/* Variabel Warna */
:root {
    --color-primary: #370a61; /* Ungu Gelap */
    --color-secondary: #4d1783; /* Ungu Sedang/Aksen */
    --color-accent: #ffc300; /* Emas/Kuning */
    --color-text-light: #f3e9f1; /* Teks Terang */
    --color-text-dark: #333; /* Teks Gelap */
    --color-background-light: #ffffff;
    --color-background-dark: #10002b;
}

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

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

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

html{
    scroll-behavior: smooth;
}

/* Tombol Dasar */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
    text-align: center;
}

.btn-register {
    background-color: var(--color-accent);
    color: var(--color-background-dark);
    border: none;
}

.btn-register:hover {
    background-color: #ffd700;
    color: var(--color-background-dark);
}

.btn-detail {
    background-color: var(--color-accent);
    color: var(--color-background-dark);
    padding: 8px 15px;
    font-size: 0.9rem;
}

.btn-detail:hover {
    background-color: #ffd700;
}

.btn-cta {
    background-color: var(--color-accent);
    color: var(--color-background-dark);
    padding: 12px 30px;
    font-size: 1.1rem;
    margin-top: 15px;
}

.btn-cta:hover {
    background-color: #ffd700;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    color: var(--color-text-light);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.header-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent; /* Awalnya transparan biar nge-blend sama Hero */
    transition: background-color 0.3s ease, top 0.3s ease-in-out, padding 0.3s ease;
    padding: 20px 0; /* Padding agak besar pas di atas biar lega */
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-scrolled {
    background-color: var(--color-primary); /* Berubah jadi ungu solid */
    padding: 10px 0; /* Padding mengecil biar header lebih compact */
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.header-hidden {
    top: -100px; /* Sembunyikan ke atas */
}

/* --- Burger Menu Style --- */
.burger-menu {
    display: none; /* Sembunyikan di desktop */
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--color-text-light);
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero-section {
    background-image: linear-gradient(rgba(0, 0, 0, 0.4), var(--color-primary)), url('bg_placeholder.jpg');
    background-color: var(--color-primary);
    background-size: cover;
    background-position: center;
    color: var(--color-text-light);
    padding-bottom: 80px;
    padding-top: 90px; /* Tambahan padding atas agar konten tidak tertutup navbar */
    min-height: 60vh;
}

.hero-content {
    padding-top: 50px;
    max-width: 600px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.1rem;
    line-height: 1.5;
    margin-bottom: 30px;
}

/* Section Umum */
section {
    padding: 60px 0;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 10px;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 40px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Program Section */
.program-section {
    background-color: var(--color-background-light);
    text-align: center;
}

.program-intro {
    max-width: 800px;
    margin: 0 auto 40px;
    color: #666;
}

.program-cards {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.card {
    background-color: var(--color-secondary);
    color: var(--color-text-light);
    padding: 25px;
    border-radius: 10px;
    width: 300px;
    text-align: left;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.card-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
}

.label {
    background-color: var(--color-accent);
    color: var(--color-background-dark);
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 600;
}

.label-new {
    background-color: #ff0054;  
    color: var(--color-text-light);
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 600;
}

.card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.card p {
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* CTA Section */
.cta-section {
    padding: 0; /* Padding diatur di cta-box */
    background-color: var(--color-background-light);
}

.cta-box {
    display: flex;
    justify-content: space-between;
    align-items: center; /* Memastikan kolom kiri dan kanan sejajar di tengah */
    background-color: var(--color-secondary);
    background-image: linear-gradient(90deg, #6a1b9a 0%, #4a148c 100%);
    color: var(--color-text-light);
    padding: 40px 50px; /* Padding diperbesar agar lebih lega */
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
    margin-top: 40px;
    margin-bottom: 60px;
    gap: 40px; /* Jarak antara kolom kiri dan kanan */
}

.cta-left {
    flex: 1; /* Mengambil sisa ruang yang ada */
    display: flex;
    flex-direction: column; /* Menyusun teks dan tombol ke bawah */
    align-items: flex-start; /* Meratakan konten ke sebelah kiri */
    gap: 15px; /* Jarak antar elemen di kolom kiri */
    max-width: 60%;
}

.cta-left h2 {
    color: var(--color-text-light);
    font-size: 2.5rem; 
    line-height: 1.2;
    text-align: left; 
    margin: 0;
}

.cta-left p {
    font-size: 1.1rem;
    line-height: 1.5;
    margin: 0 0 10px 0; /* Memberi jarak sedikit dengan tombol */
}

.cta-right {
    flex-shrink: 0;
    width: 35%; /* Lebar kolom gambar */
    display: flex;
    justify-content: flex-end; /* Memastikan gambar nempel ke kanan */
}

.cta-image {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 10px; /* Opsional: Biar ujung gambar agak tumpul menyesuaikan box */
    object-fit: cover;
}

.btn-cta {
    background-color: var(--color-accent);
    color: var(--color-background-dark);
    padding: 12px 30px;
    font-size: 1.1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.btn-cta:hover {
    background-color: #ffd700;
}

/* Keuntungan Section */
.keuntungan-section {
    background-color: var(--color-background-light);
}

.keuntungan-cards {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.keuntungan-card {
    background-color: #f7f7f7;
    padding: 30px;
    border-radius: 8px;
    width: 350px;
    text-align: center;
    border: 1px solid #ddd;
    transition: transform 0.3s ease;
}

.keuntungan-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.keuntungan-icon {
    width: 100px;
    height: 100px;
    object-fit: contain;
    margin-bottom: 20px;
    border-radius: 50%;
}

.keuntungan-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--color-secondary);
}

.keuntungan-card p {
    font-size: 0.9rem;
    color: #555;
}

/* Mitra Section */
.mitra-section {
    padding: 40px 0 80px;
    background-color: var(--color-background-light);
}

.mitra-logos {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
}

.mitra-logo-placeholder {
    width: 50px;
    height: 50px;
    background-color: var(--color-accent);
    border-radius: 50%;
    /* Ini hanya placeholder, untuk visual lebih baik ganti dengan tag <img> */
    display: inline-block;
}

/* --- Footer Section --- */
.footer-section {
    background-color: var(--color-background-dark);
    color: var(--color-text-light);
    padding: 60px 0 0 0; /* Padding bawah 0 karena ada footer-bottom */
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col {
    flex: 1;
}

.footer-logo {
    display: inline-block;
    color: var(--color-accent);
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    margin-bottom: 15px;
}

.footer-col p {
    font-size: 0.95rem;
    color: #ccc;
    margin-bottom: 15px;
}

.contact-info p {
    margin-bottom: 5px;
}

.footer-col h3 {
    color: var(--color-text-light);
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

/* Garis kecil di bawah judul kolom footer */
.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background-color: var(--color-accent);
    border-radius: 2px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-accent);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-secondary);
    color: var(--color-text-light);
    border-radius: 50%;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.social-icon:hover {
    background-color: var(--color-accent);
    color: var(--color-background-dark);
    transform: translateY(-3px); /* Efek loncat sedikit pas di-hover */
}

.footer-bottom {
    background-color: #0b001e; /* Warna ungu yang lebih gelap dari background-dark */
    text-align: center;
    padding: 20px 0;
    font-size: 0.9rem;
    color: #999;
}

/* Responsive Design Sederhana */
@media (max-width: 900px) {

    .burger-menu {
        display: flex; /* Munculkan di mobile */
    }

    .nav-links {
        position: absolute;
        top: 100%; /* Muncul tepat di bawah header */
        left: 0;
        width: 100%;
        background-color: var(--color-primary);
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        gap: 20px;
        
        /* Animasi Slide */
        transform: translateY(-200%); /* Default: tersembunyi ke atas */
        transition: transform 0.4s ease;
        opacity: 0; 
        z-index: -1; /* Supaya ada di belakang header saat slide */
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        z-index: 999;
        box-shadow: 0 5px 10px rgba(0,0,0,0.2);
    }

    /* Animasi icon burger menjadi X */
    .burger-menu.toggle .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    .burger-menu.toggle .bar:nth-child(2) {
        opacity: 0;
    }
    .burger-menu.toggle .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

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

    .program-cards {
        flex-direction: column;
        align-items: center;
    }

    .cta-box {
        flex-direction: column; /* Mengubah baris menjadi kolom di HP */
        text-align: center;
        padding: 40px 20px;
    }

    .cta-left {
        max-width: 100%;
        align-items: center; /* Meratakan teks dan tombol ke tengah di HP */
    }

    .cta-left h2 {
        text-align: center;
    }

    .cta-right {
        width: 100%;
        justify-content: center;
        margin-top: 20px; /* Jarak antara tombol dan gambar di HP */
    }

    .card {
        width: 90%;
        max-width: 400px;
    }

    .keuntungan-cards {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        flex-direction: column; /* Mengubah 3 kolom jadi 1 kolom ke bawah */
        gap: 30px;
        text-align: center;
    }

    .footer-col h3::after {
        left: 50%;
        transform: translateX(-50%); /* Posisi garis di tengah untuk layar HP */
    }

    .social-links {
        justify-content: center; /* Ikon sosmed ke tengah */
    }
}