/* Dark Mode Theme Definition */
:root[data-theme="dark"] {
    /* Inherit base variables but override colors */

    /* Primary Background (#1a1f3d - Deep Navy) */
    --color-bg-primary: #1a1f3d;

    /* Surface / Card Background (#21284f - Requested Main Color) */
    --color-bg-secondary: #21284f;
    --color-surface: #21284f;

    /* Surface Variants / Hover (#2a325d) */
    --color-bg-tertiary: #2a325d;
    --color-surface-alt: #1e2446;
    --color-surface-hover: #2a325d;

    /* Text Colors */
    --color-text-primary: #ffffff;
    /* Pure White */
    --color-text-secondary: #cbd5e1;
    /* Light Slate */
    --color-text-muted: #94a3b8;
    /* Muted Slate */
    --color-text-subtle: #64748b;
    --color-text-inverse: #0f172a;
    /* Slate 900 for inverted text */

    /* Brand Colors - Adjusted for better contrast on dark bg if needed */
    --color-brand-navy: #151a33;
    --color-accent-primary: #f29c54;
    /* Brightened Orange */
    --color-accent-secondary: #3b82f6;
    /* Brightened Blue */
    --color-accent-gradient: linear-gradient(180deg, #f29c54 0%, #3b82f6 100%);
    --color-accent-hover: #fcd34d;
    --color-accent-light: rgba(59, 130, 246, 0.15);
    /* Semi-transparent blue */
    --color-accent-border: #475569;

    /* Status Colors - Brightened for dark mode */
    --color-success: #34d399;
    --color-success-hover: #10b981;
    --color-success-light: rgba(16, 185, 129, 0.15);
    --color-success-border: #059669;

    --color-warning: #fbbf24;
    --color-warning-hover: #f59e0b;
    --color-warning-alt: rgba(245, 158, 11, 0.15);
    --color-warning-light: rgba(245, 158, 11, 0.1);
    --color-warning-border: #d97706;

    --color-error: #f87171;
    --color-error-hover: #ef4444;
    --color-error-alt: rgba(239, 68, 68, 0.15);
    --color-error-light: rgba(239, 68, 68, 0.1);
    --color-error-border: #b91c1c;

    --color-info: #60a5fa;
    --color-info-hover: #3b82f6;
    --color-info-light: rgba(59, 130, 246, 0.15);
    --color-info-border: #2563eb;

    /* Static Colors - Inverted or adjusted */
    --color-white: #0f172a;
    /* Used for backgrounds that are normally white */
    --color-black: #ffffff;
    /* Used for text that is normally black */

    /* Borders */
    --color-border: #334155;
    /* Slate 700 */
    --color-border-light: #475569;
    /* Slate 600 */

    /* Shadows - Darker shadows for dark mode depth */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

/* Specific component overrides for things that don't neatly use variables */
[data-theme="dark"] body {
    background-color: var(--color-bg-primary);
}

/* Adjusting Inputs for Dark Mode */
[data-theme="dark"] input:not([type="checkbox"]):not([type="radio"]),
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

[data-theme="dark"] input[readonly],
[data-theme="dark"] input:disabled,
[data-theme="dark"] select:disabled,
[data-theme="dark"] textarea:disabled {
    background-color: var(--color-surface-alt);
    color: var(--color-text-muted);
    border-color: var(--color-border-light);
}

/* Adjust Tables for Dark Mode */
[data-theme="dark"] table th {
    background-color: var(--color-bg-tertiary) !important;
    color: var(--color-text-primary);
    border-bottom: 2px solid var(--color-border) !important;
}

[data-theme="dark"] table td {
    border-bottom: 1px solid var(--color-border) !important;
    color: var(--color-text-secondary);
}

[data-theme="dark"] table tr:hover td {
    background-color: #dd7f30 !important;
    color: #ffffff !important;
}

/* Modals */
[data-theme="dark"] .modal-content {
    background-color: var(--color-bg-secondary);
    border-color: var(--color-border);
}

[data-theme="dark"] .modal-header {
    border-bottom-color: var(--color-border);
}

[data-theme="dark"] .modal-footer {
    border-top-color: var(--color-border);
}

/* Alerts */
[data-theme="dark"] .alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border-color: rgba(16, 185, 129, 0.2);
}

[data-theme="dark"] .alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border-color: rgba(239, 68, 68, 0.2);
}

/* Cards */
[data-theme="dark"] .card,
[data-theme="dark"] .info-card,
[data-theme="dark"] .stat-card {
    background-color: var(--color-bg-secondary);
    border-color: var(--color-border);
}

/* Badges */
[data-theme="dark"] .badge-primary {
    background: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
}

[data-theme="dark"] .badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

[data-theme="dark"] .badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}

[data-theme="dark"] .badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

/* Navigation */
[data-theme="dark"] .top-nav-bar {
    background-color: var(--color-bg-secondary);
    border-bottom-color: var(--color-border);
}

[data-theme="dark"] .top-nav-item:hover {
    background-color: var(--color-surface-hover);
}

[data-theme="dark"] .top-nav-item.active {
    background-color: var(--color-accent-light);
    color: var(--color-accent-primary);
}

/* Theme Toggle Button Specifics */
.theme-toggle-btn {
    background: transparent;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-base);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.theme-toggle-btn:hover {
    background-color: var(--color-surface-hover);
    color: var(--color-text-primary);
}

/* Hide/Show icons based on theme */
.icon-moon,
.icon-sun {
    display: none;
}

[data-theme="light"] .icon-moon,
:root:not([data-theme="dark"]) .icon-moon {
    display: block;
}

[data-theme="dark"] .icon-sun {
    display: block;
}