/* SkinFusion v2 — base reset, typography, utilities */

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

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, picture, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; border: none; background: none; }
a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
h1 { font-size: var(--text-display); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); }
p  { text-wrap: pretty; }

h1 em, h2 em {
  font-style: italic;
  color: var(--accent);
}
.section--ink h1 em, .section--ink h2 em { color: var(--ink-accent); }

/* prices and figures read precise */
.num { font-variant-numeric: tabular-nums; }

/* anchor offsets under fixed nav */
section[id], [id].anchor-target { scroll-margin-top: 88px; }

/* === layout utilities ==================================================== */
.container { max-width: var(--container); margin-inline: auto; padding-inline: var(--s-6); }
.container--text { max-width: var(--container-text); }

.section { padding-block: var(--s-20); position: relative; }
@media (min-width: 768px) { .section { padding-block: var(--s-32); } }
@media (min-width: 1024px) { .section { padding-block: var(--s-40); } }

.section--tint { background: var(--bg-tint); }
.section--ink {
  background:
    url('../img/grain.png'),
    var(--ink-bg);
  background-blend-mode: overlay;
  color: var(--ink-fg);
}
.section--ink .eyebrow { color: var(--ink-accent); }
.section--ink p { color: var(--ink-fg-muted); }
.section--ink h2, .section--ink h3, .section--ink .num { color: var(--ink-fg); }

/* === eyebrow labels (sans, spa register — every section heading) ========= */
.eyebrow {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--s-4);
}

/* === text hierarchy ======================================================= */
.lede { font-size: var(--text-lg); color: var(--fg-secondary); max-width: 56ch; }
.muted { color: var(--fg-muted); }
.small { font-size: var(--text-sm); }

/* === links ================================================================ */
.textlink {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--dur-fast) var(--ease-enter);
}
.textlink:hover { text-decoration-color: var(--fg); }

/* === buttons ============================================================== */
.btn {
  text-decoration: none;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 14px 28px;
  min-height: 48px;
  font-weight: 600;
  font-size: var(--text-base);
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--dur-fast) var(--ease-enter), box-shadow var(--dur-fast) var(--ease-enter);
}
.btn:hover { transform: scale(1.03); box-shadow: var(--elev-2); }
.btn:active { transform: scale(0.99); }
.btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.btn--primary { background: var(--accent); color: var(--accent-fg); }
.btn--primary:hover { background: var(--accent-hover); }
.btn--ghost { border: 1px solid var(--border); color: var(--fg); background: transparent; }
.btn--ghost:hover { border-color: var(--fg-secondary); }
.section--ink .btn--ghost { border-color: var(--ink-border); color: var(--ink-fg); }
.btn--lg { padding: 18px 36px; font-size: var(--text-lg); }

/* === reveal animation (IO) =============================================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-slow) var(--ease-enter), transform var(--dur-slow) var(--ease-enter);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.in { opacity: 1; transform: none; }

/* === focus + interaction states =========================================== */
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.interactive { position: relative; }
.interactive::after {
  content: ""; position: absolute; inset: 0;
  background: currentColor; opacity: 0; border-radius: inherit;
  transition: opacity var(--dur-fast) var(--ease-enter);
  pointer-events: none;
}
.interactive:hover::after { opacity: 0.06; }
.interactive:active::after { opacity: 0.1; }

/* === skip link ============================================================ */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink-bg); color: var(--ink-fg);
  padding: var(--s-3) var(--s-6);
}
.skip-link:focus { left: 0; }

/* === reduced motion kill-switch =========================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .bubble-field, .bubble-stream, .btn-bubbles { display: none !important; }
}