.ttbv {
    --ttbv-dark-green: #404435;
    --ttbv-light-green: #8ebda3;
    --ttbv-blush: #cc9280;
    --ttbv-dark-grey: #454442;
    --ttbv-light-grey: #f1f1f2;
    --ttbv-grey: #93918c;
    --ttbv-white: #ffffff;
    --ttbv-black: #000000;

    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ttbv-dark-grey);
    max-width: 1280px;
    margin: 0 auto;
}

.ttbv * {
    box-sizing: border-box;
    font-family: inherit;
}

.ttbv button,
.ttbv input,
.ttbv select,
.ttbv textarea {
    font-family: inherit;
}

.ttbv__header h2 {
    font-size: 28px;
    line-height: 1.15;
    margin: 0 0 6px;
    color: var(--ttbv-dark-green);
}

.ttbv__header p {
    margin: 0 0 18px;
    color: var(--ttbv-dark-grey);
}

.ttbv__layout {
    display: grid;
    grid-template-columns: 360px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
}

.ttbv__panel,
.ttbv__stage-card {
    background: var(--ttbv-white);
    border: 1px solid var(--ttbv-light-grey);
    border-radius: 0;
    box-shadow: 0 12px 35px rgba(69, 68, 66, 0.08);
}

.ttbv__panel {
    padding: 18px;
    min-height: 360px;
}

.ttbv__stage-card {
    padding: 18px;
}

.ttbv__field {
    margin-bottom: 14px;
}

.ttbv__field label,
.ttbv__controls span {
    display: block;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--ttbv-dark-green);
}

.ttbv input[type=file],
.ttbv input[type=text],
.ttbv input[type=search],
.ttbv select {
    width: 100%;
    border: 1px solid var(--ttbv-grey);
    border-radius: 0;
    padding: 10px;
    background: var(--ttbv-white);
    color: var(--ttbv-dark-grey);
}

.ttbv input[type=file]:focus,
.ttbv input[type=text]:focus,
.ttbv input[type=search]:focus,
.ttbv select:focus {
    outline: none;
    border-color: var(--ttbv-light-green);
    box-shadow: 0 0 0 2px rgba(142, 189, 163, 0.2);
}

.ttbv__button {
    appearance: none;
    border: 1px solid var(--ttbv-dark-green);
    border-radius: 0;
    background: var(--ttbv-dark-green);
    color: var(--ttbv-white);
    padding: 10px 15px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.1s ease, opacity 0.1s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.ttbv__button:hover {
    transform: translateY(-1px);
    background: var(--ttbv-light-green);
    border-color: var(--ttbv-light-green);
    color: var(--ttbv-dark-green);
}

.ttbv__button:disabled,
.ttbv__button[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.ttbv__button--secondary {
    background: var(--ttbv-light-grey);
    color: var(--ttbv-dark-grey);
    border: 1px solid var(--ttbv-grey);
}

.ttbv__button--secondary:hover {
    background: var(--ttbv-blush);
    border-color: var(--ttbv-blush);
    color: var(--ttbv-dark-green);
}

.ttbv__button.is-active {
    background: var(--ttbv-blush);
    border-color: var(--ttbv-blush);
    color: var(--ttbv-dark-green);
}

.ttbv-ai-analyze,
.ttbv-ai-render {
    background: var(--ttbv-dark-green);
    border-color: var(--ttbv-dark-green);
    color: var(--ttbv-white);
}

.ttbv-ai-analyze:hover,
.ttbv-ai-render:hover {
    background: var(--ttbv-light-green);
    border-color: var(--ttbv-light-green);
    color: var(--ttbv-dark-green);
}

.ttbv-load-swatches {
    width: 100%;
    margin-bottom: 12px;
}

.ttbv__status {
    font-size: 13px;
    color: var(--ttbv-dark-grey);
    margin: 10px 0 12px;
    min-height: 18px;
}

.ttbv__swatches {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    max-height: 580px;
    overflow: auto;
    padding-right: 4px;
}

.ttbv__swatch {
    border: 1px solid var(--ttbv-light-grey);
    border-radius: 0;
    background: var(--ttbv-white);
    padding: 8px;
    text-align: left;
    cursor: pointer;
    transition: border-color 0.12s ease, box-shadow 0.12s ease, transform 0.12s ease;
}

.ttbv__swatch:hover {
    transform: translateY(-1px);
    border-color: var(--ttbv-light-green);
}

.ttbv__swatch.is-active {
    border-color: var(--ttbv-dark-green);
    box-shadow: 0 0 0 2px rgba(64, 68, 53, 0.16);
}

.ttbv__swatch img {
    display: block;
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 0;
    background: var(--ttbv-light-grey);
}

.ttbv__swatch span {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--ttbv-dark-grey);
    margin-top: 7px;
    line-height: 1.25;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ttbv__toolbar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 12px;
    align-items: center;
}

.ttbv__controls {
    display: grid;
    grid-template-columns: minmax(220px, 360px);
    gap: 12px;
    background: var(--ttbv-light-grey);
    border: 1px solid var(--ttbv-grey);
    border-radius: 0;
    padding: 12px;
    margin-bottom: 14px;
}

.ttbv__controls input {
    width: 100%;
    accent-color: var(--ttbv-dark-green);
}

.ttbv__canvas-wrap {
    position: relative;
    width: 100%;
    border: 1px dashed var(--ttbv-grey);
    border-radius: 0;
    overflow: hidden;
    background-color: var(--ttbv-white);
    background-image:
        linear-gradient(45deg, var(--ttbv-light-grey) 25%, transparent 25%),
        linear-gradient(-45deg, var(--ttbv-light-grey) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--ttbv-light-grey) 75%),
        linear-gradient(-45deg, transparent 75%, var(--ttbv-light-grey) 75%);
    background-size: 28px 28px;
    background-position: 0 0, 0 14px, 14px -14px, -14px 0;
}

.ttbv-canvas {
    display: block;
    width: 100%;
    height: auto;
    min-height: 360px;
}

.ttbv__canvas-wrap canvas {
    cursor: grab;
}

.ttbv__canvas-wrap canvas:active {
    cursor: grabbing;
}

.ttbv__hint {
    font-size: 13px;
    color: var(--ttbv-dark-grey);
    margin: 12px 0 0;
}

.ttbv__hint--top {
    margin: 0 0 12px;
    padding: 10px 12px;
    background: rgba(142, 189, 163, 0.16);
    border: 1px solid var(--ttbv-light-green);
    border-radius: 0;
    color: var(--ttbv-dark-grey);
}

.ttbv__empty {
    grid-column: 1 / -1;
    border: 1px dashed var(--ttbv-grey);
    border-radius: 0;
    padding: 14px;
    color: var(--ttbv-dark-grey);
    font-size: 13px;
    background: var(--ttbv-light-grey);
}

.ttbv__error {
    color: #8b2e24;
}

.ttbv__success {
    color: var(--ttbv-dark-green);
}

.ttbv__suggestions {
    margin: 0 0 14px;
    background: rgba(204, 146, 128, 0.12);
    border: 1px solid var(--ttbv-blush);
    border-radius: 0;
    padding: 14px;
    color: var(--ttbv-dark-grey);
}

.ttbv__suggestions h3 {
    margin: 0 0 8px;
    font-size: 16px;
    line-height: 1.25;
    color: var(--ttbv-dark-green);
}

.ttbv__suggestions p {
    margin: 0;
    color: var(--ttbv-dark-grey);
    font-size: 13px;
    line-height: 1.5;
}

.ttbv__suggestion-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 10px;
}

.ttbv__suggestion-grid > div {
    background: var(--ttbv-white);
    border: 1px solid var(--ttbv-light-grey);
    border-radius: 0;
    padding: 12px;
}

.ttbv__suggestion-grid strong {
    display: block;
    font-size: 13px;
    color: var(--ttbv-dark-green);
    margin-bottom: 5px;
}

.ttbv__suggestions ul {
    margin: 12px 0 0;
    padding-left: 18px;
    color: var(--ttbv-dark-grey);
    font-size: 13px;
    line-height: 1.5;
}

.ttbv__suggestions li + li {
    margin-top: 5px;
}

.ttbv__field--search {
    margin-top: 8px;
}

.ttbv-swatch-search {
    font-size: 14px;
}

.ttbv__small-note {
    font-size: 12px;
    color: var(--ttbv-grey);
    margin-top: 8px;
}

.ttbv__render {
    margin-top: 16px;
    background: rgba(142, 189, 163, 0.12);
    border: 1px solid var(--ttbv-light-green);
    border-radius: 0;
    padding: 14px;
}

.ttbv__render-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.ttbv__render-head h3 {
    margin: 0;
    font-size: 16px;
    color: var(--ttbv-dark-green);
}

.ttbv-render-image {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 0;
    border: 1px solid var(--ttbv-light-grey);
    background: var(--ttbv-white);
}

.ttbv-render-download {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

@media (max-width: 900px) {
    .ttbv__layout {
        grid-template-columns: 1fr;
    }

    .ttbv__swatches {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        max-height: 360px;
    }
}

@media (max-width: 700px) {
    .ttbv__suggestion-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .ttbv__swatches {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ttbv__toolbar {
        display: grid;
    }

    .ttbv__button {
        width: 100%;
    }

    .ttbv__render-head {
        display: block;
    }

    .ttbv-render-download {
        margin-top: 10px;
        width: 100%;
        justify-content: center;
    }
}