/* ============================================================
   BrainBoxx — brainboxx.app
   Mirrors the app: pure black, SF Rounded, monochrome with the
   coral/blue/emerald AI accents. Colour means status; the rest
   is calm greyscale.
   ============================================================ */

:root{
  --bg:#000;
  --card:#111112;
  --card-2:#161618;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --text:#fff;
  --dim:rgba(255,255,255,.58);
  --dimmer:rgba(255,255,255,.34);
  --faint:rgba(255,255,255,.10);

  --claude:#d97857;   /* warm coral */
  --gemini:#4285f5;   /* blue */
  --codex:#0fa380;    /* emerald */
  --working:#4dcc73;  /* green — go */
  --waiting:#fab82e;  /* amber — wants you */
  --live:#4dadf5;     /* blue — live wire */
  --soft:#d1d1d1;     /* ready */

  --round:ui-rounded,"SF Pro Rounded",Nunito,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,monospace;

  --maxw:1120px;
  --pad:clamp(20px,5vw,40px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:clip;max-width:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--round);
  font-weight:600;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
em{font-style:normal;color:#fff}

/* Synapse canvas — behind everything, felt not watched */
#synapse{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.9}
body>*:not(#synapse){position:relative;z-index:1}

/* ---------- brand mark ---------- */
.mark{width:30px;height:30px;color:#fff;display:inline-block;vertical-align:middle}
.mark.sm{width:20px;height:20px}
.mark.lg{width:64px;height:64px}
.wordmark,.app-title,.foot-brand{font-weight:800;letter-spacing:-.01em}
.bx{color:#fff}
.grad{
  background:linear-gradient(100deg,#fff 0%,#fff 40%,var(--claude) 62%,var(--waiting) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px var(--pad);
  transition:background .3s,backdrop-filter .3s,border-color .3s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(0,0,0,.72);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);padding:11px var(--pad);
}
.nav-brand{display:flex;align-items:center;gap:10px;font-size:19px}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px}
.nav-links a{color:var(--dim);transition:color .2s}
.nav-links a:hover{color:#fff}
.nav-cta{
  color:#000 !important;background:#fff;padding:9px 18px;border-radius:100px;
  font-weight:800;font-size:14px;transition:transform .15s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 30px rgba(255,255,255,.18)}
@media(max-width:720px){.nav-links a:not(.nav-cta){display:none}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:100px;font-weight:800;font-size:16px;padding:14px 26px;transition:transform .15s,box-shadow .25s,background .2s;cursor:pointer;border:0}
.btn-primary{background:#fff;color:#000}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 44px rgba(255,255,255,.22)}
.btn-primary.big{padding:16px 30px;font-size:17px}
.btn-ghost{color:var(--dim);background:transparent}
.btn-ghost:hover{color:#fff}
.soon{font-size:11px;font-weight:700;opacity:.5;letter-spacing:.02em;padding-left:4px}

/* ---------- hero ---------- */
main{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.hero{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  min-height:100vh;padding:120px 0 70px;
}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);border:1px solid var(--line);padding:7px 14px;border-radius:100px;margin-bottom:26px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--working);box-shadow:0 0 10px var(--working);animation:pulse 2.2s ease-in-out infinite}
.hero-title{font-size:clamp(48px,8vw,86px);line-height:.98;font-weight:900;letter-spacing:-.03em;margin-bottom:24px}
.hero-sub{font-size:clamp(17px,2.2vw,21px);color:var(--dim);max-width:33em;font-weight:600;line-height:1.55}
.hero-cta{display:flex;gap:14px;margin:34px 0 22px;flex-wrap:wrap}
.hero-meta{display:flex;align-items:center;gap:12px;color:var(--dimmer);font-size:14px;font-weight:700}
.hero-meta .sep{opacity:.5}
@media(max-width:900px){
  .hero{grid-template-columns:1fr;text-align:center;padding-top:104px;gap:20px}
  .hero-copy{display:flex;flex-direction:column;align-items:center;max-width:100%}
  .hero-title,.hero-sub{max-width:100%}
  .hero-cta{justify-content:center;width:100%}
  .hero-meta{flex-wrap:wrap;justify-content:center;row-gap:4px}
}
@media(max-width:440px){
  .nav{padding:14px 18px}
  .nav-cta{padding:8px 14px;font-size:13px}
  .nav-brand{font-size:17px}
  .hero-meta{font-size:12.5px}
}

/* ---------- phone mockup ---------- */
.hero-phone,.sig-phone{display:flex;justify-content:center;perspective:1600px}
.phone{
  width:300px;flex:0 0 auto;border-radius:46px;padding:11px;
  background:linear-gradient(160deg,#2a2a2e,#101012 60%);
  box-shadow:0 40px 120px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.06),inset 0 0 0 2px rgba(255,255,255,.03);
  transform:rotateY(-13deg) rotateX(5deg) rotateZ(1deg);
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
}
.hero-phone .phone:hover,.sig-phone .phone:hover{transform:rotateY(-4deg) rotateX(2deg)}
.phone-screen{position:relative;background:#000;border-radius:36px;overflow:hidden;aspect-ratio:293/620;display:flex;flex-direction:column;font-size:12px}
.phone-screen::before{content:"";position:absolute;top:9px;left:50%;transform:translateX(-50%);width:78px;height:20px;background:#000;border-radius:100px;z-index:5}
.statusbar{display:flex;justify-content:space-between;align-items:center;padding:11px 20px 5px;font-size:11px;font-weight:800}
.sb-right{display:flex;gap:5px;align-items:center}
.sig,.bat{display:inline-block;background:#fff;border-radius:2px}
.sig{width:15px;height:9px;clip-path:polygon(0 100%,20% 100%,20% 60%,45% 60%,45% 30%,70% 30%,70% 8%,100% 8%,100% 100%);opacity:.9}
.bat{width:20px;height:10px;border-radius:2px;position:relative}

/* app chrome inside the phone */
.app-nav{display:flex;align-items:center;justify-content:space-between;padding:6px 16px 12px;font-weight:800}
.app-title{display:flex;align-items:center;gap:5px;font-size:14px}
.app-title .mark{width:15px;height:15px}
.app-nav .ico{width:26px;height:26px;display:grid;place-items:center;background:#161618;border-radius:50%;color:var(--dim);font-size:13px}
.app-body{padding:2px 14px 14px;overflow:hidden;flex:1}
.sec-label{font-size:11px;font-weight:800;color:var(--dim);margin:12px 2px 7px;display:flex;align-items:center;gap:6px}
.sec-label:first-child{margin-top:2px}

/* status glyph — the block cursor from the app */
.glyph{width:7px;height:12px;border-radius:2px;display:inline-block;flex:0 0 auto;vertical-align:middle}
.glyph.green{background:var(--working)}
.glyph.amber{background:var(--waiting)}
.glyph.live{background:var(--live)}
.glyph.soft{background:transparent;border:1.5px solid var(--soft);width:6px}
.glyph.pulse{animation:pulse 1.1s ease-in-out infinite}

.chip{display:flex;align-items:center;gap:8px;background:#111113;border:1px solid var(--line);border-radius:13px;padding:10px 12px;font-weight:700}
.cont{margin-left:auto;font-size:9.5px;font-weight:900;letter-spacing:.03em;color:rgba(255,255,255,.82);background:rgba(255,255,255,.10);padding:3px 8px;border-radius:100px}
.cont.sm{font-size:8.5px;padding:2px 6px}

.mcard{background:#111113;border:1px solid var(--line);border-radius:16px;padding:12px 13px}
.mcard-head{font-weight:800;font-size:13px;margin-bottom:11px}
.online{color:var(--working);font-size:9px;font-weight:900;letter-spacing:.05em;border:1px solid rgba(77,204,115,.4);padding:2px 6px;border-radius:100px;margin-right:6px}
.mcard-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;text-align:center}
.mcard-stats>div{display:flex;flex-direction:column;gap:1px}
.mcard-stats b{font-size:19px;font-weight:900}
.mcard-stats span{font-size:8px;font-weight:800;color:var(--dimmer);letter-spacing:.04em}
.mcard-stats .w b{color:var(--working)}

.bgrid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.bcard{background:#111113;border:1px solid var(--line);border-radius:14px;padding:11px 11px 9px;min-height:74px;display:flex;flex-direction:column;gap:6px}
.bc-top{display:flex;align-items:flex-start;justify-content:space-between}
.bc-name{font-weight:800;font-size:12.5px;margin-top:auto}
.bc-foot{font-size:9px;color:var(--dimmer);font-weight:700;min-height:14px;display:flex;align-items:center}
.pill{font-size:8px;font-weight:900;letter-spacing:.06em;padding:3px 6px;border-radius:100px;color:var(--dim);background:rgba(255,255,255,.07)}
.pill.claude{color:var(--claude);background:rgba(217,120,87,.13)}
.pill.gemini{color:var(--gemini);background:rgba(66,133,245,.14)}
.pill.codex{color:var(--codex);background:rgba(15,163,128,.15)}

/* terminal mockup */
.phone-screen.term{background:#050505}
.term-nav{border-bottom:1px solid var(--line)}
.term-body{flex:1;padding:12px 13px;font-family:var(--mono);font-size:10.5px;line-height:1.7;font-weight:500;overflow:hidden}
.term-body p{white-space:nowrap}
.t-dim{color:var(--dimmer)}
.t-ai{color:rgba(255,255,255,.9)}
.t-ai::first-letter,.t-ai .dotmark{color:var(--claude)}
.t-code{color:var(--gemini)}
.t-tool{color:var(--dim)}
.t-ok{color:var(--working)}
.t-cursor{margin-top:6px}
.blink{animation:blink 1s steps(2) infinite;color:#fff}
.keybar{display:flex;justify-content:space-between;padding:9px 14px;border-top:1px solid var(--line);background:#0b0b0c}
.keybar span{background:#1a1a1c;border-radius:6px;padding:5px 9px;font-family:var(--mono);font-size:10px;color:var(--dim)}

/* ---------- positioning strip ---------- */
.strip{max-width:var(--maxw);margin:20px auto;padding:44px var(--pad);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.strip p{font-size:clamp(20px,3vw,30px);font-weight:800;letter-spacing:-.02em;text-align:center;line-height:1.3;max-width:20em;margin:0 auto;color:var(--dim)}
.strip b{color:#fff}

/* ---------- section scaffolding ---------- */
section{padding:88px 0}
.section-head{max-width:40em;margin:0 auto 52px;text-align:center}
.kicker{font-size:13px;font-weight:900;letter-spacing:.14em;text-transform:uppercase;color:var(--claude);margin-bottom:16px}
.section-head h2,.signature h2,.get h2,.why h2{font-size:clamp(30px,5vw,50px);font-weight:900;letter-spacing:-.03em;line-height:1.05}
.lead{font-size:clamp(16px,2vw,19px);color:var(--dim);font-weight:600;margin-top:18px;line-height:1.55}
.lead.center{margin-left:auto;margin-right:auto;max-width:34em}
.arrow{color:var(--dimmer);font-weight:400;margin:0 4px}

/* ---------- contrast ---------- */
.why{max-width:var(--maxw);margin:0 auto}
.contrast{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:920px;margin:0 auto}
.col{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:32px}
.col.with{background:linear-gradient(165deg,rgba(217,120,87,.08),rgba(255,255,255,.02));border-color:rgba(217,120,87,.25)}
.col-tag{font-size:12px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:var(--dimmer);margin-bottom:20px}
.col-tag.on{color:var(--claude)}
.steps{list-style:none;counter-reset:s}
.steps li{counter-increment:s;padding:9px 0 9px 34px;position:relative;color:var(--dim);font-weight:700;border-bottom:1px solid var(--line)}
.steps li:last-child{border-bottom:0}
.steps li::before{content:counter(s);position:absolute;left:0;top:8px;width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.06);color:var(--dimmer);font-size:11px;font-weight:900;display:grid;place-items:center}
.steps.big li{font-size:clamp(30px,5vw,46px);font-weight:900;letter-spacing:-.03em;color:#fff;padding:6px 0 6px 0;border:0}
.steps.big li::before{display:none}
.with-note{color:var(--dim);font-weight:600;margin-top:18px;font-size:15px;line-height:1.5}
.col.without .steps li:last-child{color:#fff}

/* ---------- how / steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:var(--maxw);margin:0 auto}
.step{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:30px 28px}
.step-n{width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.06);display:grid;place-items:center;font-weight:900;font-size:17px;margin-bottom:18px}
.step h3,.feature h3{font-size:20px;font-weight:800;letter-spacing:-.01em;margin-bottom:10px}
.step p,.feature p{color:var(--dim);font-weight:600;font-size:15px;line-height:1.55}
.code{background:#0b0b0c;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-family:var(--mono);font-size:12.5px;margin-top:16px;overflow-x:auto}
.code.mini code{white-space:nowrap;color:var(--dim);font-weight:500}
.c-dim{color:var(--dimmer)}.c-em{color:var(--claude)}
.mini-pills{display:flex;gap:8px;margin-top:16px}
.glyph-row{display:flex;align-items:center;gap:7px;margin-top:18px;font-size:13px;color:var(--dim);font-weight:700}
.glyph-row .glyph{margin-left:6px}
.glyph-row .glyph:first-child{margin-left:0}

/* ---------- feature grid ---------- */
.moat{max-width:var(--maxw);margin:0 auto}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:30px 28px;transition:border-color .3s,transform .3s,background .3s}
.feature:hover{border-color:var(--line-2);transform:translateY(-3px);background:var(--card-2)}
.f-ico{font-size:26px;margin-bottom:16px;color:#fff;opacity:.9}

/* ---------- signature ---------- */
.signature{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1fr .8fr;gap:50px;align-items:center}
.signature h2{font-size:clamp(28px,4.4vw,44px)}
.sig-list{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:14px}
.sig-list li{color:var(--dim);font-weight:600;font-size:15.5px;line-height:1.5;display:flex;gap:11px}
.sig-list .tick{color:var(--claude);font-weight:900;flex:0 0 auto}
.sig-list b{color:#fff}
@media(max-width:900px){.signature{grid-template-columns:1fr;gap:36px}}

/* ---------- get ---------- */
.get{max-width:820px;margin:0 auto;text-align:center}
.get .mark.lg{margin-bottom:22px}
.get-steps{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:38px 0 20px;text-align:left}
.get-step{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px}
.gs-num{font-size:12px;font-weight:900;letter-spacing:.06em;color:var(--dim);text-transform:uppercase;margin-bottom:16px}
.get-step .btn-primary{width:100%;justify-content:center}
.code.copyable{width:100%;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);transition:border-color .2s,background .2s;font-size:12px;padding:15px 16px}
.code.copyable:hover{border-color:var(--line-2);background:#0e0e10}
.code.copyable code{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--dim);font-weight:500}
.copy-hint{font-family:var(--round);font-size:12px;font-weight:800;color:var(--dim);background:rgba(255,255,255,.07);padding:4px 10px;border-radius:8px;flex:0 0 auto}
.code.copyable.copied .copy-hint{color:var(--working);background:rgba(77,204,115,.14)}
.fineprint{color:var(--dimmer);font-size:14px;font-weight:600;margin-top:8px}
@media(max-width:640px){.get-steps{grid-template-columns:1fr}}

/* ---------- footer ---------- */
.footer{max-width:var(--maxw);margin:0 auto;padding:56px var(--pad) 60px;border-top:1px solid var(--line);text-align:center}
.foot-brand{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;margin-bottom:14px}
.foot-line{color:var(--dim);font-weight:700;font-size:17px}
.foot-fine{color:var(--dimmer);font-size:13px;margin-top:18px;font-weight:600}
.foot-fine a{color:var(--dim);text-decoration:underline;text-underline-offset:2px}

/* ---------- grid fallbacks ---------- */
@media(max-width:820px){.steps-grid,.feature-grid{grid-template-columns:1fr}.contrast{grid-template-columns:1fr}}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in,.flat .reveal{opacity:1;transform:none}
.flat .hero{min-height:0}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.phone{transform:none !important}}

@keyframes pulse{0%,100%{opacity:1}50%{opacity:.28}}
@keyframes blink{50%{opacity:0}}