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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}

/* ── Ambient background ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 10% 20%, rgba(99,102,241,0.04) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 85% 70%, rgba(34,211,238,0.03) 0%, transparent 70%);
}

/* ── Dot grid pattern ── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 80%);
}

.hidden {
  display: none !important;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  transition: background 0.2s;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.12); }

/* ── Selection ── */
::selection {
  background: rgba(99,102,241,0.3);
  color: var(--text);
}

/* ── Focus visible ── */
:focus-visible {
  outline: 2px solid var(--accent-bold);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ── Fade-in animation utility ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

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

@keyframes pulse-glow {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px currentColor; }
  50% { opacity: 0.5; box-shadow: 0 0 4px currentColor; }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes float-subtle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* ── Section reveal animation ── */
.section-reveal {
  animation: fadeUp 0.4s var(--ease-out) both;
}

.section-reveal > * {
  animation: fadeUp 0.35s var(--ease-out) both;
}

.section-reveal > *:nth-child(1) { animation-delay: 0.05s; }
.section-reveal > *:nth-child(2) { animation-delay: 0.1s; }
.section-reveal > *:nth-child(3) { animation-delay: 0.15s; }
.section-reveal > *:nth-child(4) { animation-delay: 0.2s; }
.section-reveal > *:nth-child(5) { animation-delay: 0.25s; }
.section-reveal > *:nth-child(6) { animation-delay: 0.3s; }

/* ── Skeleton loading ── */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.8s ease-in-out infinite;
  border-radius: var(--radius-xs);
}

.skeleton-text {
  height: 14px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.skeleton-text.short { width: 40%; }
.skeleton-text.medium { width: 65%; }
.skeleton-text.long { width: 90%; }

.skeleton-card {
  height: 120px;
  border-radius: var(--radius);
}

.skeleton-row {
  height: 48px;
  border-radius: var(--radius-xs);
  margin-bottom: 4px;
}

/* ── Noise texture overlay ── */
.noise-overlay::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.015;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 128px;
}