/* ─────────────────────────────────────────────────────────────────────────
   FixIt DIY — "Service Bench" identity.
   Subject world: appliance service manuals, model plates, wiring schematics,
   part numbers, multimeter readings. Signature = technical-data typography
   (monospace for every real datum) + a diagnostic-ticket intake + a faint
   blueprint grid. One accent (heat-orange) used with restraint.
   ───────────────────────────────────────────────────────────────────────── */
:root{
  --ink:#15201e; --bg:#e7ebe8; --card:#ffffff; --muted:#5b6a64;
  --line:#d4dad6; --hair:#e2e7e3;
  --brand:#0f6e6a; --brand-dark:#0a4f4c;
  --signal:#df6a1e; --signal-dark:#b9530f;
  --ok:#0a7d49; --ok-bg:#e2f4ea; --warn:#9a6a08; --warn-bg:#fbefd5;
  --gen:#5d6b66; --gen-bg:#e9edea; --info:#1763b6; --info-bg:#e6effb;
  --grid:rgba(15,110,106,.10);
  --shadow:0 1px 2px rgba(21,32,30,.05),0 12px 34px rgba(21,32,30,.08);
  --radius:12px;
  --mono:ui-monospace,"SF Mono","Cascadia Code","Consolas","Liberation Mono",monospace;
  --display:"Rajdhani","Space Grotesk",-apple-system,"Segoe UI",system-ui,sans-serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  font-family:var(--sans);background:var(--bg);color:var(--ink);
  line-height:1.55;-webkit-font-smoothing:antialiased;
}
.wrap{max-width:940px;margin:0 auto;padding:0 20px}

/* small mono label used for every "technical datum" / eyebrow */
.mono,.eyebrow{font-family:var(--mono)}
.eyebrow{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* ── Header: enamel-ink bar, stamped wordmark, heat-orange baseline ── */
.site-header{background:var(--ink);color:#fff;border-bottom:3px solid var(--signal)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none;color:#fff;
  font-family:var(--display);font-weight:700;font-size:1.3rem;letter-spacing:-.01em}
.logo-mark{font-size:1.25rem;filter:grayscale(.1)}
.tagline{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:#9fb2ad}

/* ── Hero: confident display headline over a faint blueprint grid ── */
.hero{position:relative;padding:54px 0 14px;text-align:center;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-30px 0 auto;height:340px;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:30px 30px;
  -webkit-mask:radial-gradient(120% 80% at 50% 0%,#000 35%,transparent 75%);
          mask:radial-gradient(120% 80% at 50% 0%,#000 35%,transparent 75%);
}
.hero > *{position:relative;z-index:1}
.hero h1{font-family:var(--display);font-size:2.45rem;line-height:1.05;margin:0 0 12px;
  letter-spacing:-.025em;font-weight:700;color:var(--ink)}
.hero .sub{color:var(--muted);max-width:600px;margin:0 auto 26px;font-size:1.02rem}

/* ── Intake: a diagnostic ticket ── */
.ask-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:0;text-align:left;overflow:hidden}
.intake-top{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 18px;border-bottom:1px solid var(--hair);background:#fbfcfb}
.intake-eyebrow{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--brand-dark);font-weight:600}
.intake-status{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:6px}
.intake-status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px var(--ok-bg)}
/* AI bot avatar — friendly face on the assistant */
.intake-id{display:flex;align-items:center;gap:9px;min-width:0}
.bot-avatar{flex:none;width:34px;height:34px;border-radius:50%;color:#fff;
  background:linear-gradient(150deg,var(--brand),var(--brand-dark));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 5px 14px rgba(15,110,106,.30),inset 0 1px 0 rgba(255,255,255,.25)}
.bot-avatar svg{width:20px;height:20px;display:block}
.bot-avatar.sm{width:26px;height:26px}
.bot-avatar.sm svg{width:16px;height:16px}
.ask-body{padding:18px}
.ask-card textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:14px;
  font:inherit;font-size:1.05rem;resize:vertical;color:var(--ink);background:#fff}
.ask-card textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,110,106,.14)}
.ask-row{display:grid;grid-template-columns:1fr 1.3fr auto;gap:12px;align-items:end;margin-top:12px}
.ask-row-2{grid-template-columns:1fr 1fr}
.ask-row-model{grid-template-columns:1fr auto}
.model-field{position:relative}

/* the model number IS the key — set it like a stamped plate */
#model{font-family:var(--mono);letter-spacing:.04em;font-size:.98rem;text-transform:uppercase}
#model::placeholder{font-family:var(--mono);text-transform:none;letter-spacing:0;color:#9aa8a2}

.suggest{position:absolute;top:100%;left:0;right:0;z-index:30;background:#fff;border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);margin-top:4px;max-height:280px;overflow-y:auto}
.sug{padding:9px 12px;cursor:pointer;border-bottom:1px solid var(--hair)}
.sug:last-child{border-bottom:none}
.sug:hover,.sug.active{background:#f1f7f6}
.sug-main{display:flex;align-items:center;justify-content:space-between;gap:10px}
.sug-model{font-family:var(--mono);font-weight:600;font-size:.92rem;letter-spacing:.02em}
.sug-sub{font-size:.78rem;color:var(--muted);margin-top:2px}
.tag-have{font-family:var(--mono);background:var(--ok-bg);color:var(--ok);font-size:.66rem;font-weight:700;
  letter-spacing:.04em;text-transform:uppercase;padding:3px 8px;border-radius:5px;white-space:nowrap}
.tag-limited{font-family:var(--mono);background:var(--gen-bg);color:var(--gen);font-size:.66rem;font-weight:700;
  letter-spacing:.04em;text-transform:uppercase;padding:3px 8px;border-radius:5px;white-space:nowrap}

.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:.74rem;font-weight:600;color:var(--muted);letter-spacing:.01em}
.field .opt{font-weight:400}
.field select,.field input{border:1px solid var(--line);border-radius:9px;padding:11px;font:inherit;background:#fff;color:var(--ink)}
.field select:focus,.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,110,106,.14)}

.btn-primary{background:var(--brand);color:#fff;border:none;border-radius:9px;padding:12px 20px;
  font-family:var(--display);font-weight:600;font-size:.96rem;cursor:pointer;white-space:nowrap;
  transition:background .15s,transform .05s}
.btn-primary:hover{background:var(--brand-dark)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:disabled{opacity:.6;cursor:default}

.examples{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;margin:20px 0 8px;color:var(--muted);font-size:.85rem}
.examples > span{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase}
.chip{background:#fff;border:1px solid var(--line);border-radius:7px;padding:7px 13px;font:inherit;
  font-size:.85rem;cursor:pointer;color:var(--ink);transition:all .15s}
.chip:hover{border-color:var(--signal);color:var(--signal-dark);box-shadow:0 1px 0 var(--signal)}

/* ── Results ── */
.results{margin:28px 0 44px;display:flex;flex-direction:column;gap:18px}
.answer-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 24px}
.answer-head{display:flex;align-items:center;gap:11px;margin-bottom:8px;flex-wrap:wrap}
.badge{font-family:var(--mono);background:var(--ink);color:#fff;font-weight:600;font-size:.66rem;
  padding:4px 9px;border-radius:5px;text-transform:uppercase;letter-spacing:.12em}
.answer-head h2{font-family:var(--display);font-size:1.05rem;margin:0;font-weight:600;color:var(--muted)}

/* confidence = a meter readout: mono chip + an LED dot */
.conf-badge{margin-left:auto;font-family:var(--mono);font-size:.72rem;font-weight:600;letter-spacing:.02em;
  padding:5px 11px 5px 9px;border-radius:6px;white-space:nowrap;display:inline-flex;align-items:center;gap:7px}
.conf-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.85}
.conf-exact{background:var(--ok-bg);color:var(--ok)}
.conf-near{background:var(--warn-bg);color:var(--warn)}
.conf-general{background:var(--gen-bg);color:var(--gen)}
.conf-add_model{background:var(--info-bg);color:var(--info)}
@media (max-width:680px){.conf-badge{margin-left:0;margin-top:4px}}

/* ── Conversation thread: technician's notes ── */
#thread{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.msg{max-width:92%;padding:13px 17px;border-radius:12px;line-height:1.58}
.msg-bot{background:#fafbfa;border:1px solid var(--line);align-self:flex-start;border-left:3px solid var(--brand);border-bottom-left-radius:4px}
.msg-user{background:var(--brand);color:#fff;align-self:flex-end;border-bottom-right-radius:4px;font-size:.95rem}
.msg-bot.markdown h2{font-family:var(--display);font-size:1rem;margin:15px 0 7px}
.msg-bot.markdown p:first-child{margin-top:0}
.msg-bot.markdown p:last-child{margin-bottom:0}

.replybar{display:flex;gap:8px;align-items:center;margin-top:18px;flex-wrap:wrap}
.replybar #reply{flex:1;min-width:200px;border:1px solid var(--line);border-radius:10px;padding:12px;font:inherit;background:#fff;color:var(--ink)}
.replybar #reply:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,110,106,.14)}
.btn-ghost{background:transparent;border:1px solid var(--line);border-radius:9px;padding:11px 14px;font:inherit;
  font-size:.85rem;color:var(--muted);cursor:pointer;white-space:nowrap;transition:all .15s}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost:disabled,.btn-primary:disabled{opacity:.55;cursor:default}

/* ── Feedback ── */
.fb-thumbs{display:flex;gap:6px;margin-top:12px}
.fb-thumbs button{background:#fff;border:1px solid var(--line);border-radius:8px;padding:2px 9px;cursor:pointer;font-size:.95rem;line-height:1.4;transition:all .12s}
.fb-thumbs button:hover{border-color:var(--brand)}
.fb-thumbs button.on{background:var(--ok-bg);border-color:var(--ok)}
.thread-fb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:18px;padding-top:15px;border-top:1px solid var(--hair)}
.fb-q{font-family:var(--mono);font-weight:600;color:var(--muted);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase}
.fb-btn{background:#fff;border:1px solid var(--line);border-radius:7px;padding:6px 13px;font:inherit;font-size:.85rem;cursor:pointer;transition:all .12s}
.fb-btn:hover{border-color:var(--brand);color:var(--brand)}
.fb-btn.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.fb-note{flex:1;min-width:180px;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font:inherit;font-size:.85rem}
.fb-thanks{color:var(--brand-dark);font-size:.85rem;font-weight:600}

/* ── Markdown answer ── */
.markdown h2{font-family:var(--display);font-size:1.08rem;margin:20px 0 8px;color:var(--ink);
  padding-bottom:6px;border-bottom:1px solid var(--hair)}
.markdown h2:first-child{margin-top:6px}
.markdown ol,.markdown ul{margin:8px 0;padding-left:22px}
.markdown li{margin:6px 0}
.markdown li::marker{color:var(--brand)}
.markdown p{margin:8px 0}
.markdown strong{color:var(--ink)}
.markdown code{font-family:var(--mono);font-size:.9em;background:var(--gen-bg);padding:1px 5px;border-radius:4px}

.loading{display:flex;gap:6px;padding:10px 0}
.loading span{width:8px;height:8px;border-radius:50%;background:var(--brand);opacity:.4;animation:bounce 1s infinite}
.loading span:nth-child(2){animation-delay:.15s}
.loading span:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,80%,100%{transform:scale(.6);opacity:.3}40%{transform:scale(1);opacity:1}}

/* ── Source blocks ── */
.block{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 24px}
.block h3{font-family:var(--display);margin:0 0 14px;font-size:1.02rem;display:flex;align-items:center;gap:8px}

.img-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.img-grid img,.guide-imgs img{width:100%;height:130px;object-fit:cover;border-radius:8px;border:1px solid var(--line);cursor:zoom-in;background:#fafbfc}
.img-grid figcaption{font-family:var(--mono);font-size:.72rem;letter-spacing:.02em;color:var(--muted);margin-top:5px;text-align:center}

.parts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.part{border:1px solid var(--line);border-radius:10px;padding:13px;text-align:center;display:flex;flex-direction:column;background:#fff}
.part img{width:100%;height:120px;object-fit:contain;margin-bottom:9px}
.part-noimg{height:120px;display:flex;align-items:center;justify-content:center;font-size:2.2rem;background:var(--bg);border-radius:8px;margin-bottom:9px;opacity:.5}
.part .pname{font-size:.85rem;font-weight:600;line-height:1.35;flex:1}
.part .pnum{font-family:var(--mono);font-size:.72rem;color:var(--muted);margin:6px 0 0;letter-spacing:.02em}

/* ── Footer ── */
.site-footer{border-top:1px solid var(--line);padding:26px 0;margin-top:22px}
.site-footer p{color:var(--muted);font-size:.8rem;text-align:center;margin:0;max-width:620px;margin:0 auto}

/* ── Lightbox ── */
.lightbox{position:fixed;inset:0;background:rgba(15,22,20,.9);display:flex;align-items:center;justify-content:center;z-index:50;cursor:zoom-out;padding:30px}
.lightbox img{max-width:100%;max-height:100%;border-radius:8px}

/* ── Motion: subtle, orchestrated. A page-load reveal, then content eases in
      as it arrives. Restrained on purpose — too much motion reads AI-made. ── */
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes riseL{from{opacity:0;transform:translate(-6px,8px)}to{opacity:1;transform:none}}
@keyframes riseR{from{opacity:0;transform:translate(6px,8px)}to{opacity:1;transform:none}}
@keyframes ledpulse{0%,100%{box-shadow:0 0 0 3px var(--ok-bg)}50%{box-shadow:0 0 0 5px rgba(10,125,73,.12)}}
@keyframes blink{0%,100%{opacity:.95}50%{opacity:.55}}

/* page-load sequence — hero, then the intake ticket, then the chips */
.hero h1{animation:rise .5s ease both}
.hero .sub{animation:rise .5s ease .06s both}
.ask-card{animation:rise .55s cubic-bezier(.2,.7,.2,1) .12s both}
.examples{animation:rise .5s ease .2s both}

/* the "Specialist ready" light gently pulses */
.intake-status::before{animation:ledpulse 2.4s ease-in-out infinite}

/* content arriving */
.answer-card{animation:rise .4s ease both}
.block{animation:rise .45s cubic-bezier(.2,.7,.2,1) both}
.conf-badge{animation:rise .4s ease both}
.msg-bot{animation:riseL .4s ease both}
.msg-user{animation:riseR .35s ease both}
/* the bot's status LED blinks while it's still "thinking"/streaming */
.msg-bot.streaming{border-left-color:var(--signal)}
.msg-bot.streaming::after{content:"";display:inline-block;width:7px;height:14px;margin-left:2px;
  background:var(--brand);vertical-align:-2px;animation:blink 1s step-end infinite;border-radius:1px}

/* part cards & diagrams deal in with a small stagger */
.parts-grid .part,.img-grid figure{animation:rise .4s ease both}
.parts-grid .part:nth-child(2),.img-grid figure:nth-child(2){animation-delay:.05s}
.parts-grid .part:nth-child(3),.img-grid figure:nth-child(3){animation-delay:.10s}
.parts-grid .part:nth-child(4),.img-grid figure:nth-child(4){animation-delay:.15s}
.parts-grid .part:nth-child(n+5),.img-grid figure:nth-child(n+5){animation-delay:.2s}

/* micro-interactions */
.btn-primary{transition:background .15s,transform .08s}
.btn-primary:hover{transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.chip:hover{transform:translateY(-1px)}

/* ── Responsive + a11y floor ── */
@media (max-width:680px){
  .ask-row,.ask-row-2,.ask-row-model{grid-template-columns:1fr}
  .hero{padding:38px 0 10px}
  .hero h1{font-size:1.85rem}
}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
}

/* ── Embed mode (?embed=1): chrome-less, for an iframe section on another site.
      Hides our own header/footer and tightens the top so only the chat shows. ── */
body.embed{background:transparent}
body.embed .site-header,
body.embed .site-footer{display:none}
body.embed .hero{padding-top:6px}
body.embed .hero::before{display:none}      /* drop blueprint grid inside a host section */
/* the host page already provides the heading — hide the chat's own hero text */
body.embed .hero h1,
body.embed .hero .sub{display:none}
body.embed .results{margin-top:18px}