:root {
    --bg-dark: #0f172a;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --accent: linear-gradient(135deg, #38bdf8, #1d4ed8);
    --text-main: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.1);
    --input-bg: rgba(15, 23, 42, 0.6);
}

/* 1. KRİTİK DEĞİŞİKLİK: Body şeffaf olmalı */
html {
    background-color: var(--bg-dark); /* Koyu renk en arkada kalsın */
    height: 100%;
}

body {
    height: 100%;
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background-color: transparent !important; /* Body'deki o engelleyici rengi kaldırdık */
    color: var(--text-main);
    overflow-x: hidden;
}

/* 2. VİDEO KATMANI: Z-index ve Yerleşim */
#bg-video {
    position: fixed;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -1; /* HTML'in üstünde, içeriğin altında */
    transform: translate(-50%, -50%);
    object-fit: cover;
    opacity: 0.30 !important; /* %15 yaptık ki net görelim */
    filter: blur(5px) grayscale(0.2);
    pointer-events: none;
    display: block !important;
}

.vidipixel-logo {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -2px;
    color: #f8fafc;
    margin-bottom: 0;
    line-height: 1.1;
    text-transform: uppercase;
}

.vidipixel-logo span {
    font-weight: 200;
    letter-spacing: 4px;
    margin-left: 8px;
    background: linear-gradient(to right, #38bdf8, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 15px rgba(56, 189, 248, 0.3);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 35px;
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    width: 100%;
    max-width: 480px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 10;
}

.custom-input {
    background: var(--input-bg) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
    border-radius: 15px;
    padding: 15px;
}

.custom-input:focus {
    border-color: #38bdf8 !important;
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.1) !important;
}

.upload-zone {
    display: block;
    padding: 40px 20px;
    border: 2px dashed var(--border-color);
    border-radius: 25px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
    text-align: center;
    transition: 0.3s;
}

.upload-zone:hover {
    background: rgba(56, 189, 248, 0.05);
    border-color: #38bdf8;
    transform: translateY(-3px);
}

.btn-vidipixel {
    background: var(--accent);
    border: none;
    color: white !important;
    font-weight: 700;
    padding: 18px;
    border-radius: 18px;
    text-transform: uppercase;
    box-shadow: 0 10px 25px -5px rgba(29, 78, 216, 0.4);
    transition: 0.3s;
}

.btn-vidipixel:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px -5px rgba(29, 78, 216, 0.6);
}

.upload-item {
    background: rgba(15, 23, 42, 0.8) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 15px;
    padding: 12px;
    animation: slideUp 0.4s ease-out forwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.img-thumbnail-custom {
    width: 45px;
    height: 45px;
    object-fit: cover;
    border-radius: 10px;
}

.progress {
    background-color: rgba(255, 255, 255, 0.05) !important;
    border-radius: 10px;
}

#file-list::-webkit-scrollbar { width: 5px; }
#file-list::-webkit-scrollbar-thumb { background: #38bdf8; border-radius: 10px; }

@media (max-width: 480px) {
    .glass-card { padding: 1.5rem; border-radius: 25px; }
    .vidipixel-logo { font-size: 2.5rem; }
    .vidipixel-logo span { letter-spacing: 2px; margin-left: 4px; }
}

/* Readonly input için özel stil */
.custom-input[readonly] {
    background-color: rgba(255, 255, 255, 0.05); /* Daha koyu/donuk bir zemin */
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: not-allowed; /* İmleci yasak işaretine çevirir */
    color: #adb5bd; /* Metni biraz daha soluk yap */
    box-shadow: inset 0 0 5px rgba(0,0,0,0.2); /* İçten gölgeyle derinlik ver */
}