.j3d-gradient-generator {
    display: grid;
    gap: 24px;
}

.j3d-gradient-generator__workspace {
    display: grid;
    grid-template-columns: minmax(260px, 0.85fr) minmax(0, 1.5fr);
    gap: 24px;
    align-items: start;
}

.j3d-gradient-generator__controls {
    display: grid;
    min-width: 0;
    gap: 24px;
}

.j3d-gradient-generator__card {
    min-width: 0;
    padding: 24px;
    border: 1px solid #e8eaf3;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 2px 12px rgba(66, 76, 185, 0.08);
}

.j3d-gradient-generator__card h2 {
    margin: 0 0 20px;
    color: #2d3748;
    font-size: 21px;
}

.j3d-gradient-generator__preview {
    min-height: 300px;
    border: 1px solid #d5dae8;
    border-radius: 8px;
    background-color: #eef0f5;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.j3d-gradient-generator__preview-card {
    position: sticky;
    top: 20px;
    z-index: 2;
    align-self: start;
}

.j3d-gradient-generator__type-buttons,
.j3d-gradient-generator__actions,
.j3d-gradient-generator__presets {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.j3d-gradient-generator button {
    min-height: 44px;
    white-space: normal;
}

.j3d-gradient-generator button:focus,
.j3d-gradient-generator input:focus {
    outline: 3px solid rgba(66, 76, 185, 0.25);
    outline-offset: 1px;
}

.j3d-gradient-generator button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.j3d-gradient-generator__settings {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px 22px;
}

.j3d-gradient-generator__settings > .j3d-gradient-generator__field:first-child {
    grid-column: span 2;
}

.j3d-gradient-generator__field {
    min-width: 0;
}

.j3d-gradient-generator__field label,
.j3d-gradient-generator__shape legend {
    display: block;
    margin-bottom: 7px;
    color: #4a5568;
    font-size: 14px;
    font-weight: 600;
}

.j3d-gradient-generator__range-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.j3d-gradient-generator__range-row input[type="range"] {
    flex: 1 1 auto;
    min-width: 80px;
    accent-color: #424cb9;
}

.j3d-gradient-generator__range-row input[type="number"] {
    width: 82px;
    min-height: 44px;
    box-sizing: border-box;
    padding: 8px 9px;
    border: 1px solid #d5dae8;
    border-radius: 6px;
    color: #1f2937;
    font-size: 16px;
}

.j3d-gradient-generator__shape {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.j3d-gradient-generator__shape label {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    margin: 0 18px 0 0;
    color: #2d3748;
    cursor: pointer;
}

.j3d-gradient-generator__shape input {
    margin-right: 6px;
    accent-color: #424cb9;
}

.j3d-gradient-generator__section-heading,
.j3d-gradient-generator__stop-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.j3d-gradient-generator__section-heading h2,
.j3d-gradient-generator__stop-heading h3 {
    margin-bottom: 0;
}

.j3d-gradient-generator__count,
.j3d-gradient-generator__hint {
    color: #667085;
    font-size: 14px;
}

.j3d-gradient-generator__hint {
    margin: 8px 0 18px;
}

.j3d-gradient-generator__stops {
    display: grid;
    gap: 14px;
    margin-bottom: 20px;
}

.j3d-gradient-generator__stop {
    min-width: 0;
    padding: 18px;
    border: 1px solid #e1e5ef;
    border-radius: 8px;
    background: #fafbfe;
}

.j3d-gradient-generator__stop-heading h3 {
    color: #2d3748;
    font-size: 17px;
}

.j3d-gradient-generator__stop-order {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.j3d-gradient-generator__stop-order button,
.j3d-gradient-generator__remove {
    min-height: 38px;
    padding: 6px 10px;
    font-size: 13px;
}

.j3d-gradient-generator__stop-fields {
    display: grid;
    grid-template-columns: minmax(180px, 1.35fr) minmax(180px, 1fr) minmax(180px, 1fr);
    gap: 18px;
    margin-top: 18px;
}

.j3d-gradient-generator__color-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.j3d-gradient-generator__color-row input[type="text"] {
    flex: 1 1 auto;
    min-width: 0;
    min-height: 44px;
    box-sizing: border-box;
    padding: 8px 10px;
    border: 1px solid #d5dae8;
    border-radius: 6px;
    color: #1f2937;
    font-size: 16px;
    text-transform: uppercase;
}

.j3d-gradient-generator__color-row input[type="color"] {
    flex: 0 0 54px;
    width: 54px;
    height: 44px;
    padding: 3px;
    border: 1px solid #d5dae8;
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
}

.j3d-gradient-generator__field-error {
    display: block;
    min-height: 19px;
    margin-top: 4px;
    color: #c53030;
    font-size: 13px;
}

.j3d-gradient-generator__color-row input[aria-invalid="true"] {
    border-color: #c53030;
}

.j3d-gradient-generator__remove {
    margin-top: 14px;
}

.j3d-gradient-generator__code {
    overflow-x: auto;
    margin: 0 0 16px;
    padding: 15px;
    border: 1px solid #e1e5ef;
    border-radius: 6px;
    background: #f6f7fd;
    color: #263b80;
    font: 15px/1.6 Consolas, Monaco, monospace;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.j3d-gradient-generator__status {
    min-height: 22px;
    margin: 12px 0 0;
    color: #276749;
    font-size: 14px;
}

.j3d-gradient-generator__status.is-error {
    color: #c53030;
}

.j3d-gradient-generator__status.is-success {
    color: #276749;
}

@media (max-width: 760px) {
    .j3d-gradient-generator__workspace {
        grid-template-columns: 1fr;
    }

    .j3d-gradient-generator__preview-card {
        position: static;
    }

    .j3d-gradient-generator__settings,
    .j3d-gradient-generator__stop-fields {
        grid-template-columns: 1fr;
    }

    .j3d-gradient-generator__settings > .j3d-gradient-generator__field:first-child {
        grid-column: auto;
    }
}

@media (max-width: 480px) {
    .j3d-gradient-generator__card {
        padding: 18px;
    }

    .j3d-gradient-generator__preview {
        min-height: 210px;
    }

    .j3d-gradient-generator__type-buttons,
    .j3d-gradient-generator__actions,
    .j3d-gradient-generator__presets {
        display: grid;
    }

    .j3d-gradient-generator__type-buttons button,
    .j3d-gradient-generator__actions button,
    .j3d-gradient-generator__presets button {
        width: 100%;
    }

    .j3d-gradient-generator__stop {
        padding: 14px;
    }

    .j3d-gradient-generator__stop-heading {
        align-items: flex-start;
        flex-direction: column;
    }
}