/* GLOBAL SETTINGS */
body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: #0a0a0a;
    color: white;
    overflow-x: hidden;
}

/* NAVBAR & TOPBAR (header.php se link) */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background: white;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.nav-left h2 {
    margin: 0;
    font-size: 24px;
    color: #1f3b63;
    font-weight: 700;
}

.nav-menu a {
    margin: 0 10px;
    text-decoration: none;
    color: #1f3b63;
    font-weight: 500;
}

/* HERO SLIDER (index.php ke liye) */
.hero {
    position: relative;
    height: 80vh; /* Navbar ke baad adjust karne ke liye */
    overflow: hidden;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: 1s ease-in-out;
}

.slide.active { opacity: 1; }

.slide::after {
    content: "";
    position: absolute;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    top: 0; left: 0;
}

.hero-content {
    position: relative;
    z-index: 5;
    text-align: center;
    top: 50%;
    transform: translateY(-50%);
}

.hero-content h1 span { color: #d4af37; }

/* COURSE BOXES */
.courses {
    text-align: center;
    padding: 50px 20px;
}

.course-box {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212,175,55,0.2);
    padding: 25px;
    margin: 15px;
    display: inline-block;
    width: 250px;
    border-radius: 12px;
    opacity: 0;
    transform: translateY(30px);
    transition: 0.6s ease;
}

.course-box.active {
    opacity: 1;
    transform: translateY(0);
}

/* BUTTONS */
.btn {
    background: linear-gradient(45deg, #b8860b, #d4af37);
    padding: 12px 25px;
    color: black;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
}