/* =========================================
   SecHub 管理后台样式表
   ========================================= */

/* CSS 变量 + 暗黑模式变量 */
:root {
    --bg: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: rgba(255, 255, 255, 0.92);
    --card-border: rgba(255, 255, 255, 0.3);
    --text: #2c3e50;
    --text-sec: #7f8c8d;
    --border: #e0e6ed;
    --primary: #2b6cb0;
    --primary-h: #1a4f8b;
    --primary-light: #ebf4ff;
    --success: #27ae60;
    --success-bg: #d4edda;
    --success-text: #155724;
    --danger: #e74c3c;
    --danger-bg: #f8d7da;
    --danger-text: #721c24;
    --warning: #f39c12;
    --warning-bg: #fff3cd;
    --warning-text: #856404;
    --shadow: 0 4px 16px rgba(0,0,0,0.07);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: 0.25s ease;
}

body.dark-mode {
    --bg: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    --card-bg: rgba(26, 32, 44, 0.92);
    --card-border: rgba(255, 255, 255, 0.08);
    --text: #e2e8f0;
    --text-sec: #a0aec0;
    --border: #4a5568;
    --primary: #63b3ed;
    --primary-h: #4299e1;
    --primary-light: #2d3748;
    --success-bg: #22543d;
    --success-text: #68d391;
    --danger-bg: #742a2a;
    --danger-text: #fc8181;
    --warning-bg: #744210;
    --warning-text: #f6e05e;
    --shadow: 0 4px 16px rgba(0,0,0,0.3);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
}

.container { max-width: 1300px; margin: 0 auto; padding: 20px; }

/* ======= Header ======= */
.header {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    padding: 22px 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    transition: background var(--transition), box-shadow var(--transition);
}
.header h1 {
    font-size: 1.4em;
    color: var(--primary);
    transition: color var(--transition);
}
.header-sub {
    color: var(--text-sec);
    font-size: 0.85em;
    margin-top: 4px;
}
.header-actions { display: flex; gap: 10px; align-items: center; }

/* ======= Theme Toggle ======= */
.theme-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 14px;
    cursor: pointer;
    font-size: 1em;
    color: var(--text-sec);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}
.theme-btn:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

/* ======= Buttons ======= */
.btn {
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    text-decoration: none;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 2px 8px rgba(0,0,0,0.12); }

.btn-primary { background: var(--primary); color: white; padding: 8px 18px; border-radius: 6px; }
.btn-primary:hover { background: var(--primary-h); }
.btn-success { background: var(--success); color: white; padding: 8px 18px; border-radius: 6px; }
.btn-success:hover { background: #229954; }
.btn-danger { background: var(--danger); color: white; padding: 8px 18px; border-radius: 6px; }
.btn-danger:hover { background: #c0392b; }
.btn-warning { background: var(--warning); color: white; padding: 8px 18px; border-radius: 6px; }
.btn-warning:hover { background: #d68910; }
.btn-small { padding: 5px 12px; font-size: 0.85em; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 18px;
    border-radius: 6px;
    transition: all var(--transition);
}
.btn-outline:hover {
    background: var(--card-bg);
    border-color: var(--primary);
    color: var(--primary);
}
.btn-text { background: none; border: none; cursor: pointer; color: var(--primary); padding: 4px 8px; font-size: 0.9em; }
.btn-text:hover { text-decoration: underline; }
.btn-text.danger { color: var(--danger); }
.btn-lg { font-size: 1.1em; padding: 12px 50px; }

/* ======= Tabs ======= */
.tabs {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius) var(--radius) 0 0;
    box-shadow: var(--shadow);
    display: flex;
    border-bottom: 2px solid var(--border);
    overflow-x: auto;
    transition: background var(--transition);
}
.tab-btn {
    padding: 14px 24px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.95em;
    font-weight: 500;
    color: var(--text-sec);
    transition: all var(--transition);
    white-space: nowrap;
    position: relative;
}
.tab-btn:hover { color: var(--text); background: var(--primary-light); }
.tab-btn.active {
    color: var(--primary);
    background: var(--primary-light);
    font-weight: 600;
}
.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    animation: tabSlideIn 0.2s ease;
}
@keyframes tabSlideIn {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

/* Tab Content */
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.2s ease; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ======= Panel ======= */
.panel {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
    padding: 25px;
    margin-bottom: 22px;
    transition: background var(--transition);
}

/* ======= Alert ======= */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}
.alert-success { background: var(--success-bg); color: var(--success-text); border: 1px solid; }
.alert-error { background: var(--danger-bg); color: var(--danger-text); border: 1px solid; }
.alert-warning { background: var(--warning-bg); color: var(--warning-text); border: 1px solid; }

/* ======= Toast ======= */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}
.toast {
    pointer-events: auto;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.95em;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.35s ease;
    max-width: 400px;
    word-break: break-word;
    display: flex;
    align-items: center;
    gap: 10px;
}
.toast.toast-out { animation: toastOut 0.3s ease forwards; }
@keyframes toastIn {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(50px); }
}
.toast-success { background: var(--success-bg); color: var(--success-text); border-left: 4px solid var(--success); }
.toast-error { background: var(--danger-bg); color: var(--danger-text); border-left: 4px solid var(--danger); }
.toast-warning { background: var(--warning-bg); color: var(--warning-text); border-left: 4px solid var(--warning); }

/* ======= Table ======= */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(--border); transition: background 0.15s; }
th {
    background: var(--primary-light);
    font-weight: 600;
    color: var(--text-sec);
    font-size: 0.9em;
    transition: background var(--transition), color var(--transition);
}
tr:hover { background: var(--primary-light); }
.draggable-row { cursor: move; }
.draggable-row.dragging { opacity: 0.5; background: rgba(43, 108, 176, 0.1); }
.drag-handle { color: var(--text-sec); cursor: move; font-size: 1.2em; user-select: none; }
.order-num { font-weight: 600; color: var(--primary); }
.mono { font-family: 'Courier New', monospace; font-size: 0.9em; color: var(--text-sec); }
.count-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.85em;
}

/* ======= Two column layout ======= */
.two-col { display: flex; gap: 22px; align-items: flex-start; }
.two-col .side { flex: 0 0 280px; }
.two-col .main { flex: 1; min-width: 0; }

/* ======= Section list ======= */
.section-list { border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.section-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
}
.section-list-item:last-child { border-bottom: none; }
.section-list-item:hover { background: var(--primary-light); }
.section-list-item.active { background: var(--primary-light); border-left: 3px solid var(--primary); }
.section-list-item .sname { font-weight: 500; }
.section-list-item .scount { font-size: 0.85em; color: var(--text-sec); }
.section-list-item .sactions { display: flex; gap: 4px; opacity: 0.3; transition: opacity 0.15s; }
.section-list-item:hover .sactions { opacity: 1; }

/* ======= Modal ======= */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.modal-overlay.show {
    display: flex;
    opacity: 1;
}
.modal {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border-radius: var(--radius);
    padding: 30px;
    width: 500px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.92) translateY(10px);
    transition: transform 0.25s ease;
    color: var(--text);
}
.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}
.modal h2 { margin-bottom: 20px; font-size: 1.2em; }
.modal .form-group { margin-bottom: 16px; }
.modal .form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 0.9em; color: var(--text-sec); }
.modal .form-group input,
.modal .form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 0.95em;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text);
    transition: border-color 0.2s, background var(--transition), color var(--transition);
}
.modal .form-group input:focus,
.modal .form-group textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.1);
}
.modal .form-group textarea { min-height: 80px; resize: vertical; }
.modal .modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }
.modal .modal-actions .btn { padding: 10px 24px; }
.modal .required-star { color: var(--danger); }

/* ======= Import ======= */
.import-area textarea {
    width: 100%;
    min-height: 200px;
    padding: 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    resize: vertical;
    transition: border-color 0.2s;
    background: var(--card-bg);
    color: var(--text);
}
.import-area textarea:focus { border-color: var(--primary); outline: none; }
.import-preview { margin-top: 15px; animation: fadeIn 0.2s ease; }
.import-preview table { font-size: 0.9em; }
.import-preview table th { background: var(--primary-light); }
.preview-empty { color: var(--text-sec); text-align: center; padding: 20px; }

/* ======= Settings ======= */
.settings-group {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin-bottom: 20px;
    transition: border-color var(--transition);
}
.settings-group h3 { margin-bottom: 15px; font-size: 1.05em; }
.settings-group .form-group { margin-bottom: 12px; }
.settings-group .form-group label { display: block; margin-bottom: 4px; font-weight: 500; font-size: 0.9em; color: var(--text-sec); }
.settings-group .form-group input {
    width: 100%;
    max-width: 300px;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 0.95em;
    background: var(--card-bg);
    color: var(--text);
    transition: border-color 0.2s, background var(--transition);
}
.settings-group .form-group input:focus { border-color: var(--primary); outline: none; }
.settings-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.settings-info {
    color: var(--text-sec);
    font-size: 0.9em;
    margin-bottom: 12px;
    line-height: 1.8;
}

/* ======= Tip ======= */
.tip {
    background: var(--primary-light);
    border-left: 4px solid var(--primary);
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 16px;
    font-size: 0.9em;
}

/* ======= Empty state ======= */
.empty-state { text-align: center; color: var(--text-sec); padding: 40px 20px; }

/* ======= Warning box ======= */
.warning-box {
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--warning-bg);
    color: var(--warning-text);
    border-radius: 6px;
    border: 1px solid;
    font-size: 0.95em;
    line-height: 1.6;
}

/* ======= Action bar ======= */
.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 10px;
}
.action-bar h3 { font-size: 1em; }
.section-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

/* ======= Sort save bar ======= */
.sort-save-bar {
    text-align: center;
    padding-top: 20px;
    border-top: 2px solid var(--border);
    margin-top: 20px;
}

/* ======= Separator ======= */
.separator { border: none; border-top: 2px solid var(--border); margin: 20px 0; }

/* ======= Tool list cells ======= */
.cell-url { word-break: break-all; font-size: 0.9em; }
.cell-desc { color: var(--text-sec); font-size: 0.9em; }
.cell-url a { color: var(--primary); text-decoration: none; }
.cell-url a:hover { text-decoration: underline; }
.col-section-title { color: var(--primary); }

/* ======= Form Select ======= */
.form-select {
    width: 100%;
    max-width: 300px;
    padding: 10px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 0.95em;
    background: var(--card-bg);
    color: var(--text);
    transition: border-color 0.2s, background var(--transition), color var(--transition);
}
.form-select:focus { border-color: var(--primary); outline: none; }
.form-select-sm {
    padding: 8px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 0.9em;
    background: var(--card-bg);
    color: var(--text);
}

/* ======= Export box ======= */
.export-box {
    border: 1px solid var(--border);
    padding: 16px;
    border-radius: var(--radius-sm);
    transition: border-color var(--transition);
}

/* ======= Footer ======= */
.admin-footer {
    text-align: center;
    padding: 20px;
    color: var(--text-sec);
    font-size: 0.85em;
}

/* ======= Responsive ======= */
@media (max-width: 768px) {
    .container { padding: 10px; }
    .header { flex-direction: column; text-align: center; }
    .two-col { flex-direction: column; }
    .two-col .side { flex: 0 0 auto; }
    .tab-btn { padding: 10px 14px; font-size: 0.85em; }
    .panel { padding: 15px; }
    .modal { padding: 20px; }
}