/* ==========================================================================
   BlueHelp AI — design system
   Brand: cyan #00C4FF on ink. Dark, technical, calm.
   ========================================================================== */

:root{
  --cyan:#00C4FF;
  --cyan-dim:#007294;
  --cyan-glow:rgba(0,196,255,.16);
  --ink:#080d12;
  --ink-2:#0d141b;
  --panel:#111a23;
  --panel-2:#16212c;
  --line:#1e2c39;
  --line-2:#27394a;
  --text:#e7eef5;
  --muted:#8ea3b6;
  --dim:#63798c;
  --ok:#37d99b;
  --warn:#ffb454;
  --bad:#ff6b6b;
  --violet:#9b8cff;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --r:14px;
  --max:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--ink);color:var(--text);
  font-family:var(--sans);font-size:16.5px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 500px at 12% -8%, rgba(0,196,255,.10), transparent 60%),
    radial-gradient(700px 460px at 88% 4%, rgba(155,140,255,.07), transparent 62%);
  background-repeat:no-repeat;
}
img{max-width:100%}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
code,kbd,pre{font-family:var(--mono);font-size:.88em}
h1,h2,h3,h4{line-height:1.18;margin:0 0 .5em;letter-spacing:-.02em;font-weight:650}
h1{font-size:clamp(2.1rem,4.6vw,3.5rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.15rem)}
h3{font-size:1.18rem}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}
.mono{font-family:var(--mono)}
.muted{color:var(--muted)}
.dim{color:var(--dim)}
.center{text-align:center}
hr{border:0;border-top:1px solid var(--line);margin:3rem 0}

/* ---------- top nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);background:rgba(8,13,18,.82);
  border-bottom:1px solid var(--line);
}
.nav-in{max-width:var(--max);margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em;color:var(--text);font-size:1.02rem}
.brand:hover{text-decoration:none}
.brand .dot{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--cyan),#0a6b86);color:#04212b;font-weight:800;font-size:.82rem;
  box-shadow:0 0 0 1px rgba(0,196,255,.35),0 6px 22px -8px rgba(0,196,255,.65);
}
.brand small{display:block;font-weight:500;font-size:.68rem;color:var(--dim);letter-spacing:.10em;text-transform:uppercase}
.nav-links{display:flex;gap:22px;margin-left:auto;font-size:.93rem}
.nav-links a{color:var(--muted);padding:6px 2px;border-bottom:2px solid transparent}
.nav-links a:hover{color:var(--text);text-decoration:none}
.nav-links a.on{color:var(--text);border-bottom-color:var(--cyan)}
.nav-cta{
  border:1px solid var(--line-2);border-radius:999px;padding:7px 15px;color:var(--text)!important;
  background:var(--panel);font-size:.88rem
}
.nav-cta:hover{border-color:var(--cyan);text-decoration:none}
@media(max-width:820px){.nav-links{display:none}}

/* ---------- hero ---------- */
.hero{padding:78px 0 34px;position:relative;overflow:hidden}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 60% at 50% 0%,#000 20%,transparent 100%);
}
.hero-in{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
@media(max-width:960px){.hero-in{grid-template-columns:1fr;gap:36px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);border:1px solid rgba(0,196,255,.28);background:rgba(0,196,255,.07);
  padding:5px 12px;border-radius:999px;margin-bottom:20px
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.lede{font-size:1.12rem;color:var(--muted);max-width:56ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{
  display:inline-flex;align-items:center;gap:9px;border-radius:11px;padding:12px 20px;font-weight:600;
  border:1px solid var(--line-2);color:var(--text);background:var(--panel);cursor:pointer;font-size:.95rem;
  transition:transform .15s ease,border-color .15s ease,background .15s ease
}
.btn:hover{text-decoration:none;transform:translateY(-1px);border-color:var(--cyan)}
.btn.primary{background:linear-gradient(150deg,var(--cyan),#00a4d6);color:#032a36;border-color:transparent;box-shadow:0 10px 30px -12px rgba(0,196,255,.7)}
.btn.ghost{background:transparent}
.btn.sm{padding:8px 14px;font-size:.86rem}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- cards & grids ---------- */
.panel{background:linear-gradient(180deg,var(--panel),var(--ink-2));border:1px solid var(--line);border-radius:var(--r)}
.panel-pad{padding:22px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}

.stat{padding:18px 20px}
.stat b{display:block;font-size:1.9rem;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat span{font-size:.82rem;color:var(--dim);text-transform:uppercase;letter-spacing:.09em}
.stat small{display:block;color:var(--muted);font-size:.86rem;margin-top:6px}

/* ---------- sections ---------- */
section{padding:64px 0}
.sec-head{margin-bottom:38px;max-width:70ch}
.sec-head p{color:var(--muted);margin:0}
.kicker{font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin-bottom:12px}

/* ---------- pipeline (animated flow) ---------- */
.pipeline{position:relative;padding:8px 0 4px}
.pipe-row{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;position:relative}
@media(max-width:900px){.pipe-row{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.pipe-row{grid-template-columns:repeat(2,1fr)}}
.pipe-node{position:relative;padding:16px 14px;border-radius:12px;border:1px solid var(--line);background:var(--panel);transition:.35s}
.pipe-node .n{font-family:var(--mono);font-size:.72rem;color:var(--dim)}
.pipe-node h4{margin:6px 0 4px;font-size:.98rem}
.pipe-node p{margin:0;font-size:.83rem;color:var(--muted);line-height:1.45}
.pipe-node.lit{border-color:rgba(0,196,255,.6);background:linear-gradient(180deg,rgba(0,196,255,.12),var(--panel));box-shadow:0 0 0 1px rgba(0,196,255,.2),0 18px 40px -24px rgba(0,196,255,.8)}
.pipe-node.lit .n{color:var(--cyan)}
.pipe-node.human{border-color:rgba(155,140,255,.5)}
.pipe-node.human.lit{background:linear-gradient(180deg,rgba(155,140,255,.14),var(--panel));border-color:rgba(155,140,255,.85);box-shadow:0 18px 40px -24px rgba(155,140,255,.85)}

/* ---------- code ---------- */
.code{
  background:#060b10;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  font-family:var(--mono);font-size:.82rem;line-height:1.6
}
.code .bar{display:flex;align-items:center;gap:8px;padding:9px 14px;border-bottom:1px solid var(--line);background:#0a1219;color:var(--dim);font-size:.76rem}
.code .bar .f{color:var(--muted)}
.code .bar .lights{display:flex;gap:6px;margin-right:6px}
.code .bar .lights i{width:9px;height:9px;border-radius:50%;background:#22303d}
.code pre{margin:0;padding:16px 18px;overflow-x:auto;color:#cfe0ee}
.code .c{color:#5b7186}
.code .k{color:#7fd1ff}
.code .s{color:#9be7a8}
.code .v{color:#ffd580}
.code .p{color:#9b8cff}

/* ---------- chat replay ---------- */
.replay{border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(180deg,#0c141c,#0a1117);overflow:hidden}
.replay-head{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);background:#0a1219;flex-wrap:wrap}
.replay-head .who{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--muted)}
.avatar{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-size:.72rem;font-weight:700}
.avatar.ai{background:linear-gradient(150deg,var(--cyan),#0a6b86);color:#032a36}
.avatar.tech{background:#22303d;color:#cfe0ee}
.replay-head .spacer{margin-left:auto}
.pill{font-size:.72rem;padding:3px 9px;border-radius:999px;border:1px solid var(--line-2);color:var(--muted);white-space:nowrap}
.pill.live{color:var(--cyan);border-color:rgba(0,196,255,.4);background:rgba(0,196,255,.08)}
.pill.ok{color:var(--ok);border-color:rgba(55,217,155,.35);background:rgba(55,217,155,.08)}
.pill.warn{color:var(--warn);border-color:rgba(255,180,84,.35);background:rgba(255,180,84,.08)}
.pill.bad{color:var(--bad);border-color:rgba(255,107,107,.35);background:rgba(255,107,107,.08)}
.pill.violet{color:var(--violet);border-color:rgba(155,140,255,.4);background:rgba(155,140,255,.09)}

.stream{padding:18px 16px;min-height:340px;max-height:560px;overflow-y:auto;display:flex;flex-direction:column;gap:12px;scrollbar-width:thin}
.msg{display:flex;gap:10px;max-width:92%;opacity:0;transform:translateY(6px);animation:in .34s ease forwards}
@keyframes in{to{opacity:1;transform:none}}
.msg.right{margin-left:auto;flex-direction:row-reverse}
.msg .bubble{border-radius:12px;padding:10px 13px;font-size:.92rem;line-height:1.55;border:1px solid var(--line)}
.msg.tech .bubble{background:#18232e;border-color:#243444}
.msg.ai .bubble{background:rgba(0,196,255,.06);border-color:rgba(0,196,255,.22)}
.msg .bubble p:last-child{margin-bottom:0}
.msg .bubble ul{margin:.4em 0 0;padding-left:1.15em}
.msg .bubble li{margin:.15em 0}
.msg .meta{display:block;font-size:.68rem;color:var(--dim);margin-bottom:4px;letter-spacing:.06em;text-transform:uppercase}

.tool{
  align-self:stretch;border:1px solid var(--line);border-radius:11px;background:#070e14;overflow:hidden;
  opacity:0;transform:translateY(6px);animation:in .34s ease forwards
}
.tool .t-head{display:flex;align-items:center;gap:9px;padding:8px 12px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:.78rem;color:var(--muted);background:#0a1219}
.tool .t-head .nm{color:var(--cyan)}
.tool .t-head .tag{margin-left:auto;font-size:.7rem;color:var(--dim)}
.tool .t-body{padding:10px 12px;font-family:var(--mono);font-size:.77rem;line-height:1.55;color:#b9c9d6;white-space:pre-wrap;max-height:280px;overflow:auto}
.tool .t-body .ok{color:var(--ok)}
.tool .t-body .bad{color:var(--bad)}
.tool .t-body .warn{color:var(--warn)}
.tool .t-body .dim{color:var(--dim)}
.tool.bad{border-color:rgba(255,107,107,.35)}
.tool.ok{border-color:rgba(55,217,155,.3)}

.note{
  align-self:center;font-size:.78rem;color:var(--muted);border:1px dashed var(--line-2);
  border-radius:999px;padding:4px 12px;background:#0a1219;
  opacity:0;animation:in .34s ease forwards
}
.typing{display:inline-flex;gap:4px;align-items:center;padding:12px 14px}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--cyan);opacity:.35;animation:blink 1.1s infinite}
.typing i:nth-child(2){animation-delay:.16s}
.typing i:nth-child(3){animation-delay:.32s}
@keyframes blink{0%,100%{opacity:.25;transform:translateY(0)}50%{opacity:1;transform:translateY(-2px)}}

.replay-foot{display:flex;align-items:center;gap:12px;padding:11px 16px;border-top:1px solid var(--line);background:#0a1219}
.progress{flex:1;height:4px;border-radius:999px;background:#182430;overflow:hidden}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--violet));transition:width .4s ease}
.replay-foot .stamp{font-family:var(--mono);font-size:.74rem;color:var(--dim);min-width:64px;text-align:right}

/* ---------- ticket board ---------- */
.board{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:980px){.board{grid-template-columns:repeat(2,1fr)}}
.lane{background:var(--ink-2);border:1px solid var(--line);border-radius:12px;padding:12px;min-height:250px}
.lane h5{margin:0 0 10px;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);display:flex;align-items:center;gap:8px}
.lane h5 b{color:var(--muted);font-variant-numeric:tabular-nums}
.tcard{
  border:1px solid var(--line);border-radius:10px;padding:9px 11px;margin-bottom:9px;background:var(--panel);font-size:.83rem;
  transition:.3s;cursor:default
}
.tcard .ref{font-family:var(--mono);font-size:.72rem;color:var(--dim)}
.tcard .sub{color:var(--text);margin:2px 0 6px;line-height:1.4}
.tcard .tags{display:flex;gap:5px;flex-wrap:wrap}
.tcard .tags span{font-size:.66rem;padding:1px 7px;border-radius:999px;border:1px solid var(--line-2);color:var(--dim)}
.tcard.flash{box-shadow:0 0 0 1px rgba(0,196,255,.5),0 14px 30px -20px rgba(0,196,255,.9);transform:translateX(2px)}
.tcard.auto .tags span.k{color:var(--cyan);border-color:rgba(0,196,255,.35)}
.tcard.code .tags span.k{color:var(--violet);border-color:rgba(155,140,255,.4)}
.tcard.pve .tags span.k{color:var(--ok);border-color:rgba(55,217,155,.35)}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;font-size:.88rem}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);font-weight:600}
td code{background:#0a1219;border:1px solid var(--line);border-radius:5px;padding:1px 6px}
tr:last-child td{border-bottom:0}

/* ---------- steps ---------- */
.steps{counter-reset:s;display:grid;gap:16px}
.step{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:20px;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(180deg,var(--panel),var(--ink-2));transition:.3s}
.step::before{
  counter-increment:s;content:counter(s,decimal-leading-zero);
  font-family:var(--mono);font-size:.95rem;color:var(--cyan);
  border:1px solid rgba(0,196,255,.3);border-radius:10px;background:rgba(0,196,255,.07);
  width:44px;height:34px;display:grid;place-items:center
}
.step h3{margin:0 0 6px}
.step p{margin:0 0 .6em;color:var(--muted);font-size:.95rem}
.step .step-body{min-width:0}
.step:hover{border-color:var(--line-2);transform:translateY(-1px)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:38px 0;margin-top:40px;color:var(--dim);font-size:.86rem}
.foot-in{display:flex;gap:26px;flex-wrap:wrap;align-items:center;justify-content:space-between}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.rv.seen{opacity:1;transform:none}

/* ---------- misc ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
@media(max-width:900px){.split{grid-template-columns:1fr}}
.tag-list{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px;padding:0;list-style:none}
.tag-list li{font-size:.76rem;padding:4px 10px;border-radius:999px;border:1px solid var(--line-2);color:var(--muted)}
.callout{border-left:3px solid var(--cyan);background:rgba(0,196,255,.05);padding:14px 18px;border-radius:0 10px 10px 0;font-size:.93rem;color:var(--muted)}
.callout.violet{border-color:var(--violet);background:rgba(155,140,255,.06)}
.callout.warn{border-color:var(--warn);background:rgba(255,180,84,.06)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:.88rem}
.kv dt{color:var(--dim);font-family:var(--mono);font-size:.8rem;padding-top:2px}
.kv dd{margin:0;color:var(--text)}