/* ============================================================
   DeepRelay Design System — "Relay" v2
   Dark-first, developer-infrastructure aesthetic.
   ============================================================ */

:root{
  /* Surfaces */
  --bg0:#04060c;
  --bg1:#070b14;
  --bg2:#0b1120;
  --glass:rgba(148,170,220,.045);
  --glass-2:rgba(148,170,220,.08);
  --line:rgba(148,170,220,.11);
  --line-2:rgba(148,170,220,.22);

  /* Ink */
  --txt:#eef3fc;
  --muted:#94a5c6;
  --faint:#5f6f92;

  /* Accent spectrum */
  --cyan:#2ee4ff;
  --cyan-deep:#0ec2e8;
  --violet:#7b6cff;
  --pink:#ff6ac2;
  --green:#3ce8a4;
  --amber:#ffc861;
  --red:#ff7373;

  --grad:linear-gradient(120deg,var(--cyan) 0%,var(--violet) 60%,var(--pink) 120%);
  --grad-soft:linear-gradient(120deg,rgba(46,228,255,.16),rgba(123,108,255,.16));

  --font-display:'Space Grotesk',-apple-system,'Segoe UI',sans-serif;
  --font-body:'Inter',-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,monospace;

  --r-lg:20px; --r-md:14px; --r-sm:10px;
  --shadow-lift:0 20px 60px -18px rgba(0,0,0,.7);
  --ease:cubic-bezier(.22,.9,.28,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg0);
  color:var(--txt);
  font:15.5px/1.65 var(--font-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:rgba(46,228,255,.28)}
a{color:var(--cyan);text-decoration:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* ---- Ambient layers ---------------------------------------- */
.ambient{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden}
.ambient .glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5}
.ambient .g1{width:640px;height:640px;top:-220px;left:-120px;background:radial-gradient(circle,rgba(46,228,255,.14),transparent 65%)}
.ambient .g2{width:720px;height:720px;top:-160px;right:-220px;background:radial-gradient(circle,rgba(123,108,255,.14),transparent 65%)}
.ambient .g3{width:700px;height:700px;bottom:-320px;left:32%;background:radial-gradient(circle,rgba(255,106,194,.07),transparent 65%)}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E")}

/* ---- Layout ------------------------------------------------ */
.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
section{padding:88px 0;position:relative}

/* ---- Nav --------------------------------------------------- */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);
  background:rgba(4,6,12,.66);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:34px;height:66px}
.brand{display:flex;align-items:center;gap:11px;font:700 19px/1 var(--font-display);letter-spacing:-.4px;color:var(--txt)}
.brand svg{display:block}
.brand em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav-links>a{color:var(--muted);font-size:14px;font-weight:500;transition:color .18s}
.nav-links>a:hover{color:var(--txt)}

/* ---- Buttons ----------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:12px;border:1px solid var(--line-2);
  background:var(--glass);color:var(--txt);
  font:600 14.5px var(--font-body);cursor:pointer;
  transition:transform .18s var(--ease),border-color .18s,background .18s,box-shadow .18s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);border-color:var(--line-2);background:var(--glass-2)}
.btn:active{transform:translateY(0)}
.btn-primary{
  background:var(--grad);border:none;color:#031019;font-weight:700;
  box-shadow:0 8px 28px -8px rgba(46,228,255,.45),0 2px 10px -2px rgba(123,108,255,.4);
}
.btn-primary:hover{box-shadow:0 12px 36px -8px rgba(46,228,255,.6),0 4px 14px -2px rgba(123,108,255,.5);background:var(--grad)}
.nav .btn{padding:9px 18px}
a.btn-primary,a.btn-primary:hover{color:#031019}
.btn-ghost{background:transparent}
.btn-danger{color:var(--red);border-color:rgba(255,115,115,.25)}
.btn-danger:hover{background:rgba(255,115,115,.08);border-color:rgba(255,115,115,.4)}

/* ---- Cards / glass ------------------------------------------ */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.035);
  transition:transform .25s var(--ease),border-color .25s,background .25s;
}
.card:hover{border-color:var(--line-2)}
.card-lift:hover{transform:translateY(-3px)}

/* ---- Pills / badges ----------------------------------------- */
.pill{
  display:inline-flex;align-items:center;gap:7px;
  font:600 12.5px var(--font-body);
  padding:5px 13px;border-radius:99px;
  border:1px solid var(--line);background:var(--glass);color:var(--muted);
}
.pill .dot{width:7px;height:7px;border-radius:50%;flex:none}
.pill-accent{color:var(--cyan);border-color:rgba(46,228,255,.35);background:rgba(46,228,255,.07)}

/* ---- Type -------------------------------------------------- */
h1,h2,h3{font-family:var(--font-display);letter-spacing:-.02em}
.h-kicker{
  font:700 12px var(--font-mono);letter-spacing:.18em;text-transform:uppercase;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;margin-bottom:14px;
}
.h-title{font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.12;margin-bottom:12px}
.h-sub{color:var(--muted);font-size:16.5px;max-width:38em;margin-bottom:40px}

/* ---- Tables ------------------------------------------------- */
.tablewrap{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass)}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th,td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
th{font:600 11.5px var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--faint);background:rgba(4,6,12,.5)}
tbody tr{transition:background .15s}
tbody tr:hover{background:rgba(148,170,220,.04)}
tr:last-child td{border-bottom:none}
.mono{font-family:var(--font-mono);font-size:.92em}
.num{font-family:var(--font-mono);white-space:nowrap;font-weight:500}

/* ---- Forms -------------------------------------------------- */
input[type=text],input[type=email],input[type=password],input[type=number],input[type=search],select{
  width:100%;padding:12px 16px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(4,6,12,.55);color:var(--txt);
  font:15px var(--font-body);transition:border-color .18s,box-shadow .18s;
}
input:focus,select:focus{outline:none;border-color:rgba(46,228,255,.55);box-shadow:0 0 0 3px rgba(46,228,255,.12)}
label{font:600 12.5px var(--font-body);color:var(--muted);display:block;margin-bottom:7px}

/* ---- Code blocks -------------------------------------------- */
.codeblock{
  background:linear-gradient(180deg,rgba(10,15,28,.92),rgba(6,9,18,.92));
  border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-lift),inset 0 1px 0 rgba(255,255,255,.04);
}
.codeblock .cb-bar{
  display:flex;align-items:center;gap:8px;padding:11px 16px;
  border-bottom:1px solid var(--line);background:rgba(4,6,12,.4);
}
.cb-bar .lamp{width:10px;height:10px;border-radius:50%;background:#232f4d}
.cb-bar .cb-title{margin-left:6px;font:500 12px var(--font-mono);color:var(--faint)}
.cb-bar .cb-copy{
  margin-left:auto;font:600 11.5px var(--font-mono);color:var(--faint);
  background:none;border:1px solid var(--line);border-radius:7px;padding:4px 11px;cursor:pointer;
  transition:color .15s,border-color .15s;
}
.cb-bar .cb-copy:hover{color:var(--cyan);border-color:rgba(46,228,255,.4)}
.codeblock pre{padding:18px 20px;font:13px/1.75 var(--font-mono);overflow-x:auto;color:#c7d4ef}
/* syntax tints */
.tk-c{color:#54648a}      /* comment */
.tk-s{color:#7ee8a9}      /* string */
.tk-k{color:var(--cyan)}  /* keyword / flag */
.tk-f{color:#c0b3ff}      /* function / model */
.tk-n{color:var(--amber)} /* number */
.tk-p{color:var(--pink)}  /* punctuation-ish accents */

/* ---- Reveal on scroll --------------------------------------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.001s !important;animation-iteration-count:1 !important}
}

/* ---- Footer -------------------------------------------------- */
footer{border-top:1px solid var(--line);padding:52px 0 44px;position:relative}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.foot-grid h4{font:700 12px var(--font-mono);letter-spacing:.15em;text-transform:uppercase;color:var(--faint);margin-bottom:14px}
.foot-grid a{display:block;color:var(--muted);font-size:14px;padding:4px 0;transition:color .15s}
.foot-grid a:hover{color:var(--txt)}
.foot-base{display:flex;gap:16px;align-items:center;margin-top:40px;padding-top:22px;border-top:1px solid var(--line);color:var(--faint);font-size:13px;flex-wrap:wrap}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}

/* ---- Status pills ------------------------------------------- */
.status{font:600 11.5px var(--font-body);padding:4px 11px;border-radius:99px}
.status.success{background:rgba(60,232,164,.13);color:var(--green)}
.status.pending{background:rgba(255,200,97,.13);color:var(--amber)}
.status.failed{background:rgba(255,115,115,.13);color:var(--red)}

/* ---- Toast --------------------------------------------------- */
.toast{
  position:fixed;bottom:26px;left:50%;transform:translate(-50%,16px);
  background:rgba(10,15,28,.95);border:1px solid var(--line-2);border-radius:12px;
  padding:13px 22px;font:500 14px var(--font-body);z-index:100;
  opacity:0;pointer-events:none;transition:opacity .3s,transform .3s var(--ease);
  box-shadow:var(--shadow-lift);max-width:90vw;
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.ok{border-color:rgba(60,232,164,.4)}
.toast.err{border-color:rgba(255,115,115,.4)}