/* ============================================================
   BASE — Reset & Foundational Styles
   ============================================================ */

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

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

body {
  background-color: var(--bg-deep);
  color: var(--white);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--teal-dark); border-radius: 2px; }

/* ── Links ── */
a { color: inherit; text-decoration: none; }

/* ── Images ── */
img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ── Lists ── */
ul, ol { list-style: none; }

/* ── Forms ── */
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}
button { cursor: pointer; border: none; background: none; }

/* ── Utility: Visually hidden ── */
.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;
}

/* ── Utility: Container ── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ── Utility: Section ── */
section {
  padding: var(--section-pad);
  position: relative;
}

/* ── Section Header ── */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.9rem;
}
.section-eyebrow::before,
.section-eyebrow::after {
  content: '';
  display: block;
  width: 22px;
  height: 1px;
  background: var(--teal);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.12;
  color: var(--white);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: var(--text-base);
  color: var(--white-dim);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.10s; }
.reveal-delay-2 { transition-delay: 0.20s; }
.reveal-delay-3 { transition-delay: 0.30s; }
.reveal-delay-4 { transition-delay: 0.40s; }

/* ── Focus visible ── */
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}