/* =========================================================
   Global Styles — Giorgi Samukashvili Portfolio
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');
@import './tokens.css';

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

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

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

/* --- Layout Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 3vw, var(--space-10));
}

/* Full-bleed containers — span the whole viewport, only padding from edges */
.container--full {
  max-width: none;
}

/* Narrow centered container — standalone, same centering behavior as .container */
.container--narrow {
  width: 100%;
  max-width: var(--max-width-narrow);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 3vw, var(--space-10));
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
}

h1 { font-size: clamp(var(--size-4xl), 6vw, var(--size-7xl)); font-weight: var(--weight-bold); }
h2 { font-size: clamp(var(--size-3xl), 4vw, var(--size-5xl)); }
h3 { font-size: clamp(var(--size-xl), 2.5vw, var(--size-3xl)); }
h4 { font-size: var(--size-xl); }
h5 { font-size: var(--size-lg); }
h6 { font-size: var(--size-base); }

p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 65ch;
}

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

ul, ol {
  list-style: none;
}

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

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

/* --- Section Spacing --- */
.section {
  padding-block: var(--section-gap);
}

.section--lg {
  padding-block: calc(var(--section-gap) * 1.5);
}

/* --- Section Label (eyebrow) --- */
.section-label {
  display: inline-block;
  font-size: var(--size-xs);
  font-family: var(--font-heading);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

/* --- Divider --- */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border-subtle);
  border: none;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: var(--size-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-base);
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), opacity var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background: var(--text-primary);
  color: var(--bg-primary);
  border: 1px solid var(--text-primary);
}

.btn--primary:hover {
  background: rgba(242, 242, 242, 0.88);
  border-color: rgba(242, 242, 242, 0.88);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
}

.btn--ghost:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.04);
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--size-xs);
  font-family: var(--font-heading);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
}

.badge::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: currentColor;
  opacity: 0.6;
}

.badge--dev {
  color: #a8875a;
  border-color: rgba(168, 135, 90, 0.25);
  background: rgba(168, 135, 90, 0.06);
}

/* --- Glass Card --- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: border-color var(--transition-base), background var(--transition-base);
}

.glass-card:hover {
  border-color: var(--border-medium);
  background: rgba(255, 255, 255, 0.05);
}

/* --- WebGL Scene Container (future-proofing) --- */
.webgl-scene-container {
  position: relative;
  width: 100%;
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.webgl-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: var(--size-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  pointer-events: none;
  user-select: none;
}

.webgl-fallback::before {
  content: '';
  display: block;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  transform: rotate(45deg);
  opacity: 0.5;
}

/* --- External Link Arrow --- */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--size-sm);
  font-family: var(--font-heading);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.link-arrow:hover {
  color: var(--text-primary);
  gap: var(--space-3);
}

.link-arrow svg {
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.link-arrow:hover svg {
  transform: translate(2px, -2px);
}

/* --- Utility --- */
.text-secondary { color: var(--text-secondary); }
.text-muted     { color: var(--text-muted); }
.text-primary   { color: var(--text-primary); }

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Responsive base --- */
@media (max-width: 768px) {
  .container {
    padding-inline: var(--space-5);
  }
  .section {
    padding-block: var(--space-16);
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: var(--space-4);
  }
}