/* ============================================================
   BASE — Reset, Variables, Body, Canvas Layers, Keyframes
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --purple-1: hsl(270, 80%, 65%);
  --purple-2: hsl(270, 90%, 50%);
  --purple-3: hsl(280, 100%, 40%);
  --purple-glow: hsl(270, 100%, 60%);
  --bg: hsl(0, 0%, 4%);
  --bg-card: hsla(270, 20%, 8%, 0.25);
  --bg-card-border: hsla(270, 40%, 50%, 0.18);
  --text-primary: hsl(0, 0%, 96%);
  --text-secondary: hsl(0, 0%, 65%);
  --text-muted: hsl(270, 15%, 50%);
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 999px;
  --font-main: 'Space Grotesk', 'Inter', sans-serif;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

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

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-main);
  min-height: 100vh;
  overflow-x: hidden;
  cursor: none;
  user-select: none;
  -webkit-user-select: none;
}

/* Canvas Layers */
#stars-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

#blob-canvas {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

/* Sections Base */
.section {
  position: relative;
  z-index: 10;
  padding: 7rem 2rem;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--purple-1);
  margin-bottom: 0.75rem;
  position: relative;
  padding-left: 2rem;
}
.section-label::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  width: 1.25rem; height: 1.5px;
  background: var(--purple-1);
  transform: translateY(-50%);
}

.section-header { margin-bottom: 3.5rem; }

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
}
.accent { color: var(--purple-1); }

.section-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: hsla(270, 50%, 40%, 0.5);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--purple-1); }

/* Keyframes */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes blobPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

@keyframes visualizerBounce {
  0% { transform: scaleY(0.2); }
  100% { transform: scaleY(1.4); }
}