* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #0a0a0a;
    --bg-card: #141414;
    --primary: #ccff00;
    --text-white: #ffffff;
    --text-gray: #a0a0a0;
    --border-color: #2a2a2a;
    
    --font-heading: 'Anton', sans-serif;
    --font-body: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-white);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: normal;
}

.highlight {
    color: var(--primary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.primary-btn {
    background-color: var(--primary);
    color: #000;
    border: 2px solid var(--primary);
}

.primary-btn:hover {
    background-color: transparent;
    color: var(--primary);
}

.secondary-btn {
    background-color: transparent;
    color: var(--text-white);
    border: 2px solid var(--border-color);
}

.secondary-btn:hover {
    border-color: var(--text-white);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 5%;
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.navbar .logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--text-white);
}

.navbar .logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links li a {
    font-weight: 500;
    color: var(--text-gray);
    transition: color 0.3s;
    font-size: 0.95rem;
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--text-white);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.login-btn {
    font-weight: 500;
    color: var(--text-white);
}

.login-btn:hover {
    color: var(--primary);
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 60px 5%;
    min-height: 80vh;
    gap: 40px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.badge {
    background: rgba(204, 255, 0, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 20px;
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero p {
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.stats {
    display: flex;
    gap: 48px;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--text-white);
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-image {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: flex-end;
}

.image-box {
    position: relative;
    width: 100%;
    max-width: 500px;
    border-radius: 20px;
}

.image-box img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.floating-card {
    position: absolute;
    bottom: 40px;
    left: -40px;
    background: var(--bg-card);
    padding: 16px 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid var(--border-color);
}

.floating-card .icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(204, 255, 0, 0.2);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.floating-card h4 {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.floating-card p {
    color: var(--text-gray);
    font-size: 0.8rem;
}

.courses {
    padding: 80px 5%;
    background-color: #050505;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 3rem;
}

.view-all {
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--primary);
    padding-bottom: 4px;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.course-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s;
}

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

.card-img {
    height: 220px;
    background-size: cover;
    background-position: center;
    padding: 16px;
    display: flex;
    align-items: flex-start;
}

.level {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
}

.beginner { color: #ccff00; }
.intermediate { color: #ff9900; }
.advanced { color: #ff3333; }

.card-content {
    padding: 24px;
}

.card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.card-content p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
    font-weight: 600;
}

.card-footer span:last-child {
    font-size: 1.2rem;
    color: var(--primary);
}

@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
    .hero h1 {
        font-size: 4rem;
    }
    .hero-buttons, .stats {
        justify-content: center;
    }
    .floating-card {
        left: 20px;
        bottom: 20px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 3rem;
    }
}