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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #0a0a0a;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    text-shadow: 0 0 20px #5af7fa;
}

h2 {
    font-size: 2.5rem;
    color: #5af7fa;
    text-shadow: 0 0 15px #5af7fa;
}

h3 {
    font-size: 1.8rem;
    color: #ffffff;
}

h4 {
    font-size: 1.4rem;
    color: #5af7fa;
}

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

a {
    color: #5af7fa;
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #ffffff;
    text-shadow: 0 0 10px #5af7fa;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid #5af7fa;
    background: transparent;
    color: #5af7fa;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(90, 247, 250, 0.3);
}

.btn:hover {
    background: #5af7fa;
    color: #0a0a0a;
    transform: translateY(-2px);
    box-shadow: 0 5px 25px rgba(90, 247, 250, 0.5);
}

.btn-primary {
    background: #5af7fa;
    color: #0a0a0a;
}

.btn-primary:hover {
    background: transparent;
    color: #5af7fa;
}

.btn-secondary {
    border-color: #ffffff;
    color: #ffffff;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: #ffffff;
    color: #0a0a0a;
    box-shadow: 0 5px 25px rgba(255, 255, 255, 0.5);
}

.btn-outline {
    background: transparent;
    border-color: #666666;
    color: #cccccc;
    box-shadow: none;
}

.btn-outline:hover {
    background: #666666;
    color: #ffffff;
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(90, 247, 250, 0.2);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand a {
    font-size: 1.8rem;
    font-weight: 700;
    color: #5af7fa;
    text-shadow: 0 0 15px #5af7fa;
}

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

.nav-menu a {
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #5af7fa;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #5af7fa;
    margin: 3px 0;
    transition: 0.3s;
    box-shadow: 0 0 5px #5af7fa;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 2rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #cccccc;
}

/* Sections */
.section {
    padding: 6rem 0;
    position: relative;
}

.section:nth-child(even) {
    background: rgba(90, 247, 250, 0.02);
}

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

.section-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 10px #5af7fa);
}

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

.benefit-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 1px solid rgba(90, 247, 250, 0.2);
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.benefit-card:hover {
    transform: translateY(-10px);
    border-color: #5af7fa;
    box-shadow: 0 10px 30px rgba(90, 247, 250, 0.2);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

.benefit-icon img {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 10px #5af7fa);
}

/* About Company Section */
.section-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.content-image img {
    width: 100%;
    max-width: 300px;
    filter: drop-shadow(0 0 20px #5af7fa);
}

/* Course Section */
.course-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid rgba(90, 247, 250, 0.2);
    transition: all 0.3s ease;
}

.feature:hover {
    border-color: #5af7fa;
    box-shadow: 0 5px 20px rgba(90, 247, 250, 0.2);
}

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

.teacher-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 1px solid rgba(90, 247, 250, 0.2);
    transition: all 0.3s ease;
}

.teacher-card:hover {
    transform: translateY(-5px);
    border-color: #5af7fa;
    box-shadow: 0 10px 30px rgba(90, 247, 250, 0.2);
}

.teacher-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #5af7fa;
    box-shadow: 0 0 20px rgba(90, 247, 250, 0.3);
}

.teacher-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.teacher-title {
    color: #5af7fa;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Achievements Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(90, 247, 250, 0.2);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: #5af7fa;
    box-shadow: 0 10px 30px rgba(90, 247, 250, 0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #5af7fa;
    text-shadow: 0 0 15px #5af7fa;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: #cccccc;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Contact Preview Section */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.contact-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(90, 247, 250, 0.2);
}

.contact-item h3 {
    color: #5af7fa;
    margin-bottom: 1rem;
}

/* Subscription Section */
.subscription {
    background: linear-gradient(135deg, rgba(90, 247, 250, 0.1), rgba(10, 10, 10, 0.9));
    border-top: 1px solid rgba(90, 247, 250, 0.3);
    border-bottom: 1px solid rgba(90, 247, 250, 0.3);
}

.subscription-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.subscription-form {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

.form-group {
    position: relative;
}

.form-group input {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(90, 247, 250, 0.3);
    border-radius: 5px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #5af7fa;
    box-shadow: 0 0 15px rgba(90, 247, 250, 0.3);
}

.form-group input::placeholder {
    color: #999999;
}

/* Footer */
.footer {
    background: #000000;
    border-top: 1px solid rgba(90, 247, 250, 0.3);
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    color: #5af7fa;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px #5af7fa;
}

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

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

.footer-section ul li a {
    color: #cccccc;
    transition: all 0.3s ease;
}

.footer-section ul li a:hover {
    color: #5af7fa;
    text-shadow: 0 0 5px #5af7fa;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(90, 247, 250, 0.1);
    border: 1px solid rgba(90, 247, 250, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #5af7fa;
    color: #0a0a0a;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(90, 247, 250, 0.4);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(90, 247, 250, 0.2);
    color: #999999;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-top: 2px solid #5af7fa;
    padding: 1.5rem;
    z-index: 1001;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

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

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

.cookie-buttons .btn {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Cookie Modal */
.cookie-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1002;
}

.cookie-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #1a1a1a;
    padding: 2rem;
    border-radius: 10px;
    border: 2px solid #5af7fa;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    color: #5af7fa;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: #ffffff;
}

.cookie-option {
    margin: 1.5rem 0;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 5px;
    border: 1px solid rgba(90, 247, 250, 0.2);
}

.cookie-option label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: #5af7fa;
    cursor: pointer;
}

.cookie-option input[type="checkbox"] {
    accent-color: #5af7fa;
}

.cookie-option p {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: #cccccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-7px, 8px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .section-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .btn-large {
        padding: 14px 30px;
        font-size: 1rem;
    }

    .benefits-grid,
    .course-features,
    .teachers-grid,
    .stats-grid,
    .contact-info {
        grid-template-columns: 1fr;
    }
}

/* Page-specific styles */
.page-hero {
    height: 50vh;
    min-height: 400px;
}

.page-content {
    padding: 4rem 0;
}

.content-section {
    margin-bottom: 3rem;
}

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

.tip-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid rgba(90, 247, 250, 0.2);
    transition: all 0.3s ease;
}

.tip-card:hover {
    transform: translateY(-5px);
    border-color: #5af7fa;
    box-shadow: 0 10px 30px rgba(90, 247, 250, 0.2);
}

.tip-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 10px #5af7fa);
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid rgba(90, 247, 250, 0.2);
    margin-top: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(90, 247, 250, 0.3);
    border-radius: 5px;
    color: #ffffff;
    font-size: 1rem;
    font-family: inherit;
    min-height: 120px;
    resize: vertical;
    transition: all 0.3s ease;
}

.form-group textarea:focus {
    outline: none;
    border-color: #5af7fa;
    box-shadow: 0 0 15px rgba(90, 247, 250, 0.3);
}

.form-group textarea::placeholder {
    color: #999999;
}

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

.legal-content h3 {
    color: #5af7fa;
    margin: 2rem 0 1rem;
}

.legal-content ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
}

.thanks-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.thanks-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
    filter: drop-shadow(0 0 20px #5af7fa);
}

@media screen and (max-width:480px){
    [class*="-grid"] {
        grid-template-columns: 1fr;
    }
}