/* DragonBid 手機優化與現代化樣式 */

/* ===== 色彩主題變數 ===== */
:root {
  /* 龍族幻想主題色彩 */
  --dragon-gold: #ffd700;
  --dragon-red: #dc2626;
  --dragon-blue: #2563eb;
  --fantasy-purple: #7c3aed;
  --background-dark: #0f172a;
  --card-bg: #1e293b;
  
  /* 現代化色彩 */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --success-gradient: linear-gradient(135deg, #11cdef 0%, #1171ef 100%);
  --warning-gradient: linear-gradient(135deg, #ff8a00 0%, #e52e71 100%);
  --danger-gradient: linear-gradient(135deg, #f5365c 0%, #f093fb 100%);
  
  /* 陰影系統 */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
  
  /* 動畫時間 */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===== 暗色模式支援 ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --bs-body-bg: #1a1a1a;
    --bs-body-color: #e5e5e5;
    --bs-card-bg: #2d2d2d;
  }
}

/* ===== 手機優先響應式設計 ===== */

/* 基礎容器優化 */
.container-fluid {
  padding-left: 15px;
  padding-right: 15px;
}

@media (max-width: 767.98px) {
  .container-fluid {
    padding-left: 10px;
    padding-right: 10px;
  }
  
  /* 標題在手機上較小 */
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.3rem; }
  h3 { font-size: 1.1rem; }
}

/* ===== 按鈕優化 ===== */
.btn {
  border-radius: 12px;
  font-weight: 600;
  transition: all var(--transition-normal);
  min-height: 44px; /* iOS 觸控建議 */
  box-shadow: var(--shadow-sm);
}

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

.btn:active {
  transform: translateY(0);
}

/* 遊戲風格按鈕 */
.btn-game-primary {
  background: var(--primary-gradient);
  border: none;
  color: black;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.btn-game-primary:hover {
  background: var(--primary-gradient);
  filter: brightness(1.1);
  color: black;
}

.btn-dragon-gold {
  background: linear-gradient(45deg, var(--dragon-gold), #ffed4e);
  border: none;
  color: #1a1a1a;
  font-weight: bold;
}

.btn-dragon-gold:hover {
  background: linear-gradient(45deg, #ffed4e, var(--dragon-gold));
  color: #1a1a1a;
  box-shadow: 0 6px 20px rgba(255,215,0,0.4);
}

/* ===== 卡片優化 ===== */
.card {
  border-radius: 16px;
  border: none;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  overflow: hidden;
}

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

.card-game {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.18);
}

.card-header {
  background: var(--primary-gradient);
  border: none;
  color: black;
  font-weight: 600;
}

/* ===== 表單優化 ===== */
.form-control, .form-select {
  border-radius: 12px;
  border: 2px solid #e2e8f0;
  transition: all var(--transition-fast);
  min-height: 44px; /* 手機觸控優化 */
}

.form-control:focus, .form-select:focus {
  border-color: var(--dragon-blue);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

/* ===== 徽章優化 ===== */
.badge {
  border-radius: 8px;
  padding: 0.5em 0.8em;
  font-weight: 600;
}

.badge-fragment {
  background: var(--success-gradient);
  color: black;
}

.badge-gold {
  background: linear-gradient(45deg, var(--dragon-gold), #ffed4e);
  color: #1a1a1a;
}

/* ===== 手機導航優化 ===== */
@media (max-width: 991.98px) {
  .navbar-nav {
    text-align: center;
    margin-top: 1rem;
  }
  
  .navbar-nav .nav-link {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin: 0.25rem 0;
  }
  
  .dropdown-menu {
    position: static !important;
    float: none;
    border: none;
    box-shadow: none;
    background: transparent;
  }
}

/* ===== 模態框優化 ===== */
.modal-content {
  border-radius: 20px;
  border: none;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  background: var(--primary-gradient);
  color: black;
  border-radius: 20px 20px 0 0;
}

.modal-footer {
  border: none;
  background: #f8f9fa;
  border-radius: 0 0 20px 20px;
}

/* ===== 碎片按鈕樣式 ===== */
.btn-check:checked + .btn-outline-warning {
  background: var(--warning-gradient);
  border-color: transparent;
  color: black;
}

.btn-check:checked + .btn-outline-info {
  background: var(--success-gradient);
  border-color: transparent;
  color: black;
}

.btn-check:checked + .btn-outline-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-color: transparent;
  color: black;
}

.btn-check:checked + .btn-outline-danger {
  background: var(--danger-gradient);
  border-color: transparent;
  color: black;
}

.btn-check:checked + .btn-outline-primary {
  background: var(--primary-gradient);
  border-color: transparent;
  color: black;
}

/* ===== 圖片優化 ===== */
img {
  transition: all var(--transition-normal);
}

img:hover {
  transform: scale(1.05);
}

.item-image {
  border-radius: 12px;
  object-fit: cover;
  box-shadow: var(--shadow-sm);
}

/* ===== 動畫效果 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.pulse-on-hover:hover {
  animation: pulse 0.6s ease;
}

/* ===== 載入動畫 ===== */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid var(--dragon-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== 通知樣式優化 ===== */
.alert {
  border-radius: 12px;
  border: none;
  box-shadow: var(--shadow-sm);
}

.alert-success {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(5, 150, 105, 0.1) 100%);
  color: #065f46;
  border-left: 4px solid #10b981;
}

.alert-info {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(37, 99, 235, 0.1) 100%);
  color: #1e40af;
  border-left: 4px solid #3b82f6;
}

.alert-warning {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(217, 119, 6, 0.1) 100%);
  color: #92400e;
  border-left: 4px solid #f59e0b;
}

.alert-danger {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.1) 100%);
  color: #991b1b;
  border-left: 4px solid #ef4444;
}

/* ===== 手機列表優化 ===== */
@media (max-width: 767.98px) {
  .list-group-item {
    padding: 1rem;
    border-radius: 12px !important;
    margin-bottom: 0.5rem;
    border: none;
    box-shadow: var(--shadow-sm);
  }
  
  .list-group {
    gap: 0.5rem;
  }
  
  /* 卡片在手機上單列顯示 */
  .col-md-6, .col-lg-6 {
    width: 100% !important;
    max-width: 100% !important;
  }
  
  /* 按鈕在手機上較大 */
  .btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
}

/* ===== 觸控友好的間距 ===== */
@media (max-width: 767.98px) {
  .btn + .btn {
    margin-left: 0.5rem;
    margin-top: 0.5rem;
  }
  
  .me-2 {
    margin-right: 0.75rem !important;
  }
  
  .mb-2 {
    margin-bottom: 0.75rem !important;
  }
  
  .p-3 {
    padding: 1.5rem !important;
  }
}

/* ===== 滾動條美化 ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--dragon-blue);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dragon-red);
}

/* ===== 遊戲風格裝飾 ===== */
.game-border {
  border: 2px solid transparent;
  background: linear-gradient(black, black), var(--primary-gradient);
  background-clip: padding-box, border-box;
}

.dragon-glow {
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.fantasy-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: bold;
}