/* Import font pixel dari Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=VT323&display=swap');

/* Variabel Warna untuk tema */
:root {
    --dark-blue-bg: #0a192f;
    --light-blue-bg: #112240;
    --lightest-text: #ccd6f6;
    --light-text: #8892b0;
    --cyan-accent: #64ffda;
    --cyan-transparent: rgba(100, 255, 218, 0.1);
}

/* Animasi untuk efek scanline pada background */
@keyframes scanline {
    0% { transform: translateY(0%); }
    100% { transform: translateY(100%); }
}

/* === GAYA DASAR & LATAR BELAKANG === */
body {
    font-family: 'VT323', monospace;
    background-color: var(--dark-blue-bg);
    color: var(--light-text);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px 0; /* Tambahkan padding vertikal */
    font-size: 20px;
    overflow-x: hidden; /* Ganti overflow agar bisa scroll vertikal di HP */
}

body::before {
    content: " ";
    display: block;
    position: fixed; /* Ganti ke fixed agar scanline tidak ikut scroll */
    top: -50%;
    left: 0;
    width: 100%;
    height: 200%;
    background: repeating-linear-gradient(rgba(0, 0, 0, 0) 0px, rgba(0, 0, 0, 0) 3px, rgba(255, 255, 255, 0.05) 4px);
    z-index: -1;
    animation: scanline 0.4s linear infinite;
}

/* === KONTAINER UTAMA === */
.container {
    background-color: rgba(17, 34, 64, 0.85);
    backdrop-filter: blur(10px);
    padding: 30px;
    border: 3px solid var(--cyan-accent);
    box-shadow: 0 0 25px var(--cyan-transparent);
    text-align: center;
    width: 90%;
    max-width: 550px;
    border-radius: 0;
    transition: all 0.3s ease;
    box-sizing: border-box; /* Tambahkan box-sizing */
}

/* === PEMILIH MODE === */
.mode-selector {
    display: flex;
    border: 2px solid var(--light-text);
    margin-bottom: 30px;
    padding: 0;
}

.mode-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background-color: transparent;
    font-family: 'VT323', monospace;
    font-size: 22px;
    color: var(--light-text);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    border-radius: 0;
}

.mode-btn.active {
    background-color: var(--cyan-accent);
    color: var(--dark-blue-bg);
    text-shadow: 0 0 5px var(--dark-blue-bg);
}

.mode-btn:not(.active):hover {
    background-color: var(--cyan-transparent);
    color: var(--cyan-accent);
}

/* === TEKS & JUDUL === */
h1 {
    color: var(--lightest-text);
    margin-bottom: 10px;
    font-size: 2.5em;
    text-shadow: 0 0 8px var(--cyan-accent);
}

p {
    color: var(--light-text);
    margin-bottom: 30px;
}

/* === AREA UPLOAD === */
.upload-area {
    border: 3px dashed var(--light-text);
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s;
    position: relative;
}

.upload-area::before {
    content: 'or Drag & Drop Files Here';
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--light-text);
    opacity: 0.5;
    font-size: 16px;
}

.upload-area.dragover {
    border-color: var(--cyan-accent);
    background-color: var(--cyan-transparent);
    box-shadow: inset 0 0 20px var(--cyan-transparent);
}

/* === TOMBOL-TOMBOL === */
#select-file-btn,
#convert-btn {
    font-family: 'VT323', monospace;
    font-size: 20px;
    border-radius: 0;
    cursor: pointer;
    border: 2px solid var(--cyan-accent);
    transition: all 0.2s ease-out;
    width: 100%;
    padding: 12px;
}

#select-file-btn:hover, #convert-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px var(--cyan-transparent);
}

#select-file-btn:active, #convert-btn:active {
    transform: translateY(-1px) scale(0.99);
}

#select-file-btn {
    background-color: transparent;
    color: var(--cyan-accent);
    width: auto;
    margin-bottom: 15px;
}

#file-name {
    color: var(--lightest-text);
    font-style: normal;
    word-break: break-all; /* Agar nama file panjang tidak merusak layout */
}

#convert-btn {
    background-color: var(--cyan-transparent);
    color: var(--cyan-accent);
}

#convert-btn:hover {
    background-color: var(--cyan-accent);
    color: var(--dark-blue-bg);
}

#convert-btn:disabled {
    border-color: var(--light-text);
    color: var(--light-text);
    background-color: transparent;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* === LOADING BAR === */
.hidden { display: none; }
#loading { margin-top: 20px; width: 100%; }

#loading-text {
    margin-bottom: 15px;
    color: var(--lightest-text);
    animation: blink 1.5s linear infinite;
}

.progress-bar-container {
    width: 100%;
    height: 25px;
    background-color: var(--dark-blue-bg);
    border: 2px solid var(--cyan-accent);
    padding: 3px;
    box-sizing: border-box;
}

.progress-bar-fill {
    width: 0%;
    height: 100%;
    background-color: var(--cyan-accent);
    background-image: repeating-linear-gradient(90deg, var(--cyan-accent), var(--cyan-accent) 15px, transparent 15px, transparent 20px);
    transition: width 0.4s ease-in-out;
    animation: pan-background 30s linear infinite;
}

@keyframes pan-background {
    0% { background-position: 0 0; }
    100% { background-position: -400px 0; }
}

@keyframes blink {
    50% { opacity: 0.5; }
}

/* === FOOTER === */
.footer {
    /* Hapus 'position: absolute' agar footer tidak menimpa konten */
    margin-top: 20px;
    color: var(--light-text);
    opacity: 0.5;
    font-size: 14px;
}

/* =========================================
== BAGIAN RESPONSIVE (MEDIA QUERIES) ==
=========================================
*/

/* Untuk Tablet (lebar maksimal 768px) */
@media (max-width: 768px) {
    body {
        font-size: 18px; /* Sedikit kecilkan font dasar */
    }
    .container {
        padding: 25px;
    }
    h1 {
        font-size: 2.2em;
    }
    .mode-btn {
        font-size: 18px;
    }
}

/* Untuk Handphone (lebar maksimal 480px) */
@media (max-width: 480px) {
    body {
        padding: 10px 0; /* Kurangi padding atas-bawah */
        justify-content: flex-start; /* Konten mulai dari atas */
    }
    .container {
        width: 95%;
        padding: 20px;
        margin-top: 20px; /* Beri jarak dari atas layar */
    }
    h1 {
        font-size: 1.8em; /* Kecilkan judul */
    }
    p {
        font-size: 0.9em;
        margin-bottom: 20px;
    }
    .mode-selector {
        flex-direction: column; /* Ubah tombol mode menjadi vertikal */
    }
    .mode-btn {
        font-size: 20px;
    }
    .upload-area::before {
        display: none; /* Sembunyikan tulisan 'Drag & Drop' di HP */
    }
}