/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background-color: #ffffff;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    color: #1a365d;
    text-align: center;
    margin-bottom: 3rem;
}

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #16a34a, #15803d);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(34, 197, 94, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #22c55e;
    border: 2px solid #22c55e;
}

.btn-secondary:hover {
    background: #22c55e;
    color: white;
    transform: translateY(-2px);
}

/* Header and Navigation */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #22c55e;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger {
    width: 25px;
    height: 3px;
    background: #4a5568;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-link {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: #22c55e;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 3rem;
        transition: right 0.3s ease;
        padding: 2rem;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-item {
        opacity: 0;
        transform: translateX(50px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }
    
    .nav-menu.active .nav-item {
        opacity: 1;
        transform: translateX(0);
    }
    
    .nav-menu.active .nav-item:nth-child(1) { transition-delay: 0.1s; }
    .nav-menu.active .nav-item:nth-child(2) { transition-delay: 0.2s; }
    .nav-menu.active .nav-item:nth-child(3) { transition-delay: 0.3s; }
    .nav-menu.active .nav-item:nth-child(4) { transition-delay: 0.4s; }
    
    .nav-link {
        font-size: 1.5rem;
        font-weight: 600;
        color: #1a365d;
    }
    
    .nav-toggle.active .hamburger:nth-child(1) {
        transform: rotate(-45deg) translate(-6px, 6px);
        background: #22c55e;
    }
    
    .nav-toggle.active .hamburger:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .hamburger:nth-child(3) {
        transform: rotate(45deg) translate(-6px, -6px);
        background: #22c55e;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    padding: 8rem 0 6rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1), transparent);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #1a365d;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.75rem;
    font-weight: 500;
    color: #22c55e;
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.25rem;
    color: #4a5568;
    max-width: 600px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: white;
}

.section-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-description {
    font-size: 1.125rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #4a5568;
}

.about-audience h3 {
    font-size: 1.5rem;
    color: #1a365d;
    text-align: center;
    margin-bottom: 2rem;
}

.audience-list {
    list-style: none;
    display: grid;
    gap: 1.5rem;
}

.audience-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: #f7fafc;
    border-radius: 12px;
    border-left: 4px solid #22c55e;
}

.audience-list .icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* Course Section */
.course {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
}

.course-steps {
    display: grid;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.step:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.step-icon {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-number {
    font-weight: 700;
    font-size: 1.25rem;
}

.step-content h4 {
    font-size: 1.25rem;
    color: #1a365d;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: #4a5568;
    margin: 0;
}

/* Benefits Section */
.benefits {
    padding: 6rem 0;
    background: white;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-card {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: #f7fafc;
    border-radius: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.benefit-card h4 {
    font-size: 1.25rem;
    color: #1a365d;
    margin-bottom: 1rem;
}

.benefit-card p {
    color: #4a5568;
    margin: 0;
}

/* Newsletter Section */
.newsletter {
    padding: 6rem 0;
    background: linear-gradient(135deg, #1e293b, #334155);
    color: white;
}

.newsletter .section-title {
    color: white;
}

.newsletter-description {
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: 3rem;
    color: #cbd5e1;
}

.newsletter-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #e2e8f0;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #475569;
    border-radius: 8px;
    background: #334155;
    color: white;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #22c55e;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: #f7fafc;
}

.contact-description {
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: 3rem;
    color: #4a5568;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form .form-group input,
.contact-form .form-group textarea {
    background: white;
    color: #2d3748;
    border: 2px solid #e2e8f0;
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
    border-color: #22c55e;
}

.contact-form .form-group label {
    color: #2d3748;
}

/* Footer */
.footer {
    background: #1a202c;
    color: #cbd5e1;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand .logo {
    color: #22c55e;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: #94a3b8;
    margin: 0;
}

.footer-links h4,
.footer-social h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #22c55e;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: inline-block;
    width: 2.5rem;
    height: 2.5rem;
    background: #374151;
    border-radius: 8px;
    text-align: center;
    line-height: 2.5rem;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.social-links a:hover {
    background: #22c55e;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
}

.footer-bottom p {
    margin: 0;
    color: #94a3b8;
}

/* Additional Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .step {
        padding: 1.5rem;
    }
    
    .benefit-card {
        padding: 2rem 1rem;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for keyboard navigation */
.btn:focus,
input:focus,
select:focus,
textarea:focus,
.nav-menu a:focus {
    outline: 2px solid #22c55e;
    outline-offset: 2px;
}