/* DTF Builder - Premium Dark Theme v2 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --dtf-bg: #0d1117;
    --dtf-card-bg: #161b22;
    --dtf-border: #30363d;
    --dtf-text-main: #e6edf3;
    --dtf-text-muted: #8b949e;
    --dtf-accent-pink: #e6007e;
    --dtf-accent-cyan: #00e5ff;
    --dtf-danger: #f85149;
    --dtf-success: #3fb950;
    --dtf-shadow: 0 8px 32px rgba(0,0,0,0.5);
    --dtf-radius: 10px;
}

/* ============== WRAPPER ============== */
.dtf-builder-wrapper.dark-theme {
    background-color: var(--dtf-bg);
    color: var(--dtf-text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 13px;
    padding: 24px;
    border-radius: var(--dtf-radius);
    max-width: 1280px;
    margin: 0 auto 120px auto;
}

/* ============== CARDS ============== */
.dtf-card {
    background: var(--dtf-card-bg);
    border: 1px solid var(--dtf-border);
    border-radius: var(--dtf-radius);
    padding: 20px;
    margin-bottom: 16px;
}

/* ============== TOP GRID ============== */
.dtf-top-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

/* Project Name */
.dtf-project-name label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--dtf-text-muted);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.tag-required {
    color: var(--dtf-accent-pink);
    font-size: 10px;
}
.dtf-project-name input {
    width: 100%;
    background: #0d1117;
    border: 1px solid var(--dtf-border);
    color: var(--dtf-text-main);
    padding: 10px 14px;
    border-radius: 7px;
    font-size: 13px;
    font-family: inherit;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.dtf-project-name input:focus {
    border-color: var(--dtf-accent-cyan);
    outline: none;
}

/* Upload Area */
.upload-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.upload-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--dtf-text-main);
}
.upload-limit {
    font-size: 10px;
    color: var(--dtf-text-muted);
}
.upload-note {
    font-size: 11px;
    color: var(--dtf-text-muted);
    margin: 0 0 14px 0;
    line-height: 1.5;
}
.upload-warn { margin-right: 4px; }
.upload-dropzone {
    display: block;
    border: 2px dashed var(--dtf-border);
    border-radius: 7px;
    padding: 14px;
    text-align: center;
    cursor: pointer;
    color: var(--dtf-text-main);
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
    background: rgba(255,255,255,0.02);
    margin-bottom: 12px;
}
.upload-dropzone:hover {
    border-color: var(--dtf-accent-cyan);
    background: rgba(0, 229, 255, 0.04);
}
.upload-plancia-link {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    font-size: 12px;
    color: var(--dtf-text-muted);
}
.btn-plancia-link {
    background: transparent;
    border: 1px solid var(--dtf-accent-cyan);
    color: var(--dtf-accent-cyan);
    padding: 6px 12px;
    border-radius: 5px;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 0.3px;
    transition: all 0.2s;
}
.btn-plancia-link:hover {
    background: rgba(0, 229, 255, 0.1);
}
.dtf-grafiche-list {
    border: 1px solid var(--dtf-border);
    border-radius: 7px;
    overflow: hidden;
}
.grafiche-title {
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--dtf-border);
    padding: 8px 12px;
    font-size: 11px;
    font-weight: 600;
    color: var(--dtf-text-muted);
}
.grafiche-empty {
    padding: 16px;
    text-align: center;
    color: var(--dtf-text-muted);
    font-size: 12px;
}
.grafiche-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--dtf-border);
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s;
}
.grafiche-item:last-child { border-bottom: none; }
.grafiche-item:hover { background: rgba(255,255,255,0.03); }
.grafiche-item img { width: 32px; height: 32px; object-fit: contain; border-radius: 4px; }
.grafiche-item-name { flex: 1; color: var(--dtf-text-main); }
.grafiche-item-add {
    background: var(--dtf-accent-cyan);
    color: #000;
    border: none;
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 10px;
    font-weight: 700;
    cursor: pointer;
}


/* ============== MAIN LAYOUT ============== */
.dtf-main-layout {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.dtf-canvas-section {
    flex: 1;
    min-width: 0;
}
.dtf-sidebar-section {
    width: 290px;
    flex-shrink: 0;
}

/* ============== STATS BAR ============== */
.dtf-stats-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--dtf-card-bg);
    border: 1px solid var(--dtf-border);
    border-radius: 7px;
    padding: 8px 14px;
    margin-bottom: 6px;
    font-size: 12px;
    color: var(--dtf-text-muted);
}
.stat { white-space: nowrap; }
.stat-sep { opacity: 0.4; }
.zoom-controls {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--dtf-text-muted);
}
.dtf-icon-btn {
    background: transparent;
    border: none;
    color: var(--dtf-text-main);
    cursor: pointer;
    font-size: 16px;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background 0.15s;
}
.dtf-icon-btn:hover { background: rgba(255,255,255,0.08); }
#dtf-zoom-label { font-weight: 600; color: var(--dtf-text-main); }

/* ============== CANVAS OUTER ============== */
.dtf-canvas-outer {
    display: flex;
    border: 1px solid var(--dtf-border);
    border-radius: var(--dtf-radius);
    overflow: hidden;
    background-color: #21262d;
    position: relative;
}

/* LEFT RULER */
.dtf-ruler-vertical {
    width: 32px;
    flex-shrink: 0;
    background: #161b22;
    border-right: 1px solid var(--dtf-border);
    position: relative;
    overflow: hidden;
    /* height synced via JS to scroll area */
}
.dtf-ruler-mark {
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255,255,255,0.08);
}
.dtf-ruler-mark.major {
    background: rgba(0, 229, 255, 0.4);
}
.dtf-ruler-label {
    position: absolute;
    left: 2px;
    font-size: 8px;
    color: var(--dtf-text-muted);
    transform: translateY(-50%);
    white-space: nowrap;
}

/* CANVAS SCROLL AREA */
.dtf-canvas-scroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: auto;
    position: relative;
    max-height: 600px; /* Fixed visible height - canvas scrolls inside */
    background-color: #21262d;  /* Checkerboard bg */
    background-image:
        linear-gradient(45deg, #1a1f27 25%, transparent 25%),
        linear-gradient(-45deg, #1a1f27 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #1a1f27 75%),
        linear-gradient(-45deg, transparent 75%, #1a1f27 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

/* Width Label */
.dtf-width-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    background: var(--dtf-accent-cyan);
    color: #000;
    font-size: 10px;
    font-weight: 800;
    padding: 3px 10px;
    border-radius: 20px;
    z-index: 10;
    letter-spacing: 0.5px;
    pointer-events: none;
}

/* Canvas mount sits inside scroll area */
#dtf-canvas-mount {
    display: block;
    position: relative;
}

/* Empty canvas placeholder */
.dtf-canvas-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--dtf-text-muted);
    font-size: 14px;
    pointer-events: none;
    text-align: center;
}

/* Dimension Indicator */
.dtf-dimension-indicator {
    position: absolute;
    left: 0;
    right: 0;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 5;
}
.dimension-line {
    width: 100%;
    height: 1px;
    background: var(--dtf-accent-pink);
    box-shadow: 0 0 6px var(--dtf-accent-pink);
}
.dimension-text {
    background: var(--dtf-accent-pink);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
    margin-top: -1px;
}

/* ============== TOOLS PANEL ============== */
.panel-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}
.panel-title {
    font-size: 14px;
    font-weight: 700;
    margin: 0;
    color: var(--dtf-text-main);
    letter-spacing: 1px;
}
.panel-hint {
    font-size: 11px;
    color: var(--dtf-text-muted);
}
.tool-hint {
    font-size: 11px;
    color: var(--dtf-text-muted);
    margin: 0 0 14px 0;
    line-height: 1.5;
}
.tool-group { margin-bottom: 14px; }

/* Toggle row */
.tool-row-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.btn-toggle {
    background: #21262d;
    border: 1px solid var(--dtf-border);
    color: var(--dtf-text-main);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}
.btn-toggle:hover { background: #2d333b; }
.btn-toggle.active { border-color: var(--dtf-accent-pink); color: var(--dtf-accent-pink); }
.dot-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dtf-accent-pink);
    display: inline-block;
}
.btn-secondary-sm {
    background: #21262d;
    border: 1px solid var(--dtf-border);
    color: var(--dtf-text-muted);
    padding: 8px 6px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}
.btn-secondary-sm:hover:not(:disabled) { background: #2d333b; color: var(--dtf-text-main); }
.btn-secondary-sm:disabled { opacity: 0.4; cursor: not-allowed; }

/* Dimensions */
.dimension-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 10px;
}
.input-pair { margin-bottom: 0; }
.input-pair label {
    display: block;
    font-size: 10px;
    color: var(--dtf-text-muted);
    margin-bottom: 5px;
    font-weight: 700;
    letter-spacing: 0.3px;
}
.input-with-unit {
    position: relative;
    display: flex;
    align-items: center;
    background: #0d1117;
    border: 1px solid var(--dtf-border);
    border-radius: 6px;
    overflow: hidden;
}
.input-with-unit input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--dtf-text-main);
    padding: 8px 8px 8px 12px;
    font-size: 13px;
    font-family: inherit;
    outline: none;
    min-width: 0;
}
.input-with-unit span {
    background: #21262d;
    border-left: 1px solid var(--dtf-border);
    padding: 8px 10px;
    font-size: 11px;
    color: var(--dtf-text-muted);
    font-weight: 600;
    white-space: nowrap;
}
.input-with-unit input:focus { border-color: var(--dtf-accent-cyan); }

/* Lock button */
.btn-lock {
    width: 100%;
    background: #21262d;
    border: 1px solid var(--dtf-border);
    color: var(--dtf-text-muted);
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 14px;
    transition: all 0.2s;
}
.btn-lock.active {
    color: var(--dtf-accent-cyan);
    border-color: var(--dtf-accent-cyan);
    background: rgba(0, 229, 255, 0.06);
}

/* Secondary controls */
.secondary-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.dtf-select-wrapper select,
#dtf-obj-copies {
    width: 100%;
    background: #0d1117;
    border: 1px solid var(--dtf-border);
    color: var(--dtf-text-main);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
    appearance: none;
    cursor: pointer;
}
.dtf-select-wrapper {
    position: relative;
}
.dtf-select-wrapper::after {
    content: '▾';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--dtf-text-muted);
    font-size: 11px;
}

/* Action Buttons Row */
.action-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 6px;
}
.btn-action-sm {
    background: #21262d;
    border: 1px solid var(--dtf-border);
    color: var(--dtf-text-muted);
    padding: 6px 4px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
}
.btn-action-sm:hover:not(:disabled) { background: #2d333b; color: var(--dtf-text-main); }
.btn-action-sm:disabled { opacity: 0.35; cursor: not-allowed; }
.btn-action-sm.btn-action:hover:not(:disabled) { border-color: var(--dtf-accent-cyan); }
.btn-action-sm.btn-danger:hover:not(:disabled) { border-color: var(--dtf-danger); color: var(--dtf-danger); background: rgba(248, 81, 73, 0.08); }

/* Reorder button */
.btn-secondary-full {
    width: 100%;
    background: transparent;
    border: 1px solid var(--dtf-border);
    color: var(--dtf-text-muted);
    padding: 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}
.btn-secondary-full:hover { background: #21262d; color: var(--dtf-text-main); }

/* ============== PRICE LIST ============== */
.price-list-card { padding: 16px 20px; }
.price-list-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--dtf-text-main);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}
.price-list-icon { font-size: 16px; }
.price-list-note {
    background: rgba(0,229,255,0.04);
    border: 1px solid rgba(0,229,255,0.15);
    border-radius: 6px;
    padding: 10px 12px;
    margin-bottom: 14px;
    font-size: 11px;
    color: var(--dtf-text-muted);
    line-height: 1.5;
}
.price-list-note strong { color: #f0e060; }
.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 13px;
    color: var(--dtf-text-main);
}
.price-row:last-child { border-bottom: none; }
.price-row strong { font-weight: 700; }
.price-row small { font-size: 10px; color: var(--dtf-text-muted); font-weight: 400; }

/* ============== STICKY FOOTER ============== */
.dtf-footer-sticky {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(13, 17, 23, 0.96);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--dtf-border);
    padding: 12px 32px;
    z-index: 9999;
    box-shadow: 0 -6px 30px rgba(0,0,0,0.4);
}
.dtf-footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1280px;
    margin: 0 auto;
}
.order-summary { display: flex; align-items: center; gap: 16px; }
.total-price {
    font-size: 26px;
    font-weight: 800;
    color: #fff;
}
.total-stats {
    font-size: 12px;
    color: var(--dtf-text-muted);
}
.total-stats .sep { margin: 0 4px; opacity: 0.35; }
.dtf-btn-primary {
    background: var(--dtf-accent-pink);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 12px 28px;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.25s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(230, 0, 126, 0.3);
}
.dtf-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(230, 0, 126, 0.5);
}

/* ============== RESPONSIVE ============== */
@media (max-width: 900px) {
    .dtf-top-grid { grid-template-columns: 1fr; }
    .dtf-main-layout { flex-direction: column; }
    .dtf-sidebar-section { width: 100%; }
    .dtf-canvas-scroll { max-height: 450px; }
    .dtf-footer-sticky { padding: 10px 16px; }
    .total-price { font-size: 20px; }
    .dtf-btn-primary { padding: 10px 18px; font-size: 12px; }
}