/* ============================================================
   VideoRayan EN — shared design system for documentation pages
   (developers / docs / api / agents) — matches the landing design
   ============================================================ */
:root {
  --deep-navy: #06152F;
  --dark-navy: #0A2148;
  --card-navy: #0E2B5C;
  --primary-blue: #1765F5;
  --primary-blue-hover: #1253cc;
  --secondary-blue: #4B8DFF;
  --white: #FFFFFF;
  --light-bg: #F5F8FE;
  --main-text: #10213F;
  --secondary-text: #62738F;
  --borders: #DCE5F3;
  --border-dark: #1E3765;
  --success-green: #24C78A;
  --danger-red: #E53E3E;
  --amber: #F6AD55;
  --code-bg: #030C1C;
  --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--main-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
pre, code, kbd { font-family: var(--font-mono); }

.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(6, 21, 47, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(220, 229, 243, 0.08);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand-logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: var(--white); letter-spacing: -0.02em; }
.brand-icon {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  border-radius: 8px; display: flex; align-items: center; justify-content: center; color: white;
}
.nav-links { display: flex; align-items: center; gap: 26px; list-style: none; }
.nav-links a { color: #A0B2CD; font-size: 13.5px; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-actions { display: flex; gap: 10px; align-items: center; }
.mobile-menu-toggle { display: none; background: none; border: none; color: var(--white); cursor: pointer; }
#mobileMenu {
  display: none; position: fixed; top: 64px; left: 0; right: 0;
  background: var(--dark-navy); border-bottom: 1px solid var(--border-dark);
  padding: 20px 24px; flex-direction: column; gap: 12px; z-index: 99;
}
#mobileMenu.active { display: flex; }
#mobileMenu a { color: #CFE0F7; font-size: 15px; font-weight: 500; padding: 6px 0; }
#mobileMenu a:hover { color: var(--white); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 500; font-size: 13.5px; padding: 9px 18px; border-radius: 10px;
  cursor: pointer; transition: all 0.2s ease; white-space: nowrap;
  border: 1px solid transparent; gap: 8px; font-family: var(--font-sans);
}
.btn-primary { background: var(--primary-blue); color: var(--white); box-shadow: 0 4px 14px rgba(23, 101, 245, 0.35); }
.btn-primary:hover { background: var(--primary-blue-hover); transform: translateY(-1px); }
.btn-secondary-dark { background: rgba(255, 255, 255, 0.08); color: var(--white); border-color: rgba(255, 255, 255, 0.16); }
.btn-secondary-dark:hover { background: rgba(255, 255, 255, 0.14); border-color: rgba(255, 255, 255, 0.3); }
.btn-secondary-light { background: var(--white); color: var(--main-text); border-color: var(--borders); }
.btn-secondary-light:hover { background: #eef3fc; border-color: #cbd8ec; }
.btn-ghost-light { background: transparent; color: #CFE0F7; border-color: rgba(255,255,255,0.22); }
.btn-ghost-light:hover { background: rgba(255,255,255,0.08); color: var(--white); }

/* ---------- Hero band (interior pages) ---------- */
.page-hero {
  background: var(--deep-navy);
  color: var(--white);
  padding: 72px 0 64px 0;
  border-bottom: 1px solid var(--border-dark);
  background-image: radial-gradient(circle 600px at 50% -10%, rgba(23, 101, 245, 0.22), transparent 70%);
}
.breadcrumbs { display: flex; align-items: center; gap: 8px; font-size: 12px; color: #6C82A3; margin-bottom: 22px; }
.breadcrumbs a:hover { color: var(--white); }
.breadcrumbs .sep { color: #3D5680; }
.eyebrow {
  display: inline-block; font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; font-weight: 700; color: var(--secondary-blue); margin-bottom: 12px;
}
.page-hero h1 { font-size: 44px; line-height: 1.14; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 16px; }
.page-hero .lede { font-size: 17.5px; color: #9DB0CC; max-width: 720px; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 80px 0; }
.section.alt { background: var(--light-bg); border-bottom: 1px solid var(--borders); }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-head p { font-size: 15.5px; color: var(--secondary-text); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.card {
  background: var(--white); border: 1px solid var(--borders); border-radius: 14px;
  padding: 26px 24px; transition: all 0.22s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(16, 33, 63, 0.07); border-color: #CAD8EE; }
.card h3 { font-size: 17px; font-weight: 600; margin: 14px 0 8px; letter-spacing: -0.01em; }
.card p { font-size: 13.5px; color: var(--secondary-text); }
.icon-box {
  width: 42px; height: 42px; border-radius: 10px; background: #EDF3FE; color: var(--primary-blue);
  display: flex; align-items: center; justify-content: center;
}
.card.dark { background: var(--dark-navy); border-color: var(--border-dark); }
.card.dark h3 { color: var(--white); }
.card.dark p { color: #9DB0CC; }
.card.dark .icon-box { background: rgba(23,101,245,0.2); border: 1px solid rgba(75,141,255,0.3); color: var(--secondary-blue); }

/* ---------- Code blocks ---------- */
.code-card { background: var(--code-bg); border: 1px solid var(--border-dark); border-radius: 14px; overflow: hidden; box-shadow: 0 16px 40px rgba(0,0,0,0.35); }
.code-card-header {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: #051226; border-bottom: 1px solid var(--border-dark);
  padding: 10px 16px;
}
.code-card-title { font-family: var(--font-mono); font-size: 11.5px; color: #7E93B5; }
.code-copy {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12);
  color: #A0B2CD; font-size: 11px; font-weight: 600; padding: 4px 10px; border-radius: 7px;
  cursor: pointer; font-family: var(--font-sans);
}
.code-copy:hover { background: rgba(255,255,255,0.13); color: var(--white); }
pre.code {
  padding: 18px 20px; overflow-x: auto;
  font-size: 12.8px; line-height: 1.7; color: #99AFCE;
  tab-size: 2;
}
pre.code .k { color: #FF7B72; }        /* keyword */
pre.code .f { color: #79C0FF; }        /* function */
pre.code .s { color: #A5D6FF; }        /* string */
pre.code .n { color: #79C0FF; }        /* number */
pre.code .c { color: #5B7195; }        /* comment */
pre.code .v { color: #FFA657; }        /* variable-ish / header emphasis */
pre.code .ok { color: #24C78A; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 4px; }
.tab-btn {
  background: transparent; border: 1px solid transparent; border-radius: 7px;
  color: #7E93B5; font-size: 11.5px; font-weight: 600; padding: 5px 12px; cursor: pointer;
  font-family: var(--font-sans);
}
.tab-btn:hover { color: var(--white); }
.tab-btn.active { background: rgba(23,101,245,0.25); border-color: rgba(75,141,255,0.4); color: var(--white); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--borders); border-radius: 12px; background: var(--white); }
table.ref { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.ref th {
  text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--secondary-text); font-weight: 700; background: var(--light-bg);
  padding: 12px 16px; border-bottom: 1px solid var(--borders); white-space: nowrap;
}
table.ref td { padding: 12px 16px; border-bottom: 1px solid #EBF1F9; vertical-align: top; }
table.ref tr:last-child td { border-bottom: none; }
table.ref code { font-size: 12px; background: #F0F4FA; padding: 2px 7px; border-radius: 5px; color: #1253cc; white-space: nowrap; }

/* ---------- Endpoint blocks (API reference) ---------- */
.endpoint {
  border: 1px solid var(--borders); border-radius: 14px; background: var(--white);
  margin-bottom: 26px; overflow: hidden; scroll-margin-top: 96px;
}
.endpoint-head {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 16px 20px; background: #F8FAFF; border-bottom: 1px solid var(--borders);
}
.endpoint-head code.path { font-family: var(--font-mono); font-size: 13.5px; font-weight: 600; color: var(--main-text); word-break: break-all; }
.endpoint-body { padding: 20px; }
.endpoint-body h4 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--secondary-text); margin: 20px 0 10px; }
.endpoint-body h4:first-child { margin-top: 0; }
.endpoint-body p { font-size: 14px; color: #3D5170; margin-bottom: 10px; }

.method {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 11px; font-weight: 700; letter-spacing: 0.04em;
  padding: 4px 10px; border-radius: 7px; flex-shrink: 0;
}
.method.get { background: #E5F8F0; color: #0E8A5F; border: 1px solid #B8ECD9; }
.method.post { background: #E8F0FE; color: #1253cc; border: 1px solid #C6DBFB; }
.method.delete { background: #FDECEC; color: #C53030; border: 1px solid #F6CFCF; }

.status-chip {
  display: inline-block; font-family: var(--font-mono); font-size: 11.5px; font-weight: 600;
  padding: 2px 9px; border-radius: 6px; background: #F0F4FA; color: #3D5170;
  border: 1px solid var(--borders);
}
.status-chip.ok { background: #E5F8F0; color: #0E8A5F; border-color: #B8ECD9; }
.status-chip.warn { background: #FFF5E6; color: #B7791F; border-color: #F4DEB8; }
.status-chip.err { background: #FDECEC; color: #C53030; border-color: #F6CFCF; }

/* ---------- Callouts ---------- */
.callout {
  border: 1px solid var(--borders); border-left: 4px solid var(--primary-blue);
  background: #F8FAFF; border-radius: 10px; padding: 14px 18px;
  font-size: 13.5px; color: #3D5170; margin: 14px 0;
}
.callout.green { border-left-color: var(--success-green); background: #F2FBF7; }
.callout.amber { border-left-color: var(--amber); background: #FFF9F0; }
.callout.red { border-left-color: var(--danger-red); background: #FFF6F6; }
.callout b { color: var(--main-text); }

/* ---------- Docs layout (sidebar + article) ---------- */
.docs-layout { display: grid; grid-template-columns: 250px 1fr; gap: 48px; padding: 56px 0 96px 0; }
.docs-sidebar { position: sticky; top: 92px; align-self: start; max-height: calc(100vh - 120px); overflow-y: auto; }
.docs-sidebar .side-title { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--secondary-text); margin: 20px 0 8px; }
.docs-sidebar .side-title:first-child { margin-top: 0; }
.docs-sidebar a.side-link {
  display: block; font-size: 13.5px; color: #4A5D7D; padding: 5px 10px;
  border-left: 2px solid var(--borders); margin-left: 2px;
}
.docs-sidebar a.side-link:hover { color: var(--primary-blue); border-left-color: var(--primary-blue); background: #F5F8FE; }
.docs-article { min-width: 0; }
.docs-article h2 {
  font-size: 26px; font-weight: 700; letter-spacing: -0.02em;
  margin: 52px 0 14px; padding-top: 20px; border-top: 1px solid var(--borders);
  scroll-margin-top: 96px;
}
.docs-article h2:first-of-type { border-top: none; padding-top: 0; margin-top: 0; }
.docs-article h3 { font-size: 18px; font-weight: 650; margin: 30px 0 10px; scroll-margin-top: 96px; }
.docs-article p { font-size: 14.5px; color: #33507A; margin-bottom: 12px; max-width: 76ch; }
.docs-article ul, .docs-article ol { margin: 0 0 14px 22px; font-size: 14.5px; color: #33507A; }
.docs-article li { margin-bottom: 6px; }
.docs-article code.inline {
  font-size: 12.5px; background: #F0F4FA; border: 1px solid #E2EAF6;
  padding: 1px 6px; border-radius: 5px; color: #1253cc;
}

/* ---------- Agents page ---------- */
.terminal-card { background: var(--code-bg); border: 1px solid var(--border-dark); border-radius: 14px; padding: 20px 22px; }
.resource-row {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  background: var(--white); border: 1px solid var(--borders); border-radius: 12px;
  padding: 14px 18px; margin-bottom: 10px; transition: border-color .2s;
}
.resource-row:hover { border-color: var(--secondary-blue); }
.resource-row .rr-name { font-family: var(--font-mono); font-size: 13px; font-weight: 600; color: var(--main-text); }
.resource-row .rr-desc { font-size: 12.5px; color: var(--secondary-text); }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 99px;
}
.badge.blue { background: rgba(23,101,245,0.1); color: var(--primary-blue); border: 1px solid #C6DBFB; }
.badge.green { background: rgba(36,199,138,0.1); color: #0E8A5F; border: 1px solid #B8ECD9; }
.badge.dark { background: rgba(10,33,72,0.08); color: #33507A; border: 1px solid var(--borders); }

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid var(--borders); border-radius: 12px; background: var(--white); margin-bottom: 12px; overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 17px 20px; font-size: 15px; font-weight: 600; color: var(--main-text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .chev { flex-shrink: 0; color: var(--secondary-blue); transition: transform .2s; }
.faq-item[open] summary .chev { transform: rotate(180deg); }
.faq-item .faq-a { padding: 0 20px 18px 20px; font-size: 14px; color: var(--secondary-text); max-width: 80ch; }

/* ---------- CTA band ---------- */
.cta-band {
  background: radial-gradient(circle at 50% 0%, #0E2B5C 0%, var(--deep-navy) 75%);
  color: var(--white); padding: 84px 0; text-align: center;
}
.cta-band h2 { font-size: 36px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; }
.cta-band p { font-size: 16.5px; color: #A3B6D1; max-width: 620px; margin: 0 auto 30px auto; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer { background: #040E20; color: #798CA8; font-size: 13.5px; padding: 64px 0 32px 0; border-top: 1px solid #13223A; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 44px; margin-bottom: 48px; }
.footer-brand-title { color: var(--white); font-size: 17px; font-weight: 700; margin-bottom: 12px; }
.footer-tagline { line-height: 1.65; max-width: 280px; margin-bottom: 16px; }
.footer-col-title { color: var(--white); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.footer-links a:hover { color: var(--white); }
.footer-bottom {
  padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 12.5px;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .docs-layout { grid-template-columns: 1fr; gap: 24px; }
  .docs-sidebar { position: static; max-height: none; border: 1px solid var(--borders); border-radius: 12px; padding: 16px 18px; background: var(--light-bg); }
  .page-hero h1 { font-size: 34px; }
}
@media (max-width: 768px) {
  .nav-links, .nav-actions { display: none; }
  .mobile-menu-toggle { display: block; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .page-hero { padding: 52px 0 48px 0; }
  .page-hero h1 { font-size: 29px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .endpoint-head { align-items: flex-start; flex-direction: column; gap: 8px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}