.qr-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--control-outline);
    border-radius: 8px;
    background: var(--control-bg);
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--text-accent);
    box-shadow: 0 0 0 3px rgba(94, 114, 190, 0.15);
}

.file-input-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: 100%;
}

.file-input-wrapper .file-input {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 2;
}

.file-input-label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border: 1px solid var(--control-outline);
    border-radius: 8px;
    background: var(--control-bg);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    color: var(--text-secondary);
}

.file-input-label:hover {
    border-color: var(--text-accent);
    background: var(--bg-dark);
}

.file-input-label .file-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 10px 16px;
    font-size: 15px;
    background: var(--text-accent);
    color: var(--bg);
    border-color: var(--text-accent);
    border-radius: 10px;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: all 0.25s cubic-bezier(0.2, 0, 0, 1);
}

.btn-submit:hover {
    background: var(--bg);
    color: var(--text-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-submit:active {
    transform: scale(0.97);
}

.qr-result {
    text-align: center;
    margin-top: 30px;
}

.qr-image-container {
    display: inline-block;
    padding: 12px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    max-width: 100%;
}

.qr-image-container img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.qr-actions {
    margin-top: 16px;
}

.error {
    color: #d32f2f;
    font-size: 13px;
    margin-top: 4px;
}

@media (max-width: 640px) {
    .qr-form { max-width: 100%; }
}