/* ==========================================================
   Archscribe Landing — style chung cho mọi trang
   Đổi giao diện: chỉ cần sửa các biến trong :root bên dưới.
   ========================================================== */
:root {
  /* Màu thương hiệu (lấy từ logo) */
  --c-cyan: #00a8ff;
  --c-blue: #0a6cff;
  --c-violet: #6a2cff;
  --c-navy: #0b1640;

  /* Màu nền & chữ */
  --c-bg: #f6f8ff;
  --c-surface: #ffffff;
  --c-soft: #eaf1ff;
  --c-soft-2: #f1ecff;
  --c-text: #1d2550;
  --c-muted: #5d6690;
  --c-line: rgba(11, 22, 64, .07);

  /* Gradient */
  --g-brand: linear-gradient(120deg, var(--c-cyan), var(--c-blue) 50%, var(--c-violet));
  --g-soft: linear-gradient(135deg, var(--c-soft), var(--c-soft-2));
  --g-dark: linear-gradient(135deg, #0b1640, #1a1f6b 60%, #3a1c8f);

  /* Chữ */
  --font: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --fs-hero: clamp(2.2rem, 5vw, 3.8rem);
  --fs-h2: clamp(1.7rem, 3.2vw, 2.6rem);

  /* Hình khối */
  --radius: 24px;
  --radius-sm: 14px;
  --shadow-sm: 0 2px 6px rgba(26, 50, 140, .04), 0 10px 30px -12px rgba(26, 50, 140, .14);
  --shadow: 0 24px 60px -24px rgba(26, 50, 140, .32);
  --container: 1180px;
  --section-y: clamp(64px, 9vw, 112px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { color: var(--c-navy); line-height: 1.2; margin: 0 0 .6em; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--c-blue); outline-offset: 3px; border-radius: 6px; }
svg.lucide { width: 1.15em; height: 1.15em; flex: none; }
.muted { color: var(--c-muted); }
.h2 { font-size: var(--fs-h2); }

.container { width: min(100% - 40px, var(--container)); margin-inline: auto; }
.section { padding-block: var(--section-y); position: relative; }
.section-alt { background: var(--c-surface); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 { font-size: var(--fs-h2); }
.section-head p { color: var(--c-muted); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--c-blue); background: var(--c-soft);
  padding: 6px 14px; border-radius: 99px; margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--g-brand); }
.text-grad { background: var(--g-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Nút */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px; border-radius: 99px; font-weight: 600; border: 0;
  transition: transform .2s, box-shadow .2s, background .2s; cursor: pointer; font: inherit; font-weight: 600;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--g-brand); color: #fff; box-shadow: 0 12px 30px -10px rgba(10, 108, 255, .6); }
.btn-ghost { background: var(--c-surface); color: var(--c-navy); box-shadow: var(--shadow-sm); }
.btn-ghost:hover { color: var(--c-blue); }
.btn-light { background: #fff; color: var(--c-navy); }

/* Header */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 248, 255, .8); backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--c-line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand img { height: 34px; width: auto; }
.nav-links { display: flex; gap: 30px; list-style: none; margin: 0; padding: 0; font-weight: 500; }
.nav-links a { color: var(--c-muted); transition: color .2s; }
.nav-links a:hover { color: var(--c-blue); }
.nav-toggle { display: none; background: none; border: 0; color: var(--c-navy); cursor: pointer; padding: 8px; }
.nav-toggle svg.lucide { width: 26px; height: 26px; }

/* Hero */
.hero { padding-block: 72px 96px; overflow: hidden; }
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(90px); z-index: -1; opacity: .4;
}
.hero::before { width: 480px; height: 480px; background: var(--c-cyan); top: -180px; left: -180px; animation: drift 18s ease-in-out infinite alternate; }
.hero::after { width: 520px; height: 520px; background: var(--c-violet); bottom: -260px; right: -180px; opacity: .28; animation: drift 22s ease-in-out infinite alternate-reverse; }
@keyframes drift { to { transform: translate(120px, 60px) scale(1.15); } }
.hero h1 .text-grad { background-size: 200% auto; animation: shine 6s linear infinite; }
@keyframes shine { to { background-position: 200% center; } }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.hero h1 { font-size: var(--fs-hero); font-weight: 800; letter-spacing: -.02em; }
.hero-lead { font-size: 1.15rem; color: var(--c-muted); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 30px; }
.hero-trust { display: flex; gap: 10px 26px; flex-wrap: wrap; list-style: none; padding: 0; margin: 0; color: var(--c-muted); font-size: .93rem; font-weight: 500; }
.hero-trust li { display: inline-flex; align-items: center; gap: 8px; }
.hero-trust svg { color: var(--c-blue); }

/* Minh hoạ pipeline */
.visual { position: relative; }
.visual-card { background: rgba(255, 255, 255, .7); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; backdrop-filter: blur(10px); }
.code {
  font-family: var(--font-mono); font-size: .84rem; background: var(--c-navy); color: #c9d6ff;
  border-radius: var(--radius-sm); padding: 18px 20px; margin: 0; overflow-x: auto; line-height: 1.7;
}
.code .k { color: #8fb4ff; } .code .a { color: #ffb86b; } .code .s { color: #7ee2b8; }
.pipe { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.pipe span { text-align: center; font-size: .82rem; font-weight: 600; padding: 10px 6px; border-radius: 10px; background: var(--c-soft); color: var(--c-blue); }
.pipe span:last-child { background: var(--g-brand); color: #fff; }
.float {
  position: absolute; background: #fff; border-radius: 16px; box-shadow: var(--shadow);
  padding: 10px 16px 10px 10px; font-size: .85rem; font-weight: 600; color: var(--c-navy);
  display: flex; align-items: center; gap: 10px; animation: bob 5s ease-in-out infinite;
}
.float svg.lucide { box-sizing: content-box; padding: 8px; border-radius: 10px; background: var(--g-brand); color: #fff; width: 18px; height: 18px; }
.float-1 { top: -22px; right: -10px; }
.float-2 { bottom: -26px; left: -18px; animation-delay: -2.5s; }
@keyframes bob { 50% { transform: translateY(-10px); } }

/* Dải công nghệ: logo chạy ngang, dừng khi hover */
.tech { padding-block: 34px; background: var(--c-surface); }
.tech-title { text-align: center; font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--c-muted); margin-bottom: 22px; }
.marquee { overflow: hidden; -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; gap: 18px; width: max-content; list-style: none; margin: 0; padding: 6px 0; animation: marquee 40s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track li { display: flex; align-items: center; gap: 10px; padding: 10px 20px; border-radius: 99px; background: var(--c-bg); font-weight: 600; color: var(--c-navy); white-space: nowrap; transition: transform .2s ease-out, box-shadow .2s ease-out; }
.marquee-track li:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.marquee-track img, .marquee-track svg.lucide { width: 24px; height: 24px; color: var(--c-navy); }
@keyframes marquee { to { transform: translateX(calc(-50% - 9px)); } }

/* Lưới thẻ: không viền, nổi bằng bóng mềm */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--c-surface); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card h3, .step h3 { font-size: 1.15rem; }
.card p, .step p { color: var(--c-muted); margin: 0; }
.icon {
  width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center;
  margin-bottom: 20px; background: var(--g-soft); color: var(--c-blue); transition: background .25s, color .25s;
}
.icon svg.lucide { width: 24px; height: 24px; }
.card:hover .icon { background: var(--g-brand); color: #fff; }
/* Viền gradient sáng lên khi hover */
.card { position: relative; }
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px; background: var(--g-brand);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .25s ease-out; pointer-events: none;
}
.card:hover::before { opacity: 1; }

/* Bento tính năng: hàng 2+1 bất đối xứng */
.bento { grid-template-columns: repeat(3, 1fr); }
.card-wide { grid-column: span 2; display: grid; grid-template-columns: 1fr 1.1fr; column-gap: 28px; align-items: center; }
.card-wide > :not(.mini-seq, .mini-chat, .mini-files) { grid-column: 1; }
.card-wide .mini-seq, .card-wide .mini-chat, .card-wide .mini-files { grid-column: 2; grid-row: 1 / span 3; }
.mini-files { list-style: none; margin: 0; padding: 14px; display: grid; gap: 8px; border-radius: var(--radius-sm); background: var(--g-soft); }
.mini-files li { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 10px; background: #fff; font: 600 .78rem var(--font-mono); color: var(--c-navy); box-shadow: var(--shadow-sm); transition: transform .2s ease-out; }
.mini-files svg { width: 16px; height: 16px; color: var(--c-blue); }
.card:hover .mini-files li { transform: translateX(6px); }
.card:hover .mini-files li:nth-child(2) { transition-delay: .05s; } .card:hover .mini-files li:nth-child(3) { transition-delay: .1s; } .card:hover .mini-files li:nth-child(4) { transition-delay: .15s; }
.mini-seq { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; padding: 18px 12px 26px; border-radius: var(--radius-sm); background: var(--g-soft); min-height: 190px; }
.mini-seq span { text-align: center; font-size: .72rem; font-weight: 700; color: var(--c-navy); background: #fff; border-radius: 8px; padding: 6px 2px; height: fit-content; box-shadow: var(--shadow-sm); }
.mini-seq::before { content: ""; position: absolute; inset: 52px 12px 14px; background: repeating-linear-gradient(90deg, transparent 0 calc(12.5% - 1px), rgba(10, 108, 255, .35) calc(12.5% - 1px) 12.5%, transparent 12.5% 25%); }
.mini-seq i {
  position: absolute; font: 600 .66rem var(--font-mono); color: var(--c-blue); font-style: normal;
  left: calc(12px + (100% - 24px) * (var(--f) * 2 + 1) / 8); width: calc((100% - 24px) * (var(--t) - var(--f)) / 4);
  top: calc(66px + var(--f) * 38px); padding-bottom: 4px; border-bottom: 2px solid var(--c-blue);
  transform-origin: left; animation: draw 4s ease-out infinite; animation-delay: calc(var(--f) * .5s);
}
.mini-seq i::after { content: ""; position: absolute; right: -2px; bottom: -6px; border: 5px solid transparent; border-left-color: var(--c-blue); border-right: 0; }
@keyframes draw { 0% { transform: scaleX(0); opacity: 0; } 25%, 85% { transform: scaleX(1); opacity: 1; } 100% { opacity: 0; } }
.mini-chat { display: grid; gap: 10px; padding: 18px; border-radius: var(--radius-sm); background: var(--g-dark); font-size: .85rem; }
.mini-chat p { margin: 0; padding: 10px 14px; border-radius: 14px; max-width: 90%; }
.mini-chat .me { background: var(--g-brand); color: #fff; justify-self: end; border-bottom-right-radius: 4px; }
.mini-chat .tool { display: flex; align-items: center; gap: 8px; font: 600 .75rem var(--font-mono); color: #7ee2b8; background: rgba(126, 226, 184, .1); }
.mini-chat .ai { background: rgba(255, 255, 255, .1); color: #dfe6ff; border-bottom-left-radius: 4px; }

/* Quy trình: số thứ tự lớn, nối bằng đường gradient chạy khi cuộn tới */
.steps { counter-reset: step; position: relative; }
.steps::before { content: ""; position: absolute; top: 26px; left: 12%; right: 12%; height: 2px; background: var(--g-brand); transform: scaleX(0); transform-origin: left; transition: transform 1.4s ease-out .2s; }
.steps.in::before { transform: scaleX(1); }
.step { position: relative; padding: 0 10px; text-align: center; display: flex; flex-direction: column; align-items: center; }
.step .icon { margin: 0 0 6px; position: relative; background: var(--c-surface); box-shadow: var(--shadow-sm), 0 0 0 6px var(--c-surface); }
.step:hover .icon { background: var(--g-brand); color: #fff; }
.step h3 { order: 2; } .step p { order: 3; }
.step::after {
  counter-increment: step; content: "0" counter(step); order: 1;
  font-size: 2.6rem; font-weight: 800; line-height: 1.2; margin-bottom: 4px;
  background: var(--g-brand); -webkit-background-clip: text; background-clip: text; color: transparent; opacity: .35;
}

/* Terminal giả lập */
.term { margin-top: 28px; border-radius: var(--radius-sm); background: var(--c-navy); box-shadow: var(--shadow); overflow: hidden; }
.term-bar { display: flex; gap: 7px; padding: 12px 14px; background: rgba(255, 255, 255, .05); }
.term-bar span { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.term-bar span:nth-child(2) { background: #febc2e; } .term-bar span:nth-child(3) { background: #28c840; }
.term pre { margin: 0; padding: 16px 18px 20px; font: .84rem/1.8 var(--font-mono); color: #c9d6ff; white-space: pre-wrap; }
.term .p { color: #7ee2b8; }
.term .typed::after { content: "▋"; color: var(--c-cyan); animation: blink 1s steps(1) infinite; }
.term .out { color: #8fb4ff; opacity: 0; transition: opacity .5s; }
.term.done .out { opacity: 1; }
@keyframes blink { 50% { opacity: 0; } }

/* Hiện dần khi cuộn */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease-out, transform .7s ease-out; transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

/* Hai cột */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.checks { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.checks li { display: flex; gap: 12px; }
.checks li::before {
  content: ""; flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 50%;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / 12px no-repeat,
    var(--g-brand);
}
.tabs { display: grid; gap: 16px; }
.tab { display: flex; gap: 18px; align-items: flex-start; padding: 24px; }
.tab .icon { flex: none; margin: 0; }
.tab h3 { margin-bottom: .3em; }

/* Minh hoạ bảo mật */
.secure { background: var(--g-dark); color: #dfe6ff; border-radius: var(--radius); padding: 36px; max-width: 420px; margin-inline: auto; width: 100%; box-shadow: var(--shadow); text-align: center; }
.secure-badge { width: 72px; height: 72px; margin: 0 auto 14px; border-radius: 22px; display: grid; place-items: center; background: var(--g-brand); color: #fff; }
.secure-badge svg.lucide { width: 34px; height: 34px; }
.secure > b { color: #fff; font-size: 1.1rem; }
.secure ul { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; text-align: left; }
.secure li { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 14px; background: rgba(255, 255, 255, .07); }
.secure li span { margin-left: auto; font-size: .8rem; font-weight: 600; color: #7ee2b8; }

/* Bảng giá */
.pricing { grid-template-columns: repeat(2, minmax(0, 400px)); justify-content: center; }
.plan { padding: 38px; position: relative; display: flex; flex-direction: column; }
.plan .price { font-size: 2.6rem; font-weight: 800; color: var(--c-navy); margin: 4px 0 4px; }
.plan .price small { font-size: 1rem; font-weight: 500; color: var(--c-muted); }
.plan .checks { margin-bottom: 30px; flex: 1; }
.plan .btn { width: 100%; justify-content: center; }
.plan-pro { box-shadow: var(--shadow); }
.plan-pro::before { opacity: 1; padding: 2px; background: conic-gradient(from var(--a, 0deg), var(--c-cyan), var(--c-blue), var(--c-violet), var(--c-cyan)); animation: spin 5s linear infinite; }
@property --a { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
@keyframes spin { to { --a: 360deg; } }
.badge { position: absolute; top: -14px; right: 28px; background: var(--g-brand); color: #fff; font-size: .78rem; font-weight: 700; padding: 5px 14px; border-radius: 99px; }
.fine { text-align: center; color: var(--c-muted); font-size: .9rem; margin: 28px 0 0; }
.fine a, .faq a, .legal a { color: var(--c-blue); font-weight: 600; }

/* FAQ */
.faq { max-width: 820px; margin-inline: auto; display: grid; gap: 12px; }
.faq details { background: var(--c-surface); border-radius: var(--radius-sm); padding: 20px 24px; box-shadow: var(--shadow-sm); }
.faq summary { cursor: pointer; font-weight: 600; color: var(--c-navy); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--c-blue); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--c-muted); margin: 14px 0 0; }

/* CTA */
.cta { background: var(--g-brand); background-size: 200% 200%; animation: shine 10s ease-in-out infinite alternate; color: #fff; border-radius: 28px; padding: clamp(40px, 6vw, 72px); text-align: center; position: relative; overflow: hidden; }
.cta::after { content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%; background: rgba(255, 255, 255, .12); top: -160px; right: -100px; animation: drift 14s ease-in-out infinite alternate; }
.cta > * { position: relative; z-index: 1; }
.cta h2 { color: #fff; font-size: var(--fs-h2); }
.cta p { opacity: .9; max-width: 600px; margin: 0 auto 28px; }

/* Trang chính sách */
.page-hero { padding-block: 64px 40px; text-align: center; background: var(--g-soft); }
.page-hero h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
.page-hero p { color: var(--c-muted); margin: 0; }
.legal-wrap { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 40px; align-items: start; }
.legal-nav { position: sticky; top: 96px; display: grid; gap: 4px; }
.legal-nav a { padding: 10px 14px; border-radius: 12px; color: var(--c-muted); font-weight: 500; display: flex; align-items: center; gap: 10px; }
.legal-nav a:hover { color: var(--c-blue); background: var(--c-soft); }
.legal-nav a[aria-current] { background: var(--c-surface); color: var(--c-blue); box-shadow: var(--shadow-sm); font-weight: 600; }
.legal { background: var(--c-surface); border-radius: var(--radius); padding: clamp(28px, 5vw, 52px); box-shadow: var(--shadow-sm); }
.legal h2 { font-size: 1.25rem; margin-top: 1.8em; }
.legal h2:first-child { margin-top: 0; }
.legal p, .legal li { color: var(--c-muted); }
.legal ul { padding-left: 1.2em; }
.legal li { margin-bottom: .4em; }
.legal ol { padding-left: 1.4em; }
.doc code { font-family: var(--font-mono); font-size: .86em; background: var(--c-soft); color: var(--c-navy); padding: 2px 6px; border-radius: 6px; }
.doc pre { background: var(--c-navy); color: #c9d6ff; border-radius: var(--radius-sm); padding: 16px 20px; overflow-x: auto; margin: 0 0 1.2em; }
.doc pre code { background: none; color: inherit; padding: 0; }
.table-wrap { overflow-x: auto; margin: 0 0 1.2em; border-radius: var(--radius-sm); box-shadow: 0 0 0 1px var(--c-line); }
.doc table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.doc th { background: var(--c-soft); color: var(--c-navy); text-align: left; }
.doc th, .doc td { padding: 12px 16px; vertical-align: top; color: var(--c-muted); }
.doc tbody tr + tr td { box-shadow: inset 0 1px 0 var(--c-line); }
.callout { background: var(--g-soft); border-radius: var(--radius-sm); padding: 14px 18px; }
.contact-list { list-style: none; padding: 0 !important; display: grid; gap: 14px; }
.contact-list li { display: flex; gap: 14px; align-items: center; color: var(--c-text) !important; }
.contact-list .icon { margin: 0; width: 44px; height: 44px; border-radius: 14px; }

/* Footer */
.footer { background: var(--c-navy); color: #9aa6da; padding: 64px 0 28px; margin-top: var(--section-y); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 36px; }
.footer h4 { color: #fff; margin: 0 0 14px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer a { display: inline-flex; align-items: center; gap: 8px; }
.footer a:hover { color: #fff; }
.footer-logo { height: 34px; width: auto; margin-bottom: 16px; filter: brightness(0) invert(1); }
.copyright {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px;
  margin-top: 44px; padding-top: 22px; font-size: .88rem; box-shadow: 0 -1px 0 rgba(255, 255, 255, .08);
}
.copyright span { display: inline-flex; align-items: center; gap: 8px; }

/* Docs (bố cục 3 cột kiểu shopify.dev) */
.nav-links a[aria-current] { color: var(--c-blue); font-weight: 600; }
.docs-menu { display: none; }
.docs-layout { display: grid; grid-template-columns: 272px minmax(0, 1fr) 232px; align-items: start; max-width: 1440px; margin-inline: auto; }
.docs-side, .docs-toc { position: sticky; top: 72px; max-height: calc(100vh - 72px); overflow-y: auto; padding: 28px 20px; }
.docs-side { background: var(--c-surface); min-height: calc(100vh - 72px); box-shadow: 1px 0 0 var(--c-line); }
.docs-search { display: flex; align-items: center; gap: 8px; background: var(--c-bg); border-radius: 10px; padding: 0 12px; margin-bottom: 18px; box-shadow: inset 0 0 0 1px var(--c-line); color: var(--c-muted); }
.docs-search:focus-within { box-shadow: inset 0 0 0 2px var(--c-blue); }
.docs-search svg { width: 16px; height: 16px; flex: none; }
.docs-search input { border: 0; background: none; font: inherit; font-size: .9rem; padding: 10px 0; width: 100%; outline: none; color: var(--c-text); }
.docs-side [hidden] { display: none !important; }
.docs-search-status { font-size: .85rem; color: var(--c-muted); }
.docs-results a { display: block; padding: 12px 8px; border-bottom: 1px solid var(--c-line); color: var(--c-blue); font-size: .9rem; overflow-wrap: anywhere; }
.docs-results a:hover, .docs-results a:focus-visible { background: var(--c-soft); }
.docs-results small { display: block; color: var(--c-muted); margin-top: 5px; }
.docs-group { font-size: .74rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--c-navy); margin: 18px 0 6px 10px; }
.docs-side nav a { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; color: var(--c-muted); font-size: .93rem; font-weight: 500; }
.docs-side nav a svg { width: 17px; height: 17px; flex: none; }
.docs-side nav a:hover { color: var(--c-navy); background: var(--c-bg); }
.docs-side nav a[aria-current] { color: var(--c-blue); background: var(--c-soft); font-weight: 600; }
.docs-main { padding: 36px clamp(20px, 5vw, 64px) 64px; max-width: 840px; width: 100%; margin-inline: auto; }
.crumbs { font-size: .85rem; color: var(--c-muted); margin-bottom: 18px; }
.crumbs a { color: var(--c-blue); }
.docs-main h1 { font-size: clamp(1.9rem, 3.4vw, 2.5rem); margin-bottom: .3em; }
.docs-lead { font-size: 1.12rem; color: var(--c-muted); margin: 0 0 32px; padding-bottom: 28px; box-shadow: 0 1px 0 var(--c-line); }
.doc h2 { font-size: 1.4rem; margin-top: 1.9em; scroll-margin-top: 84px; }
.doc h3 { font-size: 1.12rem; margin-top: 1.5em; scroll-margin-top: 84px; }
.doc p, .doc li { color: var(--c-text); }
.doc a { color: var(--c-blue); font-weight: 600; }
.doc ul { padding-left: 1.2em; } .doc ol { padding-left: 1.4em; } .doc li { margin-bottom: .4em; }
.doc pre { position: relative; }
.copy { position: absolute; top: 8px; right: 8px; font: 600 .75rem var(--font); color: #c9d6ff; background: rgba(255, 255, 255, .08); border: 0; border-radius: 6px; padding: 5px 10px; cursor: pointer; opacity: .7; }
.copy:hover, .copy:focus-visible { opacity: 1; background: rgba(255, 255, 255, .16); }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.pager a { display: grid; gap: 4px; padding: 16px 20px; border-radius: var(--radius-sm); background: var(--c-surface); box-shadow: var(--shadow-sm); color: var(--c-navy); font-weight: 600; transition: color .2s; }
.pager a:hover { color: var(--c-blue); }
.pager small { color: var(--c-muted); font-weight: 500; }
.pager-next { grid-column: 2; text-align: right; }
.docs-toc p { font-size: .74rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--c-navy); margin: 8px 0 10px; }
.docs-toc a { display: block; padding: 5px 0 5px 12px; font-size: .86rem; color: var(--c-muted); box-shadow: inset 2px 0 0 var(--c-line); }
.docs-toc a.toc-h3 { padding-left: 24px; }
.docs-toc a:hover { color: var(--c-navy); }
.docs-toc a.active { color: var(--c-blue); box-shadow: inset 2px 0 0 var(--c-blue); font-weight: 600; }
.docs-layout + .footer { margin-top: 0; }
@media (max-width: 1180px) {
  .docs-layout { grid-template-columns: 252px minmax(0, 1fr); }
  .docs-toc { display: none; }
}
@media (max-width: 860px) {
  .docs-layout { grid-template-columns: minmax(0, 1fr); }
  .docs-menu { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px; font: 600 .9rem var(--font); color: var(--c-navy); background: var(--c-surface); border: 0; border-radius: 10px; padding: 9px 14px; box-shadow: var(--shadow-sm); cursor: pointer; }
  .docs-side { display: none; position: fixed; inset: 72px 0 0; z-index: 40; max-height: none; }
  .docs-side.open { display: block; }
  .pager { grid-template-columns: 1fr; } .pager-next { grid-column: auto; }
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .split, .legal-wrap { grid-template-columns: minmax(0, 1fr); }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .bento { grid-template-columns: 1fr; }
  .card-wide { grid-column: auto; grid-template-columns: 1fr; }
  .card-wide .mini-seq, .card-wide .mini-chat, .card-wide .mini-files { grid-column: 1; grid-row: auto; margin-top: 22px; }
  .steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .legal-nav { position: static; grid-auto-flow: column; overflow-x: auto; }
  .legal-nav a { white-space: nowrap; }
}
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links, .nav .btn { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0;
    background: var(--c-surface); padding: 20px; box-shadow: var(--shadow);
  }
  .grid-3, .grid-4, .pricing, .footer-grid { grid-template-columns: 1fr; }
  .float { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .term .out { opacity: 1; }
  html { scroll-behavior: auto; }
}