body.hero-background {
    background-image: url('headphones-4223911_1920.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

#auth-card {
    border: none;
    border-radius: 1.5rem;
    background-color: rgba(233, 242, 255, 0.98);
    box-shadow: 0 1.5rem 3rem rgba(13, 110, 253, 0.18);
}

#auth-card .card-body {
    padding: 2rem;
    background: transparent;
}

#auth-card h5 {
    font-weight: 600;
}

#drop-area {
    opacity: 0.95;
    border: 2px dashed #0d6efd;
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
    color: #6c757d;
    cursor: pointer;
    transition: all 0.25s ease-in-out;
    background-color: #f8f9fa;
}

#drop-area.disabled {
    cursor: not-allowed;
    pointer-events: none;
}

#drop-area.disabled * {
    pointer-events: none;
}

#drop-area.dragover {
    background-color: #e9f2ff;
    border-color: #0a58ca;
    color: #0a58ca;
    box-shadow: 0 0 15px rgba(13,110,253,0.4);
}

.step i {
    font-size: 2rem;
    color: #0d6efd;
}

.result-card {
    flex: 1 1 300px;
    max-width: 320px;
    text-align: center;
    background-color: #ffffff;
    border-radius: 1rem;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    padding: 1rem;
    transition: transform 0.2s ease;
}

.result-card:hover {
    transform: translateY(-5px);
}

.result-card video {
    width: 100%;
    border-radius: 0.5rem;
    box-shadow: 0 0 8px rgba(0,0,0,0.2);
    margin-bottom: 1rem;
}

.results-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.medal-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.gold { color: #d4af37; }
.silver { color: #c0c0c0; }
.bronze { color: #cd7f32; }

.btn-gold {
    background-color: #d4af37;
    color: white;
    border: none;
}

.btn-gold:hover {
    background-color: #b7950b;
    color: white;
}

.btn-silver {
    background-color: #c0c0c0;
    color: white;
    border: none;
}

.btn-silver:hover {
    background-color: #a9a9a9;
    color: white;
}

.btn-bronze {
    background-color: #cd7f32;
    color: white;
    border: none;
}

.btn-bronze:hover {
    background-color: #a35d1e;
    color: white;
}

.hero-section {
    background: rgba(255,255,255,0.95);
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.25);
}
.hero-section .step {
    background: transparent;
    box-shadow: none;
}

.upload-section {
    background: rgba(255,255,255,0.95);
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: 0 1.5rem 3rem rgba(13,110,253,0.1);
}