/* =================================
   1. Pengaturan Dasar & Tema Gelap (Dark Mode)
   ================================= */

:root {
    --bg-primary: #121212;      /* Latar belakang utama (sangat gelap) */
    --bg-secondary: #212121;   /* Latar belakang kartu/form (sedikit lebih terang) */
    --text-primary: #ffffff;     /* Teks utama (putih) */
    --text-secondary: #aaaaaa;   /* Teks sekunder (abu-abu) */
    --brand-color: #ff0000;     /* Warna brand (merah) */
    --border-color: #4d4d4d;    /* Warna border */
}

body {
    font-family: 'Roboto', Arial, sans-serif;
    margin: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

header {
    background-color: var(--brand-color);
    color: var(--text-primary);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header h1 a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.5rem;
}

header nav a {
    color: var(--text-primary);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: bold;
    transition: color 0.2s;
}

header nav a:hover {
    color: #ffdada;
}

main {
    padding: 2rem;
    max-width: 1400px;
    margin: auto;
}

h2 {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

/* =================================
   2. Grid Video
   ================================= */

#video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.video-card {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    transition: transform 0.2s;
    cursor: pointer; /* Membuat seluruh kartu terasa bisa diklik */
}

.video-card:hover {
    transform: translateY(-5px);
}

/* --- PERUBAHAN UTAMA: DARI IFRAME KE GAMBAR THUMBNAIL --- */
.video-card .video-thumbnail {
    width: 100%;
    /* Menggunakan aspect-ratio lebih modern dan responsif daripada height tetap */
    aspect-ratio: 16 / 9;
    display: block;
    background-color: #000; /* Latar belakang hitam jika gambar gagal dimuat */
    object-fit: cover; /* Ini SANGAT PENTING agar gambar tidak gepeng/terdistorsi */
}

.video-info {
    padding: 1rem;
}

.video-info h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.video-info p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* =================================
   3. Form Login & Upload
   ================================= */

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 50px;
}

.form-container {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 400px;
}

.form-container h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    border-bottom: none;
}

.form-container input,
.form-container textarea,
.form-container button {
    width: 100%;
    padding: 0.9rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    box-sizing: border-box;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

.form-container input::placeholder,
.form-container textarea::placeholder {
    color: var(--text-secondary);
}

.form-container button {
    background-color: var(--brand-color);
    border: none;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s;
}

.form-container button:hover {
    background-color: #cc0000;
}

.message {
    text-align: center;
    font-weight: bold;
    margin-top: 1rem;
}

.message.success { color: #2ecc71; }
.message.error { color: #e74c3c; }


/* =================================
   4. Gaya untuk Modal / Pop-up Video
   ================================= */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-content {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    width: 90%;
    max-width: 800px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 20px;
    color: var(--text-secondary);
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
}

.modal-close:hover {
    color: var(--text-primary);
}

#modal-video-container {
    width: 100%;
    margin-bottom: 15px;
}

/* Penataan untuk iframe DI DALAM MODAL tetap diperlukan */
#modal-video-container iframe {
    width: 100%;
    aspect-ratio: 16 / 9; 
    border: none;
    border-radius: 8px;
}

#modal-title {
    border-bottom: none;
    margin-top: 0;
    color: var(--text-primary);
}

#modal-description {
    color: var(--text-secondary);
    max-height: 100px;
    overflow-y: auto;
}

/* =================================
   5. Tampilan Responsif untuk Ponsel
   ================================= */

@media (max-width: 600px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem;
    }

    header nav {
        margin-top: 0.5rem;
    }
    
    header nav a {
        margin-left: 0;
        margin-right: 1.5rem;
    }

    main {
        padding: 1rem;
    }

    #video-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
    }

    .form-container {
        padding: 1.5rem;
    }
}