/* ============================================================
   BASE RESET & TYPOGRAPHY
   ============================================================ */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  background:
    radial-gradient(circle at 10% -12%, rgba(86,242,255,0.18), transparent 28%),
    radial-gradient(circle at 92% 4%, rgba(216,92,255,0.13), transparent 30%),
    linear-gradient(135deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 62px),
    linear-gradient(45deg, rgba(86,242,255,0.035) 0 1px, transparent 1px 74px),
    var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-section.active {
  flex: 1;
}


body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.014) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.7), transparent 72%);
  opacity: 0.35;
  z-index: -1;
}

/* In light mode: replace neon body gradient with plain bg color and hide dark grid */
[data-theme="light"] body {
  background: var(--color-bg);
}
[data-theme="light"] body::before { opacity: 0; }

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-accent-hover); }

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

table { border-collapse: collapse; width: 100%; }
input, select { font: inherit; color: inherit; }

/* Mono / number utilities */
.mono {
  font-family: var(--font-mono);
  font-size: 0.875em;
  letter-spacing: -0.01em;
}
.hash-link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent);
  letter-spacing: -0.01em;
}
.hash-link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}
.number {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* Skeleton shimmer loading */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-border-subtle) 25%,
    var(--color-card-hover) 50%,
    var(--color-border-subtle) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
  color: transparent !important;
  user-select: none;
  pointer-events: none;
}
.skeleton * { visibility: hidden; }
.skeleton-line {
  height: 1em;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-faint); }