.qr-page {
    width: 100%;
}

.qr-hero {
    margin-bottom: 36px;
}

.eyebrow {
    color: var(--mg-green);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.14em;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.qr-tool {
    align-items: stretch;
    display: grid;
    gap: 20px;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
    margin-bottom: 24px;
}

.panel,
.info-card {
    background: #ffffff;
    border: 1px solid rgba(23, 51, 63, 0.12);
    border-radius: 24px;
    box-shadow: 0 12px 36px rgba(23, 51, 63, 0.08);
    padding: 28px;
}

.panel h2,
.info-card h2 {
    color: var(--mg-black);
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.panel h2 {
    font-size: 22px;
}

.info-card h2 {
    font-size: 20px;
}

.muted,
.info-card p {
    color: var(--mg-gray);
    line-height: 1.6;
}

.field-label {
    color: var(--mg-black);
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin: 22px 0 8px;
}

.text-input {
    border: 1px solid var(--mg-gray-light);
    border-radius: 16px;
    color: var(--mg-black);
    font: inherit;
    padding: 14px 16px;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
    width: 100%;
}

.text-input:focus {
    border-color: var(--mg-green);
    box-shadow: 0 0 0 4px rgba(0, 141, 157, 0.12);
    outline: none;
}

.qr-textarea {
    min-height: 160px;
    resize: vertical;
}

.inline-code {
    background: rgba(0, 141, 157, 0.08);
    border-radius: 7px;
    color: var(--mg-green-dark);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size: 0.94em;
    padding: 2px 6px;
}

.helper-row {
    align-items: center;
    color: var(--mg-gray);
    display: flex;
    font-size: 14px;
    justify-content: space-between;
    margin-top: 10px;
}

.text-button {
    background: transparent;
    border: 0;
    color: var(--mg-green);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    padding: 4px 0;
}

.text-button:hover {
    color: var(--mg-green-dark);
    text-decoration: underline;
}

.advanced-options {
    border: 1px solid rgba(23, 51, 63, 0.12);
    border-radius: 18px;
    margin-top: 18px;
    overflow: hidden;
}

.advanced-options summary {
    color: var(--mg-black);
    cursor: pointer;
    font-weight: 700;
    list-style: none;
    padding: 16px 18px;
}

.advanced-options summary::-webkit-details-marker {
    display: none;
}

.advanced-options summary::after {
    color: var(--mg-green);
    content: "+";
    float: right;
    font-size: 22px;
    line-height: 18px;
}

.advanced-options[open] summary::after {
    content: "-";
}

.advanced-options__content {
    border-top: 1px solid rgba(23, 51, 63, 0.1);
    display: grid;
    gap: 20px;
    padding: 18px;
}

.option-section h3 {
    color: var(--mg-black);
    font-size: 16px;
    margin-bottom: 12px;
}

.option-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.color-field,
.select-field,
.check-field {
    color: var(--mg-gray);
    font-size: 14px;
}

.color-field,
.select-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.color-field input,
.select-field select {
    background: transparent;
    border: 1px solid var(--mg-gray-light);
    border-radius: 12px;
    cursor: pointer;
    height: 44px;
    padding: 4px;
    width: 100%;
}

.select-field select {
    color: var(--mg-black);
    font: inherit;
    padding: 0 12px;
}

.check-field {
    align-items: center;
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.check-field input {
    accent-color: var(--mg-green);
    height: 18px;
    width: 18px;
}

.gradient-controls {
    margin-top: 12px;
}

.tip-box {
    background-color: #e6f4f5;
    border-left: 4px solid var(--mg-green);
    border-radius: 4px;
    color: var(--mg-black);
    font-size: 15px;
    line-height: 1.6;
    margin-top: 20px;
    padding: 12px 16px;
}

.qr-preview-panel {
    display: flex;
    flex-direction: column;
}

.qr-preview-frame {
    align-items: center;
    background:
        linear-gradient(45deg, rgba(208, 221, 226, 0.3) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(208, 221, 226, 0.3) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(208, 221, 226, 0.3) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(208, 221, 226, 0.3) 75%);
    background-color: #f7faf0;
    background-position: 0 0, 0 12px, 12px -12px, -12px 0;
    background-size: 24px 24px;
    border: 1px solid rgba(23, 51, 63, 0.1);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    margin: 8px 0 14px;
    min-height: 300px;
    padding: 24px;
    position: relative;
}

#qr-canvas {
    background: #ffffff;
    border-radius: 12px;
    display: block;
    height: 256px;
    image-rendering: pixelated;
    max-height: 100%;
    max-width: 100%;
    width: 256px;
}

#qr-canvas.transparent-canvas {
    background: transparent;
}

.qr-empty-state {
    color: var(--mg-gray);
    font-weight: 500;
    position: absolute;
    text-align: center;
}

#qr-status.error {
    color: var(--mg-red);
    font-weight: 700;
}

.download-grid {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: auto;
    padding-top: 18px;
}

.primary-button,
.secondary-button {
    border: 0;
    border-radius: 999px;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    padding: 12px 16px;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.primary-button {
    background: var(--mg-green);
    color: #ffffff;
}

.primary-button:hover {
    background: var(--mg-green-dark);
    box-shadow: 0 10px 24px rgba(0, 141, 157, 0.22);
    transform: translateY(-1px);
}

.secondary-button {
    background: rgba(0, 141, 157, 0.1);
    color: var(--mg-green-dark);
}

.secondary-button:hover {
    background: rgba(0, 141, 157, 0.16);
    box-shadow: 0 10px 24px rgba(23, 51, 63, 0.08);
    transform: translateY(-1px);
}

.primary-button:disabled,
.secondary-button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
    transform: none;
}

.info-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 900px) {
    .qr-tool,
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .panel,
    .info-card {
        border-radius: 20px;
        padding: 22px;
    }

    .download-grid {
        grid-template-columns: 1fr;
    }

    .option-grid {
        grid-template-columns: 1fr;
    }
}