/* Sprinttrack Customizer - modern styling */
.stc-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    background: #050608;
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 18px 45px rgba(0,0,0,0.6);
    color: #f5f5f5;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.stc-preview-column {
    flex: 1 1 520px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

#stc-canvas {
    width: 100%;
    height: auto;
    max-width: 1074px;
    border-radius: 16px;
    background: #000;
}

.stc-controls-column {
    flex: 0 0 360px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.stc-title {
    font-size: 1.6rem;
    margin: 0 0 2px;
    font-weight: 650;
}

.stc-subtitle {
    font-size: 0.85rem;
    color: #bbbbbb;
    margin: 0 0 8px;
}

.stc-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stc-label {
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #cccccc;
}

/* Accordion */
.stc-accordion {
    background: #111217;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #262832;
}

.stc-accordion-header {
    width: 100%;
    padding: 10px 14px;
    background: transparent;
    border: none;
    color: #f5f5f5;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 0.95rem;
}

.stc-accordion-header:hover {
    background: radial-gradient(circle at top left, #1f2933, #050608);
}

.stc-accordion-icon {
    font-size: 1.2rem;
}

.stc-accordion-panel {
    padding: 10px 14px 12px;
    border-top: 1px solid #262832;
}

/* Colour grid */
.stc-color-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
    margin-bottom: 8px;
}

.stc-color-swatch {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: 2px solid transparent;
    background: var(--stc-color, #ffffff);
    cursor: pointer;
    padding: 0;
}

.stc-color-swatch.is-active {
    border-color: #00e0ff;
    box-shadow: 0 0 0 2px rgba(0,224,255,0.4);
}

.stc-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    cursor: pointer;
}

.stc-checkbox input {
    width: 16px;
    height: 16px;
}

/* Upload */
.stc-upload input[type="file"] {
    font-size: 0.85rem;
}

.stc-helptext {
    font-size: 0.8rem;
    color: #aaaaaa;
    margin: 0;
}

/* Buttons */
.stc-button {
    border-radius: 999px;
    padding: 10px 20px;
    border: none;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
}

.stc-download-button {
    background: linear-gradient(135deg, #00e0ff, #35ff7a);
    color: #050608;
    box-shadow: 0 12px 30px rgba(0, 224, 255, 0.3);
}

.stc-download-button:hover {
    transform: translateY(-1px);
}

/* Responsive */
@media (max-width: 900px) {
    .stc-wrapper {
        padding: 16px;
    }
    .stc-controls-column {
        flex: 1 1 100%;
    }
}


.stc-select {
    background: #050608;
    border-radius: 999px;
    border: 1px solid #262832;
    padding: 6px 12px;
    color: #f5f5f5;
    font-size: 0.9rem;
}