/* =====================================================================
   CryptoHelpHub — theme.css
   Direction: "calm in a crisis." A support desk, not a hype-crypto site.
   Signature: the triage answer card (severity chip + TL;DR + steps + sources).
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,600;12..96,700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --paper:#FBFAF7;
  --surface:#FFFFFF;
  --ink:#15181E;
  --muted:#5B6470;
  --faint:#8A929E;
  --line:#E8E4DC;
  --line-soft:#F0EDE7;
  --accent:#0E7C7B;        /* trust teal */
  --accent-ink:#0A5C5B;
  --accent-soft:#E2F1F0;
  --info:#2563EB;  --info-soft:#E8EFFE;
  --warn:#B45309;  --warn-soft:#FBF0E2;
  --crit:#B91C1C;  --crit-soft:#FBE9E9;
  --solved:#15803D;
  --radius:14px; --radius-sm:9px; --radius-lg:22px;
  --shadow:0 1px 2px rgba(20,24,30,.04), 0 8px 24px -12px rgba(20,24,30,.12);
  --shadow-lg:0 24px 60px -24px rgba(20,24,30,.28);
  --maxw:1080px;
  --display:'Bricolage Grotesque',-apple-system,system-ui,sans-serif;
  --body:'Inter',-apple-system,system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}
[data-theme="dark"]{
  --paper:#0E1116; --surface:#161A21; --ink:#EBEEF2; --muted:#9AA3AF;
  --faint:#6B7280; --line:#262C36; --line-soft:#1D232C;
  --accent:#34C3C0; --accent-ink:#8FE3E1; --accent-soft:#13302F;
  --info:#6AA0FF; --info-soft:#15243F; --warn:#E0A050; --warn-soft:#33260F;
  --crit:#F08C8C; --crit-soft:#36181A; --solved:#52C886;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -12px rgba(0,0,0,.5);
  --shadow-lg:0 24px 60px -24px rgba(0,0,0,.7);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--body); font-size:16px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-ink); text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--display); font-weight:600; line-height:1.18; letter-spacing:-.01em; margin:0}
code,kbd,pre{font-family:var(--mono)}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 20px}
.muted{color:var(--muted)}
.small{font-size:13px}
hr{border:none; border-top:1px solid var(--line); margin:24px 0}

/* ---- Header --------------------------------------------------------- */
.site-head{
  position:sticky; top:0; z-index:50;
  background:color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-head .wrap{display:flex; align-items:center; gap:18px; height:62px}
.brand{display:flex; align-items:center; gap:9px; font-family:var(--display);
  font-weight:700; font-size:19px; color:var(--ink); letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand .mark{width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,var(--accent),var(--accent-ink));
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:700}
.nav{display:flex; gap:4px; margin-left:6px}
.nav a{padding:7px 12px; border-radius:8px; color:var(--muted); font-weight:500; font-size:14.5px}
.nav a:hover{background:var(--line-soft); color:var(--ink); text-decoration:none}
.head-right{margin-left:auto; display:flex; align-items:center; gap:10px}

/* ---- Buttons -------------------------------------------------------- */
.btn{display:inline-flex; align-items:center; gap:7px; cursor:pointer;
  font-family:var(--body); font-weight:600; font-size:14.5px;
  padding:9px 15px; border-radius:10px; border:1px solid transparent;
  transition:transform .06s ease, background .15s ease, border-color .15s}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent); color:#fff}
.btn-primary:hover{background:var(--accent-ink); color:#fff}
.btn-ghost{background:transparent; color:var(--ink); border-color:var(--line)}
.btn-ghost:hover{background:var(--line-soft)}
.btn-sm{padding:6px 11px; font-size:13px; border-radius:8px}
.icon-btn{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;color:var(--muted)}
.icon-btn:hover{color:var(--ink);background:var(--line-soft)}

/* ---- Search (hero signature) --------------------------------------- */
.hero{padding:64px 0 40px; text-align:center}
.hero .eyebrow{font-size:13px; font-weight:600; letter-spacing:.06em; text-transform:uppercase;
  color:var(--accent-ink)}
.hero h1{font-size:clamp(30px,5vw,50px); margin:14px 0 10px; letter-spacing:-.025em}
.hero p.lede{font-size:18px; color:var(--muted); max-width:560px; margin:0 auto 28px}
.searchbar{display:flex; align-items:center; gap:8px; max-width:620px; margin:0 auto;
  background:var(--surface); border:1.5px solid var(--line); border-radius:16px;
  padding:8px 8px 8px 16px; box-shadow:var(--shadow); transition:border-color .15s, box-shadow .15s}
.searchbar:focus-within{border-color:var(--accent); box-shadow:0 0 0 4px var(--accent-soft)}
.searchbar svg{flex:none; color:var(--faint)}
.searchbar input{flex:1; border:none; outline:none; background:none; color:var(--ink);
  font-family:var(--body); font-size:16.5px; padding:8px 0}
.searchbar input::placeholder{color:var(--faint)}
.quick{display:flex; gap:8px; flex-wrap:wrap; justify-content:center; margin-top:18px}
.chip{font-size:13px; padding:6px 12px; border-radius:999px; border:1px solid var(--line);
  background:var(--surface); color:var(--muted)}
.chip:hover{border-color:var(--accent); color:var(--accent-ink); text-decoration:none}

/* ---- Category grid -------------------------------------------------- */
.section-head{display:flex; align-items:baseline; justify-content:space-between; margin:0 0 16px}
.section-head h2{font-size:22px}
.cat-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
.cat-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:18px; display:block; transition:transform .1s, border-color .15s, box-shadow .15s}
.cat-card:hover{transform:translateY(-2px); border-color:var(--accent); box-shadow:var(--shadow); text-decoration:none}
.cat-card .ci{width:34px;height:34px;border-radius:9px;background:var(--accent-soft);
  display:grid;place-items:center;color:var(--accent-ink);margin-bottom:12px}
.cat-card h3{font-size:16px;color:var(--ink)}
.cat-card p{font-size:13px;color:var(--muted);margin:4px 0 0}

/* ---- Question list -------------------------------------------------- */
.q-list{display:flex; flex-direction:column; gap:2px}
.q-row{display:flex; gap:14px; padding:16px 14px; border-radius:var(--radius);
  border:1px solid transparent; transition:background .12s, border-color .12s}
.q-row:hover{background:var(--surface); border-color:var(--line); text-decoration:none}
.q-row .sev-dot{flex:none; width:9px; height:9px; border-radius:50%; margin-top:8px}
.q-row .qbody h3{font-size:16.5px; color:var(--ink); margin:0 0 3px}
.q-row .qmeta{font-size:13px; color:var(--faint); display:flex; gap:10px; flex-wrap:wrap}
.q-row .qmeta b{color:var(--muted); font-weight:500}

/* ---- Triage answer card (THE signature) ----------------------------- */
.triage{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  box-shadow:var(--shadow); overflow:hidden; margin:8px 0 22px}
.triage .bar{height:4px}
.triage.sev-info .bar{background:var(--info)}
.triage.sev-warn .bar{background:var(--warn)}
.triage.sev-crit .bar{background:var(--crit)}
.triage .inner{padding:24px 26px}
.sev-chip{display:inline-flex; align-items:center; gap:7px; font-size:12.5px; font-weight:600;
  padding:5px 11px; border-radius:999px; letter-spacing:.01em}
.triage.sev-info .sev-chip{background:var(--info-soft); color:var(--info)}
.triage.sev-warn .sev-chip{background:var(--warn-soft); color:var(--warn)}
.triage.sev-crit .sev-chip{background:var(--crit-soft); color:var(--crit)}
.triage h1{font-size:clamp(24px,3.4vw,33px); margin:14px 0 0; letter-spacing:-.02em}
.tldr{margin-top:14px; padding:14px 16px; border-left:3px solid var(--accent);
  background:var(--accent-soft); border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--ink); font-size:15.5px}
.tldr b{font-weight:600}

/* ---- Article prose -------------------------------------------------- */
.prose{font-size:16.5px; color:var(--ink)}
.prose h2{font-size:21px; margin:30px 0 10px; letter-spacing:-.015em}
.prose h3{font-size:17px; margin:22px 0 8px}
.prose p{margin:0 0 14px}
.prose ul,.prose ol{margin:0 0 16px; padding-left:22px}
.prose li{margin:5px 0}
.prose code{background:var(--line-soft); padding:1px 6px; border-radius:6px; font-size:.88em}
.prose pre{background:#0E1116; color:#E6E8EC; padding:16px; border-radius:var(--radius-sm);
  overflow:auto; font-size:13.5px; line-height:1.5}
.prose pre code{background:none; padding:0; color:inherit}
.prose blockquote{margin:16px 0; padding:13px 16px; background:var(--warn-soft);
  border-left:3px solid var(--warn); border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--ink)}
.prose a{text-decoration:underline; text-underline-offset:2px}

/* ---- Source attribution -------------------------------------------- */
.sources{margin-top:24px; padding-top:18px; border-top:1px solid var(--line)}
.sources h4{font-size:13px; text-transform:uppercase; letter-spacing:.05em; color:var(--faint);
  font-family:var(--body); font-weight:600; margin:0 0 10px}
.src-badge{display:inline-flex; align-items:center; gap:6px; font-size:12.5px;
  padding:5px 10px; border-radius:8px; border:1px solid var(--line); background:var(--surface);
  color:var(--muted); margin:0 6px 6px 0}
.src-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--faint)}

/* ---- Layout columns ------------------------------------------------- */
.cols{display:grid; grid-template-columns:1fr 290px; gap:30px; align-items:start}
.side-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:16px 18px; margin-bottom:16px}
.side-card h4{font-size:14px; margin:0 0 12px}
.side-link{display:flex; justify-content:space-between; padding:7px 0; font-size:14px;
  border-bottom:1px solid var(--line-soft); color:var(--muted)}
.side-link:last-child{border-bottom:none}
.side-link:hover{color:var(--accent-ink); text-decoration:none}
.side-link .ct{font-size:12px; color:var(--faint)}

/* ---- Helpful / votes ------------------------------------------------ */
.helpful{display:flex; align-items:center; gap:12px; margin-top:22px; padding:16px;
  border:1px dashed var(--line); border-radius:var(--radius); font-size:14.5px}
.helpful .btn-ghost.active{background:var(--accent-soft); border-color:var(--accent); color:var(--accent-ink)}

/* ---- Answers / forum ------------------------------------------------ */
.answer{display:flex; gap:16px; padding:20px 0; border-top:1px solid var(--line)}
.vote-col{display:flex; flex-direction:column; align-items:center; gap:4px; flex:none}
.vote-col button{background:none;border:1px solid var(--line);border-radius:8px;width:34px;height:30px;
  cursor:pointer;color:var(--muted);display:grid;place-items:center}
.vote-col button:hover{border-color:var(--accent);color:var(--accent-ink)}
.vote-col .score{font-weight:600;font-size:15px}
.answer.accepted{background:linear-gradient(0deg,var(--accent-soft),transparent 40%);
  border-radius:var(--radius); padding-left:14px}
.badge-accepted{display:inline-flex;gap:5px;align-items:center;color:var(--solved);font-size:12.5px;font-weight:600}
.ans-meta{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;color:var(--faint)}
.avatar{width:24px;height:24px;border-radius:50%;background:var(--accent-soft);color:var(--accent-ink);
  display:grid;place-items:center;font-size:11px;font-weight:600;flex:none}

/* ---- Forms ---------------------------------------------------------- */
.field{margin-bottom:16px}
.field label{display:block; font-size:14px; font-weight:600; margin-bottom:6px}
.input, textarea.input, select.input{width:100%; padding:11px 13px; border:1px solid var(--line);
  border-radius:10px; background:var(--surface); color:var(--ink); font-family:var(--body); font-size:15px}
.input:focus{outline:none; border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft)}
textarea.input{min-height:140px; resize:vertical; line-height:1.6}
.auth-card{max-width:420px; margin:50px auto; background:var(--surface); border:1px solid var(--line);
  border-radius:var(--radius-lg); padding:30px; box-shadow:var(--shadow)}

/* ---- Flash / alerts ------------------------------------------------- */
.flash{padding:12px 16px; border-radius:10px; margin:14px 0; font-size:14.5px}
.flash.info{background:var(--info-soft); color:var(--info)}
.flash.success{background:var(--accent-soft); color:var(--accent-ink)}
.flash.error{background:var(--crit-soft); color:var(--crit)}

/* ---- Tags ----------------------------------------------------------- */
.tag{display:inline-block; font-size:12.5px; padding:3px 9px; border-radius:7px;
  background:var(--accent-soft); color:var(--accent-ink); margin:0 5px 5px 0}
.tag:hover{text-decoration:none; filter:brightness(.97)}

/* ---- Chat widget ---------------------------------------------------- */
.chat-fab{position:fixed; right:22px; bottom:22px; z-index:60; width:56px; height:56px;
  border-radius:50%; background:var(--accent); color:#fff; border:none; cursor:pointer;
  box-shadow:var(--shadow-lg); display:grid; place-items:center}
.chat-fab:hover{background:var(--accent-ink)}
.chat-panel{position:fixed; right:22px; bottom:88px; z-index:60; width:380px; max-width:calc(100vw - 44px);
  height:520px; max-height:calc(100vh - 130px); background:var(--surface); border:1px solid var(--line);
  border-radius:var(--radius-lg); box-shadow:var(--shadow-lg); display:none; flex-direction:column; overflow:hidden}
.chat-panel.open{display:flex}
.chat-head{padding:14px 16px; border-bottom:1px solid var(--line); display:flex; align-items:center; gap:10px}
.chat-head .dot{width:8px;height:8px;border-radius:50%;background:var(--solved)}
.chat-body{flex:1; overflow-y:auto; padding:16px; display:flex; flex-direction:column; gap:12px}
.msg{max-width:86%; padding:10px 13px; border-radius:14px; font-size:14.5px; line-height:1.5}
.msg.user{align-self:flex-end; background:var(--accent); color:#fff; border-bottom-right-radius:4px}
.msg.bot{align-self:flex-start; background:var(--line-soft); color:var(--ink); border-bottom-left-radius:4px}
.msg.bot a{color:var(--accent-ink)}
.chat-foot{padding:12px; border-top:1px solid var(--line); display:flex; gap:8px}
.chat-foot input{flex:1; border:1px solid var(--line); border-radius:10px; padding:10px 12px;
  background:var(--paper); color:var(--ink); font-family:var(--body); font-size:14.5px; outline:none}
.chat-foot input:focus{border-color:var(--accent)}

/* ---- Footer --------------------------------------------------------- */
.site-foot{border-top:1px solid var(--line); margin-top:60px; padding:40px 0; color:var(--muted); font-size:14px}
.site-foot .wrap{display:flex; flex-wrap:wrap; gap:30px; justify-content:space-between}
.site-foot a{color:var(--muted)} .site-foot a:hover{color:var(--ink)}
.foot-col h5{font-family:var(--body);font-size:13px;text-transform:uppercase;letter-spacing:.05em;
  color:var(--faint);margin:0 0 10px}
.foot-col a{display:block;padding:3px 0}
.disclaimer{font-size:12.5px;color:var(--faint);max-width:520px;line-height:1.55}

/* ---- Responsive ----------------------------------------------------- */
@media (max-width:880px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .cols{grid-template-columns:1fr}
  .nav{display:none}
}
@media (max-width:520px){
  .hero{padding:40px 0 28px}
  .triage .inner{padding:20px}
}

/* ---- A11y ----------------------------------------------------------- */
:focus-visible{outline:2px solid var(--accent); outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important; animation:none!important}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}