/* files/admin_style.css - "Harmony Compact" 主题 (v5 Final & Polished - Complete) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* --- 1. 全局变量和基础样式 --- */
:root {
    --bg-base: #f7f8fc;
    --bg-card: #ffffff;
    --border-color: #e2e5f1;
    --text-primary: #1a202e;
    --text-secondary: #718096;
    --accent-primary: #4a72ff;
    --accent-red: #e53e3e;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
}
* {
    box-sizing: border-box;
}
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    margin: 0;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}

/* --- 2. 登录页面 --- */
.login-container { display: flex; justify-content: center; align-items: center; height: 100vh; padding: 20px;}
.login-form { background: var(--bg-card); padding: 32px; border-radius: 12px; box-shadow: var(--shadow); width: 100%; max-width: 360px; text-align: center; }
.login-form h2 { margin: 0 0 24px 0; font-size: 1.5rem; font-weight: 600; }
.login-form input { width: 100%; padding: 12px 16px; margin-bottom: 16px; border: 1px solid var(--border-color); border-radius: 8px; font-size: 1rem; }
.login-form input:focus { border-color: var(--accent-primary); outline: none; box-shadow: 0 0 0 3px rgba(74, 114, 255, 0.2); }
.login-form button { width: 100%; padding: 12px; background-color: var(--accent-primary); color: white; border: none; border-radius: 8px; cursor: pointer; font-size: 1rem; font-weight: 500; }
.login-form .error { color: var(--accent-red); margin-top: 16px; }

/* --- 3. 管理面板通用布局 --- */
.admin-header { display: flex; justify-content: space-between; align-items: center; background-color: var(--bg-card); padding: 12px 24px; box-shadow: var(--shadow); }
.admin-header h1 { margin: 0; font-size: 1.25rem; }
.admin-header > div { display: flex; align-items: center; gap: 12px; }
.admin-header .button { text-decoration: none; background-color: var(--accent-primary); color: white; padding: 8px 14px; border-radius: 8px; font-weight: 500; display: inline-flex; align-items: center; gap: 8px; transition: opacity 0.2s; }
.admin-header .button.logout-btn { background-color: var(--accent-red); }
.admin-header .button:hover { opacity: 0.85; }
.admin-container { display: flex; gap: 24px; padding: 24px; max-width: 1600px; margin: 0 auto; align-items: flex-start; }
.forms-area { flex: 1; min-width: 400px; display: flex; flex-direction: column; gap: 24px; }
.list-container { flex: 2; }
.card { background-color: var(--bg-card); padding: 24px; border-radius: 12px; box-shadow: var(--shadow); }
.card h2 { margin: 0; font-size: 1.15rem; font-weight: 600; display: flex; align-items: center; gap: 10px; }

/* --- 4. 表单区 --- */
.form-container input[type="text"], .form-container input[type="url"], .form-container select { width: 100%; padding: 10px 14px; margin-bottom: 16px; border: 1px solid var(--border-color); border-radius: 8px; font-size: 0.9rem; }
.form-container label { font-size: 0.9rem; font-weight: 500; display: block; margin-bottom: 8px; color: var(--text-primary); }
.form-container input:focus, .form-container select:focus { border-color: var(--accent-primary); outline: none; box-shadow: 0 0 0 3px rgba(74, 114, 255, 0.2); }
.form-actions { display: flex; gap: 10px; margin-top: 12px; }
.form-actions button, .form-actions .button { flex-grow: 1; padding: 10px; border: none; border-radius: 8px; cursor: pointer; font-size: 0.9rem; font-weight: 500; text-align: center; text-decoration: none; }
.form-actions button { background-color: #16a34a; color: white; }
.form-actions .cancel-btn { background-color: var(--text-secondary); color: white; display: flex; justify-content: center; align-items: center; }
.category-list { margin-top: 24px; border-top: 1px solid var(--border-color); padding-top: 16px; }
.category-list h3 { font-size: 1rem; font-weight: 600; margin: 0 0 10px 0; }
.category-item { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 8px 4px; border-bottom: 1px solid var(--bg-base); font-size: 0.9rem; }
.category-item:last-child { border-bottom: none; }
.item-actions { display: flex; }
.item-actions form { margin: 0; }
.action-btn { background: none; border: none; font-size: 1rem; cursor: pointer; color: var(--text-secondary); padding: 5px; border-radius: 6px; transition: all 0.2s ease; text-decoration: none; display: inline-flex; }
.action-btn i { pointer-events: none; } /* Make icon unclickable */
.action-btn.edit-btn:hover { color: var(--accent-primary); background-color: #f0f5ff; }
.action-btn.delete-btn:hover { color: var(--accent-red); background-color: #fff5f5; }
.sort-arrows { display: flex; flex-direction: column; gap: 4px; }
.sort-arrows a.action-btn { display: flex; align-items: center; justify-content: center; width: 20px; height: 20px; background-color: var(--bg-base); border-radius: 50%; color: var(--text-secondary); text-decoration: none; line-height: 1; font-size: 0.8rem; transition: all 0.2s ease; }
.sort-arrows a.action-btn:hover { background-color: var(--accent-primary); color: white; }
.action-btn-placeholder { height: 20px; width: 20px; }

/* --- 5. 数据导入/导出 --- */
.data-section { padding: 16px 0; }
.data-section:first-of-type { padding-top: 0; }
.data-section h4 { margin: 0 0 4px 0; font-size: 1rem; }
.data-section p { font-size: 0.9rem; color: var(--text-secondary); margin: 0 0 16px 0; }
.export-btn { font-size: 0.9rem; padding: 10px 14px; display: inline-block; background-color: #0ea5e9 !important; color: white; text-decoration: none; border-radius: 8px; }
.data-section-divider { height: 1px; background-color: var(--border-color); margin: 12px 0; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 0.85rem; }
.radio-group label { display: block; margin-bottom: 10px; font-weight: normal; font-size: 0.9rem; }
.data-section button { padding: 10px; font-size: 0.9rem; font-weight: 500; border-radius: 8px; background-color: var(--accent-primary); color: white; border:none; cursor: pointer; width: 100%; }
input[type="file"] { font-size: 0.9rem; }

/* --- 6. 折叠列表 --- */
.card-header-controls { display: flex; justify-content: space-between; align-items: center; padding-bottom: 16px; margin-bottom: 12px; border-bottom: 1px solid var(--border-color); }
.card-header-controls h2 { border: none; padding: 0; margin: 0; }
.list-controls { display: flex; gap: 10px; }
.list-controls button { padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border-color); background-color: var(--bg-base); color: var(--text-secondary); font-weight: 500; cursor: pointer; transition: all 0.2s ease; display: inline-flex; align-items: center; gap: 6px; font-size: 0.85rem; }
.list-controls button:hover { background-color: var(--accent-primary); color: white; border-color: var(--accent-primary); }
.collapsible-list .category-group { border-bottom: 1px solid var(--border-color); }
.collapsible-list .category-group:last-child { border-bottom: none; }
.collapsible-list summary { display: flex; align-items: center; cursor: pointer; padding: 14px 10px; font-weight: 600; font-size: 1rem; list-style: none; transition: background-color 0.2s ease; border-radius: 6px; }
.collapsible-list summary:hover { background-color: var(--bg-base); }
.collapsible-list summary::-webkit-details-marker { display: none; }
.collapsible-list summary:before { content: '\f0da'; font-family: 'Font Awesome 5 Free'; font-weight: 900; margin-right: 12px; transition: transform 0.2s; font-size: 0.8em; }
.collapsible-list details[open] > summary { color: var(--accent-primary); }
.collapsible-list details[open] > summary:before { transform: rotate(90deg); }
.count-badge { background-color: #e2e8f0; color: var(--text-secondary); font-size: 0.8rem; font-weight: 600; padding: 3px 9px; border-radius: 12px; margin-left: auto; transition: all 0.2s ease; }
.collapsible-list details[open] > summary .count-badge { background-color: var(--accent-primary); color: white; }
.bookmark-items-wrapper { padding: 8px 0; }
.bookmark-item { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 10px 10px 10px 0; margin-left: 20px; border-top: 1px solid var(--bg-base); }
.item-info { display: flex; flex-direction: column; overflow: hidden; }
.item-info strong { font-size: 0.9rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item-info small { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* --- 7. 自定义确认模态框 --- */
.modal-backdrop { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(17, 24, 39, 0.6); z-index: 9998; display: flex; justify-content: center; align-items: center; opacity: 0; transition: opacity 0.2s ease-in-out; }
.modal-backdrop:not(.hidden) { opacity: 1; }
.modal-backdrop.hidden { display: none; }
.modal { background: var(--bg-card); padding: 28px 32px; border-radius: 12px; box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); width: 100%; max-width: 420px; transform: scale(0.95); transition: transform 0.2s ease-in-out; }
.modal-backdrop:not(.hidden) .modal { transform: scale(1); }
.modal h3 { margin: 0 0 12px 0; font-size: 1.25rem; font-weight: 600; color: var(--text-primary); }
.modal p { margin: 0 0 24px 0; font-size: 1rem; line-height: 1.6; color: var(--text-secondary); }
.modal-buttons { display: flex; justify-content: flex-end; gap: 12px; }
.modal-btn { padding: 10px 20px; border: none; border-radius: 8px; font-size: 0.95rem; font-weight: 500; cursor: pointer; transition: opacity 0.2s; }
.modal-btn:hover { opacity: 0.85; }
.modal-btn-cancel { background-color: #e2e8f0; color: var(--text-secondary); }
.modal-btn-confirm { background-color: var(--accent-primary); color: white; }
.modal-btn-confirm.confirm-dangerous { background-color: var(--accent-red); }
.modal-btn-confirm.confirm-safe { background-color: var(--accent-primary); }

/* --- 8. Toast 通知 --- */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; align-items: flex-end; }
.toast { display: flex; align-items: center; padding: 14px 20px; margin-top: 12px; border-radius: 8px; box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); color: white; font-size: 0.95rem; font-weight: 500; opacity: 0; animation: toast-fade-in 0.3s ease forwards; min-width: 250px; position: relative; padding-right: 35px; }
.toast.toast-success { background-color: #28a745; }
.toast.toast-error { background-color: var(--accent-red); }
.toast-close { position: absolute; top: 50%; right: 12px; transform: translateY(-50%); background: none; border: none; color: white; opacity: 0.7; font-size: 1.2rem; cursor: pointer; transition: opacity 0.2s; }
.toast-close:hover { opacity: 1; }
@keyframes toast-fade-in { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: translateX(0); } }
@keyframes toast-fade-out { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(100%); } }
.toast.hiding { animation: toast-fade-out 0.3s ease forwards; }

/* --- 9. 响应式 --- */
@media (max-width: 992px) {
    .admin-container { flex-direction: column; }
    .forms-area, .list-container { min-width: 100%; flex: auto; }
}

/* multiuser */
.login-form .form-footer {
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.login-form .form-footer a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
}