/* ════════════════════════════════════════════════════════════
   TNPT 台南市物理治療師公會  ·  主視覺樣式
   設計方向：專業醫療 × 台灣在地 × 清晰易讀
   ════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700&family=Noto+Serif+TC:wght@400;700&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

/* ── CSS 變數 ──────────────────────────────────────────────── */
:root {
  /* 主色：深青藍（專業感） */
  --color-primary:     #1a4f72;
  --color-primary-dk:  #123654;
  --color-primary-lt:  #e8f3f9;

  /* 輔色：溫暖橘（活力、行動力） */
  --color-accent:      #e07b39;
  --color-accent-lt:   #fdf0e6;

  /* 中性色 */
  --color-text:        #1e2a35;
  --color-text-muted:  #6b7c8d;
  --color-border:      #dce4ec;
  --color-bg:          #f5f8fa;
  --color-white:       #ffffff;

  /* 狀態色 */
  --color-success:     #2a7d4f;
  --color-warning:     #c8922a;
  --color-danger:      #c0392b;
  --color-info:        #1a6ea8;

  /* 字型 */
  --font-sans:   'DM Sans', 'Noto Sans TC', sans-serif;
  --font-serif:  'Noto Serif TC', serif;

  /* 間距 & 圓角 */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   16px;
  --shadow-sm:   0 1px 4px rgba(0,0,0,.08);
  --shadow-md:   0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:   0 8px 32px rgba(0,0,0,.12);

  /* 動畫 */
  --ease-out:    cubic-bezier(.22,.68,0,1.2);
  --transition:  .22s var(--ease-out);
}

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; display: block; }

/* ── 通用工具 ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: 72px; }
.section-sm { padding-block: 48px; }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-primary);
  margin-bottom: 8px;
}
.section-header p {
  color: var(--color-text-muted);
  font-size: .95rem;
}
.section-header .divider {
  width: 40px; height: 3px;
  background: var(--color-accent);
  margin: 12px auto 0;
  border-radius: 2px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 500;
  line-height: 1.6;
}
.badge-primary { background: var(--color-primary-lt); color: var(--color-primary); }
.badge-accent   { background: var(--color-accent-lt);  color: var(--color-accent);  }
.badge-success  { background: #e6f4ee; color: var(--color-success); }
.badge-coorg    { background: #f0eaff; color: #7c3aed; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1.4;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dk);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26,79,114,.3);
}
.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  filter: brightness(1.1);
  color: #fff;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary-lt);
  color: var(--color-primary);
}
.btn-sm { padding: 6px 14px; font-size: .82rem; }
.btn-lg { padding: 13px 30px; font-size: 1rem; }

/* ── 導覽列 ─────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.navbar-brand .brand-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  object-fit: contain;
}
.navbar-brand .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}
.navbar-brand .brand-zh {
  font-size: .88rem;
  font-weight: 700;
  color: var(--color-primary);
}
.navbar-brand .brand-en {
  font-size: .68rem;
  color: var(--color-text-muted);
  letter-spacing: .04em;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.nav-item { position: relative; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: all var(--transition);
}
.nav-link:hover,
.nav-link.active { color: var(--color-primary); background: var(--color-primary-lt); }
.nav-link .nav-arrow {
  font-size: .65rem;
  transition: transform var(--transition);
}
.nav-item:hover .nav-arrow { transform: rotate(180deg); }

/* 下拉選單 */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 160px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 6px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all var(--transition);
  z-index: 100;
}
.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 8px 12px;
  font-size: .84rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.dropdown-menu a:hover {
  background: var(--color-primary-lt);
  color: var(--color-primary);
}

/* 登入按鈕 */
.nav-login {
  margin-left: 8px;
}

/* 漢堡選單 */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.navbar-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dk) 0%, var(--color-primary) 60%, #2471a3 100%);
  color: #fff;
  padding-block: 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content { position: relative; z-index: 1; max-width: 640px; }
.hero-label {
  display: inline-block;
  background: rgba(255,255,255,.15);
  color: rgba(255,255,255,.9);
  font-size: .78rem;
  letter-spacing: .12em;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 20px;
  font-weight: 500;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  line-height: 1.3;
  margin-bottom: 16px;
}
.hero p {
  font-size: 1.05rem;
  color: rgba(255,255,255,.82);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── 快速導覽卡片 ─────────────────────────────────────────────── */
.quick-nav {
  background: var(--color-white);
  padding-block: 56px;
  border-bottom: 1px solid var(--color-border);
}
.quick-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}
.quick-nav-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 24px 16px;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--transition);
  text-align: center;
}
.quick-nav-card:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-lt);
  color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.quick-nav-card .icon {
  width: 48px; height: 48px;
  background: var(--color-primary-lt);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  transition: all var(--transition);
}
.quick-nav-card:hover .icon {
  background: var(--color-primary);
  color: #fff;
}
.quick-nav-card span {
  font-size: .85rem;
  font-weight: 600;
}

/* ── 消息 / 課程 卡片 ─────────────────────────────────────────── */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-primary);
}
.card-body { padding: 20px; }
.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: .78rem;
  color: var(--color-text-muted);
}
.card-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: currentColor; }
.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-summary {
  font-size: .85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  gap: 8px;
  flex-wrap: wrap;
}

/* 課程卡片特規 */
.ce-card-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.ce-info-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: .83rem;
  color: var(--color-text-muted);
}
.ce-info-row .label {
  flex-shrink: 0;
  color: var(--color-text);
  font-weight: 500;
  min-width: 48px;
}

/* ── 列表頁 ─────────────────────────────────────────────────── */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2980b9 100%);
  color: #fff;
  padding-block: 48px;
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  margin-bottom: 6px;
}
.page-hero p {
  font-size: .9rem;
  opacity: .8;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .8rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,.85); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: .5; }

/* Category Tabs */
.category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.tab-btn {
  padding: 7px 18px;
  border-radius: 20px;
  border: 1.5px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text-muted);
  font-size: .84rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.tab-btn:hover,
.tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.tab-btn-sm {
  padding: 4px 12px;
  font-size: .78rem;
}

/* ── 關於我們 ────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  color: var(--color-primary);
  margin-bottom: 16px;
}
.about-text p { color: var(--color-text-muted); margin-bottom: 12px; }

/* ── 公告欄 ─────────────────────────────────────────────────── */
.notice-list { list-style: none; }
.notice-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}
.notice-item:last-child { border-bottom: none; }
.notice-date {
  flex-shrink: 0;
  width: 52px;
  text-align: center;
  background: var(--color-primary-lt);
  border-radius: var(--radius-sm);
  padding: 6px 4px;
}
.notice-date .month { font-size: .7rem; color: var(--color-primary); }
.notice-date .day   { font-size: 1.3rem; font-weight: 700; color: var(--color-primary); line-height: 1; }
.notice-title { font-size: .9rem; font-weight: 500; color: var(--color-text); line-height: 1.5; }
.notice-title a:hover { color: var(--color-accent); }

/* ── 下載卡片 ────────────────────────────────────────────────── */
.download-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.download-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.download-card .file-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  background: var(--color-primary-lt);
  color: var(--color-primary);
}
.download-card .file-info { flex: 1; }
.download-card .file-name {
  font-size: .9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}
.download-card .file-meta {
  font-size: .75rem;
  color: var(--color-text-muted);
}

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-primary-dk);
  color: rgba(255,255,255,.8);
  padding-block: 56px 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: #fff;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: .82rem;
  line-height: 1.8;
  color: rgba(255,255,255,.6);
}
.footer-col h4 {
  font-size: .85rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: .04em;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  font-size: .82rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .78rem;
  color: rgba(255,255,255,.4);
  flex-wrap: wrap;
  gap: 8px;
}

/* ── 管理後台 ────────────────────────────────────────────────── */
.admin-layout {
  display: flex;
  min-height: 100vh;
}
.admin-sidebar {
  width: 240px;
  background: var(--color-primary-dk);
  color: #fff;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.admin-sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.admin-sidebar-header h2 {
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.admin-sidebar-header p {
  font-size: .72rem;
  opacity: .6;
  margin-top: 2px;
}
.admin-nav { padding: 16px 12px; flex: 1; }
.admin-nav-section {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255,255,255,.4);
  padding: 12px 8px 6px;
}
.admin-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: .84rem;
  color: rgba(255,255,255,.75);
  transition: all var(--transition);
  margin-bottom: 2px;
}
.admin-nav a:hover,
.admin-nav a.active {
  background: rgba(255,255,255,.12);
  color: #fff;
}
.admin-content {
  flex: 1;
  overflow-x: hidden;
  background: var(--color-bg);
}
.admin-topbar {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 0 28px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.admin-topbar h1 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
}
.admin-main { padding: 28px; }

/* 後台統計卡片 */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.stat-card .stat-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.stat-card .stat-icon.blue   { background: var(--color-primary-lt); color: var(--color-primary); }
.stat-card .stat-icon.orange { background: var(--color-accent-lt);  color: var(--color-accent);  }
.stat-card .stat-icon.green  { background: #e6f4ee; color: var(--color-success); }
.stat-card .stat-value {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}
.stat-card .stat-label {
  font-size: .78rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* 後台資料表格 */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .87rem;
}
.data-table th {
  text-align: left;
  padding: 10px 14px;
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--color-border);
}
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
  color: var(--color-text);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--color-bg); }

/* 後台表單 */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-label .required { color: var(--color-danger); margin-left: 2px; }
.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: .9rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-lt); }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236b7c8d' d='M6 8L0 0h12z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }
.form-hint { font-size: .78rem; color: var(--color-text-muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Alert */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: .87rem;
  margin-bottom: 20px;
  border: 1px solid transparent;
}
.alert-success { background: #e6f4ee; color: var(--color-success); border-color: #b7dfc8; }
.alert-danger   { background: #fceae9; color: var(--color-danger);  border-color: #f0b8b5; }
.alert-info     { background: var(--color-primary-lt); color: var(--color-primary); border-color: #b8d8ed; }

/* Card 容器（後台用） */
.admin-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 24px;
}
.admin-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}
.admin-card-header h3 {
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-text);
}
.admin-card-body { padding: 20px; }

/* ── 登入頁 ─────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-dk) 0%, var(--color-primary) 100%);
  padding: 24px;
}
.login-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}
.login-card .login-logo {
  text-align: center;
  margin-bottom: 28px;
}
.login-card .login-logo .logo-box {
  width: 64px; height: 64px;
  border-radius: var(--radius-md);
  display: block;
  margin: 0 auto 12px;
  object-fit: contain;
}
.login-card h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  text-align: center;
  color: var(--color-text);
}
.login-card p {
  text-align: center;
  font-size: .82rem;
  color: var(--color-text-muted);
  margin-top: 4px;
  margin-bottom: 28px;
}

/* ── Mobile RWD ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .navbar-nav  { display: none; }
  .navbar-toggle { display: flex; }

  .navbar-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 16px;
    gap: 4px;
    box-shadow: var(--shadow-md);
    z-index: 999;
  }
  .nav-item { width: 100%; }
  .nav-link  { width: 100%; padding: 10px 14px; }
  .dropdown-menu {
    position: static;
    opacity: 1; visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--color-bg);
    margin: 4px 0 4px 16px;
    padding: 4px;
    display: none;
  }
  .nav-item.open .dropdown-menu { display: block; }

  .hero { padding-block: 56px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid  { grid-template-columns: 1fr; gap: 28px; }
  .form-row    { grid-template-columns: 1fr; }

  .admin-sidebar {
    position: fixed; left: -240px; top: 0; bottom: 0; z-index: 200;
    transition: left .28s cubic-bezier(.4,0,.2,1);
    box-shadow: none;
  }
  .admin-sidebar.open {
    left: 0;
    box-shadow: 4px 0 24px rgba(0,0,0,.18);
  }
  .admin-layout { display: block; }
  .admin-content { margin-left: 0; }

}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .quick-nav-grid { grid-template-columns: repeat(3, 1fr); }
  .stat-cards { grid-template-columns: 1fr 1fr; }
}

/* ── 前台頁面 Sidebar — 手機 Drawer ─────────────────────────── */

/* 桌面版：什麼都不用加，sidebar 原本的 inline style 已完整 */

/* 手機版 overlay backdrop */
#pageSidebarBackdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 298;
}
#pageSidebarBackdrop.active { display: block; }

/* 浮動「目錄」按鈕 — 桌面隱藏 */
#pageSidebarToggle {
  display: none !important;
}

@media (max-width: 768px) {
  /* Grid 左欄收合，sidebar 不佔流 */
  .page-sidebar-grid {
    grid-template-columns: 1fr !important;
  }

  /* Sidebar 本身變成 fixed drawer，預設推出畫面左側 */
  #pageSidebar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    bottom: 0 !important;
    width: 240px !important;
    z-index: 299 !important;
    border-radius: 0 !important;
    overflow-y: auto !important;
    transform: translateX(-100%) !important;
    transition: transform .25s cubic-bezier(.4,0,.2,1) !important;
    box-shadow: none !important;
  }
  #pageSidebar.open {
    transform: translateX(0) !important;
    box-shadow: 4px 0 20px rgba(0,0,0,.15) !important;
  }

  /* 浮動「目錄」按鈕 */
  #pageSidebarToggle {
    display: flex;
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 297;
    writing-mode: vertical-rl;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 14px 8px;
    background: var(--color-primary);
    color: #fff;
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .08em;
    border: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    cursor: pointer;
    box-shadow: -2px 0 8px rgba(0,0,0,.12);
    transition: background .2s;
    font-family: var(--font-sans);
    line-height: 1;
  }
  #pageSidebarToggle:hover {
    background: var(--color-primary-dk);
  }
}

/* ── 動畫 ────────────────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeInUp .5s var(--ease-out) both;
}
.animate-in-delay-1 { animation-delay: .1s; }
.animate-in-delay-2 { animation-delay: .2s; }
.animate-in-delay-3 { animation-delay: .3s; }