/*
 * =========================================
 * TEMA FUTURISTIK DARK MODE (BARU)
 * =========================================
 */

/* Palet Warna:
 * Background Utama: #111827 (Biru Sangat Gelap)
 * Background Kartu: #1F2937 (Biru Gelap/Slate)
 * Teks Utama: #E5E7EB (Putih Pudar)
 * Teks Sekunder: #9CA3AF (Abu-abu Terang)
 * Aksen Futuristik: #22D3EE (Cyan Elektrik)
 * Border/Pemisah: #374151 (Abu-abu Gelap)
 */

/* Pengaturan Dasar dan Font */
body {
    font-family: 'Roboto', sans-serif;
    background-color: #111827; /* [BARU] Latar belakang utama */
    color: #9CA3AF; /* [BARU] Warna teks default (sekunder) */
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* Header */
header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 40px 20px;
    background-color: #1F2937; /* [BARU] Latar belakang header */
    border-bottom: 1px solid #374151; /* [BARU] Border pemisah */
}

/* Logo (tambahkan sedikit glow) */
.header-logo {
    height: 60px;
    width: 60px;
    object-fit: cover;
    border-radius: 50%;
    /* [BARU] Efek glow halus pada logo */
    box-shadow: 0 0 15px rgba(34, 211, 238, 0.2); 
}

.header-text {
    text-align: left;
}

.header-text h1 {
    margin: 0;
    font-weight: 700;
    font-size: 2.5rem;
    color: #E5E7EB; /* [BARU] Teks putih */
}

.header-text p {
    margin: 5px 0 0;
    font-weight: 300;
    font-size: 1.25rem;
    color: #9CA3AF; /* [BARU] Teks abu-abu */
}

/* Konten Utama dan Galeri */
main {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.gallery-container h2 {
    text-align: center;
    font-weight: 400;
    font-size: 2rem;
    margin-bottom: 30px;
    color: #E5E7EB; /* [BARU] Teks putih */
    border-bottom: 2px solid #22D3EE; /* [BARU] Aksen Cyan */
    display: inline-block;
    padding-bottom: 5px;
}

/* Tata letak artikel (vertikal) */
.gallery-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 50px;
}

/* Kartu Proyek */
.gallery-item {
    background-color: #1F2937; /* [BARU] Latar belakang kartu */
    border-radius: 8px;
    /* [BARU] Bayangan yang lebih gelap & border halus */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    border: 1px solid #374151;
    transition: all 0.3s ease-in-out;
    overflow: hidden;
    max-width: 800px;
    width: 100%;
}

/* Efek Hover Futuristik (Glow) */
.gallery-item:hover {
    transform: scale(1.01);
    border-color: #22D3EE; /* [BARU] Border menyala */
    /* [BARU] Efek glow (bayangan warna cyan) */
    box-shadow: 0 0 25px rgba(34, 211, 238, 0.25);
}

/* Gambar (tidak berubah) */
.gallery-grid img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    cursor: pointer;
}

/* Header Kartu (Judul) */
.item-header {
    padding: 20px 25px 15px 25px;
}

.item-header h3 {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
    color: #22D3EE; /* [BARU] Judul warna Aksen Cyan */
    line-height: 1.4;
}

/* Deskripsi Kartu */
.item-description {
    padding: 15px 25px 20px 25px;
}

.item-description p {
    margin: 0;
    font-size: 1rem;
    color: #E5E7EB; /* [BARU] Teks deskripsi lebih cerah */
    line-height: 1.6;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    font-size: 0.9rem;
    color: #9CA3AF; /* [BARU] Teks abu-abu */
    border-top: 1px solid #374151; /* [BARU] Border pemisah */
}

/*
 * =========================================
 * TOMBOL KONTAK (Ganti tema ke Cyan)
 * =========================================
 */
.contact-links {
    margin-bottom: 20px;
    text-align: center;
}

.contact-button {
    display: inline-block;
    padding: 12px 25px;
    background-color: #22D3EE; /* [BARU] Aksen Cyan */
    color: #111827; /* [BARU] Teks gelap agar kontras */
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    /* [BARU] Bayangan glow */
    box-shadow: 0 4px 15px rgba(34, 211, 238, 0.2);
}

.contact-button:hover {
    background-color: #67E8F9; /* [BARU] Versi lebih cerah */
    box-shadow: 0 6px 20px rgba(34, 211, 238, 0.3);
    transform: translateY(-2px);
    color: #0F172A; /* [BARU] Teks gelap (sedikit beda) */
}


/*
 * =========================================
 * LIGHTBOX (Versi Gelap)
 * =========================================
 */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* [BARU] Latar belakang gelap transparan */
    background: rgba(17, 24, 39, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    cursor: pointer;
    animation: fadeIn 0.3s ease;
}

.lightbox-overlay img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 8px;
    /* [BARU] Bayangan glow untuk gambar popup */
    box-shadow: 0 0 40px rgba(34, 211, 238, 0.3);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes zoomIn {
    from { transform: scale(0.9); }
    to { transform: scale(1); }
}

/*
 * =========================================
 * PENYESUAIAN RESPONSIVE (MEDIA QUERIES)
 * =========================================
 * (Tidak ada perubahan di sini, hanya selector header)
 */
@media (max-width: 600px) {
    header {
        flex-direction: column;
        gap: 10px;
    }

    .header-text {
        text-align: center;
    }

    .header-text h1 {
        font-size: 2rem;
    }

    .header-text p {
        font-size: 1rem;
    }

    main {
        margin-top: 20px;
        margin-bottom: 20px;
    }

    .gallery-grid {
        gap: 30px; /* Sedikit kurangi gap di HP */
    }

    .gallery-container h2 {
        font-size: 1.5rem;
    }

    .lightbox-overlay img {
        max-width: 95%;
        max-height: 95%;
    }
    
    .item-header h3 {
        font-size: 1.4rem; /* Kecilkan sedikit judul kartu di HP */
    }
}