/* ============================================================
   BASE
   Reset, global element defaults, shared utility classes.
   ============================================================ */

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

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-base);
  color: var(--color-light);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4 {
  line-height: var(--line-height-tight);
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
}

h1 { font-size: var(--font-size-hero); font-weight: var(--font-weight-extrabold); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-lg);  }

p  { line-height: var(--line-height-loose); }

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

ul, ol { list-style: none; }

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

/* ── Shared components ────────────────────────────────────── */

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.8125rem 1.5rem;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border-radius: var(--border-radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-teal);
  color: var(--color-bg);
  border-color: var(--color-teal);
}
.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: #00c9b3;
  border-color: #00c9b3;
  box-shadow: var(--shadow-teal);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-light);
  border-color: var(--color-border);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--color-gray);
  color: var(--color-white);
}

/* Focus ring — accessible */
:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Section label */
.section-label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-teal);
  letter-spacing: var(--letter-spacing-widest);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
}

/* Colour utility */
.text-teal  { color: var(--color-teal); }
.text-gray  { color: var(--color-gray); }
.text-white { color: var(--color-white); }

/* Section sub-copy (used in pricing) */
.section-sub {
  font-size: var(--font-size-md);
  color: var(--color-gray);
  margin-top: var(--space-3);
}

/* Horizontal rule */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-6) 0;
}

/* Pill badge */
.pill {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-5);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-teal);
  letter-spacing: var(--letter-spacing-wider);
  background-color: var(--color-teal-dim);
  border: 1px solid var(--color-teal-border);
  border-radius: var(--border-radius-pill);
  margin-bottom: var(--space-6);
  text-transform: uppercase;
}

/* ── Scroll-reveal animation ──────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--transition-slow),
    transform var(--transition-slow);
}
.reveal--right {
  transform: translateX(24px);
}
.reveal.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* Stagger children inside a revealed container */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity var(--transition-slow),
    transform var(--transition-slow);
}
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms;   opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 80ms;  opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 400ms; opacity:1; transform:none; }

/* Reduced-motion: skip all transitions */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger > *, * {
    transition: none !important;
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}