/* ============================================================================
   THEME SYSTEM - Dark & Light Mode
   ============================================================================ */

:root {
    /* Light Theme Colors */
    --light-bg-primary: #ffffff;
    --light-bg-secondary: #f9fafb;
    --light-bg-tertiary: #f3f4f6;
    --light-bg-elevated: #ffffff;

    --light-text-primary: #111827;
    --light-text-secondary: #6b7280;
    --light-text-tertiary: #9ca3af;
    --light-text-muted: #d1d5db;

    --light-border: #e5e7eb;
    --light-border-light: #f3f4f6;

    /* Dark Theme Colors */
    --dark-bg-primary: #0a0a0a;
    --dark-bg-secondary: #111111;
    --dark-bg-tertiary: #1a1a1a;
    --dark-bg-elevated: #1f1f1f;

    --dark-text-primary: #ffffff;
    --dark-text-secondary: #9ca3af;
    --dark-text-tertiary: #6b7280;
    --dark-text-muted: #4b5563;

    --dark-border: #2d2d2d;
    --dark-border-light: #3d3d3d;

    /* Accent Colors (same for both themes) */
    --color-accent: #5e6ad2;
    --color-accent-hover: #4f5bc4;
    --color-accent-light: rgba(94, 106, 210, 0.1);

    /* Status Colors (same for both themes) */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Dark Theme (Default) */
[data-theme="dark"] {
    --color-bg-primary: var(--dark-bg-primary);
    --color-bg-secondary: var(--dark-bg-secondary);
    --color-bg-tertiary: var(--dark-bg-tertiary);
    --color-bg-elevated: var(--dark-bg-elevated);

    --color-text-primary: var(--dark-text-primary);
    --color-text-secondary: var(--dark-text-secondary);
    --color-text-tertiary: var(--dark-text-tertiary);
    --color-text-muted: var(--dark-text-muted);

    --color-border: var(--dark-border);
    --color-border-light: var(--dark-border-light);
}

/* Light Theme */
[data-theme="light"] {
    --color-bg-primary: var(--light-bg-primary);
    --color-bg-secondary: var(--light-bg-secondary);
    --color-bg-tertiary: var(--light-bg-tertiary);
    --color-bg-elevated: var(--light-bg-elevated);

    --color-text-primary: var(--light-text-primary);
    --color-text-secondary: var(--light-text-secondary);
    --color-text-tertiary: var(--light-text-tertiary);
    --color-text-muted: var(--light-text-muted);

    --color-border: var(--light-border);
    --color-border-light: var(--light-border-light);

    /* Adjust shadows for light mode */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    font-size: 1.5rem;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* Hide theme icons based on active theme */
[data-theme="dark"] .theme-toggle .light-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .dark-icon {
    display: none;
}

/* Smooth transition for theme changes */
body,
.header,
.card,
.btn,
.form-control,
.modal-content,
.listing-card,
.category-card {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .theme-toggle {
        bottom: 1rem;
        right: 1rem;
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
}