/* ============================================================
   MESH-TOOL.CSS — v0.15.1
   Shared design language for the Mesh Tools hub + all 4 tools.
   Same layout grammar as pricer.css, color-coded blue (#3b82f6).
   Tool pages load: main.css + pricer.css + mesh-tool.css
   Hub page loads:  main.css + mesh-tool.css
   ============================================================ */

:root{
  --bg:#060606;
  --s1:#0c0c0c;
  --s2:#101010;
  --border:#1c1c1c;
  --border2:#282828;
  --red:#cc2a1f;
  --red-bright:#ff3a2d;
  --orange:#d48a0e;
  --orange-bright:#f5a520;
  --green:#25d366;
  --blue:#3b82f6;
  --blue-lt:#60a5fa;
  --text:#e0e0e0;
  --muted:#999;
  --muted-lt:#999;
  --muted2:#2a2a2a;
}

/* ── Blue accent overrides for the pricer layout grammar ── */
.tool-est .opt.on{background:rgba(59,130,246,.12);border-color:var(--blue);color:var(--text-bright)}
.tool-est .opt:hover{border-color:#3a3a3a}
.tool-est .uz:hover,.tool-est .uz.over{border-color:var(--blue);background:rgba(59,130,246,.05)}
.tool-est .uz-name{color:var(--blue-lt)}
.tool-est .tab.on{color:var(--text-bright);border-bottom-color:var(--blue);background:rgba(59,130,246,.07)}
/* Page-level tab bar (same component pricer.html uses above its .est grid,
   just blue instead of red so mesh-tool pages keep their own accent) */
.mesh-page .tab-bar .tab.on{color:var(--text-bright);border-bottom-color:var(--blue);background:rgba(59,130,246,.07)}
.tool-est input[type=range]{-webkit-appearance:none;appearance:none;height:4px;background:var(--border2);border-radius:2px;outline:none;cursor:pointer}
.tool-est input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:22px;height:22px;border:none;border-radius:0;background:transparent url('../logo-3d.webp') center/contain no-repeat;cursor:pointer;image-rendering:pixelated}
.tool-est input[type=range]::-moz-range-thumb{width:22px;height:22px;border:none;border-radius:0;background:transparent url('../logo-3d.webp') center/contain no-repeat;cursor:pointer}
.mesh-page .dvd-logo img{filter:drop-shadow(0 0 14px rgba(59,130,246,.45))}

/* Tool estimator: settings column fixed like the pricer; details column
   only appears once a model is parsed, viewer takes the space meanwhile */
.tool-est{grid-template-columns:320px 1fr}
.tool-est.has-model{grid-template-columns:320px 1fr 240px}
.tool-est .est-l{min-width:0}
.tool-est .est-mid{min-width:0}
.tool-est .est-r{display:none}
.tool-est.has-model .est-r{display:flex}
.tool-est .est-mid{min-height:480px}
@media(max-width:900px){
  .tool-est,.tool-est.has-model{grid-template-columns:1fr;grid-template-rows:auto 320px auto;height:auto}
  .tool-est .est-mid{min-height:0}
  .tool-est .est-r{border-left:none;border-top:2px solid #161616}
}

/* ── Number / checkbox controls ── */
.ctrl-row{display:flex;gap:8px;align-items:center}
.ctrl-row input[type=number]{width:80px;background:var(--s2);border:1px solid var(--muted2);color:var(--text);padding:6px 8px;font-size:.82rem;font-family:inherit;border-radius:2px;outline:none}
.ctrl-row input[type=number]:focus{border-color:var(--blue)}
.ctrl-row>span{font-size:.72rem;color:var(--muted)}
.ctrl-row input[type=range]{flex:1}
.chk-row{display:flex;align-items:center;gap:8px;font-size:.78rem;color:var(--text);cursor:pointer;user-select:none}
.chk-row input{accent-color:var(--blue);cursor:pointer}
.tool-select{width:100%;background:var(--s2);border:1px solid var(--muted2);color:var(--text);font-size:.82rem;border-radius:2px;padding:9px;outline:none;font-family:inherit}

/* ── Parametric sliders (converter) ── */
.param-slider{display:flex;flex-direction:column;gap:5px;padding:10px 12px;background:var(--s2);border:1px solid var(--muted2);border-radius:2px;font-size:.68rem;color:var(--muted);font-weight:700;margin-bottom:6px}
.param-slider span{display:flex;justify-content:space-between}
.param-slider output{color:var(--blue-lt)}
.param-slider input{cursor:pointer}

/* ── Viewer chrome ── */
.tool-spinner{position:absolute;inset:0;display:none;align-items:center;justify-content:center;background:rgba(var(--bg-rgb),.92);flex-direction:column;gap:12px;z-index:5}
.tool-spinner.show{display:flex}
.tool-spinner .ring{width:26px;height:26px;border:2px solid var(--border2);border-top-color:var(--blue);border-radius:50%;animation:mtspin .65s linear infinite}
@keyframes mtspin{to{transform:rotate(360deg)}}
.tool-spinner p{color:var(--muted-lt);font-size:.78rem}
.tool-spinner .sub{font-size:.68rem;color:var(--muted)}

/* ── Results / stats rows (right panel) ── */
.stat-block{margin-bottom:8px}
.tool-warning{margin-top:6px;padding:8px 10px;background:rgba(212,138,14,.07);border:1px solid rgba(212,138,14,.3);border-radius:2px;font-size:.68rem;color:var(--orange-bright);line-height:1.5;display:none}
.tool-warning.show{display:block}
.tool-progress{height:5px;background:var(--border);border-radius:3px;overflow:hidden;margin-top:6px}
.tool-progress>div{height:100%;width:0;background:var(--blue);transition:width .3s}
#progress-wrap{display:none}
#progress-wrap.show{display:block}

/* ── Diagnostics (repair) ── */
.result-badge{display:inline-block;padding:4px 12px;border-radius:2px;font-size:.72rem;font-weight:700;text-transform:uppercase;margin-bottom:10px}
.result-badge.valid{background:rgba(37,211,102,.12);color:#4ade80}
.result-badge.broken{background:rgba(255,58,45,.12);color:var(--red-bright)}
.result-badge.high-count{background:rgba(59,130,246,.12);color:var(--blue-lt)}
.diag-item{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px solid #161616;font-size:.76rem}
.diag-item:last-child{border-bottom:none}
.diag-check{width:16px;height:16px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.6rem;flex-shrink:0}
.diag-check.pass{background:rgba(37,211,102,.15);color:#4ade80}
.diag-check.fail{background:rgba(255,58,45,.15);color:var(--red-bright)}
.diag-check.warn{background:rgba(212,138,14,.15);color:var(--orange-bright)}
.diag-item .label{color:var(--muted)}
.diag-item .value{color:var(--text);font-weight:600;margin-left:auto;text-align:right}

/* ── Action buttons ── */
.tool-actions{display:flex;flex-direction:column;gap:6px;margin-top:10px}
#file-card{display:none}
#file-card.show{display:flex}
#actions{display:none}
#actions.show{display:flex}
.tool-actions-row{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.btn-exp{padding:10px 12px;font-size:.75rem;font-weight:600;text-align:center;text-decoration:none;cursor:pointer;font-family:inherit;background:var(--s2);border:1px solid var(--border2);color:var(--text-bright);transition:all var(--t-fast);border-radius:2px}
.btn-exp:hover{background:var(--s3);border-color:#3a3a3a}
.btn-send{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:13px;font-size:.85rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;background:transparent;border:2px solid var(--red-bright);color:var(--text-bright);cursor:pointer;transition:all var(--t-fast);font-family:inherit;text-decoration:none;text-align:center;border-radius:2px}
.btn-send:hover{background:rgba(255,58,45,.12)}
.btn-send:disabled{opacity:.35;cursor:not-allowed}
.btn-quiet{padding:9px 12px;font-size:.72rem;font-weight:600;text-align:center;text-decoration:none;cursor:pointer;font-family:inherit;background:transparent;border:1px solid var(--muted2);color:var(--text-bright);transition:all var(--t-fast);border-radius:2px}
.btn-quiet:hover{border-color:var(--muted-lt)}
.btn-quiet:disabled{opacity:.35;cursor:not-allowed}

/* ============================================================
   HUB PAGE (mesh-tools/index.html)
   ============================================================ */
.mesh-hub-page{position:relative;z-index:2;min-height:100vh}
.mesh-hub{max-width:1000px;margin:0 auto;padding:80px 20px 60px}
.hub-head{text-align:center;margin-bottom:36px}
.hub-head h1{font-size:clamp(1.5rem,4vw,2.2rem);font-weight:900;letter-spacing:-.02em;margin-bottom:10px;color:var(--blue-lt)}
.hub-head p{color:var(--muted-lt);font-size:.86rem;max-width:560px;margin:0 auto;line-height:1.65}
.hub-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.tool-card{background:rgba(var(--s1-rgb),.55);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:2px solid var(--border);border-radius:2px;padding:24px;text-decoration:none;transition:all var(--t-med);display:block}
.tool-card:hover{border-color:var(--blue)}
.tool-card h2{font-size:1.05rem;font-weight:800;margin-bottom:6px;color:var(--blue-lt)}
.tool-card p{font-size:.78rem;color:var(--muted-lt);line-height:1.5}
.tool-card .tc-go{display:inline-block;margin-top:10px;font-size:.68rem;font-weight:700;color:var(--muted);letter-spacing:.04em}
.tool-card:hover .tc-go{color:var(--blue-lt)}
@media(max-width:640px){.hub-grid{grid-template-columns:1fr}}

/* ── v0.15.2 ── */
/* Mesh hub: transparent topbar (red back button keeps contrast), opaque footer */
.mesh-hub-page .topbar{background:rgba(var(--bg-rgb),.35);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.mesh-hub-page .shared-footer{position:relative;z-index:2;background:var(--bg)}
.mesh-hub-page .mesh-hub{position:relative;z-index:2}
/* Scaler: taller drop area (the settings column has room) */
.scaler-page .uz{min-height:170px;display:flex;flex-direction:column;align-items:center;justify-content:center}