/* ==========================================================================
   MEGASUFIT — Base / Reset / Primitives
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: var(--lh-heading);
  margin: 0;
  color: inherit;
}

h1 { font-size: var(--fs-h1); line-height: var(--lh-tight); letter-spacing: -0.01em; }
h2 { font-size: var(--fs-h2); letter-spacing: -0.01em; }
h3 { font-size: var(--fs-h3); }

p { margin: 0; }

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

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

/* Visible keyboard focus everywhere */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Layout primitives */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--space-2xl);
}

.section--tight {
  padding-block: var(--space-xl);
}

.section--dark {
  background: var(--color-ink);
  color: var(--color-text-inverse);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--fs-micro);
  letter-spacing: 0.06em;
  color: var(--color-accent);
  font-weight: 600;
}
.eyebrow::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--color-accent);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-lg);
}
.section-head p {
  margin-top: var(--space-sm);
  color: var(--color-text-muted);
  font-size: var(--fs-lead);
}
.section--dark .section-head p { color: var(--color-text-inverse-muted); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.9rem 1.7rem;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-ink);
}
.btn--accent:hover { background: var(--color-accent-soft); }

.btn--ghost-dark {
  border: 1px solid var(--color-border-dark);
  color: var(--color-text-inverse);
}
.btn--ghost-dark:hover { border-color: var(--color-accent); color: var(--color-accent); }

.btn--ghost-light {
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn--ghost-light:hover { border-color: var(--color-accent); color: var(--color-accent); }

.btn--text {
  padding: 0;
  font-weight: 600;
  border-bottom: 1px solid currentColor;
  border-radius: 0;
}

/* Visually hidden (accessibility) */
.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;
}

/* Reveal-on-scroll utility (single orchestrated pattern, used deliberately per-block) */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}