/* RESET DAN FONT */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    /* Latar belakang yang gelap dan elegan */
    background-color: #0b0c10; /* Sangat gelap */
    color: #c5c6c7; /* Abu-abu terang untuk teks */
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden; /* Mencegah scroll horizontal */
}

/* GRADIENT LATAR BELAKANG */
.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradien ungu tua ke biru tua yang menyala */
    background: linear-gradient(135deg, #2a0050, #001a35);
    opacity: 0.95; /* Sedikit lebih gelap */
    z-index: -1;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* ========================================================= */
/* EFEK GLASSMORPHISM (Kaca) */
/* ========================================================= */
.glass-effect {
    background: rgba(255, 255, 255, 0.08); /* Transparansi */
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2); /* Bayangan lebih gelap */
    backdrop-filter: blur(15px); /* Efek Kaca Buram */
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.15); /* Border sedikit lebih tebal */
    border-radius: 12px;
}

/* TOMBOL */
.btn-premium {
    background-color: transparent;
    color: #66fcf1; /* Warna hijau-biru terang */
    border: 1px solid #66fcf1;
    padding: 8px 18px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 600;
}

.btn-premium:hover {
    background-color: #66fcf1;
    color: #0b0c10;
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.5); /* Efek glow */
}

.btn-action {
    background-color: #45a29e; /* Warna hijau kebiruan solid */
    color: #0b0c10;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
    margin-top: 20px;
    transition: all 0.3s ease;
}

.btn-action:hover {
    background-color: #66fcf1; /* Berubah ke warna premium saat hover */
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.5);
}

/* ========================================================= */
/* HEADER */
/* ========================================================= */
header {
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
    font-size: 1.6em;
    font-weight: 700;
    color: #45a29e;
    display: flex;
    align-items: center;
}

.logo i {
    margin-right: 10px;
    color: #66fcf1;
    font-size: 1.2em;
}

nav a {
    color: #c5c6c7;
    text-decoration: none;
    margin-left: 25px;
    font-weight: 400;
    transition: color 0.3s;
}

nav a:hover {
    color: #66fcf1;
}

/* ========================================================= */
/* HERO SECTION */
/* ========================================================= */
#hero {
    min-height: 80vh; /* Tinggi minimal 80% viewport */
    display: flex;
    align-items: center;
    text-align: center;
}

.hero-content {
    padding: 60px;
    margin: 40px auto;
    max-width: 900px;
    box-shadow: 0 8px 60px rgba(0, 0, 0, 0.4); /* Bayangan lebih dalam */
}

#hero h1 {
    font-size: 3.5em;
    font-weight: 700;
    color: #fff;
    margin-bottom: 25px;
    line-height: 1.2;
}

#hero p {
    font-size: 1.2em;
    margin-bottom: 35px;
    color: #e0e0e0;
}

/* ========================================================= */
/* SECTIONS UMUM */
/* ========================================================= */
.section-padding {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5em;
    font-weight: 700;
    color: #fff;
    text-align: center;
    margin-bottom: 60px;
    border-bottom: 3px solid #66fcf1;
    display: inline-block;
    padding-bottom: 10px;
    width: auto;
    left: 50%;
    transform: translateX(-50%);
    position: relative;
}

/* GRID 3 KOLOM */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    text-align: center;
}

.card {
    padding: 35px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
}

.icon-large {
    font-size: 3.5em;
    color: #66fcf1;
    margin-bottom: 20px;
}

/* ========================================================= */
/* PENGURUS SLIDE CONTAINER (Responsif) */
/* ========================================================= */
.slide-container {
    display: flex;
    overflow-x: auto; /* Memungkinkan scrolling horizontal */
    gap: 30px;
    padding: 20px 0;
    -webkit-overflow-scrolling: touch; /* Untuk smooth scrolling di iOS */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE 10+ */
}

/* Sembunyikan scrollbar untuk Webkit (Chrome, Safari) */
.slide-container::-webkit-scrollbar {
    display: none;
}

.member-card {
    flex: 0 0 280px; /* Menentukan lebar tetap untuk setiap card */
    padding: 25px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.member-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 15px;
    border: 4px solid #45a29e; /* Border elegan */
}

.member-card h4 {
    color: #fff;
    margin-bottom: 8px;
    font-size: 1.2em;
}

.member-card p {
    color: #66fcf1;
    font-size: 0.95em;
    font-weight: 600;
}

/* ========================================================= */
/* KONTAK SECTION */
/* ========================================================= */
.contact-card {
    max-width: 700px;
    margin: 0 auto;
    padding: 40px;
    text-align: center;
    font-size: 1.1em;
}

.contact-card p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-card i {
    margin-right: 15px;
    color: #66fcf1;
    font-size: 1.3em;
}


/* ========================================================= */
/* FOOTER */
/* ========================================================= */
footer {
    text-align: center;
    padding: 40px 0;
    margin-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.2); /* Latar belakang footer sedikit lebih solid */
}

footer p {
    color: #aaa;
    margin-bottom: 15px;
}

.social-links a {
    font-size: 1.6em;
    margin: 0 12px;
    color: #c5c6c7;
    text-decoration: none;
    transition: color 0.3s;
}

.social-links a:hover {
    color: #66fcf1;
}

/* ========================================================= */
/* MEDIA QUERIES (Responsif) */
/* ========================================================= */
@media (max-width: 768px) {
    .logo {
        font-size: 1.2em;
    }
    nav {
        display: none; /* Sembunyikan nav di mobile, bisa diganti dengan menu hamburger */
    }
    header .container {
        justify-content: center; /* Logo di tengah saat nav hilang */
    }
    #hero h1 {
        font-size: 2.5em;
    }
    .hero-content {
        padding: 40px 20px;
    }
    .section-title {
        font-size: 2em;
    }
    .grid-3 {
        grid-template-columns: 1fr; /* Satu kolom di mobile */
    }
    .slide-container {
        padding: 20px 15px; /* Padding untuk scroll di mobile */
    }
    .member-card {
        flex: 0 0 80%; /* Lebar card di mobile */
    }
}

@media (max-width: 480px) {
    #hero h1 {
        font-size: 2em;
    }
    #hero p {
        font-size: 1em;
    }
    .section-title {
        font-size: 1.8em;
    }
    .btn-action {
        padding: 10px 20px;
        font-size: 0.9em;
    }
}