/* Vella Quant — site styles. Dark, premium, responsive. */
:root{
  --bg:#060910; --bg-2:#0b1222; --card:#0e1626; --line:#1b2740;
  --fg:#e9eef7; --muted:#8a96aa;
  --teal:#2dd4bf; --indigo:#6366f1; --violet:#a855f7; --emerald:#34d399;
  --grad:linear-gradient(120deg,#2dd4bf,#6366f1,#a855f7);
  --maxw:1140px; --r:16px; --shadow:0 24px 60px -20px rgba(0,0,0,.6);
  --font:"Inter",system-ui,-apple-system,sans-serif;
  --display:"Space Grotesk",var(--font);
  --mono:ui-monospace,"JetBrains Mono","SF Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--fg);font-family:var(--font);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{font-family:var(--display);font-weight:600;line-height:1.1;letter-spacing:-.02em;margin:0}
code{font-family:var(--mono);font-size:.92em}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}
section{position:relative}

/* ambient aurora */
.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.aurora span{position:absolute;width:48vw;height:48vw;border-radius:50%;filter:blur(120px);opacity:.22;animation:drift 26s ease-in-out infinite}
.aurora span:nth-child(1){background:#2dd4bf;top:-12%;left:-8%}
.aurora span:nth-child(2){background:#6366f1;top:18%;right:-12%;animation-delay:-8s}
.aurora span:nth-child(3){background:#a855f7;bottom:-18%;left:24%;animation-delay:-16s}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(4%,6%) scale(1.12)}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5em;padding:.7em 1.25em;border-radius:999px;font-weight:600;font-size:.95rem;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s ease;cursor:pointer;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-grad{background:var(--grad);color:#04130d;box-shadow:0 10px 30px -10px rgba(99,102,241,.6)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--fg)}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-lg{padding:.95em 1.7em;font-size:1.02rem}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:1rem;max-width:var(--maxw);margin:0 auto;padding:.9rem 1.25rem}
.nav::before{content:"";position:absolute;inset:0;backdrop-filter:blur(14px);background:rgba(6,9,16,.55);border-bottom:1px solid var(--line);z-index:-1;opacity:0;transition:opacity .3s}
.nav.scrolled::before{opacity:1}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--display);font-weight:700}
.brand-name{font-size:1.12rem;letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:1.4rem}
.nav-links a:not(.btn){color:var(--muted);font-size:.95rem;font-weight:500}
.nav-links a:not(.btn):hover{color:var(--fg)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{width:24px;height:2px;background:var(--fg);border-radius:2px;transition:.25s}

/* hero */
.hero{max-width:var(--maxw);margin:0 auto;padding:clamp(3rem,7vw,6rem) 1.25rem 4rem;display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center}
.hero-bg{position:absolute;inset:0;z-index:-1;background-size:cover;background-position:center;opacity:.16;mask-image:radial-gradient(80% 70% at 60% 30%,#000,transparent)}
.pill{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem .85rem;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.03);font-size:.85rem;color:var(--muted);font-family:var(--mono)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--emerald);box-shadow:0 0 0 0 rgba(52,211,153,.6);animation:pulse 2.2s infinite}
.dot.off{background:#f87171;animation:none}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(52,211,153,.55)}70%{box-shadow:0 0 0 8px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
.hero h1{font-size:clamp(2.6rem,6vw,4.2rem);margin:1.1rem 0 .8rem;font-weight:700}
.lede{font-size:1.2rem;color:#c4cdda;max-width:34ch}
.lede b{color:var(--fg);font-weight:600}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap;margin:1.8rem 0}
.hero-stats{display:flex;gap:2rem;margin-top:1.5rem;flex-wrap:wrap}
.hero-stats b{display:block;font-family:var(--display);font-size:1.7rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{font-size:.85rem;color:var(--muted)}

/* terminal */
.terminal{background:linear-gradient(180deg,#0c1424,#080d18);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
.term-bar{display:flex;align-items:center;gap:.5rem;padding:.7rem 1rem;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#2a3550}
.term-bar i:nth-child(1){background:#ff5f57}.term-bar i:nth-child(2){background:#febc2e}.term-bar i:nth-child(3){background:#28c840}
.term-bar span{margin-left:.4rem;font-family:var(--mono);font-size:.8rem;color:var(--muted)}
.term-body{margin:0;padding:1.1rem 1.2rem;font-family:var(--mono);font-size:.82rem;line-height:1.7;overflow-x:auto;white-space:pre}
.c-cmd{color:var(--teal)}.c-str{color:#fcd34d}.c-ok{color:var(--emerald)}.c-dim{color:#7c89a0}

/* strip */
.strip{max-width:var(--maxw);margin:0 auto;padding:1.5rem 1.25rem;display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.strip>span{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.12em}
.strip-items{display:flex;gap:2rem;flex-wrap:wrap}
.strip-items em{font-style:normal;font-family:var(--display);font-weight:600;color:#9fb0c8;font-size:1.02rem}

/* sections */
.section{max-width:var(--maxw);margin:0 auto;padding:clamp(4rem,9vw,7rem) 1.25rem}
.section.alt{max-width:none;background:linear-gradient(180deg,transparent,rgba(11,18,34,.6),transparent)}
.section.alt>*{max-width:var(--maxw);margin-left:auto;margin-right:auto}
.head{text-align:center;max-width:42rem;margin:0 auto 3rem}
.kicker{font-family:var(--mono);font-size:.8rem;text-transform:uppercase;letter-spacing:.16em;color:var(--teal);margin:0 0 .8rem}
.head h2{font-size:clamp(2rem,4.5vw,3rem)}
.sub{color:var(--muted);font-size:1.1rem;margin-top:.9rem}

/* product cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem;transition:transform .2s,border-color .2s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-5px);border-color:#2d3c5e}
.card.feat{border-color:rgba(99,102,241,.5);box-shadow:0 0 0 1px rgba(99,102,241,.2),0 20px 50px -24px rgba(99,102,241,.5)}
.card-ic{width:42px;height:42px;border-radius:11px;background:var(--grad);margin-bottom:1rem;position:relative}
.card-ic::after{content:"";position:absolute;inset:9px;border-radius:6px;background:var(--card);opacity:.55}
.card h3{font-size:1.25rem;margin-bottom:.4rem}
.card p{color:var(--muted);font-size:.95rem;min-height:3em}
.endpoint{margin:.9rem 0;padding:.5rem .7rem;background:#080d18;border:1px solid var(--line);border-radius:8px;font-size:.78rem;color:#9fb0c8;overflow-x:auto}
.price{font-family:var(--display);font-weight:600;font-size:1.4rem}
.price span{font-size:.85rem;color:var(--muted);font-weight:400}

/* why */
.why-bg,.intel-bg{position:absolute;inset:0;z-index:-1;background-size:cover;background-position:center;opacity:.1}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.why-item h4{font-size:1.15rem;margin-bottom:.5rem}
.why-item h4::before{content:"";display:block;width:30px;height:3px;border-radius:3px;background:var(--grad);margin-bottom:.8rem}
.why-item p{color:var(--muted);font-size:.96rem}

/* flow */
.flow{display:flex;align-items:stretch;gap:.6rem;flex-wrap:wrap;justify-content:center}
.flow-step{flex:1;min-width:200px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.4rem}
.flow-step span{font-family:var(--mono);color:var(--teal);font-size:.85rem}
.flow-step h4{margin:.4rem 0;font-size:1.1rem}
.flow-step p{color:var(--muted);font-size:.9rem}
.flow-arrow{display:flex;align-items:center;color:#33415f;font-size:1.4rem}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem}
.price-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.7rem;text-align:center;position:relative}
.price-card.pop{border-color:rgba(45,212,191,.5);box-shadow:0 20px 50px -24px rgba(45,212,191,.45)}
.price-card .tag{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--grad);color:#04130d;font-size:.7rem;font-weight:700;padding:.25rem .7rem;border-radius:999px;text-transform:uppercase;letter-spacing:.08em}
.price-card h4{font-size:1.05rem;color:var(--muted);font-weight:500}
.price-card .big{font-family:var(--display);font-size:2.1rem;margin:.5rem 0;font-weight:700}
.price-card .big span{font-size:.8rem;color:var(--muted);font-weight:400}
.price-card p{font-size:.88rem;color:var(--muted)}

/* quickstart */
.qs{max-width:780px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;position:relative}
.qs-tabs{display:flex;border-bottom:1px solid var(--line)}
.qs-tab{flex:0 0 auto;padding:.85rem 1.3rem;background:none;border:0;color:var(--muted);font-family:var(--mono);font-size:.85rem;cursor:pointer;border-bottom:2px solid transparent}
.qs-tab.active{color:var(--fg);border-bottom-color:var(--teal)}
.qs-pane{display:none;margin:0;padding:1.3rem;font-family:var(--mono);font-size:.84rem;line-height:1.7;overflow-x:auto;white-space:pre;color:#cdd6e4}
.qs-pane.active{display:block}
.copy{position:absolute;top:.7rem;right:.7rem;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted);padding:.35rem .7rem;border-radius:7px;font-size:.78rem;cursor:pointer}
.copy:hover{color:var(--fg)}

/* brief card */
.brief-card{max-width:680px;margin:0 auto;background:linear-gradient(180deg,#0d1626,#0a1120);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem;box-shadow:var(--shadow)}
.brief-head{display:flex;align-items:center;gap:.5rem;font-size:.95rem;margin-bottom:.8rem}
.brief-body{font-size:1.05rem;line-height:1.7}
.brief-foot{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--line);font-family:var(--mono);font-size:.85rem;color:var(--muted)}
.brief-foot b{color:#f87171}

/* cta */
.cta{max-width:var(--maxw);margin:2rem auto;padding:1.25rem}
.cta-inner{background:var(--grad);border-radius:24px;padding:clamp(2.5rem,6vw,4.5rem) 1.5rem;text-align:center;color:#06140e;position:relative;overflow:hidden}
.cta-inner h2{font-size:clamp(2.4rem,6vw,4rem);color:#06140e}
.cta-inner p{max-width:38ch;margin:.8rem auto 1.8rem;color:#0a2018;font-weight:500}
.cta-inner code{background:rgba(0,0,0,.18);padding:.1em .4em;border-radius:5px}
.cta-inner .btn-grad{background:#06140e;color:#dffbef}
.cta-inner .btn-ghost{background:rgba(0,0,0,.14);border-color:rgba(0,0,0,.2);color:#06140e}

/* footer */
.footer{max-width:var(--maxw);margin:0 auto;padding:3rem 1.25rem 2rem;border-top:1px solid var(--line)}
.foot-top{display:grid;grid-template-columns:1.4fr 2fr;gap:2rem}
.foot-brand p{color:var(--muted);font-size:.92rem;margin-top:.7rem;max-width:30ch}
.foot-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.foot-cols h5{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:.8rem}
.foot-cols a{display:block;color:#9fb0c8;font-size:.92rem;padding:.2rem 0}
.foot-cols a:hover{color:var(--fg)}
.foot-bottom{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--line);font-size:.82rem;color:var(--muted)}

/* trial modal */
.modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:rgba(3,6,12,.7);backdrop-filter:blur(6px)}
.modal[hidden]{display:none}
.modal-card{position:relative;width:100%;max-width:440px;background:linear-gradient(180deg,#0e1626,#0a1120);border:1px solid var(--line);border-radius:18px;padding:2rem;box-shadow:var(--shadow)}
.modal-card h3{font-size:1.5rem;margin-bottom:.4rem}
.modal-x{position:absolute;top:1rem;right:1.2rem;background:none;border:0;color:var(--muted);font-size:1.6rem;cursor:pointer;line-height:1}
.modal-card input{width:100%;margin:1.2rem 0;padding:.85rem 1rem;background:#080d18;border:1px solid var(--line);border-radius:10px;color:var(--fg);font-size:.95rem}
.modal-card input:focus{outline:none;border-color:var(--teal)}
.modal-key{background:#080d18;border:1px solid var(--line);border-radius:10px;padding:1rem;margin:1rem 0;overflow:auto}
.modal-key code{color:var(--teal);font-size:.82rem;word-break:break-all}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
[data-reveal].in{opacity:1;transform:none}

/* responsive */
@media(max-width:920px){
  .hero{grid-template-columns:1fr;gap:2rem}
  .cards,.why-grid,.price-grid{grid-template-columns:repeat(2,1fr)}
  .foot-top{grid-template-columns:1fr}
}
@media(max-width:680px){
  body{font-size:16px}
  .nav-links{position:fixed;inset:0 0 auto 0;top:0;flex-direction:column;align-items:stretch;gap:0;padding:5rem 1.5rem 2rem;background:rgba(8,12,22,.98);backdrop-filter:blur(16px);transform:translateY(-110%);transition:transform .3s ease;height:100vh}
  .nav-links.open{transform:none}
  .nav-links a:not(.btn){padding:1rem 0;border-bottom:1px solid var(--line);font-size:1.1rem}
  .nav-links .btn{margin-top:1rem;justify-content:center}
  .nav-toggle{display:flex;z-index:60}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .cards,.why-grid,.price-grid,.foot-cols{grid-template-columns:1fr}
  .flow-arrow{transform:rotate(90deg)}
  .hero-stats{gap:1.4rem}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
}