/**
 * 移動端 UI 修復
 * 版本: 1.0
 * 日期: 2025-11-07
 * 
 * 修復問題:
 * 1. 下一步按鈕文字換行
 * 2. 下一步按鈕顏色與日期按鈕相同
 * 3. 日期按鈕文字太小（手機版）
 * 4. 手機版顯示太多日期
 */

/* ========================================
   下一步按鈕修復
   ======================================== */

.date-next-step-btn,
.timeslot-next-step-btn {
  /* 防止文字換行 */
  white-space: nowrap !important;
  
  /* 改用藍色漸變（區別於紅色日期按鈕） */
  background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%) !important;
  color: white !important;
  
  /* 統一按鈕形狀 */
  border-radius: 12px !important;
  border: none !important;
  
  /* 尺寸 */
  min-width: 200px !important;
  padding: 14px 32px !important;
  
  /* 文字 */
  font-size: 16px !important;
  font-weight: 600 !important;
  
  /* 陰影 */
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3) !important;
  
  /* 交互 */
  cursor: pointer !important;
  transition: all 0.3s ease !important;
}

.date-next-step-btn:hover,
.timeslot-next-step-btn:hover {
  background: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 16px rgba(25, 118, 210, 0.4) !important;
}

.date-next-step-btn:active,
.timeslot-next-step-btn:active {
  transform: translateY(0) !important;
  box-shadow: 0 2px 8px rgba(25, 118, 210, 0.3) !important;
}

/* ========================================
   日期按鈕 - 手機版文字放大
   ======================================== */

@media (max-width: 768px) {
  .date-btn {
    min-height: 90px !important;
    padding: 16px 12px !important;
  }
  
  .date-day {
    font-size: 15px !important;
    font-weight: 600 !important;
    margin-bottom: 8px !important;
  }
  
  .date-number {
    font-size: 32px !important;
    font-weight: 800 !important;
    line-height: 1 !important;
  }
  
  .date-month {
    font-size: 14px !important;
    font-weight: 500 !important;
    margin-top: 6px !important;
  }
}

@media (max-width: 480px) {
  .date-btn {
    min-height: 85px !important;
    padding: 14px 10px !important;
  }
  
  .date-day {
    font-size: 14px !important;
  }
  
  .date-number {
    font-size: 28px !important;
  }
  
  .date-month {
    font-size: 13px !important;
  }
}

/* ========================================
   手機版日期限制 - 只顯示 6 個
   ======================================== */

@media (max-width: 768px) {
  /* DISABLED: Conflicts with date-selector-redesign.css */
  /* 隱藏第 7 個之後的日期按鈕 */
  /* .date-selector .date-btn:nth-child(n+7):not(.date-expand-btn) {
    display: none !important;
  } */
  
  /* 當展開時顯示所有日期 */
  /* .date-selector.expanded .date-btn {
    display: flex !important;
  } */
  
  /* 展開按鈕樣式 */
  .date-expand-btn {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 16px 12px !important;
    background: #f8f9fa !important;
    border: 2px solid #e9ecef !important;
    border-radius: 12px !important;
    cursor: pointer !important;
    transition: all 0.25s ease !important;
    min-height: 90px !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    color: #1976d2 !important;
    white-space: nowrap !important;
  }
  
  .date-expand-btn:hover {
    background: white !important;
    border-color: #1976d2 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.15) !important;
  }
  
  .date-expand-btn .expand-icon {
    margin-top: 6px !important;
    font-size: 18px !important;
    transition: transform 0.3s ease !important;
  }
  
  .date-expand-btn.expanded .expand-icon {
    transform: rotate(180deg) !important;
  }
  
  /* 已移除：不再強制指定展開按鈕位置，由 JavaScript 控制 */
  /* .date-selector:not(.expanded) .date-expand-btn {
    order: 6 !important;
  } */
  
  /* DISABLED: 展開後應該顯示「收起日期」按鈕，不應該隱藏 */
  /* .date-selector.expanded .date-expand-btn {
    display: none !important;
  } */
}

/* 桌面版不顯示展開按鈕 */
@media (min-width: 769px) {
  .date-expand-btn {
    display: none !important;
  }
}

/* ========================================
   下一步按鈕 - 移動端優化
   ======================================== */

@media (max-width: 768px) {
  .date-next-step-container,
  .timeslot-next-step-container {
    margin-top: 20px !important;
    padding: 0 !important;
  }
  
  .date-next-step-btn,
  .timeslot-next-step-btn {
    width: 100% !important;
    min-width: auto !important;
    padding: 16px 24px !important;
    font-size: 16px !important;
    white-space: nowrap !important;
  }
}

@media (max-width: 480px) {
  .date-next-step-btn,
  .timeslot-next-step-btn {
    padding: 14px 20px !important;
    font-size: 15px !important;
  }
}

/* ========================================
   統一按鈕形狀
   ======================================== */

/* 確保所有按鈕使用統一的圓角 */
.date-btn,
.time-slot-btn,
.date-next-step-btn,
.timeslot-next-step-btn,
.date-expand-btn,
.clear-selection-btn {
  border-radius: 12px !important;
}

/* ========================================
   可訪問性
   ======================================== */

.date-next-step-btn:focus-visible,
.timeslot-next-step-btn:focus-visible,
.date-expand-btn:focus-visible {
  outline: 3px solid #1976d2 !important;
  outline-offset: 2px !important;
}

@media (prefers-reduced-motion: reduce) {
  .date-next-step-btn,
  .timeslot-next-step-btn,
  .date-expand-btn {
    transition: none !important;
  }
  
  .date-next-step-btn:hover,
  .timeslot-next-step-btn:hover,
  .date-expand-btn:hover {
    transform: none !important;
  }
  
  .date-expand-btn .expand-icon {
    transition: none !important;
  }
}

/* ========================================
   日期選擇器網格 - 手機版
   ======================================== */

@media (max-width: 768px) {
  .date-selector {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }
  
  /* 2x4 網格：7 個日期 + 1 個展開按鈕，讓 grid 自然排列 */
  
  /* 展開按鈕的樣式對齊 */
  .date-selector:not(.expanded) .date-expand-btn {
    align-self: stretch !important;  /* 伸展以匹配格子高度 */
    justify-content: flex-start !important;  /* 內容靠上對齊 */
    margin: 0 !important;  /* 移除所有 margin */
    padding: 16px 12px !important;  /* 與日期按鈕一致的 padding */
  }
}

@media (max-width: 480px) {
  .date-selector {
    gap: 8px !important;
  }
}

/* ========================================
   下一步按鈕文字和圖標
   ======================================== */

.date-next-step-btn,
.timeslot-next-step-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;
}

.date-next-step-btn svg,
.timeslot-next-step-btn svg,
.date-next-step-btn .arrow-icon,
.timeslot-next-step-btn .arrow-icon {
  width: 20px !important;
  height: 20px !important;
  flex-shrink: 0 !important;
  transition: transform 0.3s ease !important;
}

.date-next-step-btn:hover svg,
.timeslot-next-step-btn:hover svg,
.date-next-step-btn:hover .arrow-icon,
.timeslot-next-step-btn:hover .arrow-icon {
  transform: translateX(4px) !important;
}

/* ========================================
   展開動畫
   ======================================== */

@keyframes expandIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.date-selector.expanded .date-btn:nth-child(n+7) {
  animation: expandIn 0.3s ease forwards !important;
}

/* 為每個新顯示的日期添加延遲 */
.date-selector.expanded .date-btn:nth-child(7) {
  animation-delay: 0.05s !important;
}

.date-selector.expanded .date-btn:nth-child(8) {
  animation-delay: 0.1s !important;
}

.date-selector.expanded .date-btn:nth-child(9) {
  animation-delay: 0.15s !important;
}

.date-selector.expanded .date-btn:nth-child(10) {
  animation-delay: 0.2s !important;
}

.date-selector.expanded .date-btn:nth-child(11) {
  animation-delay: 0.25s !important;
}

.date-selector.expanded .date-btn:nth-child(12) {
  animation-delay: 0.3s !important;
}