/* ==========================================================================
   Base — reset, custom properties, typography
   ========================================================================== */

:root {
  /* Colors */
  --color-bg: #0b0f14;
  --color-surface: #131920;
  --color-border: #1e2d3d;
  --color-accent: #ffde59;
  --color-accent-dim: #e8c93a;
  --color-highlight: #5b8def;
  --color-text: #e8edf2;
  --color-muted: #7a8a9a;
  --color-danger: #f05c5c;

  /* Typography */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.75rem;
  --text-4xl: 3.75rem;

  --container-width: 1100px;
  --radius: 8px;

  --section-pad: 64px;
}

@media (min-width: 768px) {
  :root {
    --section-pad: 96px;
  }
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 1100px) {
  body {
    font-size: 18px;
  }
}

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

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

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
p,
figure {
  margin: 0;
}

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

@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;
  }
}

/* Typography */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
}

h1 {
  font-size: var(--text-3xl);
}
h2 {
  font-size: var(--text-2xl);
}
h3 {
  font-size: var(--text-xl);
}

@media (min-width: 1100px) {
  h1 {
    font-size: var(--text-4xl);
  }
  h2 {
    font-size: var(--text-3xl);
  }
}

.eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.lead {
  font-size: var(--text-lg);
  color: var(--color-muted);
  max-width: 640px;
}

code,
.mono {
  font-family: var(--font-mono);
}

/* Layout helpers */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-pad) 0;
}

.section--surface {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

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