/* ============================================================
   base.css — Reset, Shared Utilities, Keyframes
============================================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  background: var(--space-black);
  color: var(--stellar-white);
  font-family: 'Syne', system-ui, sans-serif;
  line-height: 1.618;
  overflow-x: hidden;
  cursor: none;
}

::selection { background: rgba(244,180,0,0.3); color: var(--gold-bright); }

/* ── Shared Layout ─────────────────────────────────────── */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

/* ── Section Label ─────────────────────────────────────── */
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--solar-gold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.section-label::after {
  content: '';
  flex: 1;
  max-width: 120px;
  height: 1px;
  background: linear-gradient(to right, rgba(244,180,0,0.4), transparent);
}

/* ── Section Heading ───────────────────────────────────── */
.section-heading {
  font-family: 'Syne', sans-serif;
  font-size: clamp(var(--text-xl), 5vw, var(--text-2xl));
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--stellar-white);
}

/* ── Scroll Reveal ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease-silk), transform 0.9s var(--ease-silk);
}
.reveal.visible      { opacity: 1; transform: translateY(0); }
.reveal-delay-1      { transition-delay: 0.1s; }
.reveal-delay-2      { transition-delay: 0.2s; }
.reveal-delay-3      { transition-delay: 0.3s; }
.reveal-delay-4      { transition-delay: 0.4s; }
.reveal-delay-5      { transition-delay: 0.5s; }

/* ── Decorative Shared ─────────────────────────────────── */
.grid-line-h {
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(244,180,0,0.06) 20%, rgba(244,180,0,0.06) 80%, transparent);
  pointer-events: none;
}
.glow-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
}

/* ── Shared Buttons ────────────────────────────────────── */
.btn-primary,
.btn-secondary {
  display: inline-block;
  font-family: 'Syne', sans-serif;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding: var(--space-3) var(--space-5);
  cursor: none;
  position: relative;
  overflow: hidden;
  clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s;
}
.btn-primary::before,
.btn-secondary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s;
}
.btn-primary:hover::before,
.btn-secondary:hover::before { transform: translateX(100%); }

.btn-primary {
  color: var(--space-black);
  background: var(--solar-gold);
  border: none;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(244,180,0,0.3);
}

.btn-secondary {
  color: var(--solar-gold);
  background: transparent;
  border: 1px solid rgba(244,180,0,0.4);
}
.btn-secondary:hover {
  border-color: var(--solar-gold);
  transform: translateY(-3px);
  box-shadow: 0 0 30px rgba(244,180,0,0.15), inset 0 0 30px rgba(244,180,0,0.05);
}

/* ── Keyframes ─────────────────────────────────────────── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50%       { opacity: 0.3; transform: scaleY(0.6); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

/* ── Responsive Helpers ────────────────────────────────── */
@media (max-width: 768px) {
  .section-inner { padding: var(--space-7) var(--space-4); }
}