/* ============================================
   BASE STYLES — Reset, Typography, Utilities
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  min-height: 100dvh;
}

img, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

ul, ol {
  list-style: none;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 0.25rem;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 0.25rem;
}

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

/* ── Typography ── */
.font-display {
  font-family: var(--font-display);
}

.font-body {
  font-family: var(--font-body);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--text-primary);
}

.text-gradient {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-secondary {
  color: var(--text-secondary);
}

.text-muted {
  color: var(--text-muted);
}

.text-accent {
  color: var(--text-accent);
}

.label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Layout ── */
.container {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section {
  position: relative;
  padding: var(--section-gap) 0;
}

.section-full {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding-inline: var(--container-padding);
}

/* ── Glass Card ── */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border: 0.0625rem solid var(--bg-glass-border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.glass-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow-sm);
}

/* ── Glow Ring ── */
.glow-ring {
  position: relative;
}

.glow-ring::before {
  content: '';
  position: absolute;
  inset: -0.1875rem;
  border-radius: inherit;
  background: var(--gradient-hero);
  opacity: 0.5;
  filter: blur(0.5rem);
  z-index: -1;
  transition: opacity var(--duration-normal) var(--ease-out-expo);
}

.glow-ring:hover::before {
  opacity: 0.8;
}

/* ── Divider ── */
.divider {
  width: 2.5rem;
  height: 0.125rem;
  background: var(--gradient-hero);
  border-radius: 0.0625rem;
  margin: var(--space-6) 0;
}

/* ── Tag / Chip ── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-glass);
  border: 0.0625rem solid var(--border-subtle);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ── Section Label ── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-glow);
  margin-bottom: var(--space-4);
}

.section-label::before {
  content: '';
  display: block;
  width: 0.75rem;
  height: 0.0625rem;
  background: var(--accent-glow);
}

/* ── Section Title ── */
.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-6);
  line-height: var(--leading-snug);
}

/* ── Noise Overlay ── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}