/* 
 * 臺灣彩票結果網站 - 現代化樣式系統
 * Material Design 3.0 + 紫紅漸變色調
 * 完全響應式設計
 */

/* ===== CSS 變量系統 ===== */
:root {
  /* 紫紅漸變色調主題 */
  --primary-50: #faf5ff;
  --primary-100: #f3e8ff;
  --primary-200: #e9d5ff;
  --primary-300: #d8b4fe;
  --primary-400: #c084fc;
  --primary-500: #a855f7;
  --primary-600: #9333ea;
  --primary-700: #7c3aed;
  --primary-800: #6b21a8;
  --primary-900: #581c87;

  /* 漸變色組合 */
  --gradient-primary: linear-gradient(135deg, #8b5cf6, #d946ef);
  --gradient-secondary: linear-gradient(135deg, #f3e8ff, #fdf2f8);
  --gradient-accent: linear-gradient(135deg, #ec4899, #f97316);
  --gradient-hero: linear-gradient(135deg, #6366f1, #8b5cf6, #d946ef);

  /* 中性色系 */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* 功能色彩 */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;

  /* 間距系統 (基於8px網格) */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */

  /* 圓角系統 */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-3xl: 2rem;      /* 32px */
  --radius-full: 9999px;

  /* 陰影系統 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* 字體系統 */
  --font-family-sans: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* 過渡動畫 */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;

  /* Z-index 層級 */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ===== 基礎重置和設置 ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== 容器系統 ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
}

/* ===== 現代化Header ===== */
.modern-header {
  background: var(--gradient-primary);
  color: white;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  min-height: 70px;
}

/* Logo 設計 */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: white;
  font-weight: 800;
  font-size: 1.25rem;
  transition: var(--transition-normal);
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  backdrop-filter: blur(10px);
}

/* 桌面導航 */
.nav-menu {
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
}

@media (min-width: 1024px) {
  .nav-menu {
    display: flex;
  }
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: var(--transition-normal);
}

.nav-link:hover::before,
.nav-link.active::before {
  left: 0;
}

.nav-link:hover,
.nav-link.active {
  color: white;
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.nav-icon {
  font-size: 1rem;
}

/* App下載按鈕 */
.app-download-buttons {
  display: none;
  gap: var(--spacing-sm);
}

@media (min-width: 1024px) {
  .app-download-buttons {
    display: flex;
  }
}

.app-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  color: white;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.85rem;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
}

.app-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.app-btn i {
  font-size: 1.1rem;
}

/* 移動端菜單按鈕 */
.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.mobile-menu-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

/* 移動端菜單 */
.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--gradient-primary);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(20px);
}

.mobile-menu.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-menu {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  transition: var(--transition-normal);
}

.mobile-nav-link:hover {
  background: rgba(255, 255, 255, 0.15);
  color: white;
}

/* ===== 現代化卡片系統 ===== */
.modern-card {
  background: white;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.modern-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-header {
  padding: var(--spacing-xl);
  background: var(--gradient-secondary);
  border-bottom: 1px solid var(--gray-200);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-title-icon {
  width: 2rem;
  height: 2rem;
  background: var(--gradient-accent);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.card-description {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0;
}

.card-content {
  padding: var(--spacing-xl);
}

/* ===== 按鈕系統 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-normal);
}

.btn:hover::before {
  left: 100%;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
  border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
  background: var(--gray-200);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-icon {
  font-size: 0.9rem;
}

/* CTA按鈕樣式 */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  background: linear-gradient(135deg, #8b5cf6, #d946ef) !important;
  color: white !important;
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-normal);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: white !important;
}

.cta-button:hover::before {
  left: 100%;
}

/* 確保CTA按鈕文字在所有情況下都是白色 */
.cta-button,
.cta-button:link,
.cta-button:visited,
.cta-button:hover,
.cta-button:active {
  color: white !important;
  text-decoration: none !important;
}

/* ===== 現代化Footer ===== */
.modern-footer {
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: white;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition-normal);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: white;
  text-decoration: underline;
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

/* ===== 動畫效果 ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in-up.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.slide-in {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.6s ease;
}

.slide-in.animate-in {
  opacity: 1;
  transform: translateX(0);
}

.bounce-in {
  opacity: 0;
  transform: scale(0.3);
  transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.bounce-in.animate-in {
  opacity: 1;
  transform: scale(1);
}

/* ===== 載入動畫 ===== */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== 響應式設計 ===== */
@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

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