#dtf-magic-studio-app {
    width: 100%;
    max-width: 100%;
    min-height: min(760px, 100vh);
    background: #f7f7f7;
    border: 1px solid #ddd;
    border-radius: 16px;
    overflow: hidden;
    font-family: Arial, Helvetica, sans-serif;
    color: #151515;}

.dtfms-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    background: #101828;
    color: #fff;
}

.dtfms-brand {
    display: flex;
    flex-direction: column;
    margin-right: auto;
    line-height: 1.2;
}

.dtfms-brand span {
    font-size: 12px;
    opacity: .75;
}

.dtfms-upload,
#dtfms-export,
#dtfms-apply-size {
    background: #496DAE;
    color: #fff;
    border: 0;
    border-radius: 10px;
    padding: 10px 14px;
    font-weight: 700;
    cursor: pointer;
}

.dtfms-upload input {
    display: none;
}

.dtfms-layout {
    display: grid;
    grid-template-columns: clamp(300px, 26vw, 390px) minmax(0, 1fr);
    min-height: 700px;
}

.dtfms-panel {
    background: #ffffff;
    border-right: 1px solid #ddd;
    padding: 14px;
    overflow-y: auto;
}

.dtfms-panel details {
    border: 1px solid #e4e4e4;
    border-radius: 12px;
    margin-bottom: 12px;
    padding: 10px;
    background: #fbfbfb;
}

.dtfms-panel summary {
    font-weight: 800;
    cursor: pointer;
    margin-bottom: 10px;
}

.dtfms-panel label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    margin: 12px 0;
}

.dtfms-panel input,
.dtfms-panel select {
    width: 100%;
    margin-top: 6px;
}

.dtfms-panel input[type="color"] {
    height: 42px;
    padding: 2px;
}

.dtfms-check {
    display: flex !important;
    align-items: center;
    gap: 8px;
}

.dtfms-check input {
    width: auto;
    margin: 0;
}

.dtfms-canvas-wrap {
    background:
        linear-gradient(45deg, #ddd 25%, transparent 25%),
        linear-gradient(-45deg, #ddd 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #ddd 75%),
        linear-gradient(-45deg, transparent 75%, #ddd 75%);
    background-size: 24px 24px;
    background-position: 0 0, 0 12px, 12px -12px, -12px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    padding: 24px;
}

.dtfms-stage {
    transform-origin: center center;
    box-shadow: 0 15px 40px rgba(0,0,0,.18);
}

#dtfms-canvas {
    display: block;
    max-width: none;
    background: transparent;
}

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

    .dtfms-panel {
        border-right: 0;
        border-bottom: 1px solid #ddd;
    }

    .dtfms-toolbar {
        flex-wrap: wrap;
    }
}


/* Photoshop style Levels panel */
.dtfms-levels-block {
    margin: 14px 0 18px;
}

.dtfms-level-title {
    font-weight: 800;
    color: #777;
    margin-bottom: 8px;
}

.dtfms-histogram {
    width: 100%;
    height: 82px;
    background: #151515;
    border: 1px solid #444;
    border-radius: 8px;
    display: block;
}

.dtfms-level-gradient {
    width: 100%;
    height: 18px;
    border-radius: 999px;
    background: linear-gradient(to right, #000, #fff);
    border: 1px solid #333;
    margin: 12px 0 4px;
}

.dtfms-triple-slider,
.dtfms-dual-slider {
    position: relative;
    height: 32px;
    margin-bottom: 8px;
}

.dtfms-triple-slider input[type="range"],
.dtfms-dual-slider input[type="range"] {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    pointer-events: none;
    appearance: none;
    background: transparent;
}

.dtfms-triple-slider input[type="range"]::-webkit-slider-thumb,
.dtfms-dual-slider input[type="range"]::-webkit-slider-thumb {
    pointer-events: auto;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 3px solid #fff;
    background: #5aa3df;
    box-shadow: 0 0 0 2px rgba(0,0,0,.35);
    cursor: pointer;
}

.dtfms-triple-slider input[type="range"]::-moz-range-thumb,
.dtfms-dual-slider input[type="range"]::-moz-range-thumb {
    pointer-events: auto;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 3px solid #fff;
    background: #5aa3df;
    box-shadow: 0 0 0 2px rgba(0,0,0,.35);
    cursor: pointer;
}

#dtfms-input-black::-webkit-slider-thumb,
#dtfms-output-black::-webkit-slider-thumb {
    background: #111;
}

#dtfms-input-white::-webkit-slider-thumb,
#dtfms-output-white::-webkit-slider-thumb {
    background: #f7f7f7;
}

#dtfms-input-black::-moz-range-thumb,
#dtfms-output-black::-moz-range-thumb {
    background: #111;
}

#dtfms-input-white::-moz-range-thumb,
#dtfms-output-white::-moz-range-thumb {
    background: #f7f7f7;
}

.dtfms-level-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.dtfms-level-values.two {
    grid-template-columns: repeat(2, 1fr);
}

.dtfms-level-values input {
    background: #262832;
    color: #fff;
    border: 1px solid #454752;
    border-radius: 10px;
    padding: 9px;
    text-align: center;
    font-size: 15px;
    font-weight: 800;
}


/* Liquid responsive layout updates */
.dtfms-canvas-wrap {
    min-width: 0;
}

.dtfms-stage {
    max-width: 100%;
    max-height: calc(100vh - 170px);
    overflow: auto;
}

#dtfms-canvas {
    max-width: 100%;
    height: auto;
}

/* Tablet layout */
@media (max-width: 1100px) {
    .dtfms-layout {
        grid-template-columns: 320px minmax(0, 1fr);
    }

    .dtfms-toolbar {
        gap: 8px;
    }

    .dtfms-stage {
        max-height: calc(100vh - 210px);
    }
}

/* Mobile friendly stacked layout */
@media (max-width: 768px) {
    #dtf-magic-studio-app {
        border-radius: 12px;
        min-height: auto;
    }

    .dtfms-toolbar {
        position: sticky;
        top: 0;
        z-index: 10;
        flex-wrap: wrap;
    }

    .dtfms-layout {
        display: flex;
        flex-direction: column;
    }

    .dtfms-panel {
        width: 100%;
        max-height: 45vh;
        overflow-y: auto;
        border-right: 0;
        border-bottom: 1px solid #ddd;
    }

    .dtfms-canvas-wrap {
        min-height: 55vh;
        padding: 12px;
        align-items: flex-start;
    }

    .dtfms-stage {
        width: 100%;
        max-height: none;
        box-shadow: 0 8px 24px rgba(0,0,0,.16);
    }

    #dtfms-canvas {
        width: 100%;
        height: auto;
    }

    .dtfms-level-values input {
        font-size: 14px;
        padding: 8px 4px;
    }
}

/* Small phones */
@media (max-width: 480px) {
    .dtfms-brand {
        width: 100%;
    }

    .dtfms-upload,
    #dtfms-export,
    #dtfms-apply-size {
        width: 100%;
        text-align: center;
    }

    .dtfms-panel {
        padding: 10px;
    }

    .dtfms-panel details {
        padding: 9px;
    }
}


.dtfms-print-size-preview {
    margin-top: 12px;
    padding: 10px;
    border-radius: 10px;
    background: #eef3ff;
    border: 1px solid #cddcff;
    font-size: 14px;
}

.dtfms-print-size-preview strong {
    display: block;
    margin-top: 4px;
    color: #496DAE;
    font-size: 16px;
}


.dtfms-shirt-presets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin: 8px 0 12px;
}

.dtfms-shirt-presets button {
    height: 34px;
    border-radius: 10px;
    border: 2px solid #d8d8d8;
    cursor: pointer;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,.18);
}

.dtfms-shirt-presets button:hover {
    transform: translateY(-1px);
    border-color: #496DAE;
}

.dtfms-shirt-preview-label {
    margin-top: 8px;
    padding: 10px;
    background: #eef3ff;
    border: 1px solid #cddcff;
    border-radius: 10px;
    font-size: 13px;
}

.dtfms-shirt-preview-label strong {
    display: block;
    margin-top: 4px;
    color: #496DAE;
    font-size: 15px;
}


.dtfms-lpi-note {
    margin: 8px 0 12px;
    padding: 9px;
    border-radius: 10px;
    background: #f4f7ff;
    border: 1px solid #ccd8ff;
    color: #334;
    font-size: 12px;
    line-height: 1.35;
}