@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=Orbitron:wght@400;700&display=swap');

:root {
    --primary-bg: #030a16;
    --secondary-bg: #0a192f;
    --accent-blue: #00d2ff;
    --accent-green: #39ff14;
    --text-main: #e6f1ff;
    --text-dim: #8892b0;
    --glass-bg: rgba(10, 25, 47, 0.7);
    --neon-glow: 0 0 10px rgba(0, 210, 255, 0.5);
    --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

body {
    background-color: var(--primary-bg);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
.futuristic-font {
    font-family: 'Orbitron', sans-serif;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 5px var(--accent-blue);
    }

    50% {
        box-shadow: 0 0 20px var(--accent-blue);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes scroll_logos {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(calc(-50% - 2rem));
    }
}

/* Background Grid Overlay */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 210, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 210, 255, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-fast);
    padding: 1rem 5%;
}

header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 210, 255, 0.2);
    padding: 0.5rem 5%;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 50px;
    filter: drop-shadow(0 0 5px var(--accent-blue));
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
}

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

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

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-fast);
    position: relative;
    text-transform: uppercase;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: var(--transition-fast);
}

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

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

.nav-auth {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-login {
    padding: 8px 20px;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.btn-login:hover {
    background: rgba(0, 210, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.3);
}

/* Mobile Menu */
.mobile-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.nav-links.active {
    display: flex !important;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--secondary-bg);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--accent-blue);
    animation: fadeInUp 0.5s ease-out;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 900px;
    z-index: 10;
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(0, 210, 255, 0.1);
    border: 1px solid var(--accent-blue);
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(to right, #fff, var(--accent-blue));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin-bottom: 2.5rem;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.btn-primary {
    padding: 15px 35px;
    background: var(--accent-blue);
    color: var(--primary-bg);
    text-decoration: none;
    font-weight: 700;
    border-radius: 4px;
    text-transform: uppercase;
    transition: var(--transition-fast);
    animation: glow 3s infinite;
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px var(--accent-blue);
}

.btn-secondary {
    padding: 15px 35px;
    border: 1px solid var(--text-main);
    color: var(--text-main);
    text-decoration: none;
    font-weight: 700;
    border-radius: 4px;
    text-transform: uppercase;
    transition: var(--transition-fast);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Stats Section */
.stats {
    padding: 100px 5%;
    background: var(--secondary-bg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--text-dim);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

/* Courses Grid */
.courses {
    padding: 100px 5%;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.course-card {
    background: var(--secondary-bg);
    border: 1px solid rgba(0, 210, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
    transform: translateX(-100%);
    transition: 0.5s;
}

.course-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-blue);
    box-shadow: 0 10px 30px rgba(0, 210, 255, 0.1);
}

.course-card:hover::before {
    transform: translateX(100%);
}

.course-icon {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
}

.course-card h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.course-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 1.5rem;
}

.btn-card {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: var(--transition-fast);
    animation: float 3s infinite ease-in-out;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 0 25px #25d366;
}

/* Responsive */
@media (max-width: 991px) {

    .nav-links,
    .nav-auth {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 480px) {
    .hero-btns {
        flex-direction: column;
    }

    .stat-item h3 {
        font-size: 2.5rem;
    }
}