/* ========================================
   Hero Component
   主視覺區塊、標題、主題切換按鈕
   ======================================== */

/* ─── Brand Header Spacing ─────────────── */

hello-ruru-header {
  display: block;
  margin-bottom: 28px;
}

/* ─── Hero ─────────────────────────────── */

.hero {
  padding: 48px 24px 40px;
  background: linear-gradient(180deg, #FFF5F5 0%, #F5F0FA 50%, var(--color-bg) 100%);
  position: relative;
}

[data-theme="dark"] .hero {
  background: linear-gradient(180deg, #2A1F1F 0%, #2A1F2A 50%, var(--color-bg) 100%);
}

.hero__header {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.hero__title-group {
  text-align: center;
  flex: 1;
}

.hero::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(212,165,165,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero__title {
  font-family: var(--font-main);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.hero__icon {
  flex-shrink: 0;
  stroke: var(--color-primary);
  filter: drop-shadow(0 2px 4px rgba(212, 165, 165, 0.3));
  animation: float 3s ease-in-out infinite;
}

.hero__icon:last-child {
  animation-delay: 1.5s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

.hero__subtitle {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-muted);
  line-height: 1.6;
  position: relative;
}

/* ─── Theme Toggle ─────────────────────── */

.theme-toggle {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.theme-toggle:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(212, 165, 165, 0.2);
}

.theme-toggle:active {
  transform: scale(0.96);
}

.theme-toggle__icon {
  transition: var(--transition);
  opacity: 0;
  position: absolute;
}

/* Light mode: 顯示太陽圖標 */
:root .theme-toggle__icon--sun,
[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 1;
}

/* Dark mode: 顯示月亮圖標 */
[data-theme="dark"] .theme-toggle__icon--moon {
  opacity: 1;
}

[data-theme="dark"] .theme-toggle__icon--sun {
  opacity: 0;
}