/* ==========================================================================
   Base — reset, body defaults, typography
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* offset for sticky nav when jumping to anchors */
}

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ---- Headings ---- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-optical-sizing: auto;
}

/* ---- Utility classes for typography ---- */
.serif { font-family: var(--font-serif); }
.sans { font-family: var(--font-sans); }
.mono { font-family: var(--font-mono); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-500);
}

.eyebrow.cyan { color: var(--cyan-500); }
.eyebrow.bone { color: var(--bone-soft); }
.eyebrow.amber-light { color: var(--amber-400); }

/* ---- Layout helpers ---- */
.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

@media (max-width: 768px) {
  .wrap { padding: 0 var(--gutter-mobile); }
}

section {
  padding: 96px 0;
  position: relative;
}

@media (max-width: 768px) { section { padding: 64px 0; } }
@media (max-width: 480px) { section { padding: 56px 0; } }

/* Section heads — used across multiple sections */
.section-head {
  max-width: 760px;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: var(--type-h2);
  margin-top: 12px;
  margin-bottom: 16px;
}

.section-head p {
  font-size: var(--type-body-lg);
  color: var(--ink-soft);
  line-height: 1.55;
}

@media (max-width: 768px) {
  .section-head { margin-bottom: 40px; }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, color 0.2s;
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary {
  background: var(--amber-500);
  color: var(--paper);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}
.btn-primary:hover {
  background: var(--amber-600);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-amber);
}
.btn-primary .arrow { transition: transform 0.2s; }
.btn-primary:hover .arrow { transform: translateX(3px); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule);
}
.btn-ghost:hover {
  border-color: var(--ink);
  background: rgba(20,24,31,0.04);
}

.btn-dark {
  background: var(--slate-900);
  color: var(--bone);
}
.btn-dark:hover {
  background: var(--slate-800);
  transform: translateY(-1px);
}