:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f0f2f8;
  --text: #1d2330;
  --muted: #687084;
  --line: #dfe3ec;
  --primary: #6d5dfc;
  --primary-dark: #5141e8;
  --primary-soft: #eeecff;
  --accent: #ffca57;
  --success: #1f9d75;
  --danger: #d75858;
  --shadow: 0 18px 50px rgba(32, 38, 54, .10);
  --radius: 24px;
  --radius-sm: 15px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.58;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.nav-open { overflow: hidden; }
a { color: inherit; }
img, svg { max-width: 100%; }
button, input { font: inherit; }
button { color: inherit; }
[hidden] { display: none !important; }

.skip-link {
  position: fixed; left: 12px; top: -60px; z-index: 200;
  background: #111; color: #fff; padding: 10px 14px; border-radius: 10px;
}
.skip-link:focus { top: 12px; }
.container { width: min(calc(100% - 32px), var(--container)); margin-inline: auto; }
.section { padding: 92px 0; }
.section-sm { padding: 58px 0; }
.section-head { max-width: 760px; margin-bottom: 38px; }
.section-head.center { text-align: center; margin-inline: auto; }
.section-head h2, .hero h1 { text-wrap: balance; }
.section-head h2 { font-size: clamp(32px, 4vw, 52px); line-height: 1.08; margin: 0 0 16px; letter-spacing: -.035em; }
.section-head p { color: var(--muted); font-size: 19px; margin: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px;
  color: var(--primary-dark); background: var(--primary-soft); padding: 7px 11px;
  border-radius: 999px; font-size: 13px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 5px rgba(31,157,117,.12); }
.muted { color: var(--muted); }
.small { font-size: 14px; }

.site-header {
  position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(223,227,236,.82);
  background: rgba(246,247,251,.88); backdrop-filter: blur(16px);
}
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 900; letter-spacing: -.025em; font-size: 20px; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center; border-radius: 13px;
  color: #fff; background: linear-gradient(135deg, var(--primary), #8a7fff 62%, #b8b1ff); box-shadow: 0 9px 24px rgba(109,93,252,.28);
}
.brand-mark svg { width: 22px; height: 22px; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a { text-decoration: none; padding: 9px 11px; border-radius: 10px; color: #474e60; font-size: 15px; font-weight: 700; }
.nav a:hover, .nav a:focus-visible { background: var(--surface); color: var(--text); }
.nav-toggle { display: none; border: 0; background: transparent; padding: 8px; cursor: pointer; border-radius: 10px; }
.nav-toggle span { display: block; width: 23px; height: 2px; margin: 5px; background: currentColor; }

.btn {
  display: inline-flex; justify-content: center; align-items: center; gap: 9px; min-height: 48px;
  padding: 12px 18px; border: 1px solid transparent; border-radius: 14px; text-decoration: none;
  cursor: pointer; font-weight: 800; transition: .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 12px 28px rgba(109,93,252,.27); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--surface); border-color: var(--line); }
.btn-soft { background: var(--primary-soft); color: var(--primary-dark); }
.btn-sm { min-height: 40px; padding: 8px 13px; border-radius: 11px; font-size: 14px; }
.btn svg { width: 18px; height: 18px; }

.hero { padding: 78px 0 76px; overflow: hidden; position: relative; }
.hero::before {
  content: ''; position: absolute; width: 540px; height: 540px; right: -150px; top: -190px;
  border-radius: 50%; background: radial-gradient(circle, rgba(109,93,252,.18), rgba(109,93,252,0) 68%); pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 58px; }
.hero h1 { font-size: clamp(43px, 6.5vw, 76px); line-height: .98; letter-spacing: -.055em; margin: 0 0 24px; }
.gradient-text { color: var(--primary); }
.hero-lead { font-size: clamp(19px, 2vw, 23px); max-width: 680px; color: var(--muted); margin: 0 0 28px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { display: flex; align-items: flex-start; gap: 10px; margin-top: 20px; color: var(--muted); font-size: 14px; max-width: 620px; }
.hero-note svg { flex: 0 0 auto; width: 18px; margin-top: 2px; color: var(--success); }

.phone-wrap { position: relative; max-width: 480px; margin-inline: auto; }
.phone-glow { position: absolute; inset: 12% -8%; border-radius: 50%; background: rgba(109,93,252,.22); filter: blur(42px); }
.phone {
  position: relative; padding: 14px; border-radius: 38px; background: #202532; box-shadow: 0 30px 80px rgba(30,36,53,.28); transform: rotate(1.2deg);
}
.phone-screen { overflow: hidden; min-height: 630px; border-radius: 27px; background: #eef3f7; border: 1px solid rgba(255,255,255,.24); }
.phone-top { display: flex; align-items: center; gap: 12px; padding: 17px 18px; background: #fff; border-bottom: 1px solid #e7eaf0; }
.avatar { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: 900; background: linear-gradient(135deg,var(--primary),#9589ff); }
.phone-title strong { display: block; }
.phone-title span { font-size: 12px; color: var(--success); }
.chat { padding: 22px 16px 18px; display: flex; flex-direction: column; gap: 13px; }
.bubble { max-width: 88%; padding: 12px 14px; border-radius: 17px; box-shadow: 0 2px 5px rgba(30,36,53,.05); font-size: 14px; }
.bubble.bot { background: #fff; border-bottom-left-radius: 5px; align-self: flex-start; }
.bubble.user { background: #daf8c9; border-bottom-right-radius: 5px; align-self: flex-end; }
.inline-menu { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 4px; }
.menu-chip { padding: 9px 8px; text-align: center; border-radius: 10px; background: #fff; color: #386da8; border: 1px solid #dfe7f0; font-size: 12px; font-weight: 750; }
.file-card { display: flex; align-items: center; gap: 10px; margin-top: 9px; padding: 10px; border-radius: 12px; background: #f5f7fb; border: 1px solid #e4e8f0; min-width: 0; }
.file-icon { width: 36px; height: 36px; border-radius: 9px; display: grid; place-items: center; color: #fff; background: var(--success); font-weight: 900; }
.file-card small { color: var(--muted); display: block; }

.stats { margin-top: -26px; position: relative; z-index: 4; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.stat-card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 20px; box-shadow: 0 10px 30px rgba(35,41,56,.06); }
.stat-card strong { display: block; font-size: 25px; line-height: 1.1; margin-bottom: 6px; }
.stat-card span { color: var(--muted); font-size: 14px; }

.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 25px;
  box-shadow: 0 12px 35px rgba(35,41,56,.05); transition: .22s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #d4d0ff; }
.card-icon { width: 50px; height: 50px; border-radius: 16px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary-dark); font-size: 25px; margin-bottom: 18px; }
.card h3 { margin: 0 0 9px; font-size: 20px; line-height: 1.2; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card a.card-link { display: inline-flex; margin-top: 15px; color: var(--primary-dark); font-weight: 800; text-decoration: none; }

.role-tabs { background: #202532; color: #fff; border-radius: 32px; padding: 34px; overflow: hidden; }
.tab-list { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 26px; }
.tab-list button { border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.07); color: #fff; padding: 11px 15px; border-radius: 12px; cursor: pointer; font-weight: 800; }
.tab-list button[aria-selected="true"] { background: #fff; color: var(--text); }
.role-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center; }
.role-panel h3 { font-size: 35px; margin: 0 0 12px; line-height: 1.06; }
.role-panel p { color: #c6cbd7; }
.check-list { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 11px; }
.check-list li { display: flex; gap: 10px; }
.check-list li::before { content: '✓'; color: var(--accent); font-weight: 900; }
.role-visual { min-height: 280px; border-radius: 24px; background: linear-gradient(145deg, rgba(255,255,255,.12), rgba(255,255,255,.04)); border: 1px solid rgba(255,255,255,.13); padding: 22px; }
.metric-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.metric { padding: 18px; background: rgba(255,255,255,.10); border-radius: 17px; }
.metric strong { display: block; font-size: 26px; }
.metric span { color: #c6cbd7; font-size: 13px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: steps; }
.step { position: relative; padding: 26px; border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); }
.step::before { counter-increment: steps; content: counter(steps); width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; background: var(--primary); color: #fff; font-weight: 900; margin-bottom: 18px; }
.step h3 { margin: 0 0 9px; }
.step p { color: var(--muted); margin: 0; }

.demo-wrap { display: grid; grid-template-columns: 320px 1fr; gap: 18px; align-items: start; }
.demo-nav { display: grid; gap: 9px; }
.demo-nav button { text-align: left; border: 1px solid var(--line); background: var(--surface); border-radius: 15px; padding: 16px; cursor: pointer; font-weight: 800; }
.demo-nav button.is-active { background: var(--primary); color: #fff; border-color: var(--primary); }
.demo-stage { min-height: 430px; border-radius: 28px; padding: 26px; background: #e9eef3; border: 1px solid var(--line); }
.demo-chat { max-width: 680px; margin-inline: auto; display: flex; flex-direction: column; gap: 15px; }
.demo-caption { margin-top: 16px; padding: 14px 16px; border-radius: 15px; background: #fff; color: var(--muted); border: 1px solid var(--line); }

.feature-groups { display: grid; gap: 12px; }
.accordion { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; overflow: clip; }
.accordion-button { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px; text-align: left; border: 0; background: transparent; padding: 21px 22px; cursor: pointer; font-weight: 850; font-size: 18px; }
.accordion-button span:first-child { display: flex; align-items: center; gap: 12px; }
.accordion-button .chev { transition: transform .2s ease; }
.accordion-button[aria-expanded="true"] .chev { transform: rotate(180deg); }
.accordion-panel { padding: 0 22px 22px; color: var(--muted); }
.accordion-panel ul { margin: 0; padding-left: 20px; }
.accordion-panel li + li { margin-top: 7px; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
.price-card { position: relative; display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: 26px; padding: 28px; }
.price-card.featured { border: 2px solid var(--primary); box-shadow: 0 24px 60px rgba(109,93,252,.16); transform: translateY(-8px); }
.price-badge { position: absolute; right: 18px; top: 18px; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); padding: 6px 9px; font-size: 12px; font-weight: 900; }
.price-card h3 { font-size: 26px; margin: 0 0 5px; }
.price { font-size: 42px; letter-spacing: -.04em; font-weight: 950; line-height: 1; margin: 18px 0 5px; }
.price-period { color: var(--muted); font-size: 14px; }
.price-card ul { list-style: none; padding: 0; margin: 24px 0; display: grid; gap: 10px; flex: 1; }
.price-card li { display: flex; gap: 9px; }
.price-card li::before { content: '✓'; color: var(--success); font-weight: 900; }
.addon { margin-top: 22px; padding: 24px; background: linear-gradient(135deg, #202532, #343b4d); color: #fff; border-radius: 24px; display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.addon p { color: #c6cbd7; margin: 7px 0 0; }

.notice { display: flex; gap: 13px; padding: 18px; border-radius: 17px; background: #fff7dd; border: 1px solid #f1dfa7; color: #5d512c; }
.notice strong { display: block; }
.notice-icon { flex: 0 0 auto; font-size: 23px; }

.faq { max-width: 860px; margin-inline: auto; display: grid; gap: 10px; }
.cta { background: linear-gradient(135deg, var(--primary), #5545ec 58%, #8d83ff); color: #fff; border-radius: 34px; padding: 52px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; box-shadow: 0 25px 80px rgba(109,93,252,.28); }
.cta h2 { margin: 0 0 10px; font-size: clamp(32px,4vw,51px); line-height: 1.05; }
.cta p { margin: 0; color: #e8e6ff; font-size: 18px; }
.cta .btn { background: #fff; color: var(--primary-dark); }

.site-footer { padding: 42px 0; border-top: 1px solid var(--line); background: var(--surface); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer-title { font-weight: 900; margin-bottom: 12px; }
.footer-links { display: grid; gap: 8px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--primary-dark); }
.footer-bottom { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 13px; }

/* Docs */
.docs-hero { padding: 60px 0 38px; }
.docs-hero h1 { font-size: clamp(39px,6vw,66px); line-height: 1; letter-spacing: -.05em; margin: 0 0 16px; }
.search-box { position: relative; max-width: 720px; margin-top: 25px; }
.search-box input { width: 100%; min-height: 58px; border: 1px solid var(--line); border-radius: 17px; padding: 14px 18px 14px 48px; background: var(--surface); box-shadow: 0 10px 28px rgba(35,41,56,.05); outline: none; }
.search-box input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(109,93,252,.12); }
.search-box svg { position: absolute; left: 17px; top: 18px; width: 22px; color: var(--muted); }
.search-counter { min-height: 20px; color: var(--muted); font-size: 13px; margin-top: 8px; }
.docs-layout { display: grid; grid-template-columns: 250px minmax(0,1fr); gap: 42px; align-items: start; }
.docs-sidebar { position: sticky; top: 94px; max-height: calc(100vh - 120px); overflow: auto; padding: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; }
.docs-sidebar a { display: block; padding: 9px 10px; border-radius: 9px; text-decoration: none; color: var(--muted); font-size: 14px; font-weight: 700; }
.docs-sidebar a:hover, .docs-sidebar a.is-current { background: var(--primary-soft); color: var(--primary-dark); }
.docs-content { display: grid; gap: 22px; }
.doc-card { scroll-margin-top: 100px; background: var(--surface); border: 1px solid var(--line); border-radius: 23px; padding: clamp(24px,4vw,40px); min-width: 0; }
.doc-card h2 { margin: 0 0 15px; font-size: 31px; letter-spacing: -.025em; }
.doc-card h3 { margin: 27px 0 9px; }
.doc-card p, .doc-card li { color: #4f586b; }
.doc-card p, .doc-card li, .doc-card td, .doc-card th, .legal-card p, .card p, .bubble, .file-card { overflow-wrap: anywhere; }
.doc-card code, .command { background: #f0efff; color: #4838cc; border-radius: 7px; padding: 2px 6px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .93em; }
.doc-card table { width: 100%; border-collapse: collapse; margin: 18px 0; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 18px 0; }
.table-scroll table { min-width: 560px; margin: 0; }
.doc-card th, .doc-card td { border: 1px solid var(--line); padding: 10px 12px; vertical-align: top; text-align: left; }
.doc-card th { background: var(--surface-2); }
.quick-links { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin: 22px 0; }
.quick-link { display: block; padding: 17px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); text-decoration: none; font-weight: 800; }
.quick-link span { display: block; color: var(--muted); font-size: 13px; font-weight: 500; margin-top: 4px; }

/* Legal */
.legal-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.legal-card { display: flex; flex-direction: column; padding: 25px; border-radius: 22px; background: var(--surface); border: 1px solid var(--line); }
.legal-card h2 { margin: 0 0 8px; font-size: 23px; }
.legal-card p { color: var(--muted); flex: 1; }
.legal-meta { display: flex; align-items: center; gap: 8px; color: var(--success); font-size: 13px; font-weight: 800; margin-bottom: 10px; }
.legal-card .btn { align-self: flex-start; }

@media (max-width: 980px) {
  .hero-grid, .role-panel, .cta { grid-template-columns: 1fr; }
  .phone-wrap { max-width: 430px; }
  .card-grid { grid-template-columns: repeat(2,1fr); }
  .stat-grid { grid-template-columns: repeat(2,1fr); }
  .demo-wrap { grid-template-columns: 1fr; }
  .demo-nav { grid-template-columns: repeat(3,1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .price-card.featured { transform: none; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { position: sticky; top: 72px; z-index: 20; max-height: none; display: flex; overflow-x: auto; gap: 4px; white-space: nowrap; }
  .docs-sidebar a { flex: 0 0 auto; }
  .quick-links { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 900px) {
  .section { padding: 68px 0; }
  .header-inner { min-height: 64px; }
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: 64px 0 auto; max-height: calc(100dvh - 64px); overflow: auto; overscroll-behavior: contain;
    display: none; flex-direction: column; align-items: stretch; padding: 18px 16px 28px;
    background: var(--surface); border-bottom: 1px solid var(--line); box-shadow: 0 22px 40px rgba(30,36,53,.14);
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 13px; }
  .header-cta { display: none; }
}

@media (max-width: 760px) {
  .hero { padding-top: 48px; }
  .hero-grid { gap: 38px; }
  .hero h1 { font-size: clamp(40px,13vw,60px); }
  .hero-actions .btn { width: 100%; }
  .phone-screen { min-height: 560px; }
  .card-grid, .steps, .metric-row, .footer-grid, .legal-grid { grid-template-columns: 1fr; }
  .role-tabs { padding: 23px 18px; border-radius: 24px; }
  .tab-list { display: grid; grid-template-columns: 1fr; }
  .demo-nav { grid-template-columns: 1fr; }
  .pricing-grid { gap: 12px; }
  .addon { flex-direction: column; align-items: flex-start; }
  .cta { padding: 34px 25px; border-radius: 25px; }
  .cta .btn { width: 100%; }
  .legal-card .btn { width: 100%; }
  .footer-bottom { flex-direction: column; }
  .quick-links { grid-template-columns: 1fr; }
  .doc-card { border-radius: 18px; }
  .doc-card table { display: table; }
  .docs-sidebar { top: 64px; margin-inline: -11px; border-inline: 0; border-radius: 0; }
}

@media (max-width: 480px) {
  .container { width: min(calc(100% - 22px), var(--container)); }
  .section { padding: 54px 0; }
  .section-sm { padding: 42px 0; }
  .brand { font-size: 18px; }
  .brand-mark { width: 34px; height: 34px; border-radius: 11px; }
  .docs-hero h1 { font-size: clamp(34px,12vw,48px); }
  .hero h1 { font-size: clamp(36px,12vw,52px); }
  .stat-grid { grid-template-columns: 1fr; }
  .inline-menu { grid-template-columns: 1fr; }
  .phone-wrap { max-width: min(100%, 360px); }
  .phone { border-radius: 29px; padding: 9px; }
  .phone-screen { border-radius: 22px; }
  .phone-screen { min-height: clamp(420px, 125vw, 500px); }
  .chat { padding: 18px 12px 16px; }
  .bubble { max-width: 95%; font-size: 13px; }
  .menu-chip { font-size: 11px; }
  .section-head p { font-size: 17px; }
  .card { padding: 21px; }
  .doc-card { padding: 21px 16px; }
  .notice { padding: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}