/* ===================================================================
   KODE CSS UNTUK HALAMAN GEARS (CALCULATOR)
   VERSI: RAPIH (DIREFAKTORISASI UNTUK KEJELASAN & KETERBACAAN)
   =================================================================== */

/* ===================================================================
   1. SETUP GLOBAL & VARIABEL
   -------------------------------------------------------------------
   Definisi variabel warna, reset gaya universal, dan gaya dasar
   untuk <body>.
   =================================================================== */
:root {
    --background-dark: #111827;
    --background-card: #1F2937;
    --background-feature: #374151;
    --text-primary: #F9FAFB;
    --text-secondary: #9CA3AF;
    --accent-primary: #8A5CFE;
    --accent-secondary: #6366F1;
    --accent-gradient: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    --shadow-color: rgba(0, 0, 0, 0.4);
    --glow-color: rgba(138, 92, 254, 0.4);
}

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

body {
    font-family: 'Poppins', 'Segoe UI', sans-serif;
    background-color: var(--background-dark);
    color: var(--text-primary);
}


/* ===================================================================
   2. STRUKTUR UTAMA & LAYOUT
   -------------------------------------------------------------------
   Gaya untuk elemen kerangka utama halaman: header, container, 
   kartu utama, dan footer.
   =================================================================== */
header {
    padding: 2rem 0;
    text-align: center;
}

.logo img {
    height: 60px;
    object-fit: contain;
}

.container {
    display: flex;
    justify-content: center;
    padding: 0 2rem 2rem 2rem;
    width: 100%;
}

.card {
    background-color: var(--background-card);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--background-feature);
    box-shadow: 0 8px 24px var(--shadow-color);
    width: 100%;
    max-width: 900px;
}

.card h2 {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
    text-align: center;
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--background-feature);
}


/* ===================================================================
   3. KOMPONEN UMUM & REUSABLE
   -------------------------------------------------------------------
   Gaya untuk elemen UI yang dapat digunakan kembali seperti tombol,
   tautan, dan formulir.
   =================================================================== */

/* --- 3a. Tombol & Tautan Aksi --- */
.top-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: -10px;
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    background: var(--accent-gradient);
    color: #fff;
    transition: all .3s ease;
    font-size: 1rem;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--glow-color);
}

.btn-secondary {
    background: var(--background-feature);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    color: var(--text-primary);
    background: var(--accent-primary);
    transform: none;
    box-shadow: none;
}

#upgrade {
    width: 100%;
    max-width: 300px;
    padding: 12px;
    font-size: 1.1rem;
    margin-top: 1rem;
}

.back-link {
    display: inline-block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 2rem;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

.back-link:hover {
    color: var(--accent-primary);
}

.back-link i {
    margin-right: 8px;
}

/* --- 3b. Elemen Formulir --- */
.level-input-group {
    margin-bottom: 1rem;
}

.level-input-group label {
    color: var(--text-secondary);
    display: block;
    margin-bottom: 5px;
    text-align: left;
}

.level-input-group input,
#materialInput,
.level-input-group select {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--background-feature);
    background-color: var(--background-dark);
    color: var(--text-primary);
    font-size: 1rem;
}

.level-input-group input:focus,
#materialInput:focus,
.level-input-group select:focus {
    outline: 0;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--glow-color);
}

.level-input-group select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23ffffff%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 10px;
    cursor: pointer;
}


/* ===================================================================
   4. KOMPONEN SPESIFIK HALAMAN "GEARS"
   -------------------------------------------------------------------
   Gaya untuk komponen yang unik di halaman ini.
   =================================================================== */

/* --- 4a. Tata Letak Pilihan Gear --- */
.gear-layout {
    display: flex;
    justify-content: space-between;
    max-width: 300px;
    margin: 1.5rem auto 2rem auto;
    position: relative;
}
.box-middle { flex-grow: 1; }
.box-left, .box-right {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.gear-box {
    position: relative;
    width: 60px;
    height: 60px;
    background-color: var(--background-feature);
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .3);
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease;
}
.gear-box:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 30px rgba(0, 0, 0, .5);
}
.gear-box img.gear-img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    object-fit: cover;
}
.box-left .gear-box:nth-child(2) { transform: translateX(-20px); }
.box-left .gear-box:nth-child(2):hover { transform: translateX(-20px) scale(1.1); }
.box-right .gear-box:nth-child(2) { transform: translateX(20px); }
.box-right .gear-box:nth-child(2):hover { transform: translateX(20px) scale(1.1); }

/* --- 4b. Indikator pada Gear Box (Tier & Stars) --- */
.gear-tier {
    position: absolute;
    top: 2px;
    left: 2px;
    color: #ffcc24;
    font-weight: 700;
    font-size: 8px;
    padding: 2px;
    z-index: 3;
    pointer-events: none;
}
.gear-stars {
    position: absolute;
    bottom: 4px;
    left: 2px;
    display: flex;
    flex-direction: column;
    font-size: 8px;
    pointer-events: none;
    z-index: 2;
    line-height: 1;
    gap: 3px;
}
.star {
    text-shadow: 1px 1px 2px #000;
}

/* --- 4c. Pratinjau Gear di Tengah --- */
#gear-preview {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    pointer-events: none;
    animation: floatUpDown 2s ease-in-out infinite;
}
#gear-preview img {
    width: 120px;
    height: auto;
}

/* --- 4d. Panel Pilihan Material --- */
.card-materials {
    position: relative;
    background-color: var(--background-dark);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem auto 0;
    border: 1px solid var(--background-feature);
    text-align: center;
}
.materials {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
}
.material-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    width: 65px;
}
.material-box img {
    width: 100%;
    height: 65px;
    border-radius: 8px;
    object-fit: cover;
    background-color: var(--background-card);
    border: 1px solid #4B5563;
    transition: transform .3s ease;
}
.material-box:hover img {
    transform: scale(1.05);
}
.material-amount {
    margin-top: 6px;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
}
.max-materials span {
    font-size: 1.2rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}
#resetMaterialsBtn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    margin: 0;
    padding: 6px 10px;
    font-size: 1.2rem;
}

/* --- 4e. Dropdown Kustom (Pemilih Level Gear) --- */
.custom-select-container {
    position: relative;
    width: 100%;
}
.custom-select-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    border-radius: 6px;
    border: 1px solid var(--background-feature);
    background-color: var(--background-dark);
    color: var(--text-primary);
    cursor: pointer;
    height: 45px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}
.custom-select-trigger:hover, .custom-select-trigger.open {
    border-color: var(--accent-primary);
}
.custom-select-trigger.open {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}
.trigger-content {
    display: flex;
    align-items: center;
    gap: 10px;
    overflow: hidden;
}
.trigger-content img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    flex-shrink: 0;
}
.trigger-content span {
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}
.arrow {
    border: solid var(--text-primary);
    border-width: 0 2px 2px 0;
    padding: 3px;
    transform: rotate(45deg);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}
.open .arrow {
    transform: rotate(-135deg);
}
.custom-options {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background-dark);
    border: 1px solid var(--accent-primary);
    border-top: none;
    border-radius: 0 0 6px 6px;
    z-index: 1001;
    max-height: 250px;
    overflow-y: auto;
}
.custom-options.open {
    display: block;
}
.custom-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.custom-option:hover, .custom-option.selected {
    background-color: var(--background-feature);
}
.custom-option img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    flex-shrink: 0;
}
.custom-option .level-name {
    color: var(--text-primary);
}

/* --- 4f. Pemilih Bahasa (Language Switcher) --- */
.language-switcher {
    text-align: right;
    margin-bottom: 1rem;
    position: relative;
}
.language-switcher i {
    margin-right: 8px;
    color: var(--text-secondary);
}
.language-switcher select {
    background-color: var(--background-feature);
    color: var(--text-primary);
    border: 1px solid var(--background-card);
    padding: 5px 35px 5px 10px; /* Tambah padding kanan untuk ruang panah */
    border-radius: 6px;
    font-family: 'Poppins', sans-serif;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23ffffff%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 10px;
    cursor: pointer;
}
.language-switcher select:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--accent-primary);
}

/* --- 4g. Kartu Ringkasan Material --- */
.used-materials-summary-card {
    background-color: var(--background-feature);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    max-width: 400px;
    margin: 20px auto;
}
.used-materials-summary-card h4 {
    margin: 0 0 12px;
    text-align: center;
    font-size: 1.2rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}
.materials-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.material-row {
    display: flex;
    justify-content: space-between;
    background-color: var(--background-dark);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: .9rem;
}
.material-name { color: var(--text-secondary); }
.material-total {
    font-weight: 700;
    color: var(--text-primary);
}

/* ===================================================================
   5. KOMPONEN INTERAKTIF (MODAL & ALERT)
   -------------------------------------------------------------------
   Gaya untuk modal pop-up, overlay, dan notifikasi kustom.
   =================================================================== */
body.modal-open {
  overflow: hidden;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .7);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    z-index: 9999;
}

.modal-content {
    background: var(--background-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--background-feature);
    box-shadow: 0 0 25px rgba(0, 0, 0, .5);
    animation: scaleIn .3s ease;
    text-align: center;
    width: 100%;
    max-width: 420px;
    max-height: 90vh; /* Batasi tinggi total */
    display: flex;        /* Gunakan flexbox untuk layout fleksibel */
    flex-direction: column;
}

.modal-content h3 {
    margin-bottom: 1.5rem;
    flex-shrink: 0; /* Mencegah judul terkompresi */
}

/* Kunci utama: Hanya area form yang bisa di-scroll jika isinya panjang */
.modal-content > form {
    overflow-y: auto;
    flex-grow: 1; /* Biarkan form mengisi sisa ruang */
    padding-right: 15px; /* Beri ruang untuk scrollbar */
    margin-right: -15px; /* Trik agar lebar konten tidak bergeser */
    scrollbar-width: thin; /* Untuk Firefox */
    scrollbar-color: var(--background-feature) var(--background-dark); /* Untuk Firefox */
}
.modal-content > form::-webkit-scrollbar { width: 8px; }
.modal-content > form::-webkit-scrollbar-track { background: transparent; }
.modal-content > form::-webkit-scrollbar-thumb {
    background-color: var(--background-feature);
    border-radius: 4px;
}
.modal-content > form::-webkit-scrollbar-thumb:hover { background-color: var(--accent-primary); }


.modal-buttons {
    margin-top: 1.5rem;
    flex-shrink: 0; /* Mencegah tombol terkompresi */
}

.modal-buttons .btn {
    flex: 1;
    margin-top: 0;
}

#custom-alert-message {
    margin-bottom: 20px;
}


/* ===================================================================
   6. ANIMASI & KELAS UTILITAS
   -------------------------------------------------------------------
   Definisi @keyframes dan kelas helper kecil.
   =================================================================== */
.hidden {
    display: none;
}

.gear-box.glow-gold {
    animation: accent-glow-animation 1.5s infinite ease-in-out;
}

@keyframes floatUpDown {
    0%, 100% { margin-top: 0; }
    50% { margin-top: -10px; }
}

@keyframes accent-glow-animation {
    0%, 100% { box-shadow: 0 0 4px 2px var(--glow-color); }
    50% { box-shadow: 0 0 12px 5px var(--glow-color); }
}

@keyframes scaleIn {
    0% { transform: scale(.8); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* Kustomisasi scrollbar untuk dropdown */
.custom-options::-webkit-scrollbar { width: 8px; }
.custom-options::-webkit-scrollbar-track { background: var(--background-dark); }
.custom-options::-webkit-scrollbar-thumb {
  background-color: var(--background-feature);
  border-radius: 4px;
}

/* ===================================================================
   7. GAYA RESPONSIVE (MEDIA QUERIES)
   -------------------------------------------------------------------
   Penyesuaian gaya untuk perangkat dengan layar berbeda.
   =================================================================== */

/* Tablet & Perangkat Kecil (<= 768px) */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem 1rem 1rem;
    }
    .card {
        padding: 1.5rem;
    }
}

/* Mobile (<= 480px) */
@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    .gear-box {
        width: 55px;
        height: 55px;
    }
    .gear-tier, .gear-stars {
        font-size: 7px;
    }
    #gear-preview img {
        width: 100px;
    }
    .materials {
        gap: 1rem;
    }
    .material-box {
        width: 60px;
    }
    .material-box img {
        height: 60px;
    }
    /* Penyesuaian posisi gear di mobile */
    .box-left .gear-box:nth-child(1),
    .box-left .gear-box:nth-child(3) {
        transform: translateX(15px);
    }
    .box-left .gear-box:nth-child(1):hover,
    .box-left .gear-box:nth-child(3):hover {
        transform: translateX(15px) scale(1.1);
    }
    .box-left .gear-box:nth-child(2) {
        transform: translateX(0px);
    }
    .box-left .gear-box:nth-child(2):hover {
        transform: translateX(0px) scale(1.1);
    }
    .box-right .gear-box:nth-child(1),
    .box-right .gear-box:nth-child(3) {
        transform: translateX(-15px);
    }
    .box-right .gear-box:nth-child(1):hover,
    .box-right .gear-box:nth-child(3):hover {
        transform: translateX(-15px) scale(1.1);
    }
    .box-right .gear-box:nth-child(2) {
        transform: translateX(0px);
    }
    .box-right .gear-box:nth-child(2):hover {
        transform: translateX(0px) scale(1.1);
    }
}

/* Mobile Kecil (<= 360px) */
@media (max-width: 360px) {
    .gear-box {
        width: 50px;
        height: 50px;
    }
    
    #gear-preview img {
        width: 80px;
    }
}