/* 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: #333333;
    background-color: #ffffff;
    overflow-x: hidden;
}

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

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

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
}

h3 {
    font-size: 1.875rem;
    font-weight: 600;
}

h4 {
    font-size: 1.5rem;
    font-weight: 500;
}

p {
    margin-bottom: 1rem;
    color: #666666;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-primary {
    background-color: #1a1a1a;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #333333;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: #1a1a1a;
    border: 2px solid #1a1a1a;
}

.btn-outline:hover {
    background-color: #1a1a1a;
    color: #ffffff;
}

.btn-outline-white {
    background-color: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.btn-outline-white:hover {
    background-color: #ffffff;
    color: #1a1a1a;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #ffffff;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    min-height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: #1a1a1a;
}

.logo-img {
    width: 65px;
    height: 65px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a1a;
}

.nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: #333333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #4a90e2;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #4a90e2;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #ffffff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    padding: 1rem 0;
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 0.75rem 1.5rem;
    color: #333333;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.dropdown-link:hover {
    background-color: #f8f9fa;
    color: #4a90e2;
}

.header-cta {
    display: flex;
    align-items: center;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: #1a1a1a;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #4a90e2 0%, #ffffff 100%);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text {
    color: #ffffff;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: #ffffff;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 400px;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.hero-bg-pattern {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 200" fill="none"><path d="M0,200 L1200,200 L1200,0 C1000,50 800,100 600,150 C400,100 200,50 0,0 Z" fill="white" opacity="0.1"/></svg>') no-repeat center bottom;
    background-size: cover;
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: #666666;
    max-width: 600px;
    margin: 0 auto;
}

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

.card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.card-icon {
    width: 60px;
    height: 60px;
    background-color: #4a90e2;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.card-description {
    color: #666666;
    line-height: 1.6;
}

/* Course Cards */
.course-card {
    background-color: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.course-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.course-card-content {
    padding: 1.5rem;
}

.course-card-category {
    display: inline-block;
    background-color: #1a1a1a;
    color: #ffffff;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.course-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.75rem;
}

.course-card-description {
    color: #666666;
    font-size: 0.95rem;
    line-height: 1.5;
}

.course-card-arrow {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    background-color: #1a1a1a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 0.875rem;
}

/* Stats Section */
.stats {
    background-color: #f8f9fa;
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #4a90e2;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: #666666;
    font-weight: 500;
}

/* Footer */
.footer {
    background-color: #f8f9fa;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: #1a1a1a;
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a1a;
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.footer-nav-title {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.footer-nav-list {
    list-style: none;
}

.footer-nav-list li {
    margin-bottom: 0.5rem;
}

.footer-nav-link {
    color: #666666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-nav-link:hover {
    color: #4a90e2;
}

.footer-copyright {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e0e0e0;
}

.footer-copyright p {
    color: #666666;
    font-size: 0.875rem;
}

.footer-right {
    position: relative;
}

.footer-cta {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    height: 300px;
}

.footer-cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.footer-cta-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.footer-cta-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.8) 0%, rgba(74, 144, 226, 0.8) 100%);
}

.footer-cta-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1rem;
}

.footer-cta-description {
    color: #ffffff;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Mobile Menu Styles */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    background-color: #ffffff;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 9999;
}

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

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #e0e0e0;
}

.mobile-menu-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: #1a1a1a;
}

.mobile-menu-logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.mobile-menu-logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1a1a1a;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #666666;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.mobile-menu-close:hover {
    background-color: #f8f9fa;
    color: #1a1a1a;
}

.mobile-menu-nav {
    padding: 1.5rem;
}

.mobile-menu-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-menu-item {
    margin-bottom: 0.5rem;
}

.mobile-menu-link {
    display: block;
    padding: 1rem 0;
    color: #333333;
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    border-bottom: 1px solid #f0f0f0;
    transition: color 0.3s ease;
}

.mobile-menu-link:hover,
.mobile-menu-link.active {
    color: #4a90e2;
}

.mobile-menu-dropdown {
    margin-left: 1rem;
    margin-top: 0.5rem;
}

.mobile-menu-dropdown-link {
    display: block;
    padding: 0.75rem 0;
    color: #666666;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.mobile-menu-dropdown-link:hover {
    color: #4a90e2;
}

.mobile-menu-cta {
    padding: 1.5rem;
    border-top: 1px solid #e0e0e0;
    margin-top: 1rem;
}

.mobile-menu-cta .btn {
    width: 100%;
    justify-content: center;
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-cta {
        display: none;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-nav {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 320px) {
    .container {
        padding: 0 12px;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}

/* Mobile Menu Toggle Animation */
.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu-toggle.active {
    position: relative;
    z-index: 10000;
}

/* Prevent body scroll when mobile menu is open */
body.mobile-menu-open {
    overflow: hidden;
}

/* Cookies Banner Styles */
.cookies-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #1a1a1a;
    color: #ffffff;
    padding: 1.5rem;
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
}

.cookies-banner.show {
    transform: translateY(0);
}

.cookies-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookies-banner-text {
    flex: 1;
    min-width: 300px;
}

.cookies-banner-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.cookies-banner-description {
    font-size: 0.9rem;
    line-height: 1.5;
    color: #cccccc;
    margin: 0;
}

.cookies-banner-link {
    color: #4a90e2;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.cookies-banner-link:hover {
    color: #66a3f0;
}

.cookies-banner-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.cookies-banner-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.cookies-banner-btn-primary {
    background-color: #4a90e2;
    color: #ffffff;
}

.cookies-banner-btn-primary:hover {
    background-color: #66a3f0;
    transform: translateY(-1px);
}

.cookies-banner-btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border: 1px solid #666666;
}

.cookies-banner-btn-secondary:hover {
    background-color: #333333;
    border-color: #888888;
}

/* Cookies Modal Styles */
.cookies-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.cookies-modal.show {
    opacity: 1;
    visibility: visible;
}

.cookies-modal-content {
    background-color: #ffffff;
    border-radius: 12px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.cookies-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #e0e0e0;
}

.cookies-modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0;
}

.cookies-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #666666;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.cookies-modal-close:hover {
    background-color: #f8f9fa;
    color: #1a1a1a;
}

.cookies-modal-body {
    padding: 1.5rem;
}

.cookies-category {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.cookies-category:last-child {
    margin-bottom: 0;
}

.cookies-category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.cookies-category-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0;
}

.cookies-category-description {
    font-size: 0.9rem;
    color: #666666;
    line-height: 1.5;
    margin: 0;
}

.cookies-toggle {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.cookies-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.cookies-toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #cccccc;
    transition: 0.3s;
    border-radius: 24px;
}

.cookies-toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

.cookies-toggle input:checked + .cookies-toggle-slider {
    background-color: #4a90e2;
}

.cookies-toggle input:checked + .cookies-toggle-slider:before {
    transform: translateX(26px);
}

.cookies-toggle input:disabled + .cookies-toggle-slider {
    background-color: #4a90e2;
    opacity: 0.6;
    cursor: not-allowed;
}

.cookies-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding: 1.5rem;
    border-top: 1px solid #e0e0e0;
}

.cookies-modal-footer .cookies-banner-btn {
    min-width: 120px;
}

/* Responsive Design for Cookies */
@media (max-width: 768px) {
    .cookies-banner-content {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .cookies-banner-text {
        min-width: auto;
    }
    
    .cookies-banner-actions {
        justify-content: center;
    }
    
    .cookies-banner-btn {
        flex: 1;
        min-width: 120px;
    }
    
    .cookies-modal-content {
        margin: 1rem;
        max-height: 90vh;
    }
    
    .cookies-category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .cookies-modal-footer {
        flex-direction: column;
    }
    
    .cookies-modal-footer .cookies-banner-btn {
        width: 100%;
    }
}