/* Vercel-Inspired Pure Black Theme */
:root {
    --bg-primary: #000000;
    --bg-secondary: #000000;
    --bg-tertiary: #0a0a0a;
    --bg-hover: #111111;
    --border: #1a1a1a;
    --border-light: #222222;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --text-muted: #666666;
    --accent: #0070f3;
    --accent-hover: #0060df;
    --accent-light: rgba(0, 112, 243, 0.1);
    --success: #0ddb7f;
    --error: #e5484d;
    --warning: #f5a524;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    font-size: 14px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 24px;
}

/* Header */
header {
    padding: 32px 0;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--border);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.05em;
}

header p {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Sections */
section {
    background-color: var(--bg-secondary);
    padding: 24px;
    margin-bottom: 24px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

section h2 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
}

section h3 {
    font-size: 1rem;
    margin: 24px 0 16px 0;
    color: var(--text-primary);
    font-weight: 600;
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 10px 12px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all 0.15s ease;
    outline: none;
}

input[type="text"]:hover,
input[type="number"]:hover,
select:hover {
    border-color: var(--border-light);
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

small {
    display: block;
    margin-top: 6px;
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* Buttons */
button {
    padding: 10px 20px;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    outline: none;
}

button:hover:not(:disabled) {
    background-color: var(--bg-hover);
    border-color: var(--border-light);
}

button:active:not(:disabled) {
    transform: scale(0.98);
}

button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.primary-btn {
    background-color: var(--accent);
    color: #ffffff;
    border: 1px solid var(--accent);
    padding: 12px 32px;
    font-weight: 600;
}

.primary-btn:hover:not(:disabled) {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    box-shadow: 0 0 20px rgba(0, 112, 243, 0.3);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    transition: 0.15s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-muted);
    transition: 0.15s;
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--accent);
    border-color: var(--accent);
}

.toggle-switch input:checked + .toggle-slider:before {
    background-color: #ffffff;
    transform: translateX(20px);
}

/* Tables */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: var(--bg-primary);
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

th {
    padding: 12px 16px;
    text-align: left;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 0.875rem;
}

tbody tr {
    transition: background-color 0.15s ease;
}

tbody tr:hover {
    background-color: var(--bg-secondary);
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr.selected {
    background-color: var(--accent-light);
}

input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--accent);
}

/* Pagination */
.pagination-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 20px;
    padding: 16px;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.pagination-controls button {
    min-width: 100px;
}

.pagination-controls span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.pagination-controls label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.pagination-controls select {
    padding: 6px 10px;
    min-width: 70px;
}

/* New pagination-specific classes */
.pagination-btn {
    min-width: 100px;
    padding: 8px 16px;
}

.page-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    min-width: 150px;
    text-align: center;
}

.pagination-divider {
    width: 1px;
    height: 32px;
    background-color: var(--border);
    margin: 0 8px;
}

.per-page-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.per-page-container label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
    white-space: nowrap;
}

.per-page-select {
    padding: 6px 10px;
    min-width: 70px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
}

/* Settings Categories */
.settings-category {
    margin-bottom: 32px;
    padding: 24px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: all 0.15s ease;
}

.selected-count {
    display: inline-block;
    padding: 8px 16px;
    background-color: var(--accent-light);
    color: var(--accent);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
}

/* Alerts */
.alert {
    padding: 14px 18px;
    margin-bottom: 20px;
    border-radius: 6px;
    font-size: 0.875rem;
    border: 1px solid;
}

.alert-error {
    background-color: rgba(229, 72, 77, 0.1);
    color: var(--error);
    border-color: var(--error);
}

.alert-success {
    background-color: rgba(13, 219, 127, 0.1);
    color: var(--success);
    border-color: var(--success);
}

/* Loading Indicator */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 16px;
}

.spinner {
    border: 3px solid var(--border);
    border-top: 3px solid var(--accent);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Progress Indicator */
.progress-indicator {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 24px;
}

.progress-header {
    margin-bottom: 20px;
}

.progress-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.progress-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--success));
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.progress-details {
    max-height: 200px;
    overflow-y: auto;
    border-top: 1px solid var(--border);
    padding-top: 16px;
    margin-top: 8px;
}

.progress-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-light);
}

.progress-item:last-child {
    border-bottom: none;
}

.progress-item-icon {
    font-size: 1rem;
}

.progress-item-name {
    flex: 1;
    color: var(--text-primary);
}

.progress-item-status {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.progress-item.success .progress-item-icon {
    color: var(--success);
}

.progress-item.error .progress-item-icon {
    color: var(--error);
}

.progress-item.processing .progress-item-icon {
    color: var(--accent);
}

/* Utility Classes */
.text-secondary {
    color: var(--text-secondary);
}

.text-muted {
    color: var(--text-muted);
}

.mb-2 {
    margin-bottom: 16px;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-on {
    background-color: rgba(13, 219, 127, 0.15);
    color: var(--success);
}

.badge-off {
    background-color: rgba(136, 136, 136, 0.15);
    color: var(--text-muted);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--bg-hover);
}

/* Dirty state indicators */
.setting-input.dirty {
    border-color: var(--warning);
    box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.1);
}

.toggle-switch input.dirty + .toggle-slider {
    box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.1);
}

.settings-category.has-changes {
    border-left: 3px solid var(--warning);
    padding-left: 21px;
}

.settings-category.has-changes h3::before {
    content: "• ";
    color: var(--warning);
    font-weight: bold;
    margin-right: 4px;
}