:root {
    color-scheme: dark;
}

.card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06), 0 8px 24px rgba(0, 0, 0, 0.35);
    border-radius: 16px;
    padding: 16px;
}

.input {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 10px 12px;
    width: 100%;
    color: #e5e7eb;
    outline: none;
}

.input:focus {
    border-color: rgba(255, 255, 255, 0.25);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.12);
}

.label {
    display: block;
    font-size: 0.85rem;
    color: #a1a1aa;
    margin-bottom: 6px;
}

.hint {
    font-size: 0.8rem;
    color: #9ca3af;
}

.btn {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 0.95rem;
    color: #e5e7eb;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.16);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 0.95rem;
    color: #e5e7eb;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

#preview > canvas,
#preview > svg {
    max-width: 100%;
    height: auto;
    display: block;
}