/* site.css — Alex Auto. Сцена (графіт) + діагностичний лист (холодний папір). Golos Text для тексту, Unbounded для заголовків. */
:root{
  --stage:#1C222B; --stage-2:#2A323D; --stage-fg:#E7EAE6; --stage-muted:#9AA3AD;
  --paper:#F4F5F2; --paper-2:#EBEDE8; --ink:#171B20; --muted:#5F6873; --rule:#D5D9D6; --rule-2:#BFC5C0;
  --coolant:#0F8B86; --coolant-ink:#0B6C68;
  --ok:#2E8B5A; --warn:#D28B12; --bad:#C23D34;
  --font:"Golos Text",system-ui,sans-serif; --display:"Unbounded","Golos Text",system-ui,sans-serif;
  --panel-w:432px;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3{margin:0;font-family:var(--display);font-weight:600;letter-spacing:-.01em;text-wrap:balance}
p{margin:0}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:4px;z-index:10}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--coolant);outline-offset:2px}

/* ---- layout: header / stage / panel ---- */
.app{height:100dvh;display:grid;grid-template-columns:minmax(0,1fr) var(--panel-w);grid-template-rows:56px minmax(0,1fr);grid-template-areas:"top top" "stage panel"}
.top{grid-area:top;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--rule);background:var(--paper)}
.brand{display:flex;align-items:baseline;gap:10px;color:inherit;text-decoration:none}
.brand-mark{width:14px;height:14px;border-radius:50%;background:var(--stage);box-shadow:inset 0 0 0 4px var(--paper),inset 0 0 0 5px var(--stage);align-self:center}
.brand-name{font-family:var(--display);font-weight:600;font-size:17px}
.brand-tag{color:var(--muted);font-size:14px}
.lang{display:flex;gap:8px;color:var(--muted);font-size:14px}
.lang a{color:var(--muted);text-decoration:none;padding:4px 2px}
.lang a[aria-current="true"]{color:var(--ink);font-weight:600;border-bottom:2px solid var(--ink)}

.stage{grid-area:stage;position:relative;background:radial-gradient(120% 90% at 50% 40%,var(--stage-2),var(--stage) 70%);min-height:320px;overflow:hidden}
.view{position:absolute;inset:0}
.view canvas{display:block;width:100%;height:100%}
.tip{position:absolute;pointer-events:none;display:none;background:var(--paper);color:var(--ink);padding:5px 9px;font-size:13px;border-radius:4px;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.stage-bar{position:absolute;left:0;right:0;bottom:0;padding:14px 20px 16px;display:flex;justify-content:space-between;align-items:flex-end;gap:16px;color:var(--stage-fg);background:linear-gradient(to top,rgba(20,25,32,.85),rgba(20,25,32,0));pointer-events:none}
.stage-title b{display:block;font-family:var(--display);font-weight:500;font-size:15px}
.stage-sub{display:block;color:var(--stage-muted);font-size:13px;margin-top:2px}
.stage-hint{color:var(--stage-muted);font-size:12px;text-align:right;max-width:40%}

.panel{grid-area:panel;border-left:1px solid var(--rule);background:var(--paper);min-height:0;overflow:hidden}
.panel-scroll{height:100%;overflow:auto;padding:28px 28px 24px;display:flex;flex-direction:column;gap:22px}

/* ---- intro / composer ---- */
.intro h1{font-size:30px;line-height:1.15}
.lead{margin-top:10px;color:var(--muted);max-width:38ch}
.composer{display:flex;flex-direction:column;gap:10px}
.composer textarea{width:100%;resize:vertical;min-height:112px;padding:12px 14px;border:1px solid var(--rule-2);border-radius:6px;background:#fff;line-height:1.45}
.composer textarea::placeholder{color:#8A939C}
.composer textarea:focus{border-color:var(--coolant);outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--coolant) 18%,transparent)}
.composer-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.photo-btn{cursor:pointer;color:var(--coolant-ink);font-weight:500;padding:8px 0}
.photo-btn:hover{text-decoration:underline}
.photo-hint{color:var(--muted);font-size:13px;flex:1}
.btn-primary{background:var(--ink);color:#fff;border:0;border-radius:6px;padding:11px 18px;font-weight:600;cursor:pointer}
.btn-primary:hover{background:#000}
.btn-primary:disabled{opacity:.55;cursor:progress}
.btn-ghost{background:transparent;border:1px solid var(--rule-2);border-radius:6px;padding:8px 14px;cursor:pointer;font-weight:500}
.btn-ghost:hover{border-color:var(--ink)}
.previews{display:flex;gap:8px;flex-wrap:wrap}
.previews figure{margin:0;position:relative}
.previews img{width:72px;height:72px;object-fit:cover;border-radius:4px;border:1px solid var(--rule)}
.previews button{position:absolute;top:-6px;right:-6px;width:22px;height:22px;border-radius:50%;border:0;background:var(--ink);color:#fff;font-size:12px;cursor:pointer;line-height:1}
.examples{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center;color:var(--muted);font-size:13px}
.examples button{background:transparent;border:1px solid var(--rule);border-radius:999px;padding:4px 10px;font-size:13px;cursor:pointer;color:var(--ink);text-align:left}
.examples button:hover{border-color:var(--ink)}

/* ---- progress / error ---- */
.progress{display:flex;flex-direction:column;gap:10px;color:var(--muted)}
.progress-line{height:3px;background:var(--paper-2);border-radius:2px;overflow:hidden}
.progress-line span{display:block;height:100%;width:8%;background:var(--coolant);transition:width .4s ease}
.errorbox{border-left:3px solid var(--bad);padding:4px 0 4px 14px;display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.errorbox h2{font-size:16px}
.errorbox p{color:var(--muted);font-size:14px}

/* ---- result: reply, variations, card ---- */
.result{display:flex;flex-direction:column;gap:16px}
.result h2{font-size:14px;font-family:var(--font);font-weight:600;color:var(--muted)}
.reply{border-left:3px solid var(--coolant);padding:2px 0 2px 14px}
.reply p{margin-top:6px}
.vars{display:flex;flex-direction:column;gap:4px}
.var{display:grid;grid-template-columns:4px 1fr auto;gap:0 12px;align-items:center;text-align:left;background:transparent;border:1px solid transparent;border-radius:6px;padding:8px 10px 8px 0;cursor:pointer;position:relative}
.var:hover{background:var(--paper-2)}
.var[aria-selected="true"]{background:#fff;border-color:var(--rule-2)}
.var-bar{width:4px;height:100%;min-height:28px;border-radius:2px;background:var(--rule-2)}
.var[data-sev="ok"] .var-bar{background:var(--ok)}.var[data-sev="warn"] .var-bar{background:var(--warn)}.var[data-sev="bad"] .var-bar{background:var(--bad)}
.var-label{font-weight:500}
.var-sev{display:block;color:var(--muted);font-size:12.5px;font-weight:400}
.var-prob{font-variant-numeric:tabular-nums;color:var(--muted);font-size:13px;min-width:3.2em;text-align:right}
.var-prob i{display:block;height:3px;border-radius:2px;background:var(--rule);margin-top:4px;overflow:hidden}
.var-prob i::after{content:"";display:block;height:100%;width:calc(var(--p,0)*100%);background:currentColor;opacity:.7}
.var.var-ok{margin-top:6px;border-top:1px solid var(--rule);border-radius:0 0 6px 6px}

.card{padding:4px 0 0;display:flex;flex-direction:column;gap:12px}
.card h3{font-size:19px;line-height:1.25;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.pill{font-family:var(--font);font-size:12.5px;font-weight:500;padding:2px 8px;border-radius:999px;color:#fff;white-space:nowrap}
.pill.ok{background:var(--ok)}.pill.warn{background:var(--warn)}.pill.bad{background:var(--bad)}
.card .text{font-size:15px}
.feel{background:var(--paper-2);border-radius:6px;padding:10px 14px;font-size:14.5px}
.feel b{display:block;font-weight:600;color:var(--muted);font-size:13px;margin-bottom:4px}
.checks h4{margin:0 0 6px;font-size:13px;font-weight:600;color:var(--muted)}
.checks ol{margin:0;padding-left:22px;font-size:14.5px;display:flex;flex-direction:column;gap:4px}
.cost{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--rule);padding-top:10px;font-size:14.5px}
.cost b{font-family:var(--display);font-weight:500;font-size:14px;text-align:right}
.parts{color:var(--muted);font-size:13.5px;line-height:1.5}
.parts b{color:var(--ink);font-weight:600}
.sw{display:inline-block;width:10px;height:10px;border-radius:2px;vertical-align:middle;margin-right:4px}
.result-actions{display:flex;gap:8px;flex-wrap:wrap;padding-top:4px}

.demo-caption{color:var(--muted);font-size:13.5px;border-top:1px solid var(--rule);padding-top:14px}
.app:not([data-state="idle"]) .demo-caption{display:none}
.foot{margin-top:auto;color:var(--muted);font-size:12.5px;line-height:1.5;padding-top:8px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:9px 14px;border-radius:6px;font-size:14px;z-index:20}

/* ---- phone / tablet: stage on top, sheet below ---- */
@media (max-width:900px){
  .app{height:auto;min-height:100dvh;grid-template-columns:1fr;grid-template-rows:52px 52dvh auto;grid-template-areas:"top" "stage" "panel"}
  .top{padding:0 16px}
  .brand-tag{display:none}
  .panel{border-left:0;border-top:1px solid var(--rule)}
  .panel-scroll{height:auto;overflow:visible;padding:22px 16px 24px}
  .intro h1{font-size:24px}
  .stage-hint{display:none}
}
@media (prefers-reduced-motion:reduce){.progress-line span{transition:none}}