:root {
    --accent: rgb(235, 87, 87);
    --accent-strong: rgb(214, 63, 63);
    --accent-soft: rgba(235, 87, 87, 0.12);
    --bg: rgb(25, 25, 25);
    --bg-panel: rgb(31, 31, 31);
    --bg-elevated: rgb(38, 38, 38);
    --bg-contrast: rgb(18, 18, 18);
    --text: rgb(244, 244, 244);
    --text-muted: rgb(170, 170, 170);
    --text-soft: rgb(122, 122, 122);
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);
    --shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --nav-height: 74px;
    --content-width: 1240px;
    --page-padding: 28px;
    --section-space: 110px;
    --font-main: "Space Grotesk", "Segoe UI", sans-serif;
    --font-mono: "IBM Plex Mono", "Cascadia Code", monospace;
    --nav-bg: rgba(25, 25, 25, 0.92);
    --nav-bg-scroll: rgba(20, 20, 20, 0.98);
    --code-bg: rgb(20, 20, 20);
    color-scheme: dark;
}

[data-theme="light"] {
    --accent: rgb(214, 63, 63);
    --accent-strong: rgb(184, 42, 42);
    --accent-soft: rgba(214, 63, 63, 0.1);
    --bg: rgb(247, 244, 240);
    --bg-panel: rgb(255, 252, 248);
    --bg-elevated: rgb(243, 236, 229);
    --bg-contrast: rgb(232, 224, 215);
    --text: rgb(23, 23, 23);
    --text-muted: rgb(90, 90, 90);
    --text-soft: rgb(126, 126, 126);
    --border: rgba(0, 0, 0, 0.08);
    --border-strong: rgba(0, 0, 0, 0.14);
    --shadow: 0 18px 42px rgba(77, 46, 46, 0.08);
    --nav-bg: rgba(247, 244, 240, 0.92);
    --nav-bg-scroll: rgba(247, 244, 240, 0.98);
    --code-bg: rgb(248, 243, 239);
    color-scheme: light;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 0.45;
    pointer-events: none;
    z-index: -2;
}

[data-theme="light"] body::before {
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.025) 1px, transparent 1px);
}

body::after {
    content: "";
    position: fixed;
    inset: -20% auto auto -10%;
    width: 55vw;
    height: 55vw;
    background: radial-gradient(circle, rgba(235, 87, 87, 0.12) 0%, rgba(235, 87, 87, 0) 68%);
    pointer-events: none;
    z-index: -1;
}

[data-theme="light"] body::after {
    background: radial-gradient(circle, rgba(214, 63, 63, 0.08) 0%, rgba(214, 63, 63, 0) 68%);
}

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

button,
input,
textarea {
    font: inherit;
}

code,
pre {
    font-family: var(--font-mono);
}

.container,
.nav-container {
    width: min(var(--content-width), calc(100vw - (var(--page-padding) * 2)));
    margin: 0 auto;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: 0.04em;
}

.logo-icon {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: var(--accent-soft);
    border: 1px solid rgba(235, 87, 87, 0.24);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
    color: var(--text-muted);
}

.nav-links a {
    position: relative;
    font-size: 0.94rem;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 2px;
    transform: scaleX(0);
    transform-origin: left;
    background: var(--accent);
    transition: transform 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    transform: scaleX(1);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-toggle,
.theme-toggle,
.mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--bg-panel);
    color: var(--text);
    cursor: pointer;
}

.lang-toggle {
    min-width: 74px;
    padding: 0 14px;
}

.mobile-menu-btn {
    display: none;
}

.page-shell {
    padding: 28px 0 72px;
}

.page-shell.home-shell {
    padding-top: 36px;
}

.hero-slab,
.subpage-hero,
.hub-hero {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 32px;
    background: linear-gradient(135deg, var(--bg-panel) 0%, var(--bg-contrast) 100%);
    box-shadow: var(--shadow);
}

.hero-slab::before,
.subpage-hero::before,
.hub-hero::before {
    content: "";
    position: absolute;
    inset: auto -10% -30% auto;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(235, 87, 87, 0.16) 0%, rgba(235, 87, 87, 0) 65%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
    gap: 36px;
    align-items: stretch;
    padding: 54px;
}

.hero-copy,
.hero-panel,
.subpage-hero,
.hub-hero {
    position: relative;
    z-index: 1;
}

.kicker,
.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: var(--accent-soft);
    border: 1px solid rgba(235, 87, 87, 0.2);
    color: var(--accent);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.hero-title,
.subpage-hero h1,
.hub-hero h1 {
    font-size: clamp(3rem, 5vw, 5.1rem);
    line-height: 0.96;
    letter-spacing: -0.05em;
}

.hero-title .accent,
.subpage-hero strong,
.hub-hero strong {
    color: var(--accent);
}

.hero-subtitle {
    margin-top: 18px;
    font-size: 1.18rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
}

.hero-description,
.subpage-hero p,
.hub-hero p,
.section-intro,
.copy-body {
    margin-top: 18px;
    max-width: 680px;
    color: var(--text-muted);
    font-size: 1.02rem;
}

.hero-actions,
.cta-buttons,
.hub-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-strong);
}

.btn-secondary {
    background: transparent;
    border-color: var(--border-strong);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.hero-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 30px;
}

.metric-card,
.micro-card,
.pillar-card,
.capability-card,
.step-card,
.status-card,
.lane-card,
.priority-card,
.hub-card,
.principle-card,
.release-card {
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--bg-panel);
    box-shadow: var(--shadow);
}

.metric-card {
    padding: 18px 20px;
}

.metric-card strong {
    display: block;
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.metric-card span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.hero-panel {
    display: grid;
    gap: 16px;
}

.micro-card {
    padding: 22px;
}

.micro-label {
    color: var(--text-soft);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.74rem;
    margin-bottom: 12px;
}

.micro-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.micro-copy {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.manifesto-strip {
    margin-top: 24px;
    border: 1px solid rgba(235, 87, 87, 0.2);
    border-radius: 24px;
    background: linear-gradient(90deg, var(--accent-soft), transparent 70%);
    padding: 26px 32px;
}

.manifesto-strip p {
    font-size: 1.08rem;
    max-width: 980px;
}

.section {
    padding-top: var(--section-space);
}

.section-head {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
    gap: 28px;
    align-items: end;
    margin-bottom: 32px;
}

.section-title {
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1;
    letter-spacing: -0.04em;
}

.grid-3,
.grid-2,
.status-grid,
.lane-grid,
.priority-grid,
.hub-grid,
.principles-grid,
.release-grid,
.capability-grid {
    display: grid;
    gap: 18px;
}

.grid-3,
.hub-grid,
.principles-grid,
.capability-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2,
.lane-grid,
.release-grid,
.status-grid,
.priority-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.pillar-card,
.capability-card,
.step-card,
.status-card,
.lane-card,
.priority-card,
.hub-card,
.principle-card,
.release-card {
    padding: 24px;
}

.card-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: var(--accent-soft);
    color: var(--accent);
    margin-bottom: 16px;
}

.pillar-card h3,
.capability-card h3,
.step-card h3,
.status-card h3,
.lane-card h3,
.priority-card h3,
.hub-card h3,
.principle-card h3,
.release-card h3 {
    font-size: 1.14rem;
    margin-bottom: 10px;
}

.pillar-card p,
.capability-card p,
.step-card p,
.status-card p,
.lane-card p,
.priority-card p,
.hub-card p,
.principle-card p,
.release-card p,
.lane-card li,
.priority-card li,
.release-card li {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.list-clean {
    list-style: none;
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.list-clean li {
    padding-left: 18px;
    position: relative;
}

.list-clean li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--accent);
}

.capability-card .mini-tag,
.release-card .mini-tag,
.status-card .mini-tag {
    display: inline-flex;
    margin-bottom: 14px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text-soft);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.stack-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 18px;
}

.stack-board,
.pipeline-board,
.cta-panel {
    border: 1px solid var(--border);
    border-radius: 26px;
    background: var(--bg-panel);
    padding: 28px;
    box-shadow: var(--shadow);
}

.stack-board h3,
.pipeline-board h3,
.cta-panel h2 {
    font-size: 1.35rem;
    margin-bottom: 14px;
}

.stack-layer {
    display: grid;
    gap: 8px;
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: linear-gradient(90deg, var(--accent-soft), transparent 60%);
}

.stack-layer + .stack-layer {
    margin-top: 12px;
}

.stack-layer small,
.pipeline-stage small,
.release-card small,
.status-card small {
    color: var(--text-soft);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.pipeline-stages {
    display: grid;
    gap: 14px;
    margin-top: 18px;
}

.pipeline-stage {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 16px;
    align-items: start;
    padding: 18px;
    border-radius: 18px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
}

.pipeline-stage .stage-index {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: var(--accent);
    color: white;
    font-weight: 700;
}

.workflow-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.status-card {
    display: grid;
    gap: 12px;
}

.status-card .status-value {
    font-size: 2.3rem;
    line-height: 1;
    letter-spacing: -0.04em;
}

.cta-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 20px;
    margin-top: var(--section-space);
    background: linear-gradient(135deg, var(--bg-panel) 0%, rgba(235, 87, 87, 0.14) 100%);
}

.footer {
    margin-top: 72px;
    padding: 28px 0 40px;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 28px;
}

.footer-brand p,
.footer-column a,
.footer-bottom {
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 56px;
}

.footer-column {
    display: grid;
    gap: 10px;
}

.footer-column h4 {
    margin-bottom: 4px;
}

.footer-bottom {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 0.92rem;
}

.subpage-hero,
.hub-hero {
    padding: 42px;
}

.subpage-hero p,
.hub-hero p {
    max-width: 760px;
}

.roadmap-layout,
.hub-layout {
    padding-top: 28px;
}

.release-grid {
    margin-top: 28px;
}

.release-card strong {
    display: block;
    font-size: 2rem;
    margin: 6px 0 14px;
}

.release-card ul {
    list-style: none;
    display: grid;
    gap: 8px;
}

.release-card li {
    padding-left: 16px;
    position: relative;
}

.release-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 9px;
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: var(--accent);
}

.roadmap-bands,
.docs-principles {
    margin-top: var(--section-space);
}

.hub-grid {
    margin-top: 28px;
}

.hub-card {
    position: relative;
    overflow: hidden;
}

.hub-card::after {
    content: "→";
    position: absolute;
    right: 22px;
    bottom: 18px;
    color: var(--accent);
    font-size: 1.2rem;
}

.hub-card:hover,
.release-card:hover,
.pillar-card:hover,
.capability-card:hover,
.step-card:hover,
.status-card:hover,
.lane-card:hover,
.priority-card:hover,
.principle-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-strong);
}

.hub-card,
.release-card,
.pillar-card,
.capability-card,
.step-card,
.status-card,
.lane-card,
.priority-card,
.principle-card {
    transition: transform 0.18s ease, border-color 0.18s ease;
}

.code-preview {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: var(--code-bg);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
}

.dot {
    width: 11px;
    height: 11px;
    border-radius: 999px;
}

.dot.red { background: rgb(235, 87, 87); }
.dot.yellow { background: rgb(233, 176, 63); }
.dot.green { background: rgb(89, 190, 112); }

.filename {
    margin-left: 6px;
    color: var(--text-soft);
    font-size: 0.82rem;
}

.code-preview pre {
    padding: 20px;
    overflow-x: auto;
}

.code-preview code {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.75;
}

.keyword { color: #d08cff; }
.class-name { color: #ffd479; }
.function { color: #8ac2ff; }
.param { color: #ff8787; }
.type { color: #82d4d4; }
.number { color: #f3b36a; }
.string { color: #a6d97a; }
.comment { color: #7d7d7d; font-style: italic; }
.literal { color: #f3b36a; }
.decorator { color: #d08cff; }

.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.nav-links.mobile-open {
    display: flex !important;
    position: absolute;
    top: calc(100% + 10px);
    left: var(--page-padding);
    right: var(--page-padding);
    flex-direction: column;
    gap: 14px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--bg-panel);
    box-shadow: var(--shadow);
}

@media (max-width: 1080px) {
    .hero-grid,
    .stack-layout,
    .section-head,
    .cta-panel {
        grid-template-columns: 1fr;
    }

    .grid-3,
    .capability-grid,
    .hub-grid,
    .principles-grid,
    .workflow-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 820px) {
    .navbar {
        height: auto;
        padding: 14px 0;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: inline-flex;
    }

    .hero-grid,
    .grid-2,
    .grid-3,
    .capability-grid,
    .status-grid,
    .lane-grid,
    .priority-grid,
    .hub-grid,
    .principles-grid,
    .release-grid,
    .workflow-row,
    .hero-meta {
        grid-template-columns: 1fr;
    }

    .hero-grid,
    .subpage-hero,
    .hub-hero {
        padding: 28px;
    }

    .hero-title,
    .subpage-hero h1,
    .hub-hero h1 {
        font-size: 2.5rem;
    }

    .footer-content,
    .footer-links {
        flex-direction: column;
        gap: 28px;
    }
}