* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    background: #0f172a;
    color: #e2e8f0;
}

/* ===== NAV ===== */
nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 60px;
    background: #020617;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav h2 {
    font-size: 20px;
}

/* ===== HAMBURGER ===== */
.hamburger {
    display: none;
    font-size: 26px;
    cursor: pointer;
    color: white;
}

/* ===== MENU ===== */
.menu-main {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 30px;
}

.menu-main li {
    position: relative;
}

.menu-main a {
    color: #e2e8f0;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
}

.menu-main a:hover {
    color: #38bdf8;
}

/* ===== DROPDOWN ===== */
.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #020617;
    border-radius: 5px;
    list-style: none;
    padding: 10px 0;
    min-width: 150px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.dropdown-menu.show {
    display: block;
}

.dropdown-menu a {
    padding: 8px 20px;
    display: block;
}

.dropdown-menu a:hover {
    background: #1e293b;
}

/* ===== HERO ===== */
.hero {
    height: 60vh;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)),
    url('https://images.unsplash.com/photo-1518770660439-4636190af475');
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.hero h1 {
    font-size: 42px;
}

.hero p {
    margin-top: 10px;
}

/* ===== CONTAINER ===== */
.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
    padding: 40px 20px;
}

/* ===== CARD ===== */
.card {
    background: #1e293b;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.card img,
.main-img {
    width: 100%;
    border-radius: 12px;
    margin: 15px 0;
    aspect-ratio: 16/9;
}

.card h2 {
    color: #38bdf8;
    margin-top: 15px;
}

.card p,
.card ul {
    line-height: 1.6;
}

/* ===== GRID ===== */
.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* ===== CARD EFFECT ===== */
.pro-card {
    border-radius: 15px;
    padding: 25px;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    transition: 0.4s;
}

.pro-card:hover {
    transform: translateY(-10px);
}

/* ===== MEMBER ===== */
.member-card {
    background: #1e293b;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    transition: 0.3s;
}

.member-card img {
    width: 140px;
    height: 140px;
    border-radius: 50%;
}

.member-card:hover {
    transform: translateY(-10px);
}

/* ===== FOOTER ===== */
.site-footer {
    background: #020617;
    text-align: center;
    padding: 20px;
}

/* ===== VIDEO ===== */
.video-container {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 12px;
    overflow: hidden;
}

.video-container iframe {
    width: 100%;
    height: 100%;
    display: block;
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {

    nav {
        padding: 15px 20px;
    }

    .hamburger {
        display: block;
    }

    .menu-main {
        display: none;
        flex-direction: column;
        width: 100%;
        background: #020617;
        margin-top: 10px;
        padding: 10px 0;
    }

    .menu-main.active {
        display: flex;
    }

    .menu-main li {
        width: 100%;
        padding: 10px 20px;
    }

    .menu-main a {
        display: block;
    }

    .dropdown-menu {
        position: relative;
        width: 100%;
        box-shadow: none;
    }

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