/**
 * Financial Analytics Platform - UI Components
 * Reusable component styles for buttons, cards, badges, tables, forms, alerts
 */

/* ============================================================================
   Buttons
   ============================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-color: transparent;
}

.btn-primary:hover:not(:disabled) {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(75, 85, 99, 0.3);
    color: var(--color-text-primary);
    border-color: var(--color-text-placeholder);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(75, 85, 99, 0.5);
    color: var(--color-text-primary);
}

.btn-success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border-color: var(--color-success-border);
}

.btn-success:hover:not(:disabled) {
    background: rgba(34, 197, 94, 0.25);
}

.btn-danger {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border-color: var(--color-danger-border);
}

.btn-danger:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.25);
}

.btn-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
    border-color: var(--color-warning-border);
}

.btn-warning:hover:not(:disabled) {
    background: rgba(234, 179, 8, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary-light);
    border-color: var(--color-primary-border);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-primary-bg);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-base);
}

.btn-block {
    width: 100%;
}

/* ============================================================================
   Cards
   ============================================================================ */
.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
}

.card-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.card-header h3 {
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
    margin: 0;
}

.card-body {
    color: var(--color-text-secondary);
}

.card-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.card-gradient {
    background: linear-gradient(135deg, var(--color-primary-bg), rgba(147, 51, 234, 0.05));
    border-color: var(--color-primary-border);
}

/* ============================================================================
   Badges
   ============================================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-success,
.badge-completed {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid var(--color-success-border);
}

.badge-danger,
.badge-failed {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid var(--color-danger-border);
}

.badge-warning,
.badge-pending {
    background: var(--color-warning-bg);
    color: var(--color-warning);
    border: 1px solid var(--color-warning-border);
}

.badge-info,
.badge-running {
    background: var(--color-info-bg);
    color: var(--color-info);
    border: 1px solid var(--color-info-border);
}

.badge-secondary {
    background: rgba(75, 85, 99, 0.3);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-text-placeholder);
}

.badge-buy {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid var(--color-success-border);
}

.badge-sell {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid var(--color-danger-border);
}

/* ============================================================================
   Alerts
   ============================================================================ */
.alert {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-sm);
}

.alert-success {
    background: var(--color-success-bg);
    border: 1px solid var(--color-success-border);
    color: var(--color-success);
}

.alert-danger,
.alert-error {
    background: var(--color-danger-bg);
    border: 1px solid var(--color-danger-border);
    color: var(--color-danger-light);
}

.alert-warning {
    background: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
    color: var(--color-warning-light);
}

.alert-info {
    background: var(--color-info-bg);
    border: 1px solid var(--color-info-border);
    color: var(--color-info-light);
}

/* ============================================================================
   Metric Cards
   ============================================================================ */
.metric-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    text-align: center;
}

.metric-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.metric-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.metric-value.positive {
    color: var(--color-success);
}

.metric-value.negative {
    color: var(--color-danger);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-xl);
}

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

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

.table thead {
    background: var(--color-bg-tertiary);
}

.table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
}

.table tbody tr:hover {
    background: rgba(59, 130, 246, 0.05);
}

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

/* ============================================================================
   Forms
   ============================================================================ */
.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-label.required::after {
    content: " *";
    color: var(--color-danger-light);
}

.form-control,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="url"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus,
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.form-control::placeholder,
input::placeholder,
textarea::placeholder {
    color: var(--color-text-muted);
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    line-height: 1.5;
}

.form-error,
.field-error {
    font-size: var(--font-size-xs);
    color: var(--color-danger-light);
    margin-top: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-danger-bg);
    border: 1px solid var(--color-danger-border);
    border-radius: var(--radius-sm);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

/* ============================================================================
   Stats Section
   ============================================================================ */
.stats-bar {
    display: flex;
    gap: var(--spacing-3xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.stat-item {
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
}

.stat-item strong {
    margin-right: var(--spacing-sm);
}

/* ============================================================================
   Empty State
   ============================================================================ */
.empty-state {
    background: var(--color-bg-secondary);
    padding: var(--spacing-3xl);
    text-align: center;
    border-radius: var(--radius-lg);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.empty-state-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================================================
   Config/Detail Sections
   ============================================================================ */
.config-section {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.config-item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.config-label {
    font-weight: 500;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.config-value {
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    margin-left: var(--spacing-md);
}

/* ============================================================================
   List Items
   ============================================================================ */
.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    transition: border-color var(--transition-fast);
}

.list-item:hover {
    border-color: var(--color-primary-border);
}

.list-item-content {
    flex: 1;
}

.list-item-title {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.list-item-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.list-item-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ============================================================================
   Section Headers
   ============================================================================ */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    margin: 0;
}

/* ============================================================================
   Light Theme Overrides
   ============================================================================ */

/* --- Buttons --- */
html.theme-light .btn-primary {
    background: linear-gradient(135deg, #4f46e5, #6366f1);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25), 0 1px 2px rgba(0, 0, 0, 0.06);
}

html.theme-light .btn-primary:hover:not(:disabled) {
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.35), 0 2px 4px rgba(0, 0, 0, 0.08);
}

html.theme-light .btn-secondary {
    background: #ffffff;
    color: #475569;
    border-color: #e2e8f0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

html.theme-light .btn-secondary:hover:not(:disabled) {
    background: #f8fafc;
    border-color: #cbd5e1;
    color: #1e293b;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

html.theme-light .btn-success {
    background: #f0fdf4;
    color: #16a34a;
    border-color: #bbf7d0;
}

html.theme-light .btn-success:hover:not(:disabled) {
    background: #dcfce7;
    border-color: #86efac;
}

html.theme-light .btn-danger {
    background: #fef2f2;
    color: #dc2626;
    border-color: #fecaca;
}

html.theme-light .btn-danger:hover:not(:disabled) {
    background: #fee2e2;
    border-color: #fca5a5;
}

html.theme-light .btn-warning {
    background: #fffbeb;
    color: #d97706;
    border-color: #fde68a;
}

html.theme-light .btn-warning:hover:not(:disabled) {
    background: #fef3c7;
    border-color: #fcd34d;
}

html.theme-light .btn-outline {
    color: #4f46e5;
    border-color: #c7d2fe;
}

html.theme-light .btn-outline:hover:not(:disabled) {
    background: #eef2ff;
    border-color: #a5b4fc;
}

/* --- Cards --- */
html.theme-light .card {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
}

html.theme-light .card-header {
    border-bottom-color: #f1f5f9;
}

html.theme-light .card-footer {
    border-top-color: #f1f5f9;
}

html.theme-light .card-gradient {
    background: linear-gradient(135deg, #eef2ff, #f5f3ff);
    border-color: #e0e7ff;
}

/* --- Badges --- */
html.theme-light .badge-success,
html.theme-light .badge-completed {
    background: #f0fdf4;
    color: #16a34a;
    border-color: #bbf7d0;
}

html.theme-light .badge-danger,
html.theme-light .badge-failed {
    background: #fef2f2;
    color: #dc2626;
    border-color: #fecaca;
}

html.theme-light .badge-warning,
html.theme-light .badge-pending {
    background: #fffbeb;
    color: #d97706;
    border-color: #fde68a;
}

html.theme-light .badge-info,
html.theme-light .badge-running {
    background: #eff6ff;
    color: #2563eb;
    border-color: #bfdbfe;
}

html.theme-light .badge-secondary {
    background: #f8fafc;
    color: #475569;
    border-color: #e2e8f0;
}

/* --- Alerts --- */
html.theme-light .alert-success {
    background: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

html.theme-light .alert-danger,
html.theme-light .alert-error {
    background: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

html.theme-light .alert-warning {
    background: #fffbeb;
    border-color: #fde68a;
    color: #92400e;
}

html.theme-light .alert-info {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

/* --- Metric Cards --- */
html.theme-light .metric-card {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

html.theme-light .metric-label {
    color: #64748b;
}

html.theme-light .metric-value {
    color: #1e293b;
}

html.theme-light .metric-value.positive {
    color: #16a34a;
}

html.theme-light .metric-value.negative {
    color: #dc2626;
}

/* --- Tables --- */
html.theme-light .table-container {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

html.theme-light .table thead {
    background: #f8fafc;
}

html.theme-light .table th {
    color: #64748b;
    border-bottom-color: #e2e8f0;
}

html.theme-light .table td {
    border-bottom-color: #f1f5f9;
    color: #1e293b;
}

html.theme-light .table tbody tr:hover {
    background: #f8fafc;
}

/* --- Forms --- */
html.theme-light .form-control,
html.theme-light input[type="text"],
html.theme-light input[type="email"],
html.theme-light input[type="password"],
html.theme-light input[type="number"],
html.theme-light input[type="date"],
html.theme-light input[type="url"],
html.theme-light textarea,
html.theme-light select {
    background: #ffffff;
    border-color: #e2e8f0;
    color: #1e293b;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

html.theme-light .form-control:focus,
html.theme-light input:focus,
html.theme-light textarea:focus,
html.theme-light select:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1), 0 1px 2px rgba(0, 0, 0, 0.04);
}

html.theme-light .form-control::placeholder,
html.theme-light input::placeholder,
html.theme-light textarea::placeholder {
    color: #94a3b8;
}

html.theme-light .form-label {
    color: #475569;
}

html.theme-light .form-hint {
    color: #94a3b8;
}

html.theme-light .form-actions {
    border-top-color: #f1f5f9;
}

/* --- Stats --- */
html.theme-light .stats-bar {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

/* --- Empty State --- */
html.theme-light .empty-state {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

html.theme-light .empty-state-title {
    color: #1e293b;
}

html.theme-light .empty-state-description {
    color: #64748b;
}

/* --- Config Sections --- */
html.theme-light .config-section {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

html.theme-light .config-item {
    border-bottom-color: #f1f5f9;
}

html.theme-light .config-label {
    color: #64748b;
}

html.theme-light .config-value {
    color: #1e293b;
}

/* --- List Items --- */
html.theme-light .list-item {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

html.theme-light .list-item:hover {
    border-color: #c7d2fe;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.06);
}

html.theme-light .list-item-title {
    color: #1e293b;
}

html.theme-light .list-item-description {
    color: #64748b;
}