/* components.css — 按钮/卡片/导航/毛玻璃/trust块/复制块 */

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 24px;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: var(--fs-body);
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--dur-normal) var(--ease-out);
  text-transform: lowercase;
}

.btn-primary {
  background: var(--color-maroon);
  color: var(--color-on-maroon);
}
.btn-primary:hover {
  background: var(--color-maroon-deep);
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.btn-secondary {
  background: transparent;
  color: var(--color-maroon);
  border-color: var(--color-maroon);
}
.btn-secondary:hover {
  background: var(--color-maroon);
  color: var(--color-on-maroon);
}

/* ===== Cards ===== */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  box-shadow: var(--shadow-soft);
  transition: all var(--dur-normal) var(--ease-out);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-strong);
  border-color: transparent;
}

.card-maroon {
  background: var(--color-maroon);
  color: var(--color-on-maroon);
}
.card-maroon p { color: rgba(255, 255, 255, 0.8); }

/* ===== Swatch（色卡）===== */
.swatch {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  transition: transform var(--dur-normal) var(--ease-out);
}
.swatch:hover { transform: translateY(-2px); }
.swatch-color {
  aspect-ratio: 16 / 9;
  position: relative;
}
.swatch-meta {
  padding: var(--space-4);
  background: var(--color-white);
}
.swatch-name {
  font-family: var(--font-ui);
  font-weight: 500;
  margin-bottom: var(--space-1);
}
.swatch-hex {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--color-ink-70);
}

/* ===== Grid helpers ===== */
.grid {
  display: grid;
  gap: var(--space-6);
}
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

/* ===== Code block + Copy ===== */
.code-block {
  position: relative;
  background: var(--color-maroon-deep);
  color: var(--color-on-maroon);
  padding: var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  line-height: var(--lh-normal);
  overflow-x: auto;
}
.code-block pre { white-space: pre; }

.copy-btn {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-on-maroon);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  font-family: var(--font-ui);
  transition: all var(--dur-fast) var(--ease-out);
}
.copy-btn:hover { background: rgba(255, 255, 255, 0.2); }
.copy-btn.copied { background: var(--color-on-maroon); color: var(--color-maroon-deep); }

/* ===== Navigation（毛玻璃）===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-normal) var(--ease-out);
}
.nav.is-scrolled { border-bottom-color: rgba(26, 26, 26, 0.08); }
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
}
.nav-brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.25rem;
}
.nav-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--color-ink-70);
  font-family: var(--font-ui);
  font-size: var(--fs-small);
}
.nav-links a:hover { color: var(--color-maroon); }

/* ===== Language toggle ===== */
.nav-lang {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  font-family: var(--font-ui);
  font-size: var(--fs-small);
  color: var(--color-ink-70);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  /* Keep "EN / 中" at their native case regardless of body lowercase rule. */
  text-transform: none;
}
.nav-lang:hover { border-color: var(--color-maroon); color: var(--color-maroon); }
.nav-lang .nav-lang-active {
  color: var(--color-maroon);
  font-weight: 600;
}
.nav-lang .nav-lang-sep {
  color: var(--color-ink-50);
  font-weight: 300;
}

/* ===== Trust block（深酒红色块）===== */
.trust-block {
  background: var(--color-maroon);
  color: var(--color-on-maroon);
  padding: var(--space-16) var(--space-8);
  border-radius: var(--radius-lg);
  text-align: center;
}
.trust-block h2 { color: var(--color-on-maroon); }
.trust-block p { color: rgba(255, 255, 255, 0.8); }

/* ===== Rule callout（NO GOLD / All Lowercase）===== */
.rule-callout {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-hairline);
  border-left: 4px solid var(--color-maroon);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-8);
}
.rule-callout-label {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--color-maroon);
  font-weight: 700;
  letter-spacing: 0.08em;
  /* Override body's text-transform:lowercase so "NO GOLD" / "ALL LOWERCASE"
     render as intended all-caps. */
  text-transform: uppercase;
}

/* ===== Hero（居中海报感） ===== */
.hero {
  padding-top: var(--space-16);
  padding-bottom: var(--space-24);
  text-align: center;
}

/* Brand mark — 临时替代 logo 的深酒红色块 */
.brand-mark {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-8);
  background: var(--color-maroon);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-strong);
  transition: transform var(--dur-slow) var(--ease-out);
}
.brand-mark:hover { transform: translateY(-4px); }
.brand-mark-glyph {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 26px;
  color: var(--color-cream);
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-transform: lowercase;
  text-align: center;
  display: flex;
  flex-direction: column;
}
.brand-mark-glyph small {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 6px;
}

.hero-sub {
  font-family: var(--font-mono);
  color: var(--color-ink-50);
  margin: 0 auto var(--space-4);
  letter-spacing: 0.04em;
}
.hero-title {
  max-width: 20ch;
  margin: 0 auto var(--space-6);
  /* Larger + heavier than default h1 for poster-like impact */
  font-size: clamp(3rem, 6vw + 1rem, 6.5rem);
}
.hero-intro {
  max-width: 36ch;
  margin: 0 auto var(--space-12);
  text-align: center;
}
.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
  margin: 0 auto var(--space-16);
}
.hero-examples {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(3, 1fr);
  max-width: 720px;
  margin: 0 auto;
}
@media (max-width: 640px) {
  .brand-mark { width: 96px; height: 96px; }
  .brand-mark-glyph { font-size: 68px; }
  .hero-examples { grid-template-columns: 1fr; }
}
.hero-example-card {
  padding: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  transition: all var(--dur-normal) var(--ease-out);
}
.hero-example-card:hover { box-shadow: var(--shadow-card); transform: translateY(-2px); border-color: transparent; }
.hero-example-label {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--color-ink-50);
}
.hero-example-url {
  font-family: var(--font-ui);
  color: var(--color-maroon);
  font-weight: 500;
}

/* ===== Voice & Tone 表格 ===== */
.tone-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.tone-table th,
.tone-table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid rgba(26, 26, 26, 0.06);
}
.tone-table th {
  background: var(--color-maroon);
  color: var(--color-on-maroon);
  font-family: var(--font-ui);
  font-weight: 500;
}
.tone-table tr:last-child td { border-bottom: none; }

.voice-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
@media (max-width: 640px) {
  .voice-compare { grid-template-columns: 1fr; }
}
.voice-cell {
  padding: var(--space-6);
  border-radius: var(--radius-md);
}
.voice-cell.bad { background: rgba(26, 26, 26, 0.04); }
.voice-cell.good { background: var(--color-maroon); color: var(--color-on-maroon); }
.voice-cell-label {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  margin-bottom: var(--space-3);
  letter-spacing: 0.08em;
}

/* ===== Logo 占位 ===== */
.logo-placeholder {
  aspect-ratio: 1 / 1;
  border: 2px dashed var(--color-maroon-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-maroon-light);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  background: rgba(122, 35, 36, 0.04);
  text-align: center;
  padding: var(--space-4);
}