/* 民俗提醒 Landing Page - 共用樣式 */

/* === 基礎設定 === */
:root {
  --color-primary: #C41E3A;
  --color-primary-dark: #A01830;
  --color-gold: #FFD700;
  --color-bg: #FFF8F0;
  --color-white: #FFFFFF;
  --color-text: #333333;
  --color-text-secondary: #666666;
  --color-border: #E5E5E5;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --max-width: 1100px;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

/* === 容器 === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* === 按鈕 === */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 12px;
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  text-decoration: none;
}

.btn-disabled {
  background-color: #CCCCCC;
  color: var(--color-white);
  cursor: not-allowed;
}

/* === Hero Section === */
.hero {
  padding: var(--spacing-xl) 0;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
}

.hero-text {
  flex: 1;
}

.hero-icon {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin-bottom: var(--spacing-md);
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.hero-image {
  flex: 0 0 auto;
}

.hero-screenshot {
  max-width: 280px;
  border-radius: 24px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

/* === Features Section === */
.features {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-white);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-lg);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-md);
  object-fit: contain;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.feature-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* === CTA Section === */
.cta {
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.cta-title {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
}

.cta-note {
  margin-top: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* === Footer === */
.footer {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  text-align: center;
}

.footer-brand {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  margin-bottom: var(--spacing-md);
}

.footer-links a {
  color: var(--color-text-secondary);
  margin: 0 var(--spacing-md);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* === Privacy Page === */
.page-header {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.page-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-header-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
}

.page-header-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.page-header-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

.page-content {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-white);
  min-height: calc(100vh - 200px);
}

.page-content h1 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.page-content h2 {
  font-size: 1.5rem;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.page-content h3 {
  font-size: 1.125rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.page-content p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

.page-content ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.page-content li {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.page-content strong {
  color: var(--color-text);
}

.page-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-lg) 0;
}

.update-date {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-lg);
}

/* === RWD === */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: var(--spacing-lg) 0;
  }

  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
  }

  .hero-image {
    order: 2;
    margin-top: var(--spacing-lg);
  }

  .hero-screenshot {
    max-width: 220px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .section-title {
    font-size: 1.5rem;
  }

  .cta-title {
    font-size: 1.375rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }
}