:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #f59e0b;
    --accent: #3b82f6;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --white: #ffffff;
    --light-bg: #f3f4f6;
    --glass-bg: rgba(255, 255, 255, 0.9);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    display: block;
}

.section {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--light-bg);
}

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

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

.primary-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.secondary-btn:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--white);
    padding: 12px 0;
    box-shadow: var(--shadow);
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
}

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

.btn-nav {
    background: var(--primary);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 50px;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: url('hero.png') no-repeat center center/cover;
    position: relative;
    display: flex;
    align-items: center;
    color: var(--white);
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.3));
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 650px;
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 24px;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 32px;
    opacity: 0.9;
}

.hero-btns {
    display: flex;
    gap: 16px;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.section-subtitle {
    display: block;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 24px;
}

.features-mini {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.feature-mini-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--light-bg);
    padding: 8px 16px;
    border-radius: 50px;
    font-weight: 500;
}

.feature-mini-item .icon {
    color: var(--primary);
}

.about-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

/* Floating Animation */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

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

.floating {
    animation: float 6s ease-in-out infinite;
}

/* Courses Section */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.divider {
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 0 auto;
    border-radius: 2px;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.course-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.course-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

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

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

/* Contact Section */
.contact-header {
    text-align: center;
    margin-bottom: 50px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 1.25rem;
}

.info-content h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.info-content p {
    color: var(--text-light);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.w-100 {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 40px 0;
    text-align: center;
}

.footer-bottom {
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 991px) {
    .hero-content h1 {
        font-size: 3rem;
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .hero-btns {
        flex-direction: column;
    }

    .section {
        padding: 60px 0;
    }
}