        font-size: 20px;
    }
}

/* === SECTION 04: RAGFlow five-card entity panel (premium vertical cards) === */
.ragflow-panel {
    display: grid;
    gap: var(--space-5);
    margin-top: var(--space-6);
    padding: clamp(20px, 3vw, 40px);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, rgba(18, 23, 32, 0.5), rgba(8, 10, 15, 0.4));
    box-shadow: var(--shadow-panel), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.ragflow-intro p {
    max-width: 78ch;
}

.surface-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: var(--space-4);
    align-items: stretch;
    margin: 0;
    padding: 0;
    list-style: none;
}

.surface-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    height: 100%;
    padding: var(--space-5);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(24, 30, 41, 0.55), rgba(9, 12, 18, 0.45));
    backdrop-filter: blur(8px) saturate(1.12);
    box-shadow: var(--shadow-panel), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.surface-card.status-boundary {
    border-color: rgba(176, 140, 255, 0.4);
}

.surface-card.status-active {
    border-color: var(--color-border-accent);
}

.surface-card.status-info {
    border-color: rgba(122, 167, 255, 0.4);
}

.surface-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 72px;
    height: 72px;
    padding: 12px;
    box-sizing: border-box;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text-primary);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.surface-icon.status-boundary {
    border-color: rgba(176, 140, 255, 0.4);
    background: rgba(176, 140, 255, 0.08);
}

.surface-icon.status-active {
    border-color: var(--color-border-accent);
    background: var(--color-accent-dim);
}

.surface-icon.status-info {
    border-color: rgba(122, 167, 255, 0.4);
    background: rgba(122, 167, 255, 0.08);
}

.surface-icon > .tech-logo {
    width: 100%;
    height: 100%;
}

.surface-icon-item {
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    min-width: 0;
}

.surface-icon-item .tech-logo {
    width: 100%;
    height: 100%;
}

.surface-icon-marker {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.surface-body {
    display: grid;
    gap: 8px;
    align-content: start;
    min-width: 0;
}

.surface-label {
    color: var(--color-text-tertiary);
}

.surface-card h3 {
    margin: 0;
    font-size: 17px;
    line-height: 1.25;
}

.surface-card p {
    margin: 0;
    font-size: var(--fs-small);
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.ragflow-memory {
    display: grid;
    gap: var(--space-3);
}

.ragflow-memory .arch-notes {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
}

@media (max-width: 1279px) {
    .surface-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 767px) {
    .surface-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 559px) {
    .ragflow-panel {
        padding: 16px;
        gap: var(--space-4);
    }
    .surface-grid {
        grid-template-columns: 1fr;
    }
    .surface-card {
        padding: var(--space-4);
    }
    .surface-icon {
        width: 60px;
        height: 60px;
        padding: 10px;
    }
    .surface-icon-item {
        width: 22px;
        height: 22px;
    }
    .ragflow-memory .arch-notes {
        grid-template-columns: 1fr;
    }
}

/* === SECTION 05: AA570 work-order benefits + doctrine sync === */
.aa-sub {
    display: grid;
    gap: var(--space-3);
    margin-top: var(--space-7);
}

.aa-subhead {
    display: grid;
    gap: 6px;
}

.aa-subhead h3 {
    margin: 0;
    font-size: var(--fs-h3);
}

.aa-subhead .mono-label {
    color: var(--color-text-tertiary);
}

.aa-prose {
    display: grid;
    gap: var(--space-3);
    max-width: 78ch;
}

.aa-prose p {
    margin: 0;
    color: var(--color-text-secondary);
}

.wo-benefits {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding: 0;
    list-style: none;
}

.wo-benefit {
    display: grid;
    gap: 6px;
    padding: var(--space-4);
}

.wo-benefit h4 {
    margin: 0;
}

.wo-benefit p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.aa-ability {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.aa-ability-card {
    display: grid;
    gap: 6px;
    padding: var(--space-5);
}

.aa-ability-card .rule-label {
    color: var(--color-text-tertiary);
}

.aa-ability-q {
    margin: 0;
    font-weight: 600;
    color: var(--color-text-primary);
}

.aa-ability-card p:last-child {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.aa-ability-op {
    font-family: var(--font-mono);
    font-size: 30px;
    line-height: 1;
    color: var(--color-accent);
    text-align: center;
    padding: 0 var(--space-3);
}

.aa-ability-note {
    margin: var(--space-3) 0 0;
    color: var(--color-accent);
    letter-spacing: 0.12em;
}

.aa-compare {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
    gap: var(--space-4);
    margin-top: var(--space-4);
}

.aa-compare-col {
    display: grid;
    gap: var(--space-3);
    align-content: start;
    padding: var(--space-5);
}

.aa-compare-quote {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--color-text-primary);
    border-left: 2px solid var(--color-border-strong);
    padding-left: 12px;
}

.aa-compare-text {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.aa-wo-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.aa-wo-list li {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-pill);
    padding: 5px 11px;
    background: rgba(255, 255, 255, 0.03);
}

.aa-compare-result {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    color: var(--color-accent);
}

.aa-signature {
    display: grid;
    gap: 6px;
    margin-top: var(--space-4);
    padding: var(--space-4) var(--space-5);
    border-left: 2px solid var(--color-border-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: var(--color-accent-dim);
}

.aa-signature p {
    margin: 0;
    color: var(--color-text-primary);
}

.aa-sync-benefits {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding: 0;
    list-style: none;
}

.aa-sync-benefit {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    align-items: start;
    gap: 8px;
    padding: var(--space-3) var(--space-4);
}

.aa-sync-benefit .status-dot {
    margin-top: 6px;
    background: var(--color-status-ok);
}

.aa-sync-benefit p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.aa-sync-note {
    display: grid;
    gap: 6px;
    margin-top: var(--space-4);
    padding: var(--space-4) var(--space-5);
    border: 1px solid var(--color-border-accent);
    border-radius: var(--radius-md);
    background: var(--color-accent-dim);
}

.aa-sync-note strong {
    font-family: var(--font-mono);
    font-size: 14px;
    letter-spacing: 0.02em;
    color: var(--color-accent);
}

.aa-sync-note p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

@media (max-width: 1279px) {
    .wo-benefits {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .aa-sync-benefits {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 767px) {
    .aa-ability {
        grid-template-columns: 1fr;
    }
    .aa-ability-op {
        padding: 0;
    }
    .aa-compare {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 559px) {
    .wo-benefits {
        grid-template-columns: 1fr;
    }
    .aa-sync-benefits {
        grid-template-columns: 1fr;
    }
}

/* === AA570 detail page: features, work-order, HTML chapter nav === */
.aa-features {
    margin-top: var(--space-6);
}

.aa-feature-group {
    display: grid;
    gap: var(--space-3);
    margin-top: var(--space-5);
}

.aa-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-3);
    margin: 0;
    padding: 0;
    list-style: none;
}

.aa-feature-card {
    display: grid;
    gap: 6px;
    align-content: start;
    padding: var(--space-4);
}

.aa-feature-card .rule-label {
    color: var(--color-text-primary);
}

.aa-feature-icon {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    margin-bottom: 6px;
}

.aa-feature-icon .tech-logo {
    width: 100%;
    height: 100%;
}

.aa-feature-card p {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.aa-feature-card.status-boundary {
    border-color: rgba(176, 140, 255, 0.4);
}

.aa-feature-card.status-active {
    border-color: var(--color-border-accent);
}

.aa-feature-card.status-info {
    border-color: rgba(122, 167, 255, 0.4);
}

.aa-feature-card.status-failclosed {
    border-color: rgba(255, 92, 92, 0.4);
}

.aa-feature-card.status-ok {
    border-color: rgba(94, 210, 156, 0.4);
}

.aa-workorder {
    margin-top: var(--space-6);
}

.aa-chapters-nav {
    margin-top: var(--space-6);
}

.chapter-nav-list {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: var(--space-3);
    margin: 0;
    padding: 0;
    list-style: none;
}

.chapter-nav-link {
    display: grid;
    gap: 4px;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    text-decoration: none;
}

.chapter-nav-link:hover,
.chapter-nav-link:focus-visible {
    border-color: var(--color-border-accent);
    background: var(--color-accent-dim);
}

.chapter-nav-title {
    font-weight: 600;
    color: var(--color-text-primary);
}

@media (max-width: 1279px) {
    .chapter-nav-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 767px) {
    .chapter-nav-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 559px) {
    .chapter-nav-list {
        grid-template-columns: 1fr;
    }
}