/* Dark Mode Theme */
.dark {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-secondary: #60a5fa;
    --accent-hover: #93c5fd;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --input-bg: #1e293b;
    --card-bg: #1e293b;
    --grid-pattern: rgba(255, 255, 255, 0.05);
    --grid-pattern-light: rgba(255, 255, 255, 0.025);
    --video-bg: #000000;
    --tooltip-bg: #f8fafc;
    --tooltip-text: #0f172a;
    --format-tag-bg: #334155;
    --format-tag-text: #cbd5e1;
    --format-tag-border: #475569;
    --error-color: #f87171;
    --error-bg: #7f1d1d;
    --success-color: #34d399;
    --success-bg: #065f46;
    --demo-button-bg: #334155;
    --demo-button-text: #cbd5e1;
    --demo-button-border: #475569;
    --demo-button-hover: #475569;
    --demo-button-active: #64748b;
    --accordion-bg: #1e293b;
    --accordion-border: #334155;
    --accordion-divider: #0f172a;
    --footer-bg: #0f172a;
    --footer-text: #94a3b8;
    --show-more-bg: #2d3748;
    --show-more-text: #e2e8f0;
    --toggle-button-bg: #0c4a6e;
    --toggle-button-text: #bae6fd;
    --toggle-button-border: #0284c7;
    --toggle-button-hover: #0369a1;
    --toggle-button-active: #0ea5e9;
    --focus-ring: 0 0 0 3px rgba(96, 165, 250, 0.6);
}

/* Dark mode specific overrides */
.dark .mode-toggle i {
    color: #f9fafb;
}

.dark .loading-indicator::after {
    border-color: rgba(0, 0, 0, 0.2);
    border-top-color: var(--accent-primary);
}

/* Enhance focus states for dark mode */
.dark button:focus-visible,
.dark input:focus-visible,
.dark .accordion-header:focus-visible,
.dark .demo-button:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
    position: relative;
    z-index: 1;
}

/* Dark mode specific animations */
@keyframes dark-spinner {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.dark .loading-indicator::after {
    animation: dark-spinner 1s linear infinite;
}