/* ========================================
   QUIZZMAN LMS - ENHANCED THEMES
   Modern, High-Contrast, Accessible Themes
   ======================================== */

/* Base Theme Variables */
:root {
    /* Animation and Transition */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Common Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
}

/* ========================================
   OCEAN BLUE THEME (Default)
   Professional, calming, high contrast
   ======================================== */
:root,
[data-theme="ocean"] {
    /* Primary Colors */
    --primary-color: #0ea5e9;
    --primary-hover: #0284c7;
    --primary-light: #e0f2fe;
    --primary-dark: #0c4a6e;
    
    /* Secondary Colors */
    --secondary-color: #06b6d4;
    --secondary-hover: #0891b2;
    --secondary-light: #cffafe;
    --secondary-dark: #164e63;
    
    /* Accent Colors */
    --accent-color: #8b5cf6;
    --accent-hover: #7c3aed;
    --accent-light: #f3e8ff;
    --accent-dark: #581c87;
    
    /* Background Colors */
    --background-color: #f8fafc;
    --surface-color: #ffffff;
    --card-color: #ffffff;
    --hover-color: #f1f5f9;
    
    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    --border-focus: #0ea5e9;
    
    /* Status Colors */
    --success-color: #10b981;
    --success-light: #d1fae5;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --error-color: #ef4444;
    --error-light: #fee2e2;
    --info-color: #3b82f6;
    --info-light: #dbeafe;
    
    /* Shadows */
    --shadow-color: rgba(15, 23, 42, 0.1);
    --shadow-hover: rgba(15, 23, 42, 0.15);
    
    /* Header */
    --header-bg: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    --header-text: #ffffff;
}

/* ========================================
   SUNSET THEME
   Warm, energetic, high contrast
   ======================================== */
[data-theme="sunset"] {
    /* Primary Colors */
    --primary-color: #f97316;
    --primary-hover: #ea580c;
    --primary-light: #fed7aa;
    --primary-dark: #9a3412;
    
    /* Secondary Colors */
    --secondary-color: #ef4444;
    --secondary-hover: #dc2626;
    --secondary-light: #fecaca;
    --secondary-dark: #991b1b;
    
    /* Accent Colors */
    --accent-color: #ec4899;
    --accent-hover: #db2777;
    --accent-light: #fce7f3;
    --accent-dark: #831843;
    
    /* Background Colors */
    --background-color: #fefbf3;
    --surface-color: #ffffff;
    --card-color: #ffffff;
    --hover-color: #fef7ed;
    
    /* Text Colors */
    --text-primary: #1c1917;
    --text-secondary: #57534e;
    --text-muted: #78716c;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border-color: #e7e5e4;
    --border-hover: #d6d3d1;
    --border-focus: #f97316;
    
    /* Status Colors */
    --success-color: #22c55e;
    --success-light: #dcfce7;
    --warning-color: #eab308;
    --warning-light: #fef9c3;
    --error-color: #ef4444;
    --error-light: #fee2e2;
    --info-color: #3b82f6;
    --info-light: #dbeafe;
    
    /* Shadows */
    --shadow-color: rgba(28, 25, 23, 0.1);
    --shadow-hover: rgba(28, 25, 23, 0.15);
    
    /* Header */
    --header-bg: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
    --header-text: #ffffff;
}

/* ========================================
   FOREST THEME
   Natural, calming, earthy tones
   ======================================== */
[data-theme="forest"] {
    /* Primary Colors */
    --primary-color: #059669;
    --primary-hover: #047857;
    --primary-light: #d1fae5;
    --primary-dark: #064e3b;
    
    /* Secondary Colors */
    --secondary-color: #0d9488;
    --secondary-hover: #0f766e;
    --secondary-light: #ccfbf1;
    --secondary-dark: #134e4a;
    
    /* Accent Colors */
    --accent-color: #7c3aed;
    --accent-hover: #6d28d9;
    --accent-light: #f3e8ff;
    --accent-dark: #581c87;
    
    /* Background Colors */
    --background-color: #f7fdf7;
    --surface-color: #ffffff;
    --card-color: #ffffff;
    --hover-color: #f0fdf4;
    
    /* Text Colors */
    --text-primary: #14532d;
    --text-secondary: #166534;
    --text-muted: #22c55e;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border-color: #dcfce7;
    --border-hover: #bbf7d0;
    --border-focus: #059669;
    
    /* Status Colors */
    --success-color: #10b981;
    --success-light: #d1fae5;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --error-color: #ef4444;
    --error-light: #fee2e2;
    --info-color: #06b6d4;
    --info-light: #cffafe;
    
    /* Shadows */
    --shadow-color: rgba(20, 83, 45, 0.1);
    --shadow-hover: rgba(20, 83, 45, 0.15);
    
    /* Header */
    --header-bg: linear-gradient(135deg, #059669 0%, #0d9488 100%);
    --header-text: #ffffff;
}

/* ========================================
   MIDNIGHT THEME
   Dark, professional, high contrast
   ======================================== */
[data-theme="midnight"] {
    /* Primary Colors */
    --primary-color: #60a5fa;
    --primary-hover: #3b82f6;
    --primary-light: #1e293b;
    --primary-dark: #1e40af;
    
    /* Secondary Colors */
    --secondary-color: #34d399;
    --secondary-hover: #10b981;
    --secondary-light: #1f2937;
    --secondary-dark: #047857;
    
    /* Accent Colors */
    --accent-color: #f472b6;
    --accent-hover: #ec4899;
    --accent-light: #1e1b2e;
    --accent-dark: #be185d;
    
    /* Background Colors */
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --card-color: #334155;
    --hover-color: #475569;
    
    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #94a3b8;
    --text-inverse: #0f172a;
    
    /* Border Colors */
    --border-color: #475569;
    --border-hover: #64748b;
    --border-focus: #60a5fa;
    
    /* Status Colors */
    --success-color: #34d399;
    --success-light: #1f2937;
    --warning-color: #fbbf24;
    --warning-light: #1f2937;
    --error-color: #f87171;
    --error-light: #1f2937;
    --info-color: #60a5fa;
    --info-light: #1f2937;
    
    /* Shadows */
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.4);
    
    /* Header */
    --header-bg: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    --header-text: #f8fafc;
}

/* ========================================
   COSMIC THEME
   Deep space, vibrant accents
   ======================================== */
[data-theme="cosmic"] {
    /* Primary Colors */
    --primary-color: #a855f7;
    --primary-hover: #9333ea;
    --primary-light: #1e1b2e;
    --primary-dark: #7e22ce;
    
    /* Secondary Colors */
    --secondary-color: #06b6d4;
    --secondary-hover: #0891b2;
    --secondary-light: #1e1b2e;
    --secondary-dark: #0e7490;
    
    /* Accent Colors */
    --accent-color: #f59e0b;
    --accent-hover: #d97706;
    --accent-light: #1e1b2e;
    --accent-dark: #b45309;
    
    /* Background Colors */
    --background-color: #0c0a15;
    --surface-color: #1a1625;
    --card-color: #2d1b3d;
    --hover-color: #3d2352;
    
    /* Text Colors */
    --text-primary: #f3e8ff;
    --text-secondary: #d8b4fe;
    --text-muted: #a78bfa;
    --text-inverse: #0c0a15;
    
    /* Border Colors */
    --border-color: #4c1d95;
    --border-hover: #5b21b6;
    --border-focus: #a855f7;
    
    /* Status Colors */
    --success-color: #10b981;
    --success-light: #1e1b2e;
    --warning-color: #f59e0b;
    --warning-light: #1e1b2e;
    --error-color: #ef4444;
    --error-light: #1e1b2e;
    --info-color: #06b6d4;
    --info-light: #1e1b2e;
    
    /* Shadows */
    --shadow-color: rgba(0, 0, 0, 0.5);
    --shadow-hover: rgba(0, 0, 0, 0.6);
    
    /* Header */
    --header-bg: linear-gradient(135deg, #a855f7 0%, #06b6d4 100%);
    --header-text: #ffffff;
}

/* ========================================
   CHERRY BLOSSOM THEME
   Soft, elegant, spring-inspired
   ======================================== */
[data-theme="sakura"] {
    /* Primary Colors */
    --primary-color: #ec4899;
    --primary-hover: #db2777;
    --primary-light: #fdf2f8;
    --primary-dark: #be185d;
    
    /* Secondary Colors */
    --secondary-color: #8b5cf6;
    --secondary-hover: #7c3aed;
    --secondary-light: #f3e8ff;
    --secondary-dark: #6d28d9;
    
    /* Accent Colors */
    --accent-color: #06b6d4;
    --accent-hover: #0891b2;
    --accent-light: #ecfeff;
    --accent-dark: #0e7490;
    
    /* Background Colors */
    --background-color: #fefcfe;
    --surface-color: #ffffff;
    --card-color: #ffffff;
    --hover-color: #fdf2f8;
    
    /* Text Colors */
    --text-primary: #831843;
    --text-secondary: #be185d;
    --text-muted: #ec4899;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border-color: #fce7f3;
    --border-hover: #fbcfe8;
    --border-focus: #ec4899;
    
    /* Status Colors */
    --success-color: #059669;
    --success-light: #d1fae5;
    --warning-color: #d97706;
    --warning-light: #fed7aa;
    --error-color: #dc2626;
    --error-light: #fecaca;
    --info-color: #0284c7;
    --info-light: #e0f2fe;
    
    /* Shadows */
    --shadow-color: rgba(131, 24, 67, 0.1);
    --shadow-hover: rgba(131, 24, 67, 0.15);
    
    /* Header */
    --header-bg: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
    --header-text: #ffffff;
}

/* ========================================
   ELECTRIC THEME
   High energy, neon-inspired
   ======================================== */
[data-theme="electric"] {
    /* Primary Colors */
    --primary-color: #00ff88;
    --primary-hover: #00e676;
    --primary-light: #0a0a0a;
    --primary-dark: #00c853;
    
    /* Secondary Colors */
    --secondary-color: #00e5ff;
    --secondary-hover: #00b8d4;
    --secondary-light: #0a0a0a;
    --secondary-dark: #0091ea;
    
    /* Accent Colors */
    --accent-color: #ff1744;
    --accent-hover: #d50000;
    --accent-light: #0a0a0a;
    --accent-dark: #c62828;
    
    /* Background Colors */
    --background-color: #000000;
    --surface-color: #121212;
    --card-color: #1e1e1e;
    --hover-color: #2a2a2a;
    
    /* Text Colors */
    --text-primary: #00ff88;
    --text-secondary: #00e5ff;
    --text-muted: #888888;
    --text-inverse: #000000;
    
    /* Border Colors */
    --border-color: #333333;
    --border-hover: #444444;
    --border-focus: #00ff88;
    
    /* Status Colors */
    --success-color: #00ff88;
    --success-light: #0a0a0a;
    --warning-color: #ffeb3b;
    --warning-light: #0a0a0a;
    --error-color: #ff1744;
    --error-light: #0a0a0a;
    --info-color: #00e5ff;
    --info-light: #0a0a0a;
    
    /* Shadows */
    --shadow-color: rgba(0, 255, 136, 0.2);
    --shadow-hover: rgba(0, 255, 136, 0.3);
    
    /* Header */
    --header-bg: linear-gradient(135deg, #00ff88 0%, #00e5ff 100%);
    --header-text: #000000;
}

/* ========================================
   RETRO WAVE THEME
   80s inspired, synthwave aesthetic
   ======================================== */
[data-theme="retrowave"] {
    /* Primary Colors */
    --primary-color: #ff00ff;
    --primary-hover: #e600e6;
    --primary-light: #1a0d1a;
    --primary-dark: #cc00cc;
    
    /* Secondary Colors */
    --secondary-color: #00ffff;
    --secondary-hover: #00e6e6;
    --secondary-light: #0d1a1a;
    --secondary-dark: #00cccc;
    
    /* Accent Colors */
    --accent-color: #ffff00;
    --accent-hover: #e6e600;
    --accent-light: #1a1a0d;
    --accent-dark: #cccc00;
    
    /* Background Colors */
    --background-color: #0d0208;
    --surface-color: #1a0f1a;
    --card-color: #2d1b2d;
    --hover-color: #3d2b3d;
    
    /* Text Colors */
    --text-primary: #ff00ff;
    --text-secondary: #00ffff;
    --text-muted: #888888;
    --text-inverse: #0d0208;
    
    /* Border Colors */
    --border-color: #ff00ff;
    --border-hover: #00ffff;
    --border-focus: #ffff00;
    
    /* Status Colors */
    --success-color: #00ff00;
    --success-light: #0d1a0d;
    --warning-color: #ffff00;
    --warning-light: #1a1a0d;
    --error-color: #ff0040;
    --error-light: #1a0d10;
    --info-color: #00ffff;
    --info-light: #0d1a1a;
    
    /* Shadows */
    --shadow-color: rgba(255, 0, 255, 0.3);
    --shadow-hover: rgba(255, 0, 255, 0.5);
    
    /* Header */
    --header-bg: linear-gradient(135deg, #ff00ff 0%, #00ffff 100%);
    --header-text: #000000;
}

/* ========================================
   THEME-SPECIFIC ENHANCEMENTS
   ======================================== */

/* Enhanced button styles for better contrast */
.btn {
    font-weight: 600;
    letter-spacing: 0.025em;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: var(--text-inverse);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(var(--primary-color), 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-dark));
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(var(--primary-color), 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-hover));
    color: var(--text-inverse);
    border-color: var(--secondary-color);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--secondary-hover), var(--secondary-dark));
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-inverse);
}


/* Enhanced input styles */
input, select, textarea {
    background: var(--surface-color);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

input:focus, select:focus, textarea:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(var(--primary-color), 0.1);
}

/* Theme-specific glows and effects */
[data-theme="electric"] .btn-primary,
[data-theme="retrowave"] .btn-primary,
[data-theme="cosmic"] .btn-primary {
    box-shadow: 0 0 20px rgba(var(--primary-color), 0.5);
}

[data-theme="electric"] .card,
[data-theme="retrowave"] .card {
    box-shadow: 0 0 20px rgba(var(--primary-color), 0.1);
}

/* Improved text contrast */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
}

p, span, div {
    color: var(--text-secondary);
}

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

/* Status color improvements */
.success { color: var(--success-color); background: var(--success-light); }
.warning { color: var(--warning-color); background: var(--warning-light); }
.error { color: var(--error-color); background: var(--error-light); }
.info { color: var(--info-color)}

/* Theme transition animations */
* {
    transition: background-color var(--transition-normal),
                color var(--transition-normal),
                border-color var(--transition-normal),
                box-shadow var(--transition-normal);
}

/* ========================================
   HOMEWORK SYSTEM THEME MAPPINGS
   ======================================== */

/* Map homework theme names to color schemes */
[data-theme="scifi"] {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #3b82f6;
    --surface-color: #f8fafc;
    --surface-hover: #f1f5f9;
    --background-color: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
}

[data-theme="heaven"] {
    --primary-color: #7c3aed;
    --primary-hover: #6d28d9;
    --secondary-color: #a78bfa;
    --accent-color: #8b5cf6;
    --surface-color: #fefbff;
    --surface-hover: #f3f4f6;
    --background-color: #ffffff;
    --border-color: #e5e7eb;
    --text-primary: #374151;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
}

[data-theme="space"] {
    --primary-color: #0891b2;
    --primary-hover: #0e7490;
    --secondary-color: #64748b;
    --accent-color: #06b6d4;
    --surface-color: #0c1222;
    --surface-hover: #1e293b;
    --background-color: #020617;
    --border-color: #334155;
    --text-primary: #f0f9ff;
    --text-secondary: #bae6fd;
    --text-muted: #7dd3fc;
}

[data-theme="nature"] {
    --primary-color: #16a34a;
    --primary-hover: #15803d;
    --secondary-color: #65a30d;
    --accent-color: #22c55e;
    --surface-color: #f0fdf4;
    --surface-hover: #dcfce7;
    --background-color: #ecfdf5;
    --border-color: #bbf7d0;
    --text-primary: #14532d;
    --text-secondary: #166534;
    --text-muted: #16a34a;
}

/* ========================================
   BACKGROUND PATTERNS
   ======================================== */

body[data-background="default"] {
    background: var(--background-color);
}

body[data-background="grid"] {
    background-color: var(--background-color);
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 20px 20px;
}

body[data-background="wave"] {
    background-color: var(--background-color);
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(37, 99, 235, 0.08) 0%, transparent 50%);
}

/* Settings Components */
.settings-chip {
    padding: 8px 16px;
    border: 2px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-primary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
    font-weight: 500;
    font-size: 0.875rem;
}

.settings-chip:hover {
    border-color: var(--primary-color);
    background: var(--surface-hover);
    transform: translateY(-1px);
}

.settings-chip.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Modal Enhancements */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--surface-color);
    border-radius: 16px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    z-index: 1001;
}

.settings-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    margin-top: 1.5rem;
}