{{-- Modern Color System for MU Portal --}}
<style>
:root {
    /* === PRIMARY BRAND COLORS === */
    --primary-50: #f0f4ff;
    --primary-100: #e0e9ff;
    --primary-200: #c7d6fe;
    --primary-300: #a5b8fc;
    --primary-400: #8b93f8;
    --primary-500: #7c6df2;
    --primary-600: #6d4de6;
    --primary-700: #5d3dcb;
    --primary-800: #4c32a3;
    --primary-900: #412d82;

    /* === SECONDARY COLORS === */
    --secondary-50: #fdf4ff;
    --secondary-100: #fae8ff;
    --secondary-200: #f5d0fe;
    --secondary-300: #f0abfc;
    --secondary-400: #e879f9;
    --secondary-500: #d946ef;
    --secondary-600: #c026d3;
    --secondary-700: #a21caf;
    --secondary-800: #86198f;
    --secondary-900: #701a75;

    /* === SUCCESS COLORS === */
    --success-50: #ecfdf5;
    --success-100: #d1fae5;
    --success-200: #a7f3d0;
    --success-300: #6ee7b7;
    --success-400: #34d399;
    --success-500: #10b981;
    --success-600: #059669;
    --success-700: #047857;
    --success-800: #065f46;
    --success-900: #064e3b;

    /* === WARNING COLORS === */
    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-200: #fde68a;
    --warning-300: #fcd34d;
    --warning-400: #fbbf24;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --warning-700: #b45309;
    --warning-800: #92400e;
    --warning-900: #78350f;

    /* === ERROR COLORS === */
    --error-50: #fef2f2;
    --error-100: #fee2e2;
    --error-200: #fecaca;
    --error-300: #fca5a5;
    --error-400: #f87171;
    --error-500: #ef4444;
    --error-600: #dc2626;
    --error-700: #b91c1c;
    --error-800: #991b1b;
    --error-900: #7f1d1d;

    /* === NEUTRAL COLORS === */
    --neutral-50: #f8fafc;
    --neutral-100: #f1f5f9;
    --neutral-200: #e2e8f0;
    --neutral-300: #cbd5e1;
    --neutral-400: #94a3b8;
    --neutral-500: #64748b;
    --neutral-600: #475569;
    --neutral-700: #334155;
    --neutral-800: #1e293b;
    --neutral-900: #0f172a;

    /* === GRADIENTS === */
    --gradient-primary: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    --gradient-success: linear-gradient(135deg, var(--success-500), var(--success-600));
    --gradient-warning: linear-gradient(135deg, var(--warning-500), var(--warning-600));
    --gradient-error: linear-gradient(135deg, var(--error-500), var(--error-600));
    --gradient-background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));

    /* === SEMANTIC COLORS === */
    --color-background: var(--neutral-50);
    --color-surface: #ffffff;
    --color-text-primary: var(--neutral-900);
    --color-text-secondary: var(--neutral-600);
    --color-text-muted: var(--neutral-400);
    --color-border: var(--neutral-200);
    --color-border-hover: var(--neutral-300);

    /* === 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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-colored: 0 10px 15px -3px rgba(124, 109, 242, 0.1), 0 4px 6px -2px rgba(124, 109, 242, 0.05);

    /* === SPACING === */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* === BORDER RADIUS === */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* === TRANSITIONS === */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* === DARK MODE === */
[data-theme="dark"] {
    --color-background: var(--neutral-900);
    --color-surface: var(--neutral-800);
    --color-text-primary: var(--neutral-100);
    --color-text-secondary: var(--neutral-300);
    --color-text-muted: var(--neutral-500);
    --color-border: var(--neutral-700);
    --color-border-hover: var(--neutral-600);
    --gradient-background: linear-gradient(135deg, var(--neutral-900), var(--neutral-800));
}

/* === UTILITY CLASSES === */
.bg-primary { background: var(--gradient-primary); }
.bg-success { background: var(--gradient-success); }
.bg-warning { background: var(--gradient-warning); }
.bg-error { background: var(--gradient-error); }

.text-primary { color: var(--primary-500); }
.text-success { color: var(--success-500); }
.text-warning { color: var(--warning-500); }
.text-error { color: var(--error-500); }

.border-primary { border-color: var(--primary-300); }
.border-success { border-color: var(--success-300); }
.border-warning { border-color: var(--warning-300); }
.border-error { border-color: var(--error-300); }

/* === COMPONENT STYLES === */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border-hover);
}

.btn {
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    font-weight: 600;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-colored);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
}

.btn-warning {
    background: var(--gradient-warning);
    color: white;
}

.btn-error {
    background: var(--gradient-error);
    color: white;
}

/* === GLASS MORPHISM === */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-xl);
}

[data-theme="dark"] .glass {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* === ANIMATIONS === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.animate-fade-in { animation: fadeIn 0.3s ease-out; }
.animate-slide-in { animation: slideIn 0.3s ease-out; }
.animate-pulse { animation: pulse 2s infinite; }

/* === RESPONSIVE UTILITIES === */
@media (max-width: 768px) {
    :root {
        --space-xs: 0.125rem;
        --space-sm: 0.375rem;
        --space-md: 0.75rem;
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
    }
}
</style>

{{-- Theme Toggle Component --}}
<div class="theme-toggle" onclick="toggleTheme()">
    <i class="fas fa-moon" id="theme-icon"></i>
</div>

<style>
.theme-toggle {
    position: fixed;
    top: 80px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

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

.theme-toggle i {
    color: var(--color-text-primary);
    font-size: 1rem;
    transition: var(--transition-normal);
}

@media (max-width: 768px) {
    .theme-toggle {
        top: 70px;
        right: 15px;
        width: 40px;
        height: 40px;
    }
}
</style>

<script>
function toggleTheme() {
    const html = document.documentElement;
    const icon = document.getElementById('theme-icon');
    
    if (html.getAttribute('data-theme') === 'dark') {
        html.removeAttribute('data-theme');
        icon.className = 'fas fa-moon';
        localStorage.setItem('theme', 'light');
    } else {
        html.setAttribute('data-theme', 'dark');
        icon.className = 'fas fa-sun';
        localStorage.setItem('theme', 'dark');
    }
}

// Load saved theme
document.addEventListener('DOMContentLoaded', function() {
    const savedTheme = localStorage.getItem('theme');
    const icon = document.getElementById('theme-icon');
    
    if (savedTheme === 'dark') {
        document.documentElement.setAttribute('data-theme', 'dark');
        icon.className = 'fas fa-sun';
    }
});
</script>