/* ============================================================
   隤脰”?亥岷蝟餌絞 - 銝餅見撘?   style.css
   ============================================================ */

/* ?€?€ Google Font ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700&display=swap');

/* ?€?€ CSS 霈 ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
:root {
    /* 淺色主題 (預設) - 商務簡潔 */
    --app-page-bg: #f5f7fa;
    --card-bg: #ffffff;
    --card-bdr: #e4e7ed;
    --accent: #2563eb;
    --accent-dim: rgba(37, 99, 235, 0.1);
    --accent2: #1e50bc;
    --text: #303133;
    --text-primary: #111827;
    --text-dim: #606266;
    --danger: #ef4444;
    --success: #22c55e;
    --warn: #eab308;
    --card-radius: 8px;
    --transition: 0.3s ease;
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.04);
}

html.dark {
    /* 深色主題 - 工業深色 */
    --app-page-bg: #141414;
    --card-bg: #1d1e1f;
    --card-bdr: #414243;
    --accent: #409eff;
    --accent-dim: rgba(64, 158, 255, 0.15);
    --accent2: #337ecc;
    --text: #e5eaf3;
    --text-primary: #f8f9fa;
    --text-dim: #a3a6ad;
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.2);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Noto Sans TC', sans-serif;
    min-height: 100vh;
    background-color: var(--app-page-bg);
    color: var(--text);
    overflow-x: hidden;
    transition: background-color var(--transition), color var(--transition);
}

/* ?€?€ ?餌??∠? ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-bdr);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-md);
    transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

/* ?€?€ 閬?摰孵 ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.view {
    position: relative;
    z-index: 1;
    display: none;
    opacity: 0;
    transition: opacity var(--transition);
}
/*
 * 作用中的 view 直接設為完全不透明（opacity: 1）。
 * 原本這裡用的是 animation ... forwards，forwards 會讓動畫永久停留在
 * 生效狀態，導致容器被瀏覽器提升成獨立合成圖層，使子層的原生 <select>
 * 下拉清單被錯誤定位到畫面右上角（看似空白、實際有內容）。改用靜態
 * opacity 後，祖先元素不再是持續動畫狀態，下拉清單即可正常對齊。
 */
.view.active {
    display: flex;
    opacity: 1;
}
.view.result-active {
    display: block;
    opacity: 1;
}

/* ?€?€ ?餃 & ?亥岷閬? (?蝵桐葉) ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
#startView, #loginView, #queryView {
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem 1.25rem;
}
#startView {
    flex-direction: column;
    gap: 0.9rem;
}

/* ?€?€ ?餃?∠? ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.login-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem 2rem;
}

.start-card {
    width: 100%;
    max-width: 620px;
    padding: 2.5rem 2rem;
}

.login-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}
.login-logo .logo-icon {
    width: 64px; height: 64px;
    background: var(--accent);
    color: #ffffff;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 0.75rem;
    box-shadow: 0 4px 12px var(--accent-dim);
}
.login-logo h1 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
}
.login-logo p {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-top: 0.2rem;
}

/* ?€?€ 銵典?辣 ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.form-group { margin-bottom: 1.1rem; }
.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-dim);
    margin-bottom: 0.4rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.form-control {
    width: 100%;
    padding: 0.65rem 0.9rem;
    background: var(--card-bg);
    border: 1px solid var(--card-bdr);
    border-radius: 0.6rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--accent);
    background: var(--card-bg);
    box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-control::placeholder { color: var(--text-dim); }
.form-control option { background: var(--card-bg); color: var(--text-primary); }

/* ── 教師姓名智慧篩選下拉（依師查科目分頁用）─────────────────── */
.autocomplete-wrap { position: relative; }
.autocomplete-list {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    max-height: 240px;
    overflow-y: auto;
    background: var(--card-bg);
    border: 1px solid var(--card-bdr);
    border-radius: 0.6rem;
    box-shadow: var(--shadow-md);
    z-index: 50;
}
.autocomplete-list.show { display: block; }
.autocomplete-item {
    padding: 0.55rem 0.9rem;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.95rem;
}
.autocomplete-item:hover,
.autocomplete-item.highlighted { background: var(--accent-dim); }
.autocomplete-item mark {
    background: transparent;
    color: var(--accent);
    font-weight: 700;
}
.autocomplete-empty {
    padding: 0.55rem 0.9rem;
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* ?€?€ ?? ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.4rem;
    border: none;
    border-radius: 0.6rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    background: var(--accent2);
}

.btn-success {
    background: var(--success);
    color: #fff;
}
.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    background: #15803d; /* slightly darker green for hover */
}

.btn-ghost {
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--card-bdr);
}
.btn-ghost:hover {
    background: var(--card-bdr);
    color: var(--text);
    border-color: var(--card-bdr);
}

.btn-print {
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid rgba(37, 99, 235, 0.2);
}
html.dark .btn-print {
    border-color: rgba(64, 158, 255, 0.3);
}
.btn-print:hover {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    transform: translateY(-1px);
}

/* ── 主題切換按鈕圖示控制 (SVG 專用) ───────────────────────────── */
html.dark .sun-icon {
    display: inline-block !important;
}
html.dark .moon-icon {
    display: none !important;
}
html:not(.dark) .sun-icon {
    display: none !important;
}
html:not(.dark) .moon-icon {
    display: inline-block !important;
}

/* ── 純圖示按鈕 (Icon-only Buttons) ───────────────────────────── */
.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 1rem;
    flex-shrink: 0;
}
.btn-icon svg {
    margin-right: 0 !important;
}

.btn-block { width: 100%; }

/* ── 首頁教學與匯入區 ───────────────────────────────────────── */
.guide-box {
    background: var(--app-page-bg);
    border: 1px solid var(--card-bdr);
    border-radius: 0.75rem;
    padding: 1rem;
    margin-bottom: 1rem;
}
.guide-box h2 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
}
.guide-steps {
    padding-left: 1.25rem;
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.7;
}
.guide-steps li + li {
    margin-top: 0.25rem;
}
.privacy-note {
    margin-top: 0.75rem;
    color: var(--accent);
    font-size: 0.88rem;
    line-height: 1.6;
}
.start-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

/* ── 原作者致謝 footer ─────────────────────────────────────── */
.site-footer {
    padding: 0 1rem;
    color: var(--text-dim);
    font-size: 0.78rem;
    line-height: 1.6;
    text-align: center;
    pointer-events: none;
}
.site-footer a {
    color: var(--accent);
    text-decoration: none;
    pointer-events: auto;
}
.site-footer a:hover {
    text-decoration: underline;
}

/* ?€?€ Spinner ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.spinner {
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: none;
}
.spinner.show { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ?€?€ 霅血?閮 ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.alert {
    padding: 0.7rem 1rem;
    border-radius: 0.6rem;
    font-size: 0.875rem;
    margin-top: 0.75rem;
    display: none;
}
.alert.show { display: block; }
.alert-danger  { background: rgba(248,113,113,0.12); border: 1px solid rgba(248,113,113,0.3); color: var(--danger); }
.alert-warning { background: rgba(251,191,36,0.12);  border: 1px solid rgba(251,191,36,0.3);  color: var(--warn);   }
.alert-info    { background: rgba(56,189,248,0.12);  border: 1px solid rgba(56,189,248,0.3);  color: var(--accent); }

/* ── 提示模板彈窗 ───────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.45);
}
.modal-overlay.show {
    display: flex;
}
.template-modal-card {
    width: min(760px, 100%);
    max-height: min(90vh, 760px);
    padding: 1.25rem;
    overflow-y: auto;
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}
.modal-header h2 {
    color: var(--text-primary);
    font-size: 1.2rem;
}
.modal-content h3 {
    color: var(--text-primary);
    font-size: 0.98rem;
    margin: 1rem 0 0.5rem;
}
.prompt-template {
    width: 100%;
    min-height: 340px;
    padding: 0.85rem;
    border: 1px solid var(--card-bdr);
    border-radius: 0.6rem;
    background: var(--app-page-bg);
    color: var(--text-primary);
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.88rem;
    line-height: 1.55;
    resize: vertical;
    outline: none;
}
.copy-status {
    min-height: 1.4rem;
    margin-top: 0.65rem;
    color: var(--accent);
    font-size: 0.88rem;
}

/* ── CSV 匯入資料品質檢查彈窗 ─────────────────────────────── */
.import-validation-modal-card {
    width: min(960px, 100%);
    max-height: 90vh;
    padding: 1.25rem;
    overflow: hidden;
}
.import-validation-summary {
    margin: 0 0 1rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.65;
}
.import-issue-table-wrapper {
    max-height: 52vh;
    overflow: auto;
    border: 1px solid var(--card-bdr);
    border-radius: 0.5rem;
}
.import-issue-table {
    width: 100%;
    min-width: 720px;
    border-collapse: collapse;
    color: var(--text-primary);
    font-size: 0.84rem;
}
.import-issue-table th,
.import-issue-table td {
    padding: 0.65rem 0.75rem;
    border-bottom: 1px solid var(--card-bdr);
    text-align: left;
    vertical-align: top;
}
.import-issue-table th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--app-page-bg);
    color: var(--text-secondary);
    font-weight: 600;
    white-space: nowrap;
}
.import-issue-table tbody tr:last-child td {
    border-bottom: 0;
}
.import-validation-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1rem;
}

/* ?€?€ ??蝺??€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
    color: var(--text-dim);
    font-size: 0.8rem;
}
.divider::before, .divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--card-bdr);
}

/* ?€?€ ?亥岷?∠? ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.query-card {
    width: 100%;
    max-width: 480px;
    padding: 2.5rem 2rem;
}
.query-card h2 {
    font-size: 1.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text);
}

/* ?€?€ 蝯?閬? ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
#resultView {
    padding: 1.5rem 1rem 3rem;
}
.result-inner {
    max-width: 1100px;
    margin: 0 auto;
}

/* ── 操作列 (統一左側與課表對齊) ────────────────────────────────── */
.action-bar {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}
.action-bar-left { display: flex; align-items: center; gap: 0.75rem; }
.action-bar-right { display: flex; gap: 0.5rem; }

/* ?€?€ 隤脰”璅? ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.schedule-title {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--accent);
}

/* ?€?€ 隤脰”銵冽 ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.schedule-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    text-align: center;
}
.schedule-table th, .schedule-table td {
    border: 1px solid var(--card-bdr);
    padding: 0.6rem 0.3rem;
    vertical-align: middle;
}
.schedule-table thead th {
    background: var(--app-page-bg);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 700;
}
.th-period {
    width: 80px;
}
.schedule-table tbody tr:nth-child(even) {
    background: rgba(0, 0, 0, 0.02);
}
html.dark .schedule-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}
.schedule-table tbody tr:hover {
    background: var(--accent-dim);
}

/* 節次cell */
.td-period {
    background: rgba(0, 0, 0, 0.02);
    color: var(--text-dim);
    white-space: nowrap;
}
html.dark .td-period {
    background: rgba(255, 255, 255, 0.02);
}
.period-num {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}
.period-time {
    font-size: 0.75rem;
    line-height: 1.3;
    margin-top: 0.2rem;
}

/* ── 深淺色切換按鈕 ─────────────────────────────────────────── */
.theme-toggle-btn {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
    padding: 0;
    border-radius: 50%;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: var(--card-bg);
    border: 1px solid var(--card-bdr);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: transform 0.2s ease, background-color var(--transition), border-color var(--transition);
}
.theme-toggle-btn:hover {
    transform: scale(1.08);
}

/* ── 課表 Cell 整理 ──────────────────────────────────────────── */
.td-cell {
    padding: 0.6rem 0.4rem;
    min-height: 72px;
    height: auto;
    vertical-align: top;
    transition: background-color 0.15s ease;
}
.td-cell:hover {
    background-color: var(--accent-dim) !important;
}

.cell-subject {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.cell-items-container {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: center;
    align-items: center;
}

.cell-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px 9px;
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid rgba(37, 99, 235, 0.18);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    user-select: none;
    line-height: 1.2;
}

html.dark .cell-link {
    border-color: rgba(64, 158, 255, 0.25);
}

.cell-link:hover {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--accent-dim);
}

/* 蝛箏? */
.td-empty {
    background: transparent;
}

/* ?€?€ Loading Overlay ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
#loadingOverlay {
    position: fixed;
    inset: 0;
    background: var(--app-page-bg);
    opacity: 0.95;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    z-index: 100;
    display: none;
}
#loadingOverlay.show { display: flex; }
#loadingOverlay .big-spinner {
    width: 48px; height: 48px;
    border: 3px solid rgba(56,189,248,0.2);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
#loadingOverlay p {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* ?€?€ ???內 chip (autocomplete) ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.5rem;
    min-height: 0;
}
.chip {
    font-size: 0.78rem;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid rgba(56,189,248,0.25);
    cursor: pointer;
    transition: all var(--transition);
}
.chip:hover {
    background: rgba(56,189,248,0.3);
    transform: translateY(-1px);
}

/* ?€?€ ?餃?? ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.logout-btn {
    font-size: 0.78rem;
    padding: 0.3rem 0.7rem;
    border-radius: 0.4rem;
}

/* ?€?€ ??撌亙憿??€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.hidden { display: none !important; }

/* ?€?€ ?亥岷璅????€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.query-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}
.query-header h2 { margin: 0; font-size: 1.2rem; }

.semester-badge {
    font-size: 0.72rem;
    color: var(--accent);
    background: var(--accent-dim);
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    margin-top: 0.3rem;
    display: inline-block;
}

/* ?€?€ ????Tab ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.tab-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    background: var(--card-bg);
    border: 1px solid var(--card-bdr);
    border-radius: 0.6rem;
    padding: 0.3rem;
}
.tab-btn {
    flex: 1;
    padding: 0.55rem 0.5rem;
    border: none;
    border-radius: 0.45rem;
    background: transparent;
    color: var(--text-dim);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}
.tab-btn:hover { color: var(--text); background: var(--app-page-bg); }
.tab-btn.active {
    background: rgba(56,189,248,0.15);
    color: var(--accent);
    box-shadow: 0 2px 8px rgba(56,189,248,0.15);
}
.tab-panel { }

/* ?€?€ 撟渡??詨??€憛??€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.grade-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
}
.grade-label {
    flex-shrink: 0;
    width: 4rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
    padding: 0.25rem 0.4rem;
    border-radius: 0.4rem;
}
.grade-7  { background: rgba(56,189,248,0.15);  color: #38bdf8; }
.grade-8  { background: rgba(129,140,248,0.15); color: #818cf8; }
.grade-9  { background: rgba(74,222,128,0.15);  color: #4ade80; }
.grade-sp { background: rgba(251,191,36,0.15);  color: #fbbf24; }
.grade-select { flex: 1; }

/* ── 響應式設計 (RWD) ─────────────────────────────────────────── */
/* 課表外層容器 */
#scheduleTableContainer {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-top: 0.5rem;
    background: transparent;
    border: none;
    box-shadow: none;
}

/* 1. 11吋 iPad / 平板直向 (寬度 601px ~ 960px，例如 iPad 11" 834px) */
@media (min-width: 601px) and (max-width: 960px) {
    .login-card, .query-card, .start-card {
        max-width: 520px;
        padding: 2.25rem 1.75rem;
    }
    .result-inner {
        max-width: 100%;
        padding: 0 0.5rem;
    }
    .schedule-table {
        width: 100%;
        min-width: 100%;
        table-layout: fixed;
    }
    .th-period {
        width: 75px;
    }
    .td-cell {
        padding: 0.5rem 0.25rem;
        min-height: 68px;
    }
    .cell-subject {
        font-size: 0.9rem;
    }
    .cell-link {
        font-size: 0.78rem;
        padding: 2px 7px;
    }
}

/* 2. 11吋 iPad / 平板橫向 (寬度 961px ~ 1240px，例如 iPad 11" 1194px) */
@media (min-width: 961px) and (max-width: 1240px) {
    .result-inner {
        max-width: 1140px;
    }
    .schedule-table {
        width: 100%;
        table-layout: fixed;
    }
}

/* 3. 手機直向 (如 Samsung S26+ 寬度 380px~440px) */
@media (max-width: 600px) {
    .theme-toggle-btn {
        top: 0.75rem;
        right: 0.75rem;
        width: 38px;
        height: 38px;
        font-size: 1.1rem;
    }
    #startView, #loginView, #queryView {
        padding: 1.5rem 0.75rem;
    }
    .login-card, .query-card, .start-card {
        padding: 1.75rem 1rem;
        border-radius: 12px;
    }
    .guide-steps {
        font-size: 0.86rem;
    }
    .template-modal-card {
        max-height: 92vh;
        padding: 1rem;
    }
    .import-validation-modal-card {
        max-height: 92vh;
        padding: 1rem;
    }
    .import-issue-table-wrapper {
        max-height: 48vh;
    }
    .import-validation-actions {
        flex-direction: column;
    }
    .import-validation-actions .btn {
        width: 100%;
    }
    .prompt-template {
        min-height: 300px;
        font-size: 0.8rem;
    }
    .start-actions {
        grid-template-columns: 1fr;
    }
    .site-footer {
        padding: 0 1rem 1rem;
        font-size: 0.72rem;
    }
    .login-logo h1 {
        font-size: 1.25rem;
    }
    .schedule-title {
        font-size: 1.2rem;
        margin-bottom: 0.75rem;
    }
    .action-bar {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    .action-bar-left, .action-bar-right {
        width: 100%;
        justify-content: space-between;
    }
    .tab-bar {
        gap: 0.25rem;
        padding: 0.25rem;
    }
    .tab-btn {
        padding: 0.5rem 0.2rem;
        font-size: 0.82rem;
    }
    /* 課表在手機上維持可順暢滑動的寬度 */
    .schedule-table {
        min-width: 560px;
    }
    .schedule-table th, .schedule-table td {
        padding: 0.4rem 0.2rem;
    }
    .th-period {
        width: 65px;
    }
    .period-num {
        font-size: 0.78rem;
    }
    .period-time {
        font-size: 0.7rem;
    }
    .td-cell {
        min-height: 60px;
        padding: 0.4rem 0.2rem;
    }
    .cell-subject {
        font-size: 0.82rem;
        margin-bottom: 0.25rem;
    }
    .cell-link {
        font-size: 0.72rem;
        padding: 2px 6px;
        border-radius: 10px;
    }
}

/* 4. 手機橫向 (高度較小 < 500px，如 S26+ 橫拿) */
@media (max-height: 500px) and (orientation: landscape) {
    #startView, #loginView, #queryView {
        min-height: auto;
        padding: 1rem 0.5rem;
    }
    .login-card, .query-card, .start-card {
        padding: 1.25rem 1.5rem;
    }
    .login-logo {
        margin-bottom: 0.75rem;
    }
    .login-logo .logo-icon {
        width: 44px;
        height: 44px;
        font-size: 1.4rem;
        margin-bottom: 0.25rem;
    }
    .theme-toggle-btn {
        top: 0.5rem;
        right: 0.5rem;
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
}

/* ── 列印樣式 ─────────────────────────────────────────── */
@media print {
    body { background: #fff !important; color: #000 !important; }
    body::before { display: none; }
    #startView, #loginView, #queryView, #loadingOverlay { display: none !important; }
    .action-bar { display: none !important; }
    .site-footer { display: none !important; }
    #resultView { display: block !important; opacity: 1 !important; padding: 0 !important; }
    .result-inner { max-width: 100%; }
    .glass-card, .table-wrapper { box-shadow: none !important; background: transparent !important; }

    .schedule-title {
        font-size: 1.4rem;
        -webkit-text-fill-color: #000 !important;
        color: #000 !important;
        background: none !important;
    }

    .timetable { min-width: 0; width: 100%; }
    .timetable thead th {
        background: #f0f0f0 !important;
        color: #000 !important;
        border: 1px solid #aaa !important;
    }
    .timetable tbody th,
    .timetable tbody td {
        border: 1px solid #aaa !important;
        color: #000 !important;
        background: #fff !important;
    }
    .timetable .time-cell { color: #444 !important; }
    .cell-subject { color: #000 !important; font-size: 0.9rem; }
    .cell-link {
        color: #000 !important;
        background: #eee !important;
        font-size: 0.78rem;
    }
    .cell-empty { color: #ccc !important; }
    @page { size: A4 landscape; margin: 0.6in; }
}
/* 課表容器 RWD */
#scheduleTableContainer {
    width: 100%;
    overflow-x: auto;
    margin-top: 1rem;
    border-radius: 0.5rem;
    background: var(--card-bg);
}

/* ════════════════════════════════════════════════════════
   AJ 標準 Footer（/add-footer-only 注入，不含免責聲明）
   規格來源：halfmemo.com blog，2026-07-20 版
   全部用 aj- 前綴與 --aj-footer-* 變數，不影響專案既有樣式
   ════════════════════════════════════════════════════════ */

/* 淺色模式（= blog global.css :root 的同名變數值） */
:root {
    --aj-footer-surface: #ffffff;   /* blog --color-surface */
    --aj-footer-muted:   #888888;   /* blog --color-text-muted */
}

/* 深色模式：本專案用 <html class="dark"> 切換，對應 A 段 */
.dark {
    --aj-footer-surface: #1c1d1f;
    --aj-footer-muted:   #9aa0a6;
}

/* ── Footer ──
   字級基準說明：blog 的根字級是 17px（手機 16px），區塊內尺寸都是 rem。
   這裡把基準字級直接設在區塊上（px），內部改用 em，
   所以不管目標專案根字級是多少，算出來的尺寸都跟 blog 一模一樣。 */
.aj-site-footer {
    width: 100%;            /* 防呆：萬一被巢狀塞進置中版面，也不會被夾成小方塊 */
    margin-top: 4rem;       /* 與上方內容留白（原免責聲明區的同值） */
    background-color: var(--aj-footer-surface);
    font-size: 17px;
    line-height: 1.75;      /* blog body 的行高，footer 繼承同值 */
    font-family: "Segoe UI", "Inter", "PingFang TC", "Microsoft JhengHei",
        "微軟正黑體", "Noto Sans TC", system-ui, -apple-system, sans-serif;
    transition: background-color 0.2s, color 0.2s;
}

/* 品牌色漸層分隔線，貼在 footer 上緣
   （移除免責聲明後，原本掛在 disclaimer 下緣的分隔線改掛在這裡，視覺位置相同） */
.aj-site-footer::before {
    content: "";
    display: block;
    height: 2px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgb(26, 122, 212) 25%,
        rgb(26, 122, 212) 75%,
        transparent 100%
    );
}

.aj-footer-inner {
    max-width: 80em;
    margin: 0 auto;
    padding: 1em 1.5em;
    text-align: center;
}

.aj-footer-copy {
    font-size: 0.875em;     /* 17px × 0.875 = 14.875px，同 blog */
    color: var(--aj-footer-muted);
    margin: 0;
}

/* 版權文字裡「半桶水的AI筆記」連結到 halfmemo.com：
   顏色沿用父層的 muted 色，預設不加底線，滑鼠移過去才顯示底線 */
.aj-footer-link {
    color: inherit;
    text-decoration: none;
}

.aj-footer-link:hover {
    text-decoration: underline;
}

/* ── RWD：blog 在 ≤767px 時根字級 17px → 16px，等比縮小 ── */
@media (max-width: 767px) {
    .aj-site-footer {
        font-size: 16px;
    }
}