/* ═══════════════════════════════════════════════════
   NEXAURO — Apple-Level Global Base
   ═══════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  background: #000;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

img, iframe { max-width: 100%; }

/* ─── Section: Full viewport, generous spacing ─── */
section {
  padding: var(--section-pad) 0;
  position: relative;
  overflow: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Apple Typography: Big, Bold, Minimal ─── */
.eyebrow {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
}

h1, h2, h3 { font-family: var(--font-heading); }

h1 {
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -3px;
}

h2 {
  font-size: clamp(36px, 5vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
}

h3 {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -1px;
}

/* ─── Section subtitle ─── */
.section-sub {
  color: var(--text-dim);
  font-size: 20px;
  line-height: 1.7;
  max-width: 600px;
  margin: 24px auto 0;
  font-weight: 400;
}

/* ─── Gradient text ─── */
.grad-gold {
  background: linear-gradient(135deg, #D4AF37 0%, #F4E190 50%, #D4AF37 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.grad-teal {
  background: linear-gradient(135deg, #00B4D8 0%, #7DEAFF 50%, #00B4D8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Button System: Premium, Minimal ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--gold);
  color: #000;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  height: 56px;
  padding: 0 36px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.5s var(--ease-out);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: -50%; left: -75%;
  width: 50%; height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transform: skewX(-25deg);
  transition: left 0.7s var(--ease-out);
}

.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(212,175,55,0.4); }
.btn-primary:hover::before { left: 150%; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--text);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16px;
  height: 56px;
  padding: 0 36px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.4s var(--ease-out);
  white-space: nowrap;
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(212,175,55,0.1);
}

/* ─── Glass Card ─── */
.glass-card {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(40px) saturate(1.5);
  -webkit-backdrop-filter: blur(40px) saturate(1.5);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}

/* ─── Scroll Reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Accessibility ─── */
.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; }
.hp-field { position: absolute; left: -9999px; top: -9999px; opacity: 0; height: 0; width: 0; overflow: hidden; pointer-events: none; }

/* ─── Section Divider Line ─── */
.section-divider {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--teal));
  margin: 0 auto 20px;
  border-radius: 2px;
}