/* ============================================================
   base.css – Reset, Typography, Utility Classes
   ============================================================ */

/* ── Google Fonts Import ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-slow), color var(--transition-slow);
  overflow-x: clip;
}

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

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

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

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

button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: var(--font-sans);
  font-size: var(--text-base);
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
@media (min-width: 1280px) { .container { padding-inline: var(--space-8); } }

/* ── Section Spacing ── */
.section { padding-block: var(--space-20); }
.section-sm { padding-block: var(--space-12); }
.section-lg { padding-block: var(--space-32); }

/* ── Section Header ── */
.section-header { text-align: center; margin-bottom: var(--space-12); }
.section-header .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: var(--color-primary-glow);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  border: 1px solid var(--color-bg-glass-border);
}
.section-header h2 {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}
.section-header p {
  font-size: var(--text-lg);
  max-width: 600px;
  margin-inline: auto;
  color: var(--color-text-secondary);
}

/* ── Text Gradient ── */
.text-gradient {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end), var(--clr-purple-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Geometric Shapes / Decorations ── */
.geo-decoration {
  position: absolute;
  pointer-events: none;
  z-index: var(--z-below);
}

.geo-circle {
  border-radius: var(--radius-full);
  background: radial-gradient(circle, var(--color-primary-glow), transparent 70%);
}

.geo-grid-dots {
  background-image: radial-gradient(var(--color-border) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
}

/* ── Ad Placement ── */
.ad-placement {
  position: relative;
  text-align: center;
  margin-block: var(--space-8);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-border);
  background: var(--color-bg-tertiary);
}
.ad-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}
.ad-placement img {
  margin-inline: auto;
  max-height: 250px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

/* ── Skip Link ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: var(--z-toast);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: top var(--transition-fast);
}
.skip-link:focus { top: var(--space-4); }

/* ── Screen Reader Only ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ── Toast / Alert ── */
.toast {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 500;
  box-shadow: var(--shadow-xl);
  animation: slideInRight var(--transition-slow) forwards;
  max-width: 360px;
}
.toast-success { background: var(--color-success); color: white; }
.toast-error   { background: var(--color-error); color: white; }
.toast-info    { background: var(--color-primary); color: white; }

@keyframes slideInRight {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0);   opacity: 1; }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg-secondary); }
::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-primary-hover); }

/* ── Selection ── */
::selection {
  background: var(--color-primary-glow);
  color: var(--color-text);
}

/* ── Animated gradient border ── */
.gradient-border {
  position: relative;
  border-radius: var(--radius-xl);
}
.gradient-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent), var(--color-accent-alt), var(--color-primary));
  background-size: 300% 300%;
  animation: gradientShift 4s ease infinite;
  z-index: var(--z-below);
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50%       { background-position: 100% 50%; }
}