/* Prince Panel - Enhanced Custom CSS Framework */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --primary-dark: #5a6fd8;
    --secondary-color: #764ba2;
    --accent-color: #ff6b6b;
    --success-color: #51cf66;
    --warning-color: #ffd43b;
    --danger-color: #ff6b6b;
    --info-color: #74c0fc;
    
    /* Neutral Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e2e8f0;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Dark Mode Colors */
    --dark-bg-primary: #1a202c;
    --dark-bg-secondary: #2d3748;
    --dark-bg-tertiary: #4a5568;
    --dark-text-primary: #f7fafc;
    --dark-text-secondary: #e2e8f0;
    --dark-text-muted: #a0aec0;
    --dark-border-color: #4a5568;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-primary: var(--dark-bg-primary);
    --bg-secondary: var(--dark-bg-secondary);
    --bg-tertiary: var(--dark-bg-tertiary);
    --text-primary: var(--dark-text-primary);
    --text-secondary: var(--dark-text-secondary);
    --text-muted: var(--dark-text-muted);
    --border-color: var(--dark-border-color);
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    transition: all var(--transition-normal);
}

/* Enhanced Buttons */
.btn-enhanced {
    position: relative;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    overflow: hidden;
    cursor: pointer;
}

.btn-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-enhanced:hover::before {
    left: 100%;
}

.btn-enhanced:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-primary-enhanced:hover {
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

/* Enhanced Cards */
.card-enhanced {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
}

.card-enhanced:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* Glassmorphism Effect */
.glass-card {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    padding: var(--spacing-xl);
}

[data-theme="dark"] .glass-card {
    background: rgba(45, 55, 72, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.float-animation {
    animation: float 6s ease-in-out infinite;
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease forwards;
}

.pulse-animation {
    animation: pulse 2s ease-in-out infinite;
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    position: relative;
    margin: 20px auto;
}

.spinner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

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

/* Hero Section */
.hero-section {
    background: var(--primary-gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 20"><defs><pattern id="grain" width="100" height="20" patternUnits="userSpaceOnUse"><circle cx="50" cy="10" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="20" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

/* Responsive Design */
@media (max-width: 768px) {
    .card-enhanced {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-md);
    }
    
    .btn-enhanced {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .dark-mode-toggle {
        top: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
    }
}

/* Utility Classes */
.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.border-gradient {
    border: 2px solid;
    border-image: var(--primary-gradient) 1;
}

.hover-scale:hover {
    transform: scale(1.05);
    transition: transform var(--transition-normal);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
    transition: box-shadow var(--transition-normal);
}

/* Form Enhancements */
.form-enhanced .form-control {
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    padding: 0.75rem 1rem;
    transition: all var(--transition-normal);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-enhanced .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    outline: none;
}

.form-enhanced .form-label {
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

/* Navigation Enhancements */
.nav-enhanced {
    background: var(--bg-primary);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-enhanced .nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.nav-enhanced .nav-link:hover,
.nav-enhanced .nav-link.active {
    background: var(--primary-gradient);
    color: white;
    transform: translateY(-2px);
}