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

:root {
    --bg-dark: #0a0a0b;
    --bg-card: #141417;
    --accent-blue: #00d2ff;
    --accent-yellow: #ffcc00;
    --text-main: #e0e0e0;
    --text-dim: #a0a0a0;
    --nav-height: 70px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    height: var(--nav-height);
    background: rgba(10, 10, 11, 0.95);
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    text-decoration: none;
    letter-spacing: 1px;
}

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

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #fff;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle at center, #1a1a2e 0%, var(--bg-dark) 100%);
    padding-top: var(--nav-height);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-dim);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #000;
}

.btn-primary:hover {
    box-shadow: 0 0 15px var(--accent-blue);
    transform: translateY(-2px);
}

.btn-secondary {
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
}

.btn-secondary:hover {
    background-color: var(--accent-blue);
    color: #000;
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #fff;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-blue);
    margin: 15px auto 0;
}

/* Courses */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.course-card {
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.course-card i {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.course-card h3 {
    margin-bottom: 15px;
    color: #fff;
}

.course-card p {
    color: var(--text-dim);
}

.course-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-blue);
    box-shadow: 0 5px 20px rgba(0, 210, 255, 0.1);
}

/* Why Us */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-box {
    text-align: center;
}

.feature-box i {
    font-size: 3rem;
    color: var(--accent-yellow);
    margin-bottom: 20px;
}

.feature-box h3 {
    margin-bottom: 15px;
}

/* Testimonials */
.testimonial-slider {
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    padding: 40px 0;
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.testimonial-item {
    min-width: 100%;
    padding: 0 20px;
    text-align: center;
    display: none;
}

.testimonial-item.active {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

.testimonial-item p {
    font-size: 1.2rem;
    font-style: italic;
    margin-bottom: 20px;
    color: var(--text-main);
}

.testimonial-item h4 {
    color: var(--accent-blue);
}

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.contact-info p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.contact-info a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: var(--accent-blue);
}

.btn-wa {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #25d366;
    color: #fff !important;
    padding: 10px 20px;
    border-radius: 5px;
}

/* Footer */
.footer {
    background: #050505;
    padding: 80px 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand h3 {
    margin-bottom: 15px;
    color: var(--accent-blue);
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-dim);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    color: var(--text-dim);
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-icons a:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-dim);
    font-size: 0.9rem;
}

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

.fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        flex-direction: column;
        text-align: center;
        padding: 20px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
        padding: 0 40px;
    }
}