:root {
    --primary: #1a2980;
    --secondary: #26d0ce;
    --light: #f8fafc;
    --border: #e2e8f0;
    --text-main: #1a2980;
    --text-secondary: #64748b;
    --text-accent: #26d0ce;
    --text-light: #ffffff;
    --shadow-sm: 0 2px 8px rgba(26, 41, 128, 0.08);
    --shadow-md: 0 4px 16px rgba(26, 41, 128, 0.12);
    --shadow-lg: 0 8px 32px rgba(26, 41, 128, 0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s ease;
}

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

body {
    background: white;
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Gradient Sections */
.gradient-bg {
    background: linear-gradient(135deg, #1a2980 0%, #26d0ce 100%);
    color: white;
}


/* Buttons */
.btn {
    padding: 12px 28px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--text-light);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary), #1fb5b3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #f8fafc, #e0f2fe);
}

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

/* Hero Section */
.hero {
    padding: 100px 0;
}

.hero.gradient-bg {
    padding: 120px 0;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 8px 24px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    border: 2px solid var(--border);
}

.hero h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero.gradient-bg h2 {
    color: white;
}

.hero p {
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero.gradient-bg p {
    color: rgba(255, 255, 255, 0.9);
}

/* Section Common Styles */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.gradient-bg .section-header h3 {
    color: white;
}

.gradient-bg .section-header p {
    color: rgba(255, 255, 255, 0.9);
}

/* Card Styles */
.card {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.light-card {
    background: var(--light);
}

.light-card:hover {
    background: linear-gradient(135deg, #f8fafc, #e0f2fe);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: var(--secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: white;
    font-size: 24px;
    border: 2px solid var(--border);
}

.card h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.card p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Courses Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.course-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.course-header {
    padding: 32px;
    border-bottom: 2px solid var(--border);
}

.course-badge {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
    border: 2px solid var(--border);
}

.course-price {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    margin-top: 16px;
}

.course-price span {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
}

.course-features {
    padding: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.feature-item i {
    color: var(--secondary);
    width: 20px;
}



/* Form */
.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    background: var(--light);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    background: white;
    box-shadow: 0 0 0 3px rgba(38, 208, 206, 0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}


/* Notification */
.notification {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: white;
    border: 2px solid var(--secondary);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    display: none;
    z-index: 1000;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification.show {
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 36px;
    }
    
    .section-header h3 {
        font-size: 28px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .card {
        padding: 24px;
    }
}