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

:root {
    --primary-blue: #2563eb;
    --primary-blue-dark: #1d4ed8;
    --primary-blue-light: #3b82f6;
    --accent-blue: #60a5fa;
    --white: #ffffff;
    --light-gray: #f8fafc;
    --medium-gray: #e2e8f0;
    --dark-gray: #64748b;
    --text-dark: #1e293b;
    --text-light: #475569;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    color: var(--dark-gray);
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--text-dark);
}

.logo-icon {
    color: var(--primary-blue);
    margin-right: 10px;
    font-size: 1.8rem;
}

.logo-accent {
    color: var(--primary-blue);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-blue);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-blue);
}

.header-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-login {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.6rem 1.2rem;
    background-color: transparent;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-login:hover {
    background-color: var(--light-gray);
}

.btn-register {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background-color: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-register:hover {
    background-color: var(--primary-blue-dark);
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* Hero Section */
.hero-section {
    padding: 10rem 0 6rem;
    background: linear-gradient(to bottom, #f8fafc, #ffffff);
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero-text {
    flex: 1;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 90%;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn-primary {
    display: inline-block;
    padding: 0.9rem 2rem;
    background-color: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background-color: var(--primary-blue-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.9rem 2rem;
    background-color: var(--white);
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid var(--medium-gray);
}

.btn-secondary:hover {
    background-color: var(--light-gray);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
}

.stat h3 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--dark-gray);
    font-weight: 500;
}

.hero-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.hero-image:hover img {
    transform: scale(1.05);
}

/* Markets Section */
.markets-section {
    padding: 6rem 0;
    background-color: var(--light-gray);
}

.markets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.market-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 1px solid var(--medium-gray);
    display: flex;
    flex-direction: column;
}

.market-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-color: var(--primary-blue);
}

.market-header {
    padding: 2rem 2rem 1rem;
    background-color: var(--white);
}

.market-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    color: var(--white);
}

.market-card:nth-child(1) .market-icon {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.market-card:nth-child(2) .market-icon {
    background: linear-gradient(135deg, #10b981, #047857);
}

.market-card:nth-child(3) .market-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.market-card:nth-child(4) .market-icon {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.market-header h3 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.market-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background-color: var(--light-gray);
    color: var(--text-light);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.market-body {
    padding: 0 2rem;
    flex-grow: 1;
}

.market-features {
    list-style: none;
    margin: 1.5rem 0;
}

.market-features li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
}

.market-features i {
    color: var(--primary-blue);
    font-size: 0.9rem;
}

.market-stats {
    display: flex;
    justify-content: space-between;
    padding: 1.5rem 0;
    border-top: 1px solid var(--medium-gray);
    border-bottom: 1px solid var(--medium-gray);
    margin: 1.5rem 0;
}

.market-stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: var(--dark-gray);
}

.btn-market {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 1rem 2rem;
    background-color: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    transition: var(--transition);
    margin-top: auto;
}

.btn-market:hover {
    background-color: var(--primary-blue-dark);
    gap: 12px;
}

.markets-comparison {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.markets-comparison h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.comparison-table {
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th {
    background-color: var(--light-gray);
    padding: 1rem;
    text-align: left;
    color: var(--text-dark);
    font-weight: 600;
    border-bottom: 2px solid var(--medium-gray);
}

.comparison-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--medium-gray);
    color: var(--text-light);
}

.comparison-table tr:hover {
    background-color: rgba(37, 99, 235, 0.05);
}

.rating {
    color: #fbbf24;
}

/* Courses Section */
.courses-section {
    padding: 6rem 0;
    background-color: var(--white);
}

.courses-tabs {
    max-width: 900px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.8rem 1.8rem;
    background-color: var(--light-gray);
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius);
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    background-color: var(--medium-gray);
}

.tab-btn.active {
    background-color: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.course-plan {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    border: 2px solid var(--medium-gray);
    position: relative;
    transition: var(--transition);
}

.course-plan:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
}

.course-plan.featured {
    border-color: var(--primary-blue);
    box-shadow: 0 20px 25px -5px rgba(37, 99, 235, 0.1);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--medium-gray);
}

.plan-price {
    text-align: right;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.period {
    display: block;
    color: var(--dark-gray);
    font-size: 0.9rem;
}

.plan-features ul {
    list-style: none;
    margin-bottom: 2rem;
}

.plan-features li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
}

.plan-features i {
    color: var(--primary-blue);
}

.btn-plan {
    display: block;
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-plan:hover {
    background-color: var(--primary-blue-dark);
    transform: translateY(-3px);
}

.btn-plan.featured {
    background-color: var(--primary-blue-dark);
    font-size: 1.1rem;
    padding: 1.2rem;
}

/* Testimonials Section */
.testimonials-section {
    padding: 6rem 0;
    background-color: var(--light-gray);
}

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

.testimonial-card {
    padding: 2rem;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--medium-gray);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--accent-blue);
}

.testimonial-content {
    margin-bottom: 1.5rem;
    font-style: italic;
    color: var(--text-light);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    margin-bottom: 0.2rem;
}

.author-info p {
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin: 0;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    background-color: #0f172a;
    color: var(--white);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
}

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

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--white);
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 1rem;
    color: #cbd5e1;
}

.contact-info i {
    color: var(--accent-blue);
    margin-top: 3px;
}

.footer-description {
    color: #cbd5e1;
    margin: 1rem 0 1.5rem;
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-blue);
    transform: translateY(-3px);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #94a3b8;
    font-size: 0.9rem;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    z-index: 1001;
    padding: 2rem;
    transform: translateX(-100%);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.mobile-menu-close {
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-nav-link {
    padding: 1rem 0;
    font-size: 1.2rem;
    color: var(--text-dark);
    text-decoration: none;
    border-bottom: 1px solid var(--medium-gray);
    font-weight: 500;
}

.mobile-nav-link.active {
    color: var(--primary-blue);
}

.mobile-menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
    h1 {
        font-size: 2.8rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    .hero-content {
        flex-direction: column;
    }
    
    .hero-text, .hero-image {
        width: 100%;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 768px) {
    .nav-links, .header-buttons {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
    
    .plan-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .plan-price {
        text-align: left;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero-section {
        padding: 8rem 0 4rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .market-card {
        margin: 0 1rem;
    }
    
    .course-plan {
        padding: 1.5rem;
    }
}