/* ============================================================
   Yuralume — 形象網站共用基礎樣式
   只負責 reset / box-sizing / 流動排版的共通結構
   theme.css 覆寫 token (--color-*, --font-*)
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body, system-ui, -apple-system, "Segoe UI", sans-serif);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text, #111);
  background: var(--color-bg, #fff);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display, var(--font-body));
  font-weight: var(--weight-display, 600);
  letter-spacing: var(--tracking-display, -0.02em);
  line-height: 1.1;
  margin: 0;
}

p {
  margin: 0;
}

/* ---------- 排版 ---------- */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-tight {
  padding: 64px 0;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 900px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }
  .section {
    padding: 64px 0;
  }
}

@media (max-width: 600px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ---------- 共用 utility ---------- */
.eyebrow {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.lede {
  font-size: 18px;
  color: var(--color-muted);
  max-width: 60ch;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
}