/* ============================================================
   DADsync — Dharmanagar AI & Data Hub
   Design system (rebuilt static site, v2)
   Primary: #0b5ed7 · Pill CTAs · Rounded cards · Light+Dark
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  --primary: #0b5ed7;
  --primary-foreground: #ffffff;
  --primary-soft: #e8f0fe;
  --secondary: #e4e4e7;
  --secondary-foreground: #09090b;
  --background: #ffffff;
  --foreground: #09090b;
  --muted: #f4f4f5;
  --muted-foreground: #63636b;
  --border: #e4e4e7;
  --card: #ffffff;
  --card-foreground: #09090b;
  --green: #16a34a;
  --green-soft: #dcfce7;
  --red: #dc2626;
  --amber: #f59e0b;
  --radius: 1rem;
  --radius-lg: 1.5rem;
  --shadow-sm: 0 1px 2px rgba(9, 9, 11, .06);
  --shadow-md: 0 4px 16px rgba(9, 9, 11, .08);
  --shadow-lg: 0 12px 32px rgba(9, 9, 11, .12);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", "Noto Sans", Arial, sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji";
  --header-h: 72px;
}

.dark {
  --primary: #4d8dff;
  --primary-soft: rgba(77, 141, 255, .14);
  --primary-foreground: #ffffff;
  --secondary: #27272a;
  --secondary-foreground: #fafafa;
  --background: #09090b;
  --foreground: #fafafa;
  --muted: #18181b;
  --muted-foreground: #a1a1aa;
  --border: #27272a;
  --card: #0f0f12;
  --card-foreground: #fafafa;
  --green-soft: rgba(22, 163, 74, .18);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .5);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, .5);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, .6);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  font-size: 16px;
  transition: background .3s ease, color .3s ease;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, h5 { line-height: 1.2; letter-spacing: -.02em; font-weight: 700; }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.section { padding: 84px 0; }
.section-alt { background: var(--muted); }
.section-soft { background: linear-gradient(180deg, var(--primary-soft) 0%, transparent 100%); }
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); margin-bottom: 12px; }
.section-head p { color: var(--muted-foreground); font-size: 1.08rem; }
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-soft); color: var(--primary);
  border-radius: 999px; padding: 6px 14px; font-size: .82rem;
  font-weight: 600; letter-spacing: .02em; margin-bottom: 18px;
}
.kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; padding: 14px 28px; font-weight: 600; font-size: 1rem;
  transition: all .2s ease; border: 1px solid transparent; white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn-primary { background: var(--primary); color: var(--primary-foreground); }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(11, 94, 215, .3); }
.btn-secondary { background: var(--secondary); color: var(--secondary-foreground); }
.btn-secondary:hover { background: var(--border); }
.btn-outline { border-color: var(--border); color: var(--foreground); background: var(--card); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: #f1f5f9; }
.btn-lg { padding: 16px 34px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--header-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--background) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, box-shadow .3s ease, background .3s ease;
}
.site-header.scrolled { border-bottom-color: var(--border); box-shadow: 0 1px 12px rgba(0, 0, 0, .05); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 10px; background: var(--primary);
  display: grid; place-items: center; color: #fff; flex-shrink: 0;
}
.brand-mark svg { width: 22px; height: 22px; }
.brand-name { line-height: 1.1; }
.brand-name b { display: block; font-size: 1.18rem; font-weight: 800; letter-spacing: -.02em; }
.brand-name small { font-size: .6rem; color: var(--muted-foreground); letter-spacing: .01em; }

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a {
  font-size: .9rem; font-weight: 500; color: var(--foreground);
  padding: 4px 2px; position: relative; transition: color .2s;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px; border-radius: 2px; background: var(--primary);
}

.header-actions { display: flex; align-items: center; gap: 12px; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; color: var(--foreground);
  border: 1px solid var(--border); transition: all .2s;
}
.icon-btn:hover { background: var(--muted); }
.icon-btn svg { width: 18px; height: 18px; }
.btn-nav { padding: 10px 20px; font-size: .88rem; }

/* Mobile menu */
.menu-toggle { display: none; }
.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 45;
  background: var(--background); padding: calc(var(--header-h) + 24px) 28px 40px;
  flex-direction: column; gap: 10px; overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1.15rem; font-weight: 600; color: var(--foreground);
  padding: 12px 4px; border-bottom: 1px solid var(--border);
}
.mobile-menu a.active { color: var(--primary); }
.mobile-menu .btn { margin-top: 20px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; padding: calc(var(--header-h) + 88px) 0 120px;
  overflow: hidden; background: linear-gradient(180deg, var(--primary-soft) 0%, transparent 70%);
}
.hero::before {
  content: ""; position: absolute; top: 20%; right: -120px;
  width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 10%, transparent), transparent 65%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; text-align: center; max-width: 880px; }
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem); font-weight: 800;
  letter-spacing: -.03em; line-height: 1.1; margin-bottom: 22px;
}
.hero h1 .grad {
  background: linear-gradient(90deg, var(--primary), #4d8dff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { color: var(--muted-foreground); font-size: clamp(1.05rem, 2vw, 1.25rem); max-width: 640px; margin: 0 auto 36px; }
.hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 26px;
  background: var(--primary-soft); color: var(--primary);
  padding: 8px 18px; border-radius: 999px; font-size: .86rem; font-weight: 600;
}
.hero-badge .live { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); animation: pulse 2s infinite; }

.hero-compact { padding: calc(var(--header-h) + 72px) 0 64px; text-align: center; }
.hero-compact h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 14px; }
.hero-compact p { color: var(--muted-foreground); font-size: 1.15rem; max-width: 680px; margin: 0 auto; }
.hero-image { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-lg); margin-top: 56px; position: relative; }
.hero-image img { width: 100%; height: 420px; object-fit: cover; }
.hero-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, color-mix(in srgb, var(--background) 80%, transparent)); }

/* ---------- Stat cards (VISIBLE BY DEFAULT — fix #3) ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px 24px; text-align: center;
  transition: border-color .25s, box-shadow .25s, transform .25s;
  box-shadow: var(--shadow-sm);
}
.stat-card:hover { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.stat-icon {
  width: 56px; height: 56px; border-radius: 14px; margin: 0 auto 18px;
  background: var(--primary-soft); color: var(--primary);
  display: grid; place-items: center; transition: transform .25s;
}
.stat-card:hover .stat-icon { transform: scale(1.1); }
.stat-icon svg { width: 26px; height: 26px; }
.stat-card .num { font-size: 2.1rem; font-weight: 800; letter-spacing: -.02em; margin-bottom: 4px; }
.stat-card .lbl { color: var(--muted-foreground); font-size: .95rem; }

/* ---------- Feature cards ---------- */
.feature-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px 28px; transition: all .25s ease; position: relative; overflow: hidden;
}
.feature-card:hover { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.feature-icon {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 22px;
  background: var(--primary-soft); color: var(--primary);
  display: grid; place-items: center;
}
.feature-icon svg { width: 24px; height: 24px; }
.feature-card h3 { font-size: 1.22rem; margin-bottom: 10px; }
.feature-card p { color: var(--muted-foreground); font-size: .95rem; }

/* Split feature (Why DADsync) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); margin-bottom: 18px; }
.split .lead { color: var(--muted-foreground); font-size: 1.1rem; margin-bottom: 34px; }
.check-item { display: flex; gap: 16px; margin-bottom: 28px; align-items: flex-start; }
.check-icon {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0; margin-top: 2px;
  background: var(--primary-soft); color: var(--primary);
  display: grid; place-items: center;
}
.check-icon svg { width: 20px; height: 20px; }
.check-item h3 { font-size: 1.08rem; margin-bottom: 6px; }
.check-item p { color: var(--muted-foreground); font-size: .94rem; }
.split-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.split-media img { width: 100%; height: 460px; object-fit: cover; }

/* ---------- Highlight rows (investment highlights — populated) ---------- */
.hl-card {
  display: flex; gap: 22px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 28px; transition: all .25s;
}
.hl-card:hover { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.hl-icon { color: var(--primary); flex-shrink: 0; margin-top: 4px; }
.hl-icon svg { width: 26px; height: 26px; }
.hl-card h3 { font-size: 1.16rem; margin-bottom: 8px; }
.hl-card p { color: var(--muted-foreground); font-size: .95rem; }

/* ---------- Blue CTA band ---------- */
.cta-band {
  background: var(--primary); color: #fff; border-radius: var(--radius-lg);
  padding: 56px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center;
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; top: -80px; right: -60px; width: 320px; height: 320px;
  border-radius: 50%; background: rgba(255, 255, 255, .1); pointer-events: none;
}
.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 14px; }
.cta-band p { opacity: .85; font-size: 1.05rem; max-width: 520px; }
.cta-band .btn-wrap { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
.fin-row {
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, .22); padding: 13px 0; color: #fff;
}
.fin-row:last-child { border-bottom: none; }
.fin-row b { font-weight: 700; }

/* ---------- Timeline (roadmap) ---------- */
.timeline { position: relative; max-width: 760px; margin: 0 auto; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 11px; top: 8px; bottom: 8px;
  width: 2px; background: var(--border);
}
.tl-item { position: relative; margin-bottom: 34px; }
.tl-dot {
  position: absolute; left: -34px; top: 6px; width: 24px; height: 24px;
  border-radius: 50%; background: var(--background); border: 2px solid var(--primary);
  display: grid; place-items: center;
}
.tl-dot.current { background: var(--primary); }
.tl-dot svg { width: 11px; height: 11px; color: #fff; }
.tl-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 28px; transition: all .25s;
}
.tl-card:hover { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); box-shadow: var(--shadow-md); }
.tl-phase { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--primary); margin-bottom: 8px; }
.tl-card h3 { font-size: 1.18rem; margin-bottom: 8px; }
.tl-card p { color: var(--muted-foreground); font-size: .95rem; }

/* ---------- Jobs ---------- */
.job-card {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 28px; transition: all .25s; flex-wrap: wrap;
}
.job-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.job-meta { display: flex; align-items: center; gap: 14px; }
.job-icon {
  width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0;
  background: var(--primary-soft); color: var(--primary); display: grid; place-items: center;
}
.job-icon svg { width: 22px; height: 22px; }
.job-card h3 { font-size: 1.1rem; margin-bottom: 5px; }
.job-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  font-size: .74rem; font-weight: 600; padding: 4px 10px; border-radius: 999px;
  background: var(--muted); color: var(--muted-foreground);
}
.tag-blue { background: var(--primary-soft); color: var(--primary); }

/* ---------- Forms ---------- */
.form-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-md);
}
.form-card h3 { font-size: 1.5rem; margin-bottom: 26px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 16px; border-radius: 12px;
  background: var(--background); border: 1px solid var(--border);
  transition: border-color .2s, box-shadow .2s; outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-status { display: none; text-align: center; padding: 40px 12px; }
.form-status.show { display: block; }
.form-status .ok-icon {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 18px;
  background: var(--green-soft); color: var(--green);
  display: grid; place-items: center;
}
.form-status .ok-icon svg { width: 30px; height: 30px; }
.form-status h4 { font-size: 1.4rem; margin-bottom: 8px; }
.form-status p { color: var(--muted-foreground); margin-bottom: 22px; }
.form-error { color: var(--red); font-size: .88rem; margin-top: 10px; display: none; }
.form-error.show { display: block; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* ---------- Contact info ---------- */
.contact-item { display: flex; gap: 16px; margin-bottom: 28px; }
.contact-icon {
  width: 46px; height: 46px; border-radius: 50%; flex-shrink: 0;
  background: var(--primary-soft); color: var(--primary);
  display: grid; place-items: center;
}
.contact-icon svg { width: 20px; height: 20px; }
.contact-item h4 { font-size: 1.02rem; margin-bottom: 4px; }
.contact-item p { color: var(--muted-foreground); font-size: .94rem; }
.contact-item a { color: var(--primary); font-weight: 500; }
.map-frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); height: 300px; background: var(--muted); }
.map-frame iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ---------- Download buttons ---------- */
.dl-row { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.dl-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 24px; font-weight: 600; color: var(--foreground);
  transition: all .22s;
}
.dl-btn:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.dl-btn svg { width: 18px; height: 18px; }

/* ---------- Social ---------- */
.social-row { display: flex; gap: 12px; flex-wrap: wrap; }
.social-btn {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--border); color: var(--muted-foreground); transition: all .2s;
}
.social-btn:hover { color: #fff; background: var(--primary); border-color: var(--primary); transform: translateY(-2px); }
.social-btn svg { width: 17px; height: 17px; }

/* ---------- Proof / metric band ---------- */
.metric-band { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.metric {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; text-align: center;
}
.metric .v { font-size: 2rem; font-weight: 800; color: var(--primary); letter-spacing: -.02em; }
.metric .k { font-weight: 600; margin: 4px 0 6px; }
.metric p { color: var(--muted-foreground); font-size: .88rem; }

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid var(--border); border-radius: 14px; margin-bottom: 14px; overflow: hidden; background: var(--card); }
.faq-q {
  width: 100%; text-align: left; padding: 20px 24px; font-weight: 600; font-size: 1.02rem;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-q .chev { transition: transform .25s; flex-shrink: 0; color: var(--muted-foreground); width: 20px; height: 20px; }
.faq-item.open .faq-q .chev { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a-inner { padding: 0 24px 20px; color: var(--muted-foreground); font-size: .96rem; }
.faq-item.open .faq-a { max-height: 320px; }

/* ---------- Legal ---------- */
.legal h2 { font-size: 1.5rem; margin: 38px 0 14px; }
.legal h2:first-child { margin-top: 0; }
.legal p, .legal li { color: var(--muted-foreground); margin-bottom: 12px; font-size: .98rem; }
.legal ul { list-style: disc; padding-left: 22px; }
.legal li { margin-bottom: 8px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--muted); border-top: 1px solid var(--border); padding: 64px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand p { color: var(--muted-foreground); font-size: .9rem; margin-top: 14px; max-width: 280px; }
.footer-col h4 { font-size: .95rem; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: var(--muted-foreground); font-size: .9rem; transition: color .2s; }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid var(--border); padding: 22px 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; font-size: .82rem; color: var(--muted-foreground);
}
.footer-bottom .legal-links { display: flex; gap: 18px; }
.footer-bottom a { color: var(--muted-foreground); }
.footer-bottom a:hover { color: var(--primary); }

/* ---------- Scroll reveal (enhancement only — content visible by default, fix #3) ---------- */
.reveal { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s ease; }
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 1; }
  .reveal.pre { opacity: 1; }
}
html.js .reveal.pre { opacity: 1; transform: none; }
/* When JS is active we still keep content visible; animation only adds a subtle rise */
html.js .reveal.in-view { opacity: 1; transform: none; }
.reveal { will-change: opacity, transform; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(120%);
  background: var(--foreground); color: var(--background);
  padding: 14px 24px; border-radius: 12px; font-weight: 600; font-size: .92rem;
  box-shadow: var(--shadow-lg); z-index: 100; transition: transform .3s ease; max-width: 90vw; text-align: center;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ---------- 404 ---------- */
.error-page { min-height: 70vh; display: grid; place-items: center; text-align: center; padding: calc(var(--header-h) + 60px) 20px 60px; }
.error-page .code { font-size: clamp(4rem, 12vw, 7rem); font-weight: 800; color: var(--primary); line-height: 1; }
.error-page h1 { font-size: 1.8rem; margin: 14px 0 10px; }
.error-page p { color: var(--muted-foreground); margin-bottom: 28px; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .main-nav { display: none; }
  .menu-toggle { display: grid; }
  .header-actions .btn-nav { display: none; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .cta-band { grid-template-columns: 1fr; padding: 40px; }
  .cta-band .btn-wrap { justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .metric-band { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero { padding: calc(var(--header-h) + 56px) 0 80px; }
  .hero-image img { height: 260px; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .split-media img { height: 280px; }
  .brand-name small { display: none; }
  .metric { padding: 24px 16px; }
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-8 { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mb-6 { margin-bottom: 24px; }
.muted { color: var(--muted-foreground); }
.small { font-size: .85rem; }
.gap-16 { gap: 16px; }

/* ============================================================
   DADsync v8 — premium enterprise enhancement layer
   AI Infrastructure & Cloud Computing · blue/white/silver
   ============================================================ */

/* ---------- Accessibility (WCAG) ---------- */
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--primary); color: #fff; padding: 12px 20px;
  border-radius: 0 0 12px 0; font-weight: 600; font-size: .9rem;
}
.skip-link:focus { left: 0; }
.section-head h2, .split h2, .hero h1, .hero-compact h1 { text-wrap: balance; }
.form-status[role="status"] { outline: none; }

/* ---------- Reduced motion (WCAG 2.3.3) ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .kicker .dot, .hero-badge .live { animation: none; }
}

/* ---------- Header: collapse nav earlier (8 links + CTA) ---------- */
@media (max-width: 1200px) {
  .main-nav { display: none; }
  .menu-toggle { display: grid; }
  .header-actions .btn-nav { display: none; }
}

/* ---------- Hero polish ---------- */
.hero { background:
  radial-gradient(1200px 520px at 50% -10%, color-mix(in srgb, var(--primary) 14%, transparent), transparent 70%),
  linear-gradient(180deg, var(--primary-soft) 0%, transparent 72%); }
.hero::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 220px; pointer-events: none;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--background) 85%, transparent));
}
.hero .container { max-width: 920px; }
.hero-ctas .btn { min-width: 200px; }

/* ---------- Enterprise solution cards (index Solutions) ---------- */
.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sol-card {
  display: flex; flex-direction: column; gap: 14px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 28px; position: relative; overflow: hidden;
  transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}
.sol-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), color-mix(in srgb, var(--primary) 35%, transparent));
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.sol-card:hover::before { transform: scaleX(1); }
.sol-card:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.sol-card h3 { font-size: 1.18rem; }
.sol-card p { color: var(--muted-foreground); font-size: .93rem; flex: 1; }
.sol-card .sol-link { font-weight: 600; font-size: .9rem; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.sol-card .sol-link svg { width: 16px; height: 16px; transition: transform .2s ease; }
.sol-card:hover .sol-link svg { transform: translateX(3px); }
.sol-tag {
  align-self: flex-start; font-size: .7rem; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--primary); background: var(--primary-soft);
  padding: 4px 10px; border-radius: 999px;
}

/* ---------- HPC section (services) ---------- */
.hpc-band {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 8%, var(--card)), var(--card));
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 56px; position: relative; overflow: hidden;
}
.hpc-band h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 14px; }
.hpc-band p { color: var(--muted-foreground); font-size: 1rem; }
.hpc-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hpc-feat {
  display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: .94rem;
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px;
}
.hpc-feat svg { width: 20px; height: 20px; color: var(--primary); flex-shrink: 0; }

/* ---------- News & blog ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}
.news-card:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.news-card .news-thumb { height: 180px; overflow: hidden; position: relative; background: var(--primary-soft); }
.news-card .news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-card:hover .news-thumb img { transform: scale(1.04); }
.news-card .news-body { display: flex; flex-direction: column; gap: 10px; padding: 24px 24px 26px; flex: 1; }
.news-card h3 { font-size: 1.08rem; line-height: 1.35; }
.news-card h3 a { color: var(--foreground); }
.news-card h3 a:hover { color: var(--primary); }
.news-card .news-excerpt { color: var(--muted-foreground); font-size: .9rem; flex: 1; }
.news-meta { display: flex; align-items: center; gap: 10px; font-size: .78rem; color: var(--muted-foreground); font-weight: 600; }
.news-date { display: inline-flex; align-items: center; gap: 6px; }
.news-date svg { width: 13px; height: 13px; }
.news-cat {
  font-size: .7rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: var(--primary); background: var(--primary-soft); padding: 3px 10px; border-radius: 999px;
}
.news-read { font-weight: 600; font-size: .88rem; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.news-read svg { width: 15px; height: 15px; transition: transform .2s ease; }
.news-card:hover .news-read svg { transform: translateX(3px); }
.news-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Breadcrumbs (legal/SEO) ---------- */
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: .84rem; color: var(--muted-foreground); margin: 0 0 26px; }
.breadcrumb a { color: var(--muted-foreground); font-weight: 500; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb svg { width: 13px; height: 13px; opacity: .6; }
.breadcrumb .crumb-current { color: var(--foreground); font-weight: 600; }

/* ---------- Feature-list (enterprise detail rows) ---------- */
.feature-list { display: grid; gap: 12px; margin-top: 22px; }
.feature-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--muted-foreground); font-size: .94rem; }
.feature-list li svg { width: 18px; height: 18px; color: var(--primary); flex-shrink: 0; margin-top: 2px; }

/* ---------- v8 responsive refinements ---------- */
@media (max-width: 1024px) {
  .sol-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .hpc-band { grid-template-columns: 1fr; padding: 40px; }
}
@media (max-width: 640px) {
  .sol-grid, .news-grid, .hpc-feats { grid-template-columns: 1fr; }
  .hpc-band { padding: 28px 22px; }
  .news-card .news-thumb { height: 160px; }
  .cta-band { padding: 32px 24px; }
  .dl-btn { width: 100%; justify-content: center; }
}

/* ---------- Screen-reader only (a11y) ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- v9 Connection page ---------- */

/* Concept-only disclaimer banner */
.disclaimer-banner {
  background: color-mix(in srgb, var(--amber) 12%, var(--background));
  border-bottom: 1px solid color-mix(in srgb, var(--amber) 35%, var(--border));
}
.disclaimer-banner .container {
  display: flex; gap: 12px; align-items: flex-start; padding-top: 16px; padding-bottom: 16px;
}
.disclaimer-banner svg { width: 20px; height: 20px; color: var(--amber); flex-shrink: 0; margin-top: 2px; }
.disclaimer-banner p { font-size: .88rem; color: var(--muted-foreground); line-height: 1.55; }
.disclaimer-banner b { color: var(--foreground); }

/* Vision statement card */
.vision-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 44px 48px; display: flex; gap: 24px; align-items: flex-start;
  box-shadow: var(--shadow-md); max-width: 900px; margin: 0 auto;
}
.vision-card svg { width: 44px; height: 44px; color: var(--primary); flex-shrink: 0; margin-top: 4px; }
.vision-card p { font-size: 1.28rem; line-height: 1.6; font-weight: 500; color: var(--foreground); }
@media (max-width: 640px) { .vision-card { flex-direction: column; padding: 28px 24px; } .vision-card p { font-size: 1.08rem; } }

/* ===== Connectivity flow diagram ===== */
.conn-flow {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md); padding: 40px 32px; display: flex; flex-direction: column; gap: 26px;
  align-items: center;
}
.conn-row { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 12px; width: 100%; }
.conn-row--chain { gap: 10px; }
.conn-arrow {
  width: 34px; height: 2px; background: var(--primary); position: relative; opacity: .85; flex-shrink: 0;
}
.conn-arrow::after {
  content: ""; position: absolute; right: 0; top: -4px;
  border: 5px solid transparent; border-left: 8px solid var(--primary); border-top-width: 4px; border-bottom-width: 4px;
}
.conn-arrow--down { width: 2px; height: 30px; }
.conn-arrow--down::after { left: -4px; top: auto; bottom: 0; border: 5px solid transparent; border-top: 8px solid var(--primary); border-left-width: 4px; border-right-width: 4px; }
.conn-node {
  background: var(--primary-soft); color: var(--foreground); border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border));
  border-radius: 14px; padding: 12px 18px; font-weight: 600; font-size: .95rem;
  display: flex; flex-direction: column; align-items: center; gap: 2px; text-align: center; min-width: 120px;
}
.conn-node small { font-weight: 400; font-size: .72rem; color: var(--muted-foreground); }
.conn-node-tag {
  font-size: .62rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  background: var(--primary); color: #fff; border-radius: 999px; padding: 2px 9px; margin-bottom: 4px;
}
.conn-node-tag--amber { background: var(--amber); }
.conn-node-tag--green { background: var(--green); }
.conn-node--small { min-width: 108px; padding: 10px 14px; font-size: .86rem; }
.conn-node--branch { border-color: color-mix(in srgb, var(--amber) 55%, var(--border)); background: color-mix(in srgb, var(--amber) 10%, var(--background)); }
.conn-node--hub {
  background: var(--primary); color: #fff; border-color: var(--primary); padding: 18px 30px;
  flex-direction: row; gap: 12px; font-size: 1.05rem; box-shadow: var(--shadow-md);
}
.conn-node--hub svg { width: 22px; height: 22px; flex-shrink: 0; }
.conn-node--hub small { color: rgba(255,255,255,.82); }
.conn-node--collab { background: var(--green-soft); border-color: color-mix(in srgb, var(--green) 35%, var(--border)); min-width: 108px; }
.conn-gateway { display: flex; flex-direction: column; align-items: center; gap: 6px; width: 100%; }
.conn-branch { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.conn-branch-in { display: flex; align-items: center; gap: 10px; }
.conn-row--hub { gap: 14px; }
.conn-fan { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 12px; width: 100%; }
.conn-collab { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 14px; border-top: 1px dashed var(--border); padding-top: 24px; }
.conn-collab-label { font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-foreground); }
.conn-collab-row { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 12px; }
.conn-caption { margin-top: 20px; font-size: .84rem; }
@media (max-width: 640px) { .conn-flow { padding: 24px 16px; } .conn-arrow { width: 22px; } }

/* Objective / benefit grids — tighter cards */
.obj-grid { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) { .obj-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .obj-grid { grid-template-columns: 1fr; } }
.benefit-grid .feature-card { text-align: left; }
.benefit-grid .feature-icon { margin-bottom: 14px; }

/* Principle list two-column */
@media (max-width: 640px) { .principle-grid { grid-template-columns: 1fr; } }

/* ===== Regions table ===== */
.region-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); background: var(--card); }
.region-table { width: 100%; border-collapse: collapse; min-width: 480px; }
.region-table th, .region-table td { padding: 16px 22px; text-align: left; border-bottom: 1px solid var(--border); font-size: .96rem; }
.region-table thead th {
  background: var(--primary); color: #fff; font-weight: 600; font-size: .82rem;
  letter-spacing: .06em; text-transform: uppercase;
}
.region-table tbody tr:last-child th, .region-table tbody tr:last-child td { border-bottom: none; }
.region-table tbody tr:nth-child(even) { background: var(--muted); }
.region-table tbody th { font-weight: 600; color: var(--foreground); width: 42%; }
.region-table tbody td { color: var(--muted-foreground); }
.region-note { margin-top: 18px; font-size: .84rem; color: var(--muted-foreground); font-style: italic; }

/* Investor note box */
.note-box {
  display: flex; gap: 20px; align-items: flex-start;
  background: var(--primary-soft); border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border));
  border-left: 4px solid var(--primary); border-radius: var(--radius); padding: 32px 36px; max-width: 860px; margin: 0 auto;
}
.note-box > svg { width: 26px; height: 26px; color: var(--primary); flex-shrink: 0; margin-top: 3px; }
.note-box .tag { margin-bottom: 12px; display: inline-flex; }
.note-box p { color: var(--muted-foreground); line-height: 1.6; font-size: .98rem; }
@media (max-width: 640px) { .note-box { flex-direction: column; padding: 24px 20px; } }
/* ---------- Defensive responsive safeguard (v12) ---------- */
img, svg, iframe, video, canvas { max-width: 100%; height: auto; }
table { max-width: 100%; }
.region-table, pre, code, .conn-flow { overflow-x: auto; }