/* ============================================
   style.css — 全站共用樣式
   使用 CSS 變數方便統一修改顏色與字型
   ============================================ */

/* 全域變數 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #16a34a;
  --success-light: #f0fdf4;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
}

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

body {
  font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  color: var(--gray-900);
  background: var(--gray-50);
  line-height: 1.6;
}

/* ---- 導覽列 ---- */
.navbar {
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.navbar-brand {
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 6px 12px;
  border-radius: var(--radius);
  color: var(--gray-700);
  text-decoration: none;
  font-size: 14px;
  transition: background .15s;
}
.nav-link:hover { background: var(--gray-100); }
.nav-link.active { background: var(--primary-light); color: var(--primary); font-weight: 500; }

/* ---- 主要內容區 ---- */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}
.container-wide {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* ---- 卡片 ---- */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 1.25rem;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gray-100);
}

/* ---- 表單 ---- */
.form-group { margin-bottom: 1rem; }
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 5px;
}
.form-label .req { color: var(--danger); margin-left: 2px; }
input[type=text], input[type=password], input[type=email],
input[type=tel], input[type=date], input[type=number],
select, textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--gray-900);
  background: #fff;
  transition: border-color .15s;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
textarea { resize: vertical; min-height: 80px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

/* ---- 按鈕 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .15s;
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { opacity: .9; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: .9; }
.btn-outline {
  background: #fff;
  color: var(--gray-700);
  border-color: var(--gray-300);
}
.btn-outline:hover { background: var(--gray-50); }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }

/* ---- 提示訊息 ---- */
.alert {
  padding: .75rem 1rem;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 1rem;
}
.alert-success { background: var(--success-light); color: #166534; border: 1px solid #bbf7d0; }
.alert-danger  { background: var(--danger-light);  color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: var(--warning-light); color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: var(--primary-light); color: #1e40af; border: 1px solid #bfdbfe; }

/* ---- 表格 ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left;
  padding: 9px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200);
  background: var(--gray-50);
  text-transform: uppercase;
  letter-spacing: .5px;
}
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}
tr:hover td { background: var(--gray-50); }

/* ---- 徽章 ---- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}
.badge-blue    { background: #dbeafe; color: #1e40af; }
.badge-green   { background: #dcfce7; color: #166534; }
.badge-red     { background: #fee2e2; color: #991b1b; }
.badge-yellow  { background: #fef9c3; color: #854d0e; }
.badge-gray    { background: var(--gray-100); color: var(--gray-500); }
.badge-purple  { background: #ede9fe; color: #5b21b6; }

/* ---- 統計卡片 ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 1.25rem;
}
.stat-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}
.stat-label { font-size: 12px; color: var(--gray-500); margin-bottom: 4px; }
.stat-value { font-size: 26px; font-weight: 600; color: var(--gray-900); }

/* ---- 管理員側邊欄 ---- */
.admin-layout { display: flex; min-height: calc(100vh - 56px); }
.admin-sidebar {
  width: 200px;
  background: #fff;
  border-right: 1px solid var(--gray-200);
  padding: 1rem 0;
  flex-shrink: 0;
}
.sidebar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 1.25rem;
  color: var(--gray-700);
  text-decoration: none;
  font-size: 14px;
  transition: background .15s;
}
.sidebar-item:hover { background: var(--gray-50); }
.sidebar-item.active { background: var(--primary-light); color: var(--primary); font-weight: 500; }
.sidebar-section {
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-500);
  padding: 12px 1.25rem 4px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.admin-content { flex: 1; padding: 1.5rem; }

/* ---- 頁面標題 ---- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.page-title { font-size: 20px; font-weight: 600; color: var(--gray-900); }

/* ---- 篩選列 ---- */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  align-items: center;
}
.filter-bar input, .filter-bar select {
  width: auto;
  min-width: 140px;
}

/* ---- 其他 ---- */
.text-muted { color: var(--gray-500); font-size: 13px; }
.text-center { text-align: center; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .5rem; }
.d-flex { display: flex; align-items: center; gap: 8px; }
.ms-auto { margin-left: auto; }
hr { border: none; border-top: 1px solid var(--gray-200); margin: 1.25rem 0; }

/* ---- 響應式 ---- */
@media (max-width: 600px) {
  .form-row-2, .form-row-3 { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .navbar-nav .nav-link span { display: none; }
}