/* =====================================================================
   Stexno — Shared design system  (Dark Editorial · Bento · 3D)
   Loaded by all 7 pages for total visual consistency.
   ===================================================================== */

:root{
  /* palette */
  --bg:#070A11; --bg-2:#0B0F1A; --bg-3:#0F1422;
  --text:#EEF2F8; --muted:#9AA6BC; --faint:#566075;
  --signal:#36DCEF; --signal-2:#1FA9C0; --signal-soft:rgba(54,220,239,0.12);
  --violet:#9B6CFF; --gold:#F5B544; --green:#4FD18B; --red:#F08585;
  /* lines & surfaces */
  --line:rgba(255,255,255,0.08); --line-2:rgba(255,255,255,0.14); --line-3:rgba(255,255,255,0.22);
  --surface:rgba(255,255,255,0.025); --surface-2:rgba(255,255,255,0.05);
  /* radii — editorial / squared (less rounded) */
  --r-xs:5px; --r-sm:8px; --r:12px; --r-lg:16px;
  /* rhythm */
  --maxw:1200px; --gut:40px;
  /* type */
  --display:'Space Grotesk',system-ui,sans-serif;
  --body:'Instrument Sans',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  /* elevation */
  --shadow-1:0 1px 2px rgba(0,0,0,.4),0 18px 40px -28px rgba(0,0,0,.8);
  --shadow-cy:0 12px 30px -14px rgba(54,220,239,.55);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--body);background:var(--bg);color:var(--text);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100dvh}
a{color:inherit;text-decoration:none}
img,svg{display:block}
::selection{background:rgba(54,220,239,0.28);color:#EAFEFF}

/* focus — accessible everywhere */
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,
[tabindex]:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:var(--r-xs)}

/* ---------- background field (fixed) ---------- */
.bgfall{position:fixed;inset:0;z-index:-2;background:
  radial-gradient(900px 600px at 72% 34%, rgba(54,220,239,0.12), transparent 60%),
  radial-gradient(760px 680px at 86% 80%, rgba(155,108,255,0.09), transparent 62%),
  radial-gradient(700px 600px at 14% 92%, rgba(245,181,68,0.045), transparent 60%),
  linear-gradient(180deg,var(--bg),var(--bg-2))}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.035;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ---------- layout ---------- */
.wrap{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}
.wrap-narrow{max-width:820px}
section{position:relative;z-index:1}
.divider{border:0;border-top:1px solid var(--line)}

/* ---------- brand mark ---------- */
.brand{display:inline-flex;align-items:center;gap:11px;font-family:var(--display);font-weight:600;
  font-size:20px;letter-spacing:-0.02em;color:var(--text)}
.mark{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--signal),var(--signal-2));
  position:relative;flex:none;box-shadow:0 0 22px rgba(54,220,239,0.45)}
.mark::after{content:"";position:absolute;left:10px;top:8px;border-left:9px solid var(--bg);
  border-top:6px solid transparent;border-bottom:6px solid transparent}

/* ---------- nav ---------- */
.nav{display:flex;align-items:center;justify-content:space-between;padding:24px 0}
.navlinks{display:flex;align-items:center;gap:30px}
.navlinks a.nl{color:var(--muted);font-size:15px;font-weight:500;transition:color .2s}
.navlinks a.nl:hover{color:var(--text)}
.sitebar{position:sticky;top:0;z-index:50;background:rgba(7,10,17,0.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}

/* ---------- buttons ---------- */
.btn{font-family:var(--body);font-weight:600;font-size:15px;border-radius:var(--r-sm);
  border:1px solid transparent;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  gap:8px;padding:11px 20px;transition:transform .15s,background .2s,border-color .2s,box-shadow .2s;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--signal);color:#04222A;box-shadow:0 1px 0 rgba(255,255,255,.2) inset,var(--shadow-cy)}
.btn-primary:hover{transform:translateY(-1px);background:#4DE6F6;box-shadow:0 1px 0 rgba(255,255,255,.28) inset,0 16px 36px -12px rgba(54,220,239,.75)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:rgba(255,255,255,0.03);color:var(--text);border-color:var(--line-2);backdrop-filter:blur(6px)}
.btn-ghost:hover{border-color:var(--text)}
.btn-lg{font-size:16px;padding:14px 26px}
.btn-block{width:100%}

/* ---------- typography blocks ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;
  font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--signal);margin-bottom:18px}
.eyebrow .d{width:7px;height:7px;border-radius:50%;background:var(--signal);box-shadow:0 0 12px var(--signal);animation:blink 2.2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
h1{font-family:var(--display);font-weight:600;letter-spacing:-0.035em;line-height:1.02}
h2{font-family:var(--display);font-weight:600;font-size:clamp(28px,3.6vw,42px);line-height:1.06;letter-spacing:-0.025em}
h3{font-family:var(--display);font-weight:500}
.sec-lead{font-size:18px;color:var(--muted);max-width:560px;margin-top:16px}
.hl{color:var(--signal)}

/* generic page header (non-landing) */
.phead{padding:64px 0 8px}
.phead.center{text-align:center}
.phead h1{font-size:clamp(34px,4.6vw,52px);margin-bottom:16px}
.phead p{font-size:18px;color:var(--muted);max-width:560px}
.phead.center p{margin-left:auto;margin-right:auto}

/* ---------- bento grid + cards ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.bento .col-2{grid-column:span 2}
.bento .col-3{grid-column:span 3}
.bento .col-4{grid-column:span 4}
.bento .col-6{grid-column:span 6}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px 26px;
  box-shadow:var(--shadow-1);transition:border-color .25s,transform .25s,background .25s,box-shadow .25s}
.card.hover:hover{border-color:rgba(54,220,239,0.4);transform:translateY(-3px);background:var(--surface-2)}
.chip{width:46px;height:46px;border-radius:var(--r-sm);background:var(--signal-soft);
  border:1px solid rgba(54,220,239,0.25);color:var(--signal);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.chip svg{width:22px;height:22px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}

/* numbered steps */
.stepnum{font-family:var(--mono);font-weight:500;font-size:12px;letter-spacing:.1em;color:var(--signal);margin-bottom:14px}

/* feature check lists */
.checks{list-style:none;display:grid;gap:12px}
.checks li{display:flex;gap:11px;align-items:flex-start;font-size:15px}
.checks li svg{width:18px;height:18px;color:var(--signal);flex:none;margin-top:3px}
.checks li b{color:var(--text);font-weight:600}
.checks.muted li{color:var(--muted)}

/* badges */
.badge{font-size:12px;font-weight:600;padding:5px 12px;border-radius:100px;letter-spacing:.02em;display:inline-block}
.badge.trial{background:rgba(245,181,68,0.14);color:var(--gold);border:1px solid rgba(245,181,68,0.3)}
.badge.active{background:rgba(79,209,139,0.14);color:var(--green);border:1px solid rgba(79,209,139,0.3)}

/* pill tag */
.tag{display:inline-block;font-family:var(--mono);font-size:11px;font-weight:500;color:var(--signal);
  text-transform:uppercase;letter-spacing:.08em;background:var(--signal-soft);
  border:1px solid rgba(54,220,239,0.25);padding:5px 12px;border-radius:100px}

/* ---------- pricing plan ---------- */
.plan{background:rgba(54,220,239,0.05);border:1px solid var(--signal);border-radius:var(--r-lg);
  padding:34px 32px;box-shadow:0 1px 2px rgba(0,0,0,.3),0 30px 60px -34px rgba(54,220,239,.4)}
.plan h3{font-size:22px;margin-bottom:4px}
.plan .pdesc{color:var(--muted);font-size:15px;margin-bottom:20px}
.price{display:flex;align-items:baseline;gap:8px;margin-bottom:4px}
.price .amt{font-family:var(--display);font-weight:600;font-size:46px;letter-spacing:-0.02em}
.price .per{font-size:16px;color:var(--faint);font-weight:500}
.price-note{font-size:14px;color:var(--green);margin-bottom:24px}

/* ---------- FAQ ---------- */
details{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;padding:18px 4px;font-family:var(--display);font-weight:500;
  font-size:17px;display:flex;justify-content:space-between;align-items:center;gap:16px;transition:color .2s}
summary::-webkit-details-marker{display:none}
summary:hover{color:var(--signal)}
summary .chev{transition:transform .2s;color:var(--faint);flex:none}
details[open] summary .chev{transform:rotate(180deg);color:var(--signal)}
details p{color:var(--muted);font-size:15px;padding:0 4px 18px}

/* ---------- forms ---------- */
.field{margin-bottom:18px}
label{display:block;font-size:14px;font-weight:500;margin-bottom:7px;color:var(--text)}
.labelrow{display:flex;justify-content:space-between;align-items:center}
.labelrow a{font-size:13px;color:var(--signal)}
.labelrow a:hover{text-decoration:underline}
.inp{position:relative}
input[type=email],input[type=password],input[type=text]{width:100%;background:var(--bg-2);
  border:1px solid var(--line-2);border-radius:var(--r-sm);padding:13px 14px;color:var(--text);
  font-family:var(--body);font-size:15px;box-shadow:0 1px 2px rgba(0,0,0,.25) inset;
  transition:border-color .2s,box-shadow .2s}
input::placeholder{color:var(--faint)}
input:focus{outline:none;border-color:var(--signal);box-shadow:0 0 0 3px var(--signal-soft),0 1px 2px rgba(0,0,0,.25) inset}
.toggle{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:none;
  color:var(--faint);cursor:pointer;padding:6px;display:flex}
.toggle:hover{color:var(--muted)}
.toggle svg{width:18px;height:18px}
.hint{font-size:12px;color:var(--faint);margin-top:6px}
.consent{display:flex;gap:11px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:14px;margin:6px 0 22px;transition:border-color .2s}
.consent:focus-within{border-color:rgba(54,220,239,0.35)}
.consent input{margin-top:3px;width:17px;height:17px;accent-color:var(--signal);flex:none;cursor:pointer}
.consent label{font-size:13px;color:var(--muted);font-weight:400;margin:0;line-height:1.5;cursor:pointer}
.consent a{color:var(--signal)}
.consent a:hover{text-decoration:underline}
.formnote{font-size:13px;color:var(--faint);text-align:center;margin-top:14px}
.alt{text-align:center;font-size:14px;color:var(--muted);margin-top:22px;padding-top:22px;border-top:1px solid var(--line)}
.alt a{color:var(--signal);font-weight:500}
.alt a:hover{text-decoration:underline}
.formmsg{font-size:14px;margin-top:14px;text-align:center;min-height:18px}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);padding:54px 0 40px;margin-top:20px}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.fcol h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin-bottom:16px;font-weight:600}
.fcol a{display:block;color:var(--muted);font-size:15px;margin-bottom:11px;transition:color .2s}
.fcol a:hover{color:var(--text)}
.ftag{color:var(--muted);font-size:14px;max-width:240px;margin-top:14px}
.fbottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);color:var(--faint);font-size:14px}

/* ---------- scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){ :root{--gut:28px} }
@media (max-width:860px){
  .navlinks .nl{display:none}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento .col-2,.bento .col-3,.bento .col-4,.bento .col-6{grid-column:span 2}
  .fgrid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  :root{--gut:20px}
  .bento{grid-template-columns:1fr}
  .bento .col-2,.bento .col-3,.bento .col-4,.bento .col-6{grid-column:span 1}
  .fgrid{grid-template-columns:1fr}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}