/* Modern Theme CSS - Shared across all pages */

:root {
    /* Modern Color Palette */
    --primary-blue: #667eea;
    --primary-purple: #764ba2;
    --primary-pink: #f093fb;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-hero: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.8) 100%);
    
    /* Text Colors */
    --text-dark: #1e293b;
    --text-medium: #64748b;
    --text-light: #94a3b8;
    
    /* Background Colors */
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-glass: rgba(255, 255, 255, 0.95);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Modern Navigation */
.modern-nav {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.modern-nav.scrolled {
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
}

/* Gradient Backgrounds */
.gradient-bg {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.gradient-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
}

/* Animated Background Shapes */
.bg-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

/* Static background shapes - no animations for accessibility */
.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.3;
}

.shape1 {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.3);
    top: -150px;
    left: -150px;
}

.shape2 {
    width: 400px;
    height: 400px;
    background: rgba(240, 147, 251, 0.3);
    bottom: -200px;
    right: -200px;
}

.shape3 {
    width: 250px;
    height: 250px;
    background: rgba(102, 126, 234, 0.3);
    top: 50%;
    left: 50%;
}

/* Glass Cards */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

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

/* Modern Buttons */
.btn-modern {
    padding: 0.75rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--primary-blue);
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: -1;
    margin: -2px;
    border-radius: inherit;
    background: var(--gradient-primary);
}

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

/* Modern Forms */
.form-modern {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.input-modern {
    padding: 0.9rem 1.25rem;
    border: 2px solid #e5e7eb;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
    width: 100%;
}

.input-modern:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Choice Cards */
.choice-card {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.choice-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.choice-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.choice-card.selected {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: scale(1.02);
}

.choice-card.selected::before {
    opacity: 0.1;
}

/* Section Styles */
.section-modern {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-medium);
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
    line-height: 1.8;
}

/* Feature Cards */
.feature-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--text-medium);
    line-height: 1.8;
    flex-grow: 1;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

/* Progress Bar */
.progress-container {
    background: #e5e7eb;
    height: 4px;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.5s ease;
}

/* Loading States - Accessible, no spinning animations */
.loading-spinner {
    text-align: center;
    padding: 2rem;
    margin: 0 auto;
}

/* Responsive Design */
@media (max-width: 1200px) {
    :root {
        --spacing-3xl: 3rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1.1rem;
    }
    
    .btn-modern {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.25rem;
        --spacing-2xl: 1.5rem;
    }
    
    .glass-card {
        padding: var(--spacing-lg);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mt-5 { margin-top: var(--spacing-2xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.mb-5 { margin-bottom: var(--spacing-2xl); }

.fade-in { animation: fadeIn 0.6s ease-out; }
.fade-in-up { animation: fadeInUp 0.6s ease-out; }
.slide-in-left { animation: slideInLeft 0.6s ease-out; }
.slide-in-right { animation: slideInRight 0.6s ease-out; }

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