/* ======================
   FLUIDFIT OS — THEME
   ====================== */

:root {
  --bg: #0d0d12;
  --surface: #14141e;
  --surface-2: #1a1a28;
  --fg: #f5f0e8;
  --fg-muted: #9b9aa8;
  --teal: #00e5c8;
  --teal-dim: rgba(0, 229, 200, 0.12);
  --teal-glow: rgba(0, 229, 200, 0.06);
  --gold: #f5c542;
  --gold-dim: rgba(245, 197, 66, 0.12);
  --border: rgba(255,255,255,0.08);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ——— NAVIGATION ——— */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(13,13,18,0.92);
  backdrop-filter: blur(16px);
  z-index: 100;
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-logo {
  width: 32px; height: 32px;
  background: var(--teal);
  color: var(--bg);
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
}
.nav-name {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.02em;
}
.nav-os { color: var(--teal); }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--fg); }

/* ——— HERO ——— */
.hero {
  min-height: calc(100vh - 73px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  padding: 80px 48px 80px;
  position: relative;
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,229,200,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,200,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero-teal-glow {
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,229,200,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--teal-dim);
  border: 1px solid rgba(0,229,200,0.2);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--teal);
  margin-bottom: 28px;
  font-weight: 500;
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--teal);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(42px, 5.5vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero-accent { color: var(--teal); font-style: normal; }
.hero-lede {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 440px;
  line-height: 1.7;
  margin-bottom: 48px;
}
.hero-stats { display: flex; align-items: center; gap: 24px; }
.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--teal);
  display: block;
  line-height: 1.2;
}
.stat-label { font-size: 12px; color: var(--fg-muted); display: block; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* ——— HERO VISUAL ——— */
.hero-visual { position: relative; z-index: 1; display: flex; justify-content: center; }
.device-card {
  width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0,229,200,0.05),
    0 40px 80px rgba(0,0,0,0.5),
    0 0 80px rgba(0,229,200,0.04);
}
.device-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.device-dots { display: flex; gap: 6px; }
.device-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
}
.device-label { font-size: 12px; color: var(--fg-muted); font-weight: 500; }
.device-screen { display: flex; height: 320px; }
.dash-sidebar {
  width: 48px;
  background: var(--surface-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 0;
  gap: 8px;
}
.dash-logo {
  width: 28px; height: 28px;
  background: var(--teal);
  color: var(--bg);
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
  margin-bottom: 16px;
}
.dash-nav-item {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-muted);
  border-radius: 6px;
  cursor: pointer;
}
.dash-nav-item.active {
  background: var(--teal-dim);
  color: var(--teal);
}
.dash-main { flex: 1; padding: 16px; overflow: hidden; }
.dash-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.dash-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 15px;
}
.dash-count {
  font-size: 11px;
  color: var(--teal);
  background: var(--teal-dim);
  padding: 2px 8px;
  border-radius: 100px;
}
.cert-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 8px;
}
.cert-card-main { border-color: rgba(0,229,200,0.2); background: rgba(0,229,200,0.04); }
.cert-badge-icon {
  width: 32px; height: 32px;
  background: var(--teal);
  color: var(--bg);
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
  flex-shrink: 0;
}
.cert-icon-dim { background: rgba(0,229,200,0.3); }
.cert-icon-gold { background: var(--gold); }
.cert-info { flex: 1; min-width: 0; }
.cert-name { font-size: 13px; font-weight: 600; margin-bottom: 2px; }
.cert-meta { font-size: 11px; color: var(--fg-muted); }
.cert-badge {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 100px;
  background: rgba(255,255,255,0.08);
  color: var(--fg-muted);
  white-space: nowrap;
}
.cert-badge-live { background: rgba(0,229,200,0.2); color: var(--teal); }
.cert-badge-soon { background: var(--gold-dim); color: var(--gold); }

/* Floating badges */
.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.badge-revenue { bottom: -20px; right: -24px; }
.badge-trainers { top: 30px; left: -24px; }
.badge-icon {
  width: 36px; height: 36px;
  background: var(--teal-dim);
  color: var(--teal);
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.badge-value {
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  font-weight: 700;
}
.badge-sub { font-size: 11px; color: var(--fg-muted); }

/* ——— MANIFESTO ——— */
.manifesto { padding: 100px 48px; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.manifesto-inner { max-width: 720px; margin: 0 auto; text-align: center; }
.section-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--teal); font-weight: 600; display: block; margin-bottom: 24px; }
.manifesto-quote {
  font-family: 'Syne', sans-serif;
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.manifesto-quote em { color: var(--teal); font-style: normal; }
.manifesto-body { font-size: 17px; color: var(--fg-muted); line-height: 1.7; margin-bottom: 32px; }
.manifesto-tags { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.tag {
  font-size: 12px;
  padding: 6px 14px;
  background: var(--teal-dim);
  border: 1px solid rgba(0,229,200,0.15);
  border-radius: 100px;
  color: var(--teal);
}

/* ——— FEATURES ——— */
.features { padding: 100px 48px; }
.features-header { text-align: center; margin-bottom: 64px; }
.features-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 3.5vw, 46px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}
.feature-card {
  background: var(--surface);
  padding: 40px;
  transition: background 0.3s;
}
.feature-card:hover { background: var(--surface-2); }
.feature-icon {
  width: 52px; height: 52px;
  background: var(--teal-dim);
  border: 1px solid rgba(0,229,200,0.15);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--teal);
  margin-bottom: 24px;
}
.feature-title {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.feature-desc { font-size: 15px; color: var(--fg-muted); line-height: 1.65; }

/* ——— CERTIFICATION ——— */
.certification { padding: 100px 48px; background: var(--surface); border-top: 1px solid var(--border); }
.certification-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; max-width: 1200px; margin: 0 auto; }
.certification-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(32px, 3.5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 16px 0 20px;
}
.certification-desc { font-size: 16px; color: var(--fg-muted); line-height: 1.7; margin-bottom: 40px; }
.tier-list { display: flex; flex-direction: column; gap: 16px; }
.tier {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
}
.tier-name {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.tier-name-pro { color: var(--teal); }
.pro-badge {
  font-size: 12px;
  background: var(--teal-dim);
  color: var(--teal);
  padding: 2px 8px;
  border-radius: 100px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
}
.tier-meta { font-size: 13px; color: var(--fg-muted); }
.tier-tier {
  display: flex;
  justify-content: center;
  color: var(--fg-muted);
}

/* Pyramid visual */
.certification-visual { display: flex; flex-direction: column; align-items: center; gap: 32px; }
.pyramid { width: 240px; }
.pyramid-top {
  width: 100px;
  margin: 0 auto;
  background: var(--teal);
  color: var(--bg);
  border-radius: 10px 10px 4px 4px;
  padding: 20px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pyramid-base {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px 4px 10px 10px;
  padding: 20px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 2px;
}
.pyramid-label { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 13px; }
.pyramid-sub { font-size: 12px; opacity: 0.7; }
.cert-equation {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--fg-muted);
}
.eq-arrow { color: var(--teal); font-size: 20px; }
.eq-result {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  color: var(--teal);
}

/* ——— PROOF ——— */
.proof { padding: 100px 48px; }
.proof-header { text-align: center; margin-bottom: 64px; }
.proof-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 3.5vw, 46px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 64px;
}
.proof-card {
  background: var(--surface);
  padding: 36px 28px;
  text-align: center;
}
.proof-num {
  font-family: 'Syne', sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: var(--teal);
  margin-bottom: 10px;
  line-height: 1;
}
.proof-desc { font-size: 14px; color: var(--fg-muted); line-height: 1.55; }
.proof-quote {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}
.proof-quote blockquote {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
  font-style: italic;
}

/* ——— CLOSING ——— */
.closing { padding: 120px 48px; background: var(--surface); border-top: 1px solid var(--border); }
.closing-inner { max-width: 760px; margin: 0 auto; text-align: center; }
.closing-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}
.closing-body { font-size: 18px; color: var(--fg-muted); line-height: 1.7; margin-bottom: 48px; }
.closing-philosophy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Syne', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--teal);
  font-style: italic;
}
.philosophy-mark { font-size: 40px; line-height: 1; opacity: 0.5; }

/* ——— FOOTER ——— */
.footer {
  padding: 48px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.footer-brand { display: flex; align-items: center; gap: 8px; }
.footer-logo {
  width: 28px; height: 28px;
  background: var(--teal);
  color: var(--bg);
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
}
.footer-name { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 15px; }
.footer-os { color: var(--teal); }
.footer-tagline { font-size: 14px; color: var(--fg-muted); }
.footer-meta { font-size: 12px; color: rgba(255,255,255,0.25); }

/* ——— RESPONSIVE ——— */
@media (max-width: 900px) {
  .nav { padding: 16px 24px; }
  .hero { grid-template-columns: 1fr; padding: 60px 24px; }
  .hero-visual { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .certification-inner { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-card:last-child { grid-column: 1 / -1; }
  .manifesto, .features, .certification, .proof, .closing { padding: 60px 24px; }
}
@media (max-width: 600px) {
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .proof-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}