:root {
    --primary-blue: #005eff;
    --primary-dark: #0044cc;
    --primary-red: #ff3838;
    --text-dark: #1a1a1a;
    --text-light: #555555;
    --white: #ffffff;
    --bg-light: #f8f9fc;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.5);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 15px 40px rgba(0, 94, 255, 0.15);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@500;600;700;800&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-body);
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-dark);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

/* --- BUTTONS --- */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-blue);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 94, 255, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 94, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

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

/* --- HEADER --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.4s ease;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

header.scrolled {
    padding: 10px 5%;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.logo {
    font-size: 24px;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--primary-blue);
    letter-spacing: -1px;
}

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

.nav-item {
    font-weight: 500;
    color: var(--text-light);
    font-size: 15px;
    position: relative;
}

.nav-item:hover {
    color: var(--primary-blue);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    box-shadow: var(--shadow-soft);
    border-radius: 12px;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: 0.3s ease;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 10px 20px;
    color: var(--text-light);
    font-size: 14px;
}

.dropdown-item:hover {
    background: var(--bg-light);
    color: var(--primary-blue);
}

/* --- HERO SECTION --- */
.hero {
    padding: 140px 5% 80px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
    min-height: 90vh;
    background: radial-gradient(circle at top right, rgba(0, 94, 255, 0.05), transparent 40%);
}

.hero-content h1 {
    font-size: 56px;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-content p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 15px;
}

.hero-img img {
    width: 100%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

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

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

/* --- FEATURES (Glass Grid) --- */
.features {
    padding: 80px 5%;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: rgba(0, 94, 255, 0.1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-size: 24px;
    margin-bottom: 20px;
}

/* --- SECTIONS COMMON --- */
.section-padding {
    padding: 100px 5%;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 10px;
}

.section-title p {
    color: var(--text-light);
}

/* --- COURSES --- */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: 0.3s;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.course-body {
    padding: 25px;
}

.course-tag {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary-blue);
    margin-bottom: 10px;
    display: block;
}

/* --- STATS --- */
.stats-section {
    background: var(--primary-blue);
    color: white;
    padding: 60px 5%;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    border-radius: 30px;
    margin: 5%;
}

.stat-item {
    text-align: center;
}

.stat-num {
    font-size: 48px;
    font-weight: 800;
}

.stat-label {
    opacity: 0.8;
}

/* --- FORM --- */
.enquiry-section {
    background: white;
}

.form-box {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
    border: 1px solid #eee;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-full {
    grid-column: span 2;
}

.input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
}

.input-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #eee;
    border-radius: 10px;
    font-size: 15px;
    transition: 0.3s;
}

.input-control:focus {
    border-color: var(--primary-blue);
    outline: none;
}

/* --- FOOTER --- */
footer {
    background: #0f172a;
    color: white;
    padding: 80px 5% 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 60px;
}

.footer-col h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 18px;
}

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

.footer-links a {
    color: #94a3b8;
}

.footer-links a:hover {
    color: white;
}

/* --- MOBILE --- */
.mobile-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 100px;
    }

    .hero-btns {
        justify-content: center;
    }

    .hero-content h1 {
        font-size: 40px;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        display: none;
    }

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

    .mobile-toggle {
        display: block;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-full {
        grid-column: span 1;
    }
}

/* --- POPUP --- */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: 0.3s;
}

.popup-overlay.open {
    display: flex;
    opacity: 1;
}

.popup-box {
    background: white;
    padding: 30px;
    border-radius: 20px;
    width: 90%;
    max-width: 450px;
    position: relative;
    transform: translateY(20px);
    transition: 0.3s;
}

.popup-overlay.open .popup-box {
    transform: translateY(0);
}

.close-popup {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: #aaa;
}