:root {
    --primary-color: #f7f305; /* Fortnite Yellow */
    --secondary-color: #00d2ff;
    --dark-bg: #111;
}

body {
    margin: 0;
    padding: 0;
    background: url('https://wallpaperaccess.com/full/1511658.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: 'Oswald', sans-serif;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 0;
}

.container {
    position: relative;
    z-index: 1;
    width: 90%;
    max-width: 450px;
}

.main-card {
    background: rgba(15, 15, 15, 0.95);
    border: 4px solid var(--primary-color);
    padding: 35px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 0 40px rgba(247, 243, 5, 0.4);
}

.f-logo { width: 70px; margin-bottom: 15px; }

.title {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 25px;
    letter-spacing: 1px;
}

input[type="text"] {
    width: 100%;
    padding: 15px;
    border-radius: 4px;
    border: 2px solid #333;
    background: #000;
    color: white;
    font-size: 18px;
    box-sizing: border-box;
    margin-bottom: 20px;
    text-align: center;
}

.label { margin-bottom: 10px; font-size: 14px; color: #aaa; }

.device-grid, .vbucks-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 25px;
}

.device-item, .v-option {
    background: #222;
    padding: 15px;
    border: 2px solid transparent;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.device-item.selected, .v-option.selected {
    border-color: var(--primary-color);
    background: #333;
}

.v-option img {
    width: 45px;
    display: block;
    margin: 0 auto 8px;
}

.next-btn {
    background: var(--primary-color);
    color: #000;
    border: none;
    padding: 15px;
    width: 100%;
    font-size: 22px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 4px;
}

.next-btn:hover { background: #fff; }

.verify-btn {
    display: block;
    background: #00ff00;
    color: #000;
    text-decoration: none;
    padding: 18px;
    font-size: 24px;
    font-weight: bold;
    border-radius: 4px;
    margin-top: 20px;
}

.pulse { animation: pulse 1.5s infinite; }

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(0, 255, 0, 0.7); }
    70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(0, 255, 0, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(0, 255, 0, 0); }
}

.log-box {
    background: #000;
    color: #0f0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    padding: 15px;
    height: 100px;
    overflow-y: hidden;
    text-align: left;
    border-radius: 5px;
}

/* Loader Styles */
.loading-ring { display: inline-block; position: relative; width: 80px; height: 80px; }
.loading-ring div { box-sizing: border-box; display: block; position: absolute; width: 64px; height: 64px; margin: 8px; border: 8px solid var(--primary-color); border-radius: 50%; animation: loading 1.2s linear infinite; border-color: var(--primary-color) transparent transparent transparent; }
@keyframes loading { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }