/* ──────────────────────────────────────────────────────────
   low-poly tools — interactive widgets mounted as React islands
   Every selector is prefixed `.lp-tool-*` to avoid theme collisions.
   All values resolve through the host page's CSS variables, so the
   widgets follow the active theme (dark/light) automatically.
   ────────────────────────────────────────────────────────── */

@keyframes lpToastIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* card layout — 2 columns desktop, 1 column on narrow viewports */
.lp-tool-card {
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 28px;
    color: var(--fg);
    font-family: var(--font-display);
}
.lp-tool-stage-col { min-width: 0; }

.lp-tool-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px;
    gap: 12px;
    flex-wrap: wrap;
}
.lp-tool-title {
    font-size: 12px; font-family: var(--font-mono); color: var(--fg-muted);
    letter-spacing: 0.06em; text-transform: uppercase;
}
.lp-tool-steps { display: flex; gap: 6px; }
.lp-tool-step {
    font-family: var(--font-mono); font-size: 11px;
    padding: 4px 10px;
    background: var(--bg-elev-2); color: var(--fg-muted);
    border-radius: var(--radius-sm);
}
.lp-tool-step.on { background: var(--accent-soft); color: var(--accent); }

/* dropzone */
.lp-tool-dropzone {
    aspect-ratio: 16/10;
    border: 1.5px dashed var(--line-strong);
    border-radius: var(--radius);
    background:
        repeating-linear-gradient(45deg, transparent 0 18px,
            color-mix(in oklab, var(--fg) 1.2%, transparent) 18px 19px);
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background .15s;
    outline: none;
}
.lp-tool-dropzone:hover,
.lp-tool-dropzone.over,
.lp-tool-dropzone:focus-visible {
    border-color: var(--accent);
    background:
        var(--accent-soft),
        repeating-linear-gradient(45deg, transparent 0 18px,
            color-mix(in oklab, var(--fg) 1.2%, transparent) 18px 19px);
}
.lp-tool-dropico { width: 56px; height: 56px; display: grid; place-items: center; color: var(--accent); }
.lp-tool-dropzone h3 { margin: 0; font-size: 19px; font-weight: 500; letter-spacing: -0.01em; color: var(--fg); }
.lp-tool-dropzone p  { margin: 0; color: var(--fg-muted); font-size: 13px; font-family: var(--font-mono); }
.lp-tool-chips { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-top: 6px; }
.lp-tool-chip {
    font-family: var(--font-mono); font-size: 10px;
    padding: 3px 8px; background: var(--bg-elev-2); color: var(--fg-faint);
    border-radius: var(--radius-sm);
    letter-spacing: 0.04em;
}
.lp-tool-error { color: var(--danger); font-family: var(--font-mono); font-size: 12px; margin: 8px 0 0; }

/* 3D stage */
.lp-tool-stage {
    aspect-ratio: 16/10;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
}
.lp-tool-stage--empty { display: grid; place-items: center; color: var(--fg-muted); }

.lp-tool-progress { text-align: center; }
.lp-tool-progress-label {
    font-family: var(--font-mono); font-size: 12px;
    margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.06em;
    color: var(--fg-muted);
}
.lp-tool-progress-bar {
    width: 220px; height: 2px; background: var(--bg-elev-2);
    margin: 0 auto;
}
.lp-tool-progress-bar > div { height: 100%; background: var(--accent); transition: width .15s linear; }

/* mesh switch (top-left of stage) */
.lp-tool-meshswitch {
    position: absolute; top: 12px; left: 12px;
    display: inline-flex; gap: 2px;
    background: color-mix(in oklab, var(--bg) 70%, transparent);
    backdrop-filter: blur(6px);
    padding: 3px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}
.lp-tool-meshbtn {
    background: transparent; border: 0;
    color: var(--fg-muted);
    padding: 5px 11px;
    font-family: var(--font-mono);
    font-size: 11px; font-weight: 600;
    letter-spacing: 0.04em;
    cursor: pointer;
    border-radius: calc(var(--radius-sm) - 2px);
    text-transform: uppercase;
}
.lp-tool-meshbtn.on {
    background: var(--bg);
    color: var(--fg);
    box-shadow: inset 0 0 0 1px var(--line);
}

/* wireframe toggle (top-right of stage) */
.lp-tool-wirebtn {
    position: absolute; top: 12px; right: 12px;
    font-family: var(--font-mono);
    font-size: 11px; font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 5px 10px;
    background: color-mix(in oklab, var(--bg) 70%, transparent);
    color: var(--fg);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    backdrop-filter: blur(6px);
    cursor: pointer;
}
.lp-tool-wirebtn.on {
    background: var(--accent);
    color: var(--accent-fg);
    border-color: var(--accent);
}

/* controls column */
.lp-tool-controls { display: flex; flex-direction: column; }
.lp-tool-controls h4 {
    font-size: 11px; font-family: var(--font-mono); color: var(--fg-muted);
    letter-spacing: 0.06em; text-transform: uppercase;
    margin: 0 0 10px;
}
.lp-tool-block { padding: 14px 0; border-bottom: 1px solid var(--line); }
.lp-tool-block:first-child { padding-top: 0; }
.lp-tool-block:last-of-type { border-bottom: 0; }

/* segmented control (Flat/Smooth) */
.lp-tool-seg {
    display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
    background: var(--bg-elev-2); padding: 4px;
    border-radius: var(--radius-sm);
}
.lp-tool-seg > button {
    border: 0; background: transparent; color: var(--fg-muted);
    font-family: inherit; font-size: 13px; padding: 9px;
    cursor: pointer; border-radius: calc(var(--radius-sm) - 2px);
    transition: background var(--transition), color var(--transition);
}
.lp-tool-seg > button.on { background: var(--bg); color: var(--fg); box-shadow: inset 0 0 0 1px var(--line); }

/* slider row */
.lp-tool-sliderrow {
    display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px;
    font-size: 11px;
}
.lp-tool-sliderval { font-family: var(--font-mono); font-size: 14px; color: var(--accent); }
.lp-tool-block input[type=range] {
    width: 100%; -webkit-appearance: none; appearance: none;
    background: transparent; height: 24px;
}
.lp-tool-block input[type=range]::-webkit-slider-runnable-track {
    height: 4px; background: var(--bg-elev-2); border: 1px solid var(--line);
}
.lp-tool-block input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 16px; height: 16px; background: var(--accent);
    margin-top: -7px; cursor: pointer;
    clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}
.lp-tool-block input[type=range]::-moz-range-track {
    height: 4px; background: var(--bg-elev-2); border: 1px solid var(--line);
}
.lp-tool-block input[type=range]::-moz-range-thumb {
    width: 16px; height: 16px; background: var(--accent); border: 0;
    clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

/* select */
.lp-tool-select {
    width: 100%; appearance: none; -webkit-appearance: none;
    background: var(--bg-elev-2); color: var(--fg);
    border: 1px solid var(--line); padding: 11px 14px;
    font-family: inherit; font-size: 14px;
    border-radius: var(--radius-sm);
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'><path fill='%23999' d='M2 4l4 4 4-4z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 12px center;
    cursor: pointer;
}

/* stats grid */
.lp-tool-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 4px; }
.lp-tool-stat { background: var(--bg-elev-2); padding: 10px 12px; border-radius: var(--radius-sm); }
.lp-tool-stat .k { font-family: var(--font-mono); font-size: 10px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.lp-tool-stat .v { font-family: var(--font-mono); font-size: 15px; color: var(--fg); margin-top: 2px; word-break: break-word; }
.lp-tool-stat .v .win { color: var(--accent); }
.lp-tool-delta { color: var(--fg-muted); font-size: 11px; margin-left: 4px; }

/* CTA + ghost */
.lp-tool-cta {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    width: 100%; margin-top: 14px;
    padding: 14px; font-size: 15px; font-weight: 600;
    background: var(--accent); color: var(--accent-fg);
    border: 0; border-radius: var(--radius);
    cursor: pointer; text-decoration: none;
    position: relative; overflow: hidden;
    font-family: inherit;
    transition: filter var(--transition);
}
.lp-tool-cta:hover { filter: brightness(1.08); }
.lp-tool-cta:disabled { cursor: progress; opacity: .7; }
.lp-tool-rail {
    position: absolute; left: 0; bottom: 0; height: 2px;
    background: rgba(0,0,0,0.4); transition: width .1s linear;
}
.lp-tool-ghost {
    background: transparent; color: var(--fg-muted);
    border: 0; width: 100%; padding: 10px;
    cursor: pointer; margin-top: 6px;
    font-family: var(--font-mono); font-size: 13px;
    transition: color var(--transition);
}
.lp-tool-ghost:hover { color: var(--fg); }

.lp-tool-note {
    font-family: var(--font-mono); font-size: 10px;
    color: var(--fg-muted); text-align: center; margin-top: 10px;
    letter-spacing: 0.04em;
}
.lp-tool-mono   { font-family: var(--font-mono); }
.lp-tool-muted  { color: var(--fg-muted); }

/* report layout (inspect / lod tables) */
.lp-tool-stage--report {
    aspect-ratio: auto;
    padding: 24px;
    background: var(--bg);
    color: var(--fg);
    min-height: 320px;
    overflow: auto;
}

/* secondary CTA (outline) */
.lp-tool-cta--line {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--line-strong);
    margin-top: 0;
}
.lp-tool-cta--line:hover { background: var(--bg-elev-2); filter: none; }

/* lod table */
.lp-tool-lodtable {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 12px;
}
.lp-tool-lodtable th,
.lp-tool-lodtable td {
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid var(--line);
}
.lp-tool-lodtable th {
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 10px;
    font-weight: 500;
}
.lp-tool-status {
    display: inline-block;
    padding: 2px 8px;
    background: var(--bg-elev-2);
    color: var(--fg-muted);
    border-radius: var(--radius-sm);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.lp-tool-status.on { background: var(--accent-soft); color: var(--accent); }

/* viewer stats overlay (bottom-left) */
.lp-tool-statsoverlay {
    position: absolute;
    bottom: 12px;
    left: 12px;
    display: inline-flex;
    gap: 6px;
    align-items: center;
    background: color-mix(in oklab, var(--bg) 70%, transparent);
    backdrop-filter: blur(6px);
    padding: 6px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--fg-muted);
}

@media (max-width: 960px) {
    .lp-tool-card { grid-template-columns: 1fr; padding: 20px; gap: 20px; }
}