/* ============================================================
   Toucan — base / reset / primitives
   ============================================================ */

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--lh-body);
  color: var(--text-on-light);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

::selection { background: var(--beak-3); color: #fff; }

:focus-visible {
  outline: 2px solid var(--beak-2);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--text-on-dark);
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
  transition: transform var(--dur-fast) var(--ease-out);
}
.skip-link:focus { transform: translateY(0); }

/* ---- Layout shell ---- */
.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

/* ---- Eyebrow label ---- */
.eyebrow {
  font-size: var(--text-eyebrow);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.eyebrow--dark { color: var(--beak-2); }

/* ---- Buttons ---- */
.btn {
  --btn-bg: transparent;
  --btn-fg: currentColor;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1;
  padding: 0.95em 1.6em;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition:
    transform var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-soft),
    border-color var(--dur-fast) var(--ease-soft),
    box-shadow var(--dur-fast) var(--ease-soft),
    opacity var(--dur-fast);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  --btn-fg: #fff;
  background: var(--accent-grad);
  box-shadow: 0 10px 30px -12px rgba(255, 45, 120, 0.6);
}
.btn--primary:hover { box-shadow: 0 16px 40px -12px rgba(255, 45, 120, 0.75); }

.btn--ghost {
  --btn-fg: var(--text-on-dark);
  border-color: var(--ink-line);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover { border-color: rgba(255, 255, 255, 0.32); background: rgba(255, 255, 255, 0.08); }

.btn--small { padding: 0.6em 1.15em; font-size: 0.9rem; }
.btn--lg { padding: 1.1em 2.2em; font-size: 1.1rem; }

/* ---- Reveal-on-scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .orb { animation: none !important; }
  .btn:hover { transform: none; }
}