/* ==========================================================================
   main.css
   Global reset, design tokens (colors/type/spacing), and shared utilities.
   Every page imports this FIRST, then its own page-specific stylesheet.
   ========================================================================== */

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

/* ---------- Design tokens ---------- */
:root {
  /* Colors — matches collins-dev.netlify.app dark theme */
  --bg-base: #0A0E17;
  --bg-elevated: #12172A;
  --bg-card: #161C33;
  --border-subtle: #232B45;

  --text-primary: #F4F6FB;
  --text-secondary: #9AA4C0;
  --text-muted: #626E92;

  --accent-blue: #3B82F6;
  --accent-blue-dim: #2554AE;
  --accent-amber: #F59E0B;
  --accent-amber-dim: #B87909;

  --success: #22C55E;
  --danger: #EF4444;

  /* Type scale */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 0.18s;
  --duration-normal: 0.35s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

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

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

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

/* ---------- Shared utility classes ---------- */

.container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-blue);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-md);
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent-blue);
  color: #FFFFFF;
  box-shadow: 0 4px 24px -4px rgba(59, 130, 246, 0.45);
}

.btn-primary:hover {
  background: #4C8DF7;
  box-shadow: 0 6px 30px -4px rgba(59, 130, 246, 0.6);
}

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

.btn-secondary:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* Visible keyboard focus state — accessibility floor */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}