/* ============================================================
   Bao.buzz — Base reset & document styles
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.6;
  color: var(--ink-0);
  background: var(--bg-0);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
  overflow-x: hidden;
  min-height: 100dvh;
}

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

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

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

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

/* Reset native fieldset chrome (so step-panels don't show a default browser border) */
fieldset {
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}
legend { padding: 0; }

::selection {
  background: var(--pastel-yellow);
  color: var(--ink-0);
}

/* Focus ring */
:focus-visible {
  outline: 3px solid var(--stroke-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  padding: var(--space-3) var(--space-4);
  background: var(--ink-0);
  color: var(--bg-0);
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: var(--space-3); top: var(--space-3); }

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

/* Section base */
section {
  padding-block: clamp(var(--space-8), 10vw, var(--space-10));
  position: relative;
}

/* Headings */
h1, h2 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink-0);
}
h1 { font-size: var(--text-h1); line-height: 0.95; }
h2 { font-size: var(--text-h2); line-height: 1.05; }
h3 {
  font-family: var(--font-sans);
  font-size: var(--text-h3);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

p { color: var(--ink-1); max-width: 64ch; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-tag);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--pastel-orange);
  display: inline-block;
}

.section-head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-7);
  max-width: 720px;
}
.section-head p { font-size: 18px; }

/* Helpers */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.text-grad {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  background-size: 200% 200%;
  animation: gradShift 12s var(--ease-in-out) infinite;
}

@keyframes gradShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Loading shape */
.loader-shape {
  width: 16px; height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }