/*
Theme Name: Ariel Innovations 2026
Theme URI: https://ariel-innovations.ai
Author: Ariel Innovations
Author URI: https://ariel-innovations.ai
Description: Custom theme for Ariel Innovations — Anthropic-inspired warm editorial design.
Version: 2.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: All Rights Reserved
License URI: https://ariel-innovations.ai
Text Domain: ariel-2026
*/

/* ============================================================
   DESIGN SYSTEM — Anthropic-inspired warm editorial
   ============================================================ */
:root {
  --bg: #F5F0E8;
  --bg-warm: #EDE7DB;
  --bg-card: #FFFFFF;
  --bg-dark: #191918;
  --bg-dark-card: #232322;
  --text: #191918;
  --text-secondary: #5C5B57;
  --text-inv: #F5F0E8;
  --text-inv-secondary: #A8A49C;
  --accent: #C4844B;
  --accent-hover: #A86E3A;
  --border: #DDD8CE;
  --border-light: #E8E3DA;
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'DM Sans', -apple-system, sans-serif;
  --max-w: 1200px;
  --nav-h: 64px;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--sans); background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ============================================================
   NAVIGATION — Anthropic-style
   ============================================================ */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(245,240,232,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  height: var(--nav-h);
}
.site-nav.scrolled { box-shadow: 0 1px 8px rgba(0,0,0,0.04); }
.site-nav > .container {
  display: flex; align-items: center; gap: 0;
  height: var(--nav-h);
}
.nav-logo {
  font-family: var(--serif); font-weight: 700; font-size: 1.2rem;
  color: var(--text); text-decoration: none; letter-spacing: -0.02em;
  margin-right: 40px; flex-shrink: 0;
}
.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex; gap: 0; align-items: center;
  flex: 1;
}
.nav-links > li > a {
  display: inline-flex; align-items: center;
  padding: 20px 16px;
  font-size: 0.875rem; font-weight: 500; color: var(--text-secondary);
  transition: color 0.15s;
}
.nav-links > li > a:hover { color: var(--text); }
.nav-links > li > a.nav-highlight {
  background: linear-gradient(135deg, #00e6b4, #00c49a);
  color: #0a0a1a !important; padding: 7px 16px; border-radius: 6px;
  font-weight: 700; font-size: 0.82rem;
  transition: transform 0.2s, box-shadow 0.2s;
  margin-left: 4px;
}
.nav-links > li > a.nav-highlight:hover {
  transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,230,180,0.3);
}

/* Products dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > a::after { content: ' ▾'; font-size: 0.65em; opacity: 0.5; }
.dropdown-menu {
  display: none; position: absolute; top: 100%; left: -12px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; min-width: 200px; padding: 8px 0;
  box-shadow: 0 8px 32px rgba(0,0,0,0.08); z-index: 110;
}
.dropdown-menu a {
  display: block; padding: 9px 20px; font-size: 0.85rem; color: var(--text-secondary);
  transition: background 0.12s, color 0.12s;
}
.dropdown-menu a:hover { background: var(--bg); color: var(--text); }
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.open .dropdown-menu { display: block; }

/* Language nav button — replaces "Try Claude" */
.nav-lang-trigger {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; margin-left: auto;
  background: var(--text); color: var(--text-inv);
  border-radius: 8px; font-size: 0.84rem; font-weight: 600;
  cursor: pointer; transition: background 0.15s;
  border: none; font-family: var(--sans);
}
.nav-lang-trigger:hover { background: #333; }
.nav-lang-trigger svg { opacity: 0.7; }

/* Language mega-dropdown */
.lang-mega {
  display: none; position: absolute; top: var(--nav-h); right: 0; left: 0;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
  z-index: 105;
}
.lang-mega.open { display: block; }
.lang-mega-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 32px 24px;
}
.lang-mega-title {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--text-secondary); margin-bottom: 16px;
}
.lang-mega-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
}
.lang-mega-option {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  font-size: 0.92rem; font-weight: 400; color: var(--text);
  cursor: pointer; border: none; background: none;
  border-radius: 8px; transition: background 0.12s;
  font-family: var(--sans); text-align: left; width: 100%;
}
.lang-mega-option:hover { background: var(--bg); }
.lang-mega-radio {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid var(--border); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.15s;
}
.lang-mega-radio-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: transparent; transition: background 0.15s;
}
.lang-mega-option.active .lang-mega-radio { border-color: var(--accent); }
.lang-mega-option.active .lang-mega-radio-dot { background: var(--accent); }
.lang-mega-option.active { font-weight: 600; }
.lang-native { font-size: 0.82rem; color: var(--text-secondary); margin-left: 4px; }

/* Nav right actions */
.nav-actions {
  display: flex; align-items: center; gap: 12px; margin-left: 16px;
}
.nav-login {
  font-size: 0.84rem; font-weight: 500; color: var(--text-secondary);
  transition: color 0.15s;
}
.nav-login:hover { color: var(--text); }

/* Mobile nav toggle */
.nav-toggle {
  display: none; background: none; border: none;
  cursor: pointer; padding: 8px; flex-direction: column; gap: 5px;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--text); transition: 0.3s;
}

/* ============================================================
   HERO — Anthropic-style centered
   ============================================================ */
.hero-anthropic {
  padding: calc(var(--nav-h) + 80px) 0 60px;
  text-align: center;
}
.hero-anthropic h1 {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.12;
  font-weight: 400;
  letter-spacing: -0.02em;
  max-width: 820px;
  margin: 0 auto 24px;
}
.hero-anthropic h1 a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: color 0.15s;
}
.hero-anthropic h1 a:hover { color: var(--accent-hover); }
.hero-anthropic h1 em { font-style: italic; }
.hero-tagline {
  font-family: var(--sans);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.01em;
  margin-bottom: 16px;
}
.hero-sub {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 640px; margin: 0 auto; line-height: 1.7;
}
.hero-sub-lead {
  font-weight: 600; color: var(--text); margin-top: 20px; margin-bottom: 4px;
}
.hero-pillars {
  list-style: none; max-width: 480px; margin: 12px auto 20px;
  text-align: left; display: flex; flex-direction: column; gap: 8px;
}
.hero-pillars li {
  font-size: 1rem; color: var(--text-secondary); line-height: 1.6;
  padding-left: 20px; position: relative;
}
.hero-pillars li::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}
.hero-pillars li strong { color: var(--text); font-weight: 600; }
.hero-closing {
  font-family: var(--serif); font-style: italic;
  font-size: 1.05rem; color: var(--text);
  max-width: 580px; margin: 0 auto; line-height: 1.7;
}

/* ============================================================
   CREDIBILITY BAR
   ============================================================ */
.cred-bar {
  padding: 24px 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.cred-bar .container {
  display: flex; justify-content: center; gap: 32px; flex-wrap: wrap;
}
.cred-list {
  display: flex; gap: 32px; flex-wrap: wrap; justify-content: center;
}
.cred-list li {
  font-size: 0.78rem; font-weight: 600; color: var(--text-secondary);
  letter-spacing: 0.04em; text-transform: uppercase;
  position: relative;
}
.cred-list li + li::before {
  content: '·'; position: absolute; left: -18px; color: var(--border);
}

/* ============================================================
   FEATURED SECTION — large card
   ============================================================ */
.featured-section { padding: 60px 0; }
.featured-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px;
  text-align: center;
  transition: box-shadow 0.2s;
}
.featured-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.05); }
.featured-card .eyebrow {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--accent); margin-bottom: 16px;
  display: block;
}
.featured-card h2 {
  font-family: var(--serif); font-size: 1.8rem; font-weight: 400;
  margin-bottom: 12px;
}
.featured-card p {
  font-size: 0.95rem; color: var(--text-secondary); max-width: 640px;
  margin: 0 auto 20px; line-height: 1.7; text-align: left;
}
.featured-card .card-link {
  font-size: 0.88rem; font-weight: 600; color: var(--accent);
  display: inline-flex; align-items: center; gap: 6px;
}
.featured-card .card-link:hover { text-decoration: underline; }

/* ============================================================
   LATEST RELEASES — Anthropic-style card grid
   ============================================================ */
.releases-section { padding: 40px 0 80px; }
.releases-section > .container > h2 {
  font-family: var(--serif); font-size: 1.4rem; font-weight: 400;
  margin-bottom: 24px;
}
.releases-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.release-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  display: flex; flex-direction: column;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.release-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.04); border-color: var(--accent); }
.release-card .card-tag {
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--accent); margin-bottom: 12px;
  display: block;
}
.release-card h3 {
  font-family: var(--serif); font-size: 1.15rem; font-weight: 400;
  margin-bottom: 10px; line-height: 1.35;
}
.release-card p {
  font-size: 0.88rem; color: var(--text-secondary); line-height: 1.65;
  flex: 1;
}
.release-card .card-zh {
  font-size: 0.82rem; color: var(--text-secondary); opacity: 0.7;
  margin-top: 8px;
}
.release-card .card-link {
  margin-top: 16px; font-size: 0.84rem; font-weight: 600; color: var(--accent);
}
.release-card .card-link:hover { text-decoration: underline; }

/* ============================================================
   MISSION — full width text
   ============================================================ */
.mission-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-light);
}
.mission-section h2 {
  font-family: var(--serif); font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 400; text-align: center; max-width: 700px;
  margin: 0 auto 16px; line-height: 1.4;
}
.mission-desc {
  font-size: 1.05rem; color: var(--text-secondary); text-align: center;
  max-width: 640px; margin: 0 auto; line-height: 1.8;
}

/* ============================================================
   DARK SECTION — Built with Claude
   ============================================================ */
.dark-section {
  background: var(--bg-dark);
  color: var(--text-inv);
  padding: 80px 0;
}
.dark-section .section-header { margin-bottom: 40px; }
.dark-section .eyebrow {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--accent); margin-bottom: 12px;
  display: block;
}
.dark-section h2 {
  font-family: var(--serif); font-size: 1.8rem; font-weight: 400;
}
.dark-section .section-title-zh {
  font-size: 0.88rem; color: var(--text-inv-secondary); margin-top: 4px;
}
.claude-split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.claude-text p { font-size: 0.95rem; color: var(--text-inv-secondary); line-height: 1.8; }
.claude-boxes { display: flex; flex-direction: column; gap: 16px; }
.claude-box {
  background: var(--bg-dark-card); border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px; padding: 24px;
}
.claude-box h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 8px; }
.claude-box p { font-size: 0.88rem; color: var(--text-inv-secondary); line-height: 1.6; }

/* ============================================================
   TEAM TEASER
   ============================================================ */
.team-teaser { padding: 80px 0; }
.team-teaser .section-header { margin-bottom: 20px; }
.team-teaser .eyebrow {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--accent); margin-bottom: 12px;
  display: block;
}
.team-teaser h2 {
  font-family: var(--serif); font-size: 1.8rem; font-weight: 400;
  margin-bottom: 16px;
}
.team-teaser > .container > p {
  font-size: 0.95rem; color: var(--text-secondary); line-height: 1.8;
  max-width: 680px; margin-bottom: 24px;
}
.btn { display: inline-flex; align-items: center; gap: 6px; font-family: var(--sans); font-weight: 600; transition: all 0.15s; }
.btn-primary {
  background: var(--text); color: var(--text-inv); padding: 12px 24px;
  border-radius: 8px; font-size: 0.88rem;
}
.btn-primary:hover { background: #333; }
.btn-secondary {
  background: transparent; color: var(--text); padding: 12px 24px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 0.88rem;
}
.btn-secondary:hover { border-color: var(--text); }

/* ============================================================
   ENTITY SUMMARY
   ============================================================ */
.entity-summary-section { padding: 60px 0; }
.entity-summary-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 16px; padding: 40px;
}
.entity-summary-card h2 {
  font-family: var(--serif); font-size: 1.3rem; font-weight: 400;
  margin-bottom: 16px;
}
.entity-summary-card p {
  font-size: 0.92rem; color: var(--text-secondary); line-height: 1.8;
  margin-bottom: 8px;
}
.entity-summary-card p:last-child { margin-bottom: 0; }
.entity-summary-card strong { color: var(--text); font-weight: 600; }

/* ============================================================
   FAQ SECTION
   ============================================================ */
.faq-section { padding: 60px 0 80px; }
.faq-section .section-header { margin-bottom: 24px; }
.faq-section .eyebrow {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--accent); margin-bottom: 12px;
  display: block;
}
.faq-section h2 {
  font-family: var(--serif); font-size: 1.4rem; font-weight: 400;
  margin-bottom: 4px;
}
.faq-section .section-desc {
  font-size: 0.88rem; color: var(--text-secondary);
}
.faq-list { max-width: 760px; }
.faq-item { border-bottom: 1px solid var(--border-light); padding: 20px 0; }
.faq-item:last-child { border-bottom: none; }
.faq-item h3 { font-family: var(--serif); font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.faq-item p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.8; }

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section { padding: 60px 0 80px; }
.cta-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 16px; padding: 48px; text-align: center;
}
.cta-card h2 {
  font-family: var(--serif); font-size: 1.6rem; font-weight: 400;
  margin-bottom: 12px;
}
.cta-card p { font-size: 0.92rem; color: var(--text-secondary); margin-bottom: 24px; }

/* ============================================================
   FOOTER — Anthropic-style dark
   ============================================================ */
.site-footer {
  background: var(--bg-dark); color: var(--text-inv);
  padding: 60px 0 40px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p { font-size: 0.85rem; color: var(--text-inv-secondary); line-height: 1.6; margin-top: 12px; }
.footer-grid > div h4 {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--text-inv-secondary);
  margin-bottom: 16px;
}
.footer-grid > div ul { display: flex; flex-direction: column; gap: 8px; }
.footer-grid > div a {
  font-size: 0.85rem; color: var(--text-inv-secondary);
  transition: color 0.15s;
}
.footer-grid > div a:hover { color: var(--text-inv); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 8px;
}
.footer-bottom p { font-size: 0.78rem; color: var(--text-inv-secondary); }
.footer-legal-links { display: flex; gap: 8px; align-items: center; }
.footer-legal-links a { font-size: 0.78rem; color: var(--text-inv-secondary); }
.footer-legal-links a:hover { color: var(--text-inv); }
.footer-legal-links span { color: rgba(255,255,255,0.2); }

/* ============================================================
   HERO STANDARD (subpages)
   ============================================================ */
.hero-standard {
  padding: calc(var(--nav-h) + 60px) 0 48px;
}
.hero-standard.bg-alt { background: var(--bg-warm); }
.hero-standard .eyebrow, .hero-standard p.eyebrow {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--accent); margin-bottom: 12px;
}
.hero-standard h1 {
  font-family: var(--serif); font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 400; margin-bottom: 8px; line-height: 1.2;
}
.hero-standard .title-zh, .hero-standard .hero-sub-zh,
.section-title-zh, .card-zh, .title-zh {
  font-size: 0.88rem; color: var(--text-secondary); opacity: 0.7;
}
.hero-standard .hero-desc {
  font-size: 0.95rem; color: var(--text-secondary); max-width: 560px;
  line-height: 1.7; margin-top: 12px;
}
.hero-ctas { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

/* ============================================================
   PRODUCTS GRID (subpage re-use)
   ============================================================ */
.products-grid { padding: 60px 0; }
.products-grid .section-header { margin-bottom: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.product-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.product-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.04); border-color: var(--accent); }
.product-card .card-tag { font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 10px; display: block; }
.product-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.product-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.65; }
.product-card .card-link { margin-top: 12px; display: inline-block; font-size: 0.84rem; font-weight: 600; color: var(--accent); }

/* ABOUT: team, cert, etc */
.team-section { padding: 60px 0; }
.team-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.team-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 28px; }
.team-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.team-role { font-size: 0.82rem; color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.team-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }
.team-prev { font-size: 0.82rem; color: var(--text-secondary); opacity: 0.7; margin-top: 12px; }
.section-alt { padding: 60px 0; background: var(--bg-warm); }
.section-alt .section-header { margin-bottom: 24px; }
.section-alt h2 { font-family: var(--serif); font-size: 1.4rem; font-weight: 400; }
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.cert-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.cert-item .card-tag { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 8px; display: block; }
.cert-item h3 { font-size: 0.92rem; font-weight: 700; margin-bottom: 4px; }
.cert-item p { font-size: 0.82rem; color: var(--text-secondary); }
.claude-intro { font-size: 0.95rem; color: var(--text-inv-secondary); line-height: 1.7; margin-bottom: 24px; max-width: 600px; }

/* ============================================================
   SUPERTITLE — Beyond Theater (light boxes)
   ============================================================ */
.beyond-section {
  padding: 80px 0;
  background: #f0f0f0;
  color: var(--text);
}
.beyond-intro {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 2;
  margin-bottom: 32px;
}
.beyond-boxes {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.beyond-box {
  background: #e4e4e4;
  border-radius: 10px;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.beyond-box h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.beyond-box p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 2;
  max-width: 560px;
}

/* ============================================================
   SUPERTITLE PAGE — deployment details & spec list spacing
   ============================================================ */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}
.detail-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 28px;
  margin-bottom: 10px;
}
.detail-content h3:first-child { margin-top: 0; }
.detail-content p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 8px;
}
.highlight-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.highlight-box h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.highlight-box p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 2;
}
.spec-list {
  list-style: none;
  padding: 0;
  max-width: 680px;
}
.spec-list li {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.92rem;
  line-height: 2;
}
.spec-list li:last-child { border-bottom: none; }
.spec-list li strong {
  min-width: 160px;
  color: var(--text);
}
.spec-list li span {
  color: var(--text-secondary);
  text-align: right;
}
.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 2;
  margin-bottom: 32px;
}
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  margin-top: 24px;
}
.video-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}
.faq-q { font-weight: 700; margin-bottom: 8px; line-height: 2; }
.faq-a { font-size: 0.92rem; color: var(--text-secondary); line-height: 2; }

@media (max-width: 768px) {
  .detail-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* ============================================================
   CONTACT PAGE — Zendesk-style minimal form
   ============================================================ */
.contact-zen {
  padding: calc(var(--nav-h) + 60px) 0 80px;
  background: var(--bg-card);
}
.contact-zen-inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Eyebrow */
.contact-zen-eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

/* Heading */
.contact-zen-h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text);
}

/* Description */
.contact-zen-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
}

/* Form */
.contact-zen-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Row — side by side fields */
.zen-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* Individual field */
.zen-field {
  margin-bottom: 28px;
}
.zen-field label {
  display: block;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.zen-field input,
.zen-field select,
.zen-field textarea {
  width: 100%;
  padding: 14px 0;
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--text);
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border);
  border-radius: 0;
  outline: none;
  transition: border-color 0.2s;
}
.zen-field input:focus,
.zen-field select:focus,
.zen-field textarea:focus {
  border-bottom-color: var(--text);
}
.zen-field input::placeholder,
.zen-field textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.4;
}
.zen-field textarea {
  resize: vertical;
  min-height: 100px;
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}
.zen-field textarea:focus {
  border-color: var(--text);
}
.zen-field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='14' height='9' viewBox='0 0 14 9' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L7 7L13 1' stroke='%23191918' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  padding-right: 28px;
  cursor: pointer;
}
.zen-field .error-msg {
  display: none;
  font-size: 0.78rem;
  color: #c0392b;
  margin-top: 6px;
}
.zen-field.error .error-msg { display: block; }
.zen-field.error input,
.zen-field.error select,
.zen-field.error textarea {
  border-color: #c0392b;
}

/* Consent checkbox */
.zen-consent {
  margin-bottom: 20px;
}
.zen-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.zen-checkbox input[type="checkbox"] {
  width: 18px; height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--text);
  cursor: pointer;
}

/* Privacy text */
.zen-privacy {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}
.zen-privacy a {
  color: var(--text);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.zen-privacy a:hover {
  color: var(--accent);
}

/* Submit button — bold, full width, accent green like Zendesk */
.zen-submit {
  display: block;
  width: 100%;
  padding: 18px 24px;
  background: var(--text);
  color: var(--text-inv);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  letter-spacing: 0.01em;
}
.zen-submit:hover {
  background: #333;
  transform: translateY(-1px);
}
.zen-submit:active {
  transform: translateY(0);
}

/* Contact info footer — minimal row */
.zen-contact-info {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.zen-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.zen-info-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}
.zen-info-item a {
  font-size: 0.88rem;
  color: var(--text);
  transition: color 0.15s;
}
.zen-info-item a:hover {
  color: var(--accent);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .releases-grid, .grid-3 { grid-template-columns: 1fr 1fr; }
  .lang-mega-grid { grid-template-columns: repeat(2, 1fr); }
  .zen-row { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-lang-trigger { margin-left: auto; }
  .releases-grid, .grid-3, .team-grid, .cert-grid { grid-template-columns: 1fr; }
  .claude-split { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .lang-mega-grid { grid-template-columns: 1fr; }
  .hero-anthropic h1 { font-size: 2rem; }
  .zen-row { grid-template-columns: 1fr; }
  .zen-contact-info { flex-direction: column; gap: 20px; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .cred-list { flex-direction: column; align-items: center; gap: 8px; }
  .cred-list li + li::before { display: none; }
}