/* ── Alohomora Docs — Shared Stylesheet ── */

:root {
    --bg: #09090B;
    --surface-lowest: #09090B;
    --surface-low: #111113;
    --surface: #18181B;
    --surface-high: #27272A;
    --surface-highest: #3F3F46;
    --on-surface: #FAFAFA;
    --on-surface-variant: #D4D4D8;
    --outline: #71717A;
    --outline-variant: #27272A;
    --brand: #A5B4FC;
    --brand-base: #6366F1;
    --brand-dim: #4F46E5;
    --brand-glow: rgba(99, 102, 241, 0.15);
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --muted: #A1A1AA;
    --log-debug: #60A5FA;
    --log-info: #34D399;
    --log-warn: #FBBF24;
    --log-error: #F87171;
    --span-internal: #818CF8;
    --span-server: #22D3EE;
    --span-client: #A78BFA;
    --span-producer: #34D399;
    --span-consumer: #FBBF24;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --max-w: 1100px;
    --r: 10px;
    --r-lg: 16px;
    --r-xl: 20px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--on-surface);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
    font-family: var(--font-mono); font-size: 0.85em;
    background: var(--surface-high); padding: 2px 7px; border-radius: 5px;
}
img { max-width: 100%; height: auto; display: block; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ── REVEAL ON SCROLL ── */
.reveal {
    opacity: 0; transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── NAV ── */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(9, 9, 11, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav-inner {
    max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
    height: 60px; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
    display: flex; align-items: center; text-decoration: none;
}
.nav-logo svg { height: 20px; width: auto; }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
    color: var(--muted); font-size: 13px; font-weight: 500;
    text-decoration: none; transition: color 0.2s;
}
.nav-links a:hover { color: var(--on-surface); text-decoration: none; }
.nav-links a.active { color: var(--on-surface); }
.nav-gh {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--surface); color: var(--on-surface);
    padding: 7px 16px; border-radius: 8px; font-size: 13px; font-weight: 600;
    border: 1px solid var(--outline-variant); text-decoration: none;
    transition: background 0.2s, border-color 0.2s;
}
.nav-gh:hover { background: var(--surface-high); border-color: var(--outline); text-decoration: none; }
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.hamburger svg { stroke: var(--muted); }

/* ── HERO ── */
.hero {
    padding: 160px 0 100px; position: relative; overflow: clip;
}
.hero::before {
    content: '';
    position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
    width: 900px; height: 600px;
    background: radial-gradient(ellipse at center, var(--brand-glow) 0%, transparent 70%);
    pointer-events: none;
    filter: blur(60px);
}
.hero::after {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.04) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(129, 140, 248, 0.03) 0%, transparent 50%);
    pointer-events: none;
}
.hero-inner { max-width: 720px; position: relative; z-index: 1; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px; padding: 6px 16px;
    font-family: var(--font-mono); font-size: 12px; color: var(--brand);
    margin-bottom: 32px;
}
.hero-badge-dot {
    width: 6px; height: 6px; background: var(--success); border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.hero h1 {
    font-size: clamp(40px, 6vw, 64px); font-weight: 800;
    line-height: 1.08; letter-spacing: -2px; margin-bottom: 24px;
}
.hero h1 .accent {
    background: linear-gradient(135deg, var(--brand-base) 0%, var(--brand) 50%, #c4b5fd 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: clamp(16px, 2vw, 19px); color: var(--muted);
    max-width: 540px; line-height: 1.7; margin-bottom: 40px;
    font-weight: 400;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
.btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--brand-base); color: #fff;
    padding: 12px 28px; border-radius: var(--r); font-weight: 600; font-size: 14px;
    border: none; cursor: pointer; text-decoration: none;
    transition: all 0.2s; position: relative;
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
}
.btn-primary:hover {
    background: var(--brand-dim); text-decoration: none;
    box-shadow: 0 4px 24px rgba(99, 102, 241, 0.3);
    transform: translateY(-1px);
}
.btn-secondary {
    display: inline-flex; align-items: center; gap: 8px;
    background: transparent; color: var(--on-surface);
    padding: 12px 28px; border-radius: var(--r); font-weight: 600; font-size: 14px;
    border: 1px solid var(--outline-variant); cursor: pointer; text-decoration: none;
    transition: all 0.2s;
}
.btn-secondary:hover {
    border-color: var(--outline); text-decoration: none;
    background: rgba(255, 255, 255, 0.03);
}
.hero-install {
    display: inline-flex; align-items: center; gap: 10px;
    background: var(--surface); border: 1px solid var(--outline-variant);
    border-radius: var(--r); padding: 12px 18px;
    font-family: var(--font-mono); font-size: 13px; color: var(--muted);
    max-width: 100%; overflow-x: auto;
}
.hero-install code { color: var(--brand); background: none; padding: 0; }
.copy-btn {
    background: none; border: none; color: var(--outline);
    cursor: pointer; padding: 2px; font-size: 16px; transition: color 0.15s;
}
.copy-btn:hover { color: var(--on-surface); }
.hero-platforms {
    margin-top: 32px; display: flex; gap: 24px;
    color: var(--outline); font-size: 11px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 1.5px;
}

/* ── SHOWCASE ── */
.showcase { padding: 80px 0 100px; position: relative; }
.showcase-tabs { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; justify-content: center; }
.showcase-tab {
    background: var(--surface); border: 1px solid var(--outline-variant);
    border-radius: 8px; padding: 8px 18px;
    font-size: 13px; font-weight: 500; color: var(--muted);
    cursor: pointer; font-family: var(--font-sans);
    transition: all 0.2s;
}
.showcase-tab:hover { color: var(--on-surface); border-color: var(--outline); background: var(--surface-high); }
.showcase-tab.active {
    background: var(--brand-base); color: #fff; border-color: var(--brand-base);
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}

/* ── PHONE FRAME ── */
.phone-frame {
    display: inline-block; position: relative;
    border-radius: 16px; overflow: hidden;
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}
.phone-frame img {
    display: block;
    width: 100%; height: auto;
}

/* ── PLATFORM TOGGLE ── */
.platform-toggle {
    display: flex; gap: 4px; justify-content: center; margin-bottom: 24px;
    background: var(--surface-low); border: 1px solid var(--outline-variant);
    border-radius: 10px; padding: 4px; width: fit-content; margin-inline: auto;
}
.platform-btn {
    background: none; border: none; border-radius: 7px; padding: 8px 20px;
    font-size: 13px; font-weight: 500; color: var(--muted);
    cursor: pointer; font-family: var(--font-sans); transition: all 0.2s;
}
.platform-btn:hover { color: var(--on-surface); }
.platform-btn.active {
    background: var(--brand-base); color: #fff;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* ── SHOWCASE CARD (screenshot + description side by side) ── */
.showcase-card {
    display: flex; gap: 0;
    background: var(--surface-low);
    border: 1px solid var(--outline-variant);
    border-radius: var(--r-xl); overflow: hidden;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5),
                0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}
.showcase-card-media {
    flex: 1; min-width: 0;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg); overflow: hidden;
}
.showcase-card-media > img {
    display: block; width: 100%; height: 100%; object-fit: contain;
    transition: opacity 0.3s ease;
}
.showcase-card-media > img.loading { opacity: 0.3; }
.showcase-card-info {
    flex: 0 0 260px; padding: 32px 28px;
    display: flex; flex-direction: column; justify-content: center;
    border-left: 1px solid var(--outline-variant);
}
.showcase-card-info h3 {
    font-size: 20px; font-weight: 700; margin-bottom: 12px;
    color: var(--on-surface); letter-spacing: -0.3px;
}
.showcase-card-info p {
    font-size: 14px; color: var(--muted); line-height: 1.7;
}
.showcase-card-info .showcase-platform-tag {
    display: inline-block; font-family: var(--font-mono); font-size: 10px;
    padding: 3px 8px; border-radius: 4px; margin-top: 16px;
    background: rgba(99, 102, 241, 0.08); color: var(--brand);
    border: 1px solid rgba(99, 102, 241, 0.15);
}

/* Fan layout for mobile screenshots — full viewport width */
.showcase-fan {
    display: flex; justify-content: center; align-items: flex-end;
    position: relative; min-height: 500px; padding: 24px 0;
    width: 100vw; left: 50%; right: 50%;
    margin-left: -50vw; margin-right: -50vw;
    overflow: hidden;
}
.fan-phone {
    position: absolute;
    transform: translateX(var(--shift)) rotate(var(--rotate)) scale(var(--scale));
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: var(--z, 1);
    opacity: var(--opacity, 1);
    cursor: pointer;
    filter: brightness(var(--brightness, 1));
}
.fan-phone .phone-frame { display: block; width: 220px; }
.showcase-fan-info {
    text-align: center; max-width: 500px; margin: 16px auto 0;
}
.showcase-fan-info h3 {
    font-size: 18px; font-weight: 700; margin-bottom: 8px;
    color: var(--on-surface); letter-spacing: -0.3px;
}
.showcase-fan-info p { font-size: 14px; color: var(--muted); line-height: 1.6; }


/* ── SOCIAL PROOF ── */
.proof {
    padding: 0 0 100px;
}
.proof-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
    background: var(--outline-variant); border: 1px solid var(--outline-variant);
    border-radius: var(--r-lg); overflow: hidden;
}
.proof-item {
    background: var(--surface-low); padding: 32px; text-align: center;
}
.proof-item .num {
    font-size: 36px; font-weight: 800; letter-spacing: -1px;
    background: linear-gradient(135deg, var(--brand), var(--on-surface));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.proof-item .label {
    font-size: 12px; color: var(--outline); margin-top: 4px;
    text-transform: uppercase; letter-spacing: 1px; font-weight: 600;
}

/* ── SECTIONS ── */
section { padding: 120px 0; }
.section-label {
    font-family: var(--font-mono); font-size: 11px; font-weight: 600;
    color: var(--brand); text-transform: uppercase; letter-spacing: 2.5px;
    margin-bottom: 16px;
}
.section-title {
    font-size: clamp(28px, 4vw, 44px); font-weight: 800;
    letter-spacing: -1.5px; margin-bottom: 16px; line-height: 1.1;
}
.section-desc {
    font-size: 16px; color: var(--muted); max-width: 540px; line-height: 1.7;
}

/* ── PHILOSOPHY ── */
.philosophy-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 24px; margin-top: 48px;
}
.philosophy-card {
    padding: 32px;
    background: var(--surface-low);
    border: 1px solid var(--outline-variant);
    border-radius: var(--r-lg);
    transition: border-color 0.3s, transform 0.3s;
    position: relative;
}
.philosophy-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-2px);
}
.philosophy-num {
    font-family: var(--font-mono); font-size: 11px; font-weight: 600;
    color: var(--brand); letter-spacing: 1px; margin-bottom: 14px;
    opacity: 0.7;
}
.philosophy-card h4 {
    font-size: 17px; font-weight: 700; margin-bottom: 10px;
    line-height: 1.3;
}
.philosophy-card p { font-size: 14px; color: var(--muted); line-height: 1.7; }



/* ── FEATURES ── */
.features-bento {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px; margin-top: 48px;
}
.feature-card.bento-card {
    padding: 0; display: flex; flex-direction: column;
    overflow: hidden;
}
.bento-wide { grid-column: span 2; }
.bento-card-screenshot {
    position: relative; overflow: hidden; height: 280px;
    margin: -1px -1px 0; width: calc(100% + 2px);
}
.bento-card-screenshot::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(to bottom, transparent 50%, var(--surface-low) 100%);
    pointer-events: none;
}
.bento-card-screenshot img {
    display: block; width: 100%; height: 100%;
    object-fit: cover; object-position: 70% 30%;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.bento-card:hover .bento-card-screenshot img { transform: scale(1.03); }
.bento-card-body { padding: 16px 24px 24px; }
.bento-card-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.bento-card-body p { font-size: 13px; color: var(--muted); line-height: 1.6; }

.features-grid-compact {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 12px; margin-top: 16px;
}
.features-grid-compact .feature-card { padding: 20px; }
.features-grid-compact .feature-icon {
    width: 32px; height: 32px; border-radius: 8px; margin-bottom: 12px;
}
.features-grid-compact .feature-card h3 { font-size: 14px; }
.features-grid-compact .feature-card p { font-size: 12px; }
.features-grid-compact .feature-card .tag { display: none; }
.feature-card {
    background: var(--surface-low);
    border: 1px solid var(--outline-variant);
    border-radius: var(--r-lg);
    padding: 28px;
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.feature-card:hover {
    border-color: rgba(99, 102, 241, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(99, 102, 241, 0.1) inset;
}
.feature-icon {
    width: 40px; height: 40px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 18px;
}
.feature-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 13px; color: var(--muted); line-height: 1.6; }
.feature-card .tag {
    display: inline-block; font-family: var(--font-mono); font-size: 10px;
    padding: 3px 8px; border-radius: 4px; margin-top: 12px;
    background: rgba(99, 102, 241, 0.08); color: var(--brand);
    border: 1px solid rgba(99, 102, 241, 0.15);
}
.ic-blue { background: rgba(96, 165, 250, 0.1); color: var(--log-debug); }
.ic-purple { background: rgba(167, 139, 250, 0.1); color: var(--span-client); }
.ic-green { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.ic-amber { background: rgba(251, 191, 36, 0.1); color: var(--span-consumer); }
.ic-red { background: rgba(248, 113, 113, 0.1); color: var(--log-error); }
.ic-cyan { background: rgba(34, 211, 238, 0.1); color: var(--span-server); }
.ic-indigo { background: rgba(129, 140, 248, 0.1); color: var(--span-internal); }

/* ── ARCHITECTURE ── */
.arch-section { background: var(--surface-low); overflow: clip; }
.arch-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 56px;
    align-items: center; margin-top: 48px;
}
.arch-diagram {
    background: var(--bg); border: 1px solid var(--outline-variant);
    border-radius: var(--r-lg); padding: 32px;
}
.arch-flow {
    display: flex; flex-direction: column; gap: 12px;
    font-family: var(--font-mono); font-size: 12px;
}
.arch-box {
    padding: 14px 16px; border-radius: 8px;
    border: 1px solid var(--outline-variant); text-align: center;
    transition: border-color 0.2s;
}
.arch-box small { display: block; opacity: 0.6; margin-top: 3px; font-size: 10px; }
.arch-box.debug { background: rgba(99, 102, 241, 0.06); border-color: rgba(99, 102, 241, 0.25); color: var(--brand); }
.arch-box.noop { background: rgba(248, 113, 113, 0.05); border-color: rgba(248, 113, 113, 0.2); color: var(--log-error); }
.arch-box.shared { background: rgba(34, 211, 238, 0.05); border-color: rgba(34, 211, 238, 0.2); color: var(--span-server); }
.arch-box.desktop { background: rgba(167, 139, 250, 0.05); border-color: rgba(167, 139, 250, 0.2); color: var(--span-client); }
.arch-split { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.arch-arrow { text-align: center; color: var(--outline); font-size: 14px; line-height: 1; }
.arch-text { min-width: 0; }
.arch-text h3 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.arch-points { list-style: none; }
.arch-points li {
    padding: 10px 0; border-bottom: 1px solid var(--outline-variant);
    font-size: 14px; color: var(--muted); display: flex; gap: 12px;
    line-height: 1.6;
}
.arch-points li:last-child { border-bottom: none; }
.arch-points .bullet { color: var(--brand); font-weight: 700; flex-shrink: 0; margin-top: 1px; }

/* ── SETUP ── */
.setup-steps { margin-top: 56px; }
.setup-step {
    display: grid; grid-template-columns: 48px 1fr; gap: 24px;
    padding-bottom: 40px; margin-bottom: 40px;
    border-bottom: 1px solid var(--outline-variant);
}
.setup-step:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.step-num {
    width: 40px; height: 40px; border-radius: 10px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--brand);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-weight: 700; font-size: 14px;
}
.step-content { min-width: 0; }
.step-content h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step-content p { font-size: 14px; color: var(--muted); margin-bottom: 16px; line-height: 1.7; }

/* ── CODE BLOCKS ── */
.code-block {
    background: var(--bg); border: 1px solid var(--outline-variant);
    border-radius: var(--r); overflow: hidden;
}
.code-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 16px; background: var(--surface);
    border-bottom: 1px solid var(--outline-variant);
    font-family: var(--font-mono); font-size: 11px; color: var(--outline);
}
pre {
    padding: 18px; overflow-x: auto;
    font-family: var(--font-mono); font-size: 12.5px;
    line-height: 1.8; color: var(--muted);
}
pre .kw { color: var(--span-client); }
pre .fn { color: var(--log-debug); }
pre .str { color: var(--log-info); }
pre .cmt { color: var(--outline); font-style: italic; }
pre .num { color: var(--span-consumer); }
pre .type { color: var(--span-server); }

/* ── API ── */
.tabs {
    display: flex; gap: 0;
    border-bottom: 1px solid var(--outline-variant);
    overflow-x: auto; -webkit-overflow-scrolling: touch;
}
.tab-btn {
    background: none; border: none; padding: 12px 22px;
    font-family: var(--font-sans); font-size: 13px; font-weight: 600;
    color: var(--outline); cursor: pointer; white-space: nowrap;
    border-bottom: 2px solid transparent; transition: color 0.2s;
}
.tab-btn.active { color: var(--brand); border-bottom-color: var(--brand); }
.tab-btn:hover { color: var(--on-surface); }
.tab-panel { display: none; padding-top: 16px; }
.tab-panel.active { display: block; }
.api-section { background: var(--surface-low); }
.api-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
    gap: 12px; margin-top: 24px;
}
.api-card {
    background: var(--bg); border: 1px solid var(--outline-variant);
    border-radius: var(--r); padding: 18px;
    transition: border-color 0.2s;
}
.api-card:hover { border-color: var(--outline); }
.api-card h4 {
    font-family: var(--font-mono); font-size: 13px; font-weight: 600;
    margin-bottom: 6px; color: var(--brand); word-break: break-word;
}
.api-card p { font-size: 12px; color: var(--muted); line-height: 1.6; }

/* ── MOCK RULES FEATURE ── */
.mock-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
    margin-top: 40px; align-items: start;
}

/* ── COMPARISON ── */
.comparison-section { background: var(--surface-low); }
.comparison-table {
    width: 100%; border-collapse: collapse; margin-top: 36px; font-size: 13px;
    border: 1px solid var(--outline-variant); border-radius: var(--r-lg); overflow: hidden;
}
.comparison-table th {
    text-align: left; padding: 12px 18px;
    background: var(--surface); border-bottom: 1px solid var(--outline-variant);
    font-weight: 700; font-size: 11px; text-transform: uppercase;
    letter-spacing: 1px; color: var(--outline);
}
.comparison-table td {
    padding: 11px 18px; border-bottom: 1px solid var(--outline-variant);
    color: var(--muted);
}
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table tr:hover td { background: rgba(99, 102, 241, 0.03); }
.check { color: var(--success); font-weight: 700; }
.cross { color: var(--outline); }

/* ── DESKTOP COMPANION ── */
.desktop-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px; margin-top: 40px;
}
.desktop-card {
    background: var(--surface-low); border: 1px solid var(--outline-variant);
    border-radius: var(--r-lg); padding: 24px;
    transition: border-color 0.3s, transform 0.2s;
}
.desktop-card:hover {
    border-color: rgba(99, 102, 241, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}
.desktop-card h3 { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.desktop-card p { font-size: 12px; color: var(--muted); line-height: 1.5; }
.desktop-card.span-2 { grid-column: span 2; }

/* ── CTA ── */
.cta {
    padding: 120px 0; text-align: center; position: relative; overflow: clip;
}
.cta::before {
    content: '';
    position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
    width: 800px; height: 400px;
    background: radial-gradient(ellipse at center, var(--brand-glow) 0%, transparent 70%);
    pointer-events: none; filter: blur(80px);
}
.cta .section-title { position: relative; z-index: 1; }
.cta .section-desc {
    margin: 14px auto 40px; max-width: 480px;
    position: relative; z-index: 1;
}

/* ── FOOTER ── */
footer {
    border-top: 1px solid var(--outline-variant); padding: 48px 0;
}
.footer-inner {
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 20px;
}
.footer-left p { font-size: 12px; color: var(--outline); margin-top: 6px; }
.footer-links { display: flex; gap: 28px; }
.footer-links a {
    font-size: 13px; color: var(--muted); text-decoration: none;
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--on-surface); }

/* ── SUBPAGE HEADER ── */
.page-header {
    padding: 140px 0 60px; position: relative; overflow: clip;
}
.page-header::before {
    content: '';
    position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
    width: 700px; height: 400px;
    background: radial-gradient(ellipse at center, var(--brand-glow) 0%, transparent 70%);
    pointer-events: none; filter: blur(80px);
}
.page-header .container { position: relative; z-index: 1; }
.page-header h1 {
    font-size: clamp(28px, 4vw, 42px); font-weight: 800;
    letter-spacing: -1.2px; line-height: 1.15; margin-bottom: 14px;
}
.page-header p {
    font-size: 16px; color: var(--muted); max-width: 540px; line-height: 1.7;
}

/* ── DOC CONTENT ── */
.doc-content { padding: 0 0 100px; }
.doc-content h2 {
    font-size: 24px; font-weight: 800; letter-spacing: -0.5px;
    margin: 72px 0 16px; padding-top: 24px;
    border-top: 1px solid var(--outline-variant);
}
.doc-content h2:first-child { margin-top: 0; border-top: none; padding-top: 0; }
.doc-content h3 {
    font-size: 18px; font-weight: 700;
    margin: 40px 0 12px;
}
.doc-content h4 {
    font-size: 15px; font-weight: 700;
    margin: 28px 0 8px;
}
.doc-content p {
    font-size: 14px; color: var(--muted); line-height: 1.7;
    margin-bottom: 16px; max-width: 720px;
}
.doc-content ul, .doc-content ol {
    font-size: 14px; color: var(--muted); line-height: 1.7;
    margin-bottom: 16px; padding-left: 24px; max-width: 720px;
}
.doc-content li { margin-bottom: 6px; }
.doc-content .code-block { margin: 16px 0 24px; }
.doc-content table {
    width: 100%; border-collapse: collapse; margin: 16px 0 24px; font-size: 13px;
    border: 1px solid var(--outline-variant); border-radius: var(--r); overflow: hidden;
}
.doc-content table th {
    text-align: left; padding: 10px 16px;
    background: var(--surface); border-bottom: 1px solid var(--outline-variant);
    font-weight: 700; font-size: 12px; color: var(--outline);
}
.doc-content table td {
    padding: 10px 16px; border-bottom: 1px solid var(--outline-variant);
    color: var(--muted); vertical-align: top;
}
.doc-content table tr:last-child td { border-bottom: none; }
.doc-content table tr:hover td { background: rgba(99, 102, 241, 0.03); }
.doc-content strong { color: var(--on-surface); font-weight: 600; }
.doc-content .note {
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--r); padding: 16px 20px;
    margin: 16px 0 24px; font-size: 13px; color: var(--muted); line-height: 1.7;
}
.doc-content .note strong { color: var(--brand); }
.doc-content .warning {
    background: rgba(245, 158, 11, 0.06);
    border: 1px solid rgba(245, 158, 11, 0.15);
    border-radius: var(--r); padding: 16px 20px;
    margin: 16px 0 24px; font-size: 13px; color: var(--muted); line-height: 1.7;
}
.doc-content .warning strong { color: var(--warning); }
.doc-content .code-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}

/* ── TOC sidebar for doc pages ── */
.doc-layout {
    display: grid; grid-template-columns: 1fr 220px; gap: 56px;
    align-items: start;
}
.doc-layout > *:first-child { min-width: 0; }
.doc-toc {
    position: sticky; top: 84px;
    font-size: 12px;
}
.doc-toc h4 {
    font-size: 11px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1.5px; color: var(--outline); margin-bottom: 12px;
}
.doc-toc a {
    display: block; padding: 5px 0; color: var(--muted);
    text-decoration: none; transition: color 0.2s;
    border-left: 2px solid transparent; padding-left: 12px;
}
.doc-toc a:hover { color: var(--on-surface); text-decoration: none; }
.doc-toc a.active { color: var(--brand); border-left-color: var(--brand); }

/* ── RESPONSIVE ── */

/* Tablet landscape / small desktop */
@media (max-width: 900px) {
    .features-bento { grid-template-columns: repeat(3, 1fr); }
    .features-grid-compact { grid-template-columns: repeat(2, 1fr); }
    .arch-grid { grid-template-columns: 1fr; gap: 32px; }
    .showcase-card-info { flex: 0 0 200px; padding: 24px 20px; }
    .showcase-card-info h3 { font-size: 16px; }
    .showcase-card-info p { font-size: 13px; }
    .philosophy-grid { grid-template-columns: repeat(2, 1fr); }
    .proof-grid { grid-template-columns: repeat(2, 1fr); }
    .mock-grid { grid-template-columns: 1fr; }
    .doc-layout { grid-template-columns: 1fr; }
    .doc-toc { display: none; }
    .doc-content .code-grid { grid-template-columns: 1fr; }
    .footer-links { flex-wrap: wrap; gap: 16px 24px; }
}

/* Tablet portrait */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: block; }
    nav.open .nav-links {
        display: flex; flex-direction: column;
        position: absolute; top: 60px; left: 0; right: 0;
        background: var(--bg); border-bottom: 1px solid var(--outline-variant);
        padding: 16px 24px; gap: 14px; z-index: 200;
    }
    .hero { padding: 120px 0 80px; }
    .hero h1 { font-size: clamp(32px, 5vw, 48px); }
    section { padding: 80px 0; }
    .showcase-tabs { gap: 4px; }
    .showcase-tab { padding: 6px 12px; font-size: 12px; }
    .desktop-grid { grid-template-columns: repeat(2, 1fr); }
    .page-header { padding: 110px 0 40px; }
    .doc-content h2 { font-size: 20px; margin: 48px 0 12px; }
    .doc-content h3 { font-size: 16px; margin: 32px 0 10px; }
    .doc-content table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* Mobile */
@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .hero { padding: 110px 0 60px; }
    .hero h1 { font-size: 32px; letter-spacing: -1px; }
    .hero-sub { font-size: 15px; }
    .hero-install { display: flex; font-size: 11px; overflow-x: auto; white-space: nowrap; }
    .hero-actions { flex-direction: column; }
    .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
    section { padding: 64px 0; }
    .section-title { font-size: 24px; }
    .features-bento { grid-template-columns: 1fr; }
    .bento-wide { grid-column: span 1; }
    .features-grid-compact { grid-template-columns: repeat(2, 1fr); }
    .features-grid-compact .feature-card .tag { display: inline-block; }
    .philosophy-grid { grid-template-columns: 1fr; }
    .showcase-fan { min-height: 440px; }
    .fan-phone .phone-frame { width: 180px; }
    .proof-grid { grid-template-columns: repeat(2, 1fr); }
    .proof-item { padding: 20px 16px; }
    .proof-item .num { font-size: 24px; }
    .api-grid { grid-template-columns: 1fr; }
    .setup-step { grid-template-columns: 40px 1fr; gap: 16px; }
    .arch-diagram { padding: 16px; }
    .arch-split { grid-template-columns: 1fr; }
    .arch-box { padding: 10px 12px; font-size: 11px; }
    .comparison-table { font-size: 11px; }
    .comparison-table th, .comparison-table td { padding: 8px 10px; }
    .footer-inner { flex-direction: column; text-align: center; gap: 24px; }
    .footer-links { justify-content: center; flex-wrap: wrap; gap: 12px 20px; }
    .showcase-card { flex-direction: column; }
    .showcase-card-info { flex: 0 0 auto; border-left: none; border-top: 1px solid var(--outline-variant); padding: 20px; text-align: center; }
    .showcase-tabs { gap: 4px; }
    .showcase-tab { padding: 5px 10px; font-size: 11px; }
    .desktop-grid { grid-template-columns: 1fr; }
    .desktop-card { padding: 18px; }
    .page-header { padding: 100px 0 32px; }
    .page-header h1 { font-size: 24px; }
    .page-header p { font-size: 14px; }
    .doc-content { padding: 0 0 64px; }
    .doc-content h2 { font-size: 18px; margin: 40px 0 10px; }
    .doc-content h3 { font-size: 15px; margin: 28px 0 8px; }
    .doc-content p, .doc-content ul, .doc-content ol { font-size: 13px; }
    .doc-content table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .doc-content .note, .doc-content .warning { padding: 12px 16px; font-size: 12px; }
    .cta { padding: 80px 0; }
    pre { padding: 14px; font-size: 11.5px; }
}

/* Tiny screens */
@media (max-width: 400px) {
    .proof-grid { grid-template-columns: 1fr; }
    .showcase-tabs { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
    .showcase-tab { flex-shrink: 0; }
    .hero-platforms { gap: 16px; font-size: 10px; }
    .fan-phone:first-child, .fan-phone:last-child { display: none; }
    .showcase-fan { min-height: 440px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
}