/* ═══════════════════════════════════════════════════════════════
   MHDSRIP — Base Styles
   Modern resets + typography + accessibility utilities
   ═══════════════════════════════════════════════════════════════ */

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

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
}

body {
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--bg);
  font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1, 'ss01' 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
}

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

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

button {
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
a:hover { color: var(--accent-deep); }

p, li { text-wrap: pretty; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; }

#root, #__next { isolation: isolate; }

/* ── TYPOGRAPHY ─────────────────────────────────────────────── */

.display-1 {
  font-family: var(--font-display);
  font-size: var(--t-display-1);
  line-height: var(--lh-display);
  letter-spacing: var(--track-tighter);
  font-weight: var(--fw-display);
  font-variation-settings: 'opsz' 108, 'SOFT' 50;
}
.display-2 {
  font-family: var(--font-display);
  font-size: var(--t-display-2);
  line-height: var(--lh-display);
  letter-spacing: var(--track-tight);
  font-weight: var(--fw-display);
  font-variation-settings: 'opsz' 96;
}
.heading-1 {
  font-family: var(--font-display);
  font-size: var(--t-h1);
  line-height: var(--lh-heading);
  letter-spacing: var(--track-tight);
  font-weight: var(--fw-heading);
  font-variation-settings: 'opsz' 72;
}
.heading-2 {
  font-family: var(--font-display);
  font-size: var(--t-h2);
  line-height: var(--lh-heading);
  letter-spacing: var(--track-tight);
  font-weight: var(--fw-heading);
  font-variation-settings: 'opsz' 48;
}
.heading-3 {
  font-family: var(--font-body);
  font-size: var(--t-h3);
  line-height: var(--lh-tight);
  letter-spacing: var(--track-tight);
  font-weight: var(--fw-strong);
}
.lead {
  font-size: var(--t-lead);
  line-height: var(--lh-body);
  color: var(--ink-soft);
  font-weight: var(--fw-body);
}
.body-lg { font-size: var(--t-body-lg); line-height: var(--lh-body); }
.body    { font-size: var(--t-body);    line-height: var(--lh-body); }
.body-sm { font-size: var(--t-sm);      line-height: var(--lh-body); }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--t-eyebrow);
  font-weight: var(--fw-strong);
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--ink-quiet);
}

.muted { color: var(--ink-muted); }
.quiet { color: var(--ink-quiet); }
.serif { font-family: var(--font-display); font-variation-settings: 'opsz' 24; }
.italic { font-style: italic; }

/* ── LAYOUT UTILITIES ───────────────────────────────────────── */

.container {
  width: 100%;
  max-width: var(--container-lg);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-xl { max-width: var(--container-xl); }

.stack { display: flex; flex-direction: column; gap: var(--gap, var(--s-4)); }
.stack-sm  { --gap: var(--s-2); }
.stack-md  { --gap: var(--s-4); }
.stack-lg  { --gap: var(--s-6); }
.stack-xl  { --gap: var(--s-8); }

.row { display: flex; gap: var(--gap, var(--s-4)); }
.row-center { align-items: center; }
.row-between { justify-content: space-between; }

.grid { display: grid; gap: var(--gap, var(--s-4)); }

/* ── 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;
}

.skip-link {
  position: absolute;
  top: var(--s-3);
  left: var(--s-3);
  z-index: 1000;
  padding: var(--s-2) var(--s-4);
  background: var(--ink);
  color: var(--bg-paper);
  font-size: var(--t-sm);
  font-weight: var(--fw-strong);
  border-radius: var(--r-md);
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform var(--dur-fast) var(--ease-out);
}
.skip-link:focus {
  transform: translateY(0);
  outline: none;
  box-shadow: var(--ring);
}

:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: var(--r-sm);
}

::selection {
  background: color-mix(in srgb, var(--accent) 25%, transparent);
  color: var(--ink);
}

/* ── ENTRANCE ANIMATIONS ────────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

.fade-up  { animation: fadeUp var(--dur-entry) var(--ease-out) both; }
.fade-in  { animation: fadeIn var(--dur-slow) var(--ease-out) both; }
.scale-in { animation: scaleIn var(--dur-slow) var(--ease-spring) both; }

/* Staggered children — parent sets .stagger, children auto-delay */
.stagger > * { animation: fadeUp var(--dur-entry) var(--ease-out) both; }
.stagger > *:nth-child(1) { animation-delay:  60ms; }
.stagger > *:nth-child(2) { animation-delay: 120ms; }
.stagger > *:nth-child(3) { animation-delay: 180ms; }
.stagger > *:nth-child(4) { animation-delay: 240ms; }
.stagger > *:nth-child(5) { animation-delay: 300ms; }
.stagger > *:nth-child(6) { animation-delay: 360ms; }
.stagger > *:nth-child(7) { animation-delay: 420ms; }
.stagger > *:nth-child(8) { animation-delay: 480ms; }