/* ─── CSS Variables & Reset ─── */
:root {
    --sidebar-w: 240px;
    --primary: #4A90D9;
    --primary-hover: #357ABD;
    --danger: #e74c3c;
    --danger-hover: #c0392b;
    --success: #2e7d32;
    --warning: #e65100;
    --bg: #f0f2f5;
    --card-bg: #fff;
    --text: #333;
    --text-secondary: #666;
    --text-muted: #999;
    --border: #e0e0e0;
    --radius: 10px;
    --shadow: 0 1px 4px rgba(0,0,0,0.04);
    --topbar-bg: #fff;
    --input-bg: #fff;
    --hover-row: #fafafa;
}

[data-theme="dark"] {
    --bg: #111318;
    --card-bg: #1a1d29;
    --text: #e0e0e0;
    --text-secondary: #aaa;
    --text-muted: #777;
    --border: #2a2d3a;
    --shadow: 0 1px 4px rgba(0,0,0,0.2);
    --topbar-bg: #1a1d29;
    --input-bg: #252836;
    --hover-row: #222536;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }

/* ─── Layout ─── */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-w);
    background: #1a1d29;
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    flex-shrink: 0;
    transition: transform 0.2s;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 20px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-logo {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--primary), #357ABD);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    color: #fff;
    flex-shrink: 0;
}

.sidebar-title { font-size: 16px; font-weight: 600; }

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
}

.sidebar-nav-item:hover { background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.9); }
.sidebar-nav-item.active { background: rgba(74,144,217,0.15); color: var(--primary); }

.sidebar-footer {
    padding: 12px 10px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    margin-bottom: 6px;
}

.user-avatar {
    width: 32px; height: 32px;
    background: linear-gradient(135deg, #6366f1, #4a46e0);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
    color: #fff;
    flex-shrink: 0;
}

.user-name { font-size: 13px; color: rgba(255,255,255,0.7); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.user-role-tag {
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 4px;
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    flex-shrink: 0;
}

.sidebar-actions {
    display: flex;
    gap: 4px;
    padding: 0 14px;
}

.sidebar-action-btn {
    width: 32px; height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: none;
    background: transparent;
    color: rgba(255,255,255,0.4);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}

.sidebar-action-btn:hover { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.8); }

.logout-btn { margin-left: auto; font-size: 12px; font-weight: 600; }

/* ─── Top Bar ─── */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0 20px;
}

.top-bar-title {
    font-size: 20px;
    font-weight: 700;
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-toggle {
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
    font-weight: 500;
}

.lang-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-w);
    padding: 28px 32px;
    min-height: 100vh;
}

/* ─── Cards ─── */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--card-bg); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.stat-card .label { font-size: 13px; color: var(--text-muted); margin-bottom: 4px; }
.stat-card .value { font-size: 28px; font-weight: 700; }

.card { background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; margin-bottom: 24px; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.card-header h2 { font-size: 16px; font-weight: 600; }

/* ─── Table ─── */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { font-weight: 600; color: var(--text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
tr:hover td { background: var(--hover-row); }

/* ─── Tags ─── */
.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 500; }
.tag-active { background: #e8f5e9; color: var(--success); }
.tag-expired { background: #fce4ec; color: var(--danger); }
.tag-disabled { background: #f5f5f5; color: var(--text-muted); }
.tag-password { background: #fff3e0; color: var(--warning); }

[data-theme="dark"] .tag-active { background: rgba(46,125,50,0.2); }
[data-theme="dark"] .tag-expired { background: rgba(231,76,60,0.2); }
[data-theme="dark"] .tag-disabled { background: rgba(255,255,255,0.06); }
[data-theme="dark"] .tag-password { background: rgba(230,81,0,0.2); }

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-outline { background: var(--card-bg); border: 1px solid var(--border); color: var(--text-secondary); }
.btn-outline:hover { background: var(--hover-row); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ─── Forms ─── */
input[type=text], input[type=password], input[type=datetime-local], input[type=file], input[type=number], input[type=email], input[type=url], select, textarea {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    width: 100%;
    outline: none;
    background: var(--input-bg);
    color: var(--text);
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(74,144,217,0.1); }
.form-group { margin-bottom: 12px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; color: var(--text-secondary); }
.form-row { display: flex; gap: 12px; }
.form-row > * { flex: 1; }

/* ─── Modal ─── */
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.15s ease;
}
.modal {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    animation: slideUp 0.2s ease;
}
.modal h3 { font-size: 18px; margin-bottom: 16px; }
.modal h4 { font-size: 14px; margin: 16px 0 8px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ─── Search / Actions ─── */
.search-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.search-bar input[type=text] { flex: 1; min-width: 150px; }
.search-bar input[type=date] { width: auto; }

.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}
.pagination button {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text);
}
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination button:hover:not(:disabled) { background: var(--hover-row); }

/* ─── Upload Zone ─── */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 16px;
}
.upload-zone:hover, .upload-zone.dragover { border-color: var(--primary); background: rgba(74,144,217,0.05); }
.upload-zone p { color: var(--text-muted); }
.upload-zone .icon { font-size: 36px; margin-bottom: 8px; color: #ccc; }
.progress-bar { height: 4px; background: var(--border); border-radius: 2px; margin-top: 8px; overflow: hidden; }
.progress-bar .fill { height: 100%; background: var(--primary); transition: width 0.3s; }

.actions-bar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; align-items: center; }

/* ─── Filter Tabs ─── */
.filter-tabs { display: flex; gap: 0; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.filter-tab { padding: 8px 16px; cursor: pointer; font-size: 13px; color: var(--text-secondary); border-bottom: 2px solid transparent; transition: all 0.15s; }
.filter-tab:hover { color: var(--text); }
.filter-tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ─── Misc ─── */
.copy-link { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--primary); cursor: pointer; }
.copy-link:hover { text-decoration: underline; }

.table-wrap { overflow-x: auto; }
.empty-state { text-align: center; padding: 40px; color: var(--text-muted); font-size: 14px; }
input[type=checkbox] { accent-color: var(--primary); }

/* ─── Group Cards ─── */
.group-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; cursor: pointer; transition: all 0.15s; }
.group-card:hover { border-color: var(--primary); box-shadow: 0 2px 8px rgba(74,144,217,0.1); }
.group-card-header { display: flex; align-items: center; justify-content: space-between; }

/* ─── Login ─── */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-card { background: var(--card-bg); border-radius: 12px; padding: 40px; box-shadow: 0 4px 20px rgba(0,0,0,0.06); width: 360px; animation: slideUp 0.3s ease; }
.login-card h1 { font-size: 22px; text-align: center; margin-bottom: 24px; }
.login-card .error { color: var(--danger); font-size: 13px; margin-top: 8px; text-align: center; }

/* ─── Toast ─── */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: #333;
    color: #fff;
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 13px;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}
.toast.show { opacity: 1; }

/* ─── Loading Spinner ─── */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin: 40px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Search Highlight ─── */
.search-highlight { background: #fff3cd; padding: 0 2px; border-radius: 2px; }

/* ─── Settings Card ─── */
.settings-section { margin-bottom: 28px; }
.settings-section h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}
.settings-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.setting-checkbox { display: flex; align-items: center; gap: 8px; padding: 8px 0; }
.setting-checkbox label { margin: 0; cursor: pointer; }
.setting-checkbox input[type=checkbox] { width: auto; }

/* ─── Role Badge ─── */
.role-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.role-superadmin { background: linear-gradient(135deg, #f6d365, #fda085); color: #fff; }
.role-admin { background: var(--primary); color: #fff; }
.role-editor { background: #6366f1; color: #fff; }
.role-viewer { background: #94a3b8; color: #fff; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .sidebar-title, .nav-label, .user-name, .user-role-tag, .sidebar-actions { display: none; }
    .sidebar-brand { justify-content: center; padding: 16px 10px; }
    .sidebar-nav { padding: 8px 6px; }
    .sidebar-nav-item { justify-content: center; padding: 10px; }
    .sidebar-user { justify-content: center; }
    .sidebar-footer { padding: 12px 6px; }
    .main-content { margin-left: 60px; padding: 20px 16px; }
    .stat-cards { grid-template-columns: repeat(2, 1fr); }
    .form-row { flex-direction: column; }
    .search-bar input[type=date] { width: 100%; }
    .settings-grid { grid-template-columns: 1fr; }
}

/* ─── Toolbar (search + filters) ─── */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.toolbar-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 200px;
}
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.toolbar-search {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    width: 240px;
    outline: none;
    background: var(--input-bg);
    color: var(--text);
}
.toolbar-search:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(74,144,217,0.1); }
.toolbar-select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    background: var(--input-bg);
    color: var(--text);
    outline: none;
}
.toolbar-date {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    background: var(--input-bg);
    color: var(--text);
    outline: none;
    width: 130px;
}
.search-meta {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding: 8px 12px;
    background: rgba(74,144,217,0.05);
    border-radius: 6px;
}

/* ─── Button Sizes ─── */
.btn-xs { padding: 3px 8px; font-size: 11px; border-radius: 4px; }

/* ─── File Name Cell ─── */
.file-name-cell { display: flex; flex-direction: column; gap: 2px; }
.file-name { font-weight: 500; max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; }
.file-note { font-size: 11px; color: var(--text-muted); }

/* ─── Action Group ─── */
.action-group { display: flex; gap: 4px; justify-content: flex-end; flex-wrap: wrap; }

/* ─── Upload Modal ─── */
.upload-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.upload-divider { border-top: 1px solid var(--border); margin: 16px 0; }
.upload-dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--input-bg);
}
.upload-dropzone:hover, .upload-dropzone.dragover {
    border-color: var(--primary);
    background: rgba(74,144,217,0.05);
}
.upload-dropzone-icon { font-size: 36px; margin-bottom: 8px; }
.upload-dropzone-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 4px; }
.upload-dropzone-hint { font-size: 12px; color: var(--text-muted); }
.upload-status { font-size: 13px; color: var(--text-secondary); margin-top: 8px; min-height: 18px; }

/* ─── Upload Card (page-level) ─── */
.upload-card { border: 1px solid var(--border); }
.upload-area { padding: 0; }
.upload-progress-area { padding: 16px 24px; }

[data-theme="dark"] .upload-dropzone:hover,
[data-theme="dark"] .upload-dropzone.dragover {
    background: rgba(74,144,217,0.08);
}