/* sparkvm.dev v2 — dark terminal-inspired design system.
   Plain CSS, no build step. Shared by all pages. */
:root{
  --bg:#070b10;
  --bg2:#0a1017;
  --panel:#0d141d;
  --panel2:#101926;
  --line:rgba(130,170,215,.14);
  --line-strong:rgba(130,170,215,.28);
  --ink:#e9eff6;
  --muted:#93a1b5;
  --faint:#5d6b7e;
  --accent:#4d9fff;
  --accent-dim:rgba(77,159,255,.14);
  --green:#3fb950;
  --green-dim:rgba(63,185,80,.13);
  --amber:#d29922;
  --red:#f85149;
  --radius:14px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","Cascadia Code","JetBrains Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.65 var(--font);
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(77,159,255,.35)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
code,kbd{font-family:var(--mono);font-size:.88em;background:rgba(130,170,215,.1);
  padding:2px 7px;border-radius:6px;border:1px solid var(--line)}
pre{font-family:var(--mono);font-size:.86rem;line-height:1.6}

/* ---------- layout ---------- */
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.wrap.narrow{max-width:760px}
section.block{padding:88px 0}
section.block + section.block{border-top:1px solid var(--line)}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);margin:0 0 14px}
h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.08;letter-spacing:-.02em;margin:0 0 18px}
h2{font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.2;letter-spacing:-.01em;margin:0 0 16px}
h3{font-size:1.15rem;margin:0 0 10px}
.lede{font-size:1.18rem;color:var(--muted);max-width:38em;margin:0 0 26px}
.muted{color:var(--muted)}
.small{font-size:.88rem}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;
  background:rgba(7,11,16,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:26px;height:64px}
.brand{font-family:var(--mono);font-weight:700;font-size:1.02rem;color:var(--ink);
  display:flex;align-items:center;gap:9px;margin-right:auto}
.brand:hover{text-decoration:none}
.brand .prompt{color:var(--green)}
.brand .cursor{display:inline-block;width:9px;height:17px;background:var(--green);
  animation:blink 1.1s steps(1) infinite;vertical-align:-3px}
@keyframes blink{50%{opacity:0}}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{color:var(--muted);font-size:.95rem}
.nav-links a.btn{color:#04121f}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-links a.active{color:var(--ink)}
.btn{display:inline-block;background:var(--accent);color:#04121f;font-weight:700;
  padding:12px 26px;border-radius:10px;border:0;cursor:pointer;font-size:1rem}
.btn:hover{background:#6db3ff;text-decoration:none;color:#04121f}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line-strong)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent);background:transparent}
.btn.sm{padding:8px 16px;font-size:.9rem;border-radius:8px}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:8px}
.nav .btn{margin:0}
.menu-toggle{display:none;background:none;border:1px solid var(--line-strong);
  color:var(--ink);border-radius:8px;padding:8px 12px;font-family:var(--mono)}
@media (max-width:860px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;
    background:var(--bg2);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;padding:18px 24px;gap:14px}
  .nav-links.open{display:flex}
  .menu-toggle{display:block}
}

/* ---------- hero ---------- */
.hero{padding:96px 0 72px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(700px 340px at 12% -40px,rgba(77,159,255,.14),transparent 60%),
    radial-gradient(560px 300px at 88% 10%,rgba(63,185,80,.08),transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  position:relative}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr}}
.micro{font-size:.9rem;color:var(--faint);margin-top:14px}
.quiet-link{display:inline-block;margin-top:12px;color:var(--muted);font-size:.95rem}

/* ---------- terminal ---------- */
.term{background:#05090d;border:1px solid var(--line-strong);border-radius:var(--radius);
  box-shadow:0 24px 70px rgba(0,0,0,.55),0 0 0 1px rgba(0,0,0,.4);
  overflow:hidden;font-family:var(--mono);font-size:.83rem;line-height:1.7}
.term-bar{display:flex;align-items:center;gap:8px;padding:11px 15px;
  background:rgba(130,170,215,.06);border-bottom:1px solid var(--line)}
.dot{width:11px;height:11px;border-radius:50%}
.dot.r{background:#f85149}.dot.y{background:#d29922}.dot.g{background:#3fb950}
.term-title{margin-left:8px;color:var(--faint);font-size:.75rem}
.term-body{padding:18px 20px;min-height:340px;white-space:pre-wrap;word-break:break-word}
.term-body .p{color:var(--green)}
.term-body .c{color:var(--faint)}
.term-body .ok{color:var(--green)}
.term-body .dim{color:var(--faint)}
.term-body .hl{color:var(--accent)}
.term-body .warn{color:var(--amber)}
.term-body .gone{color:var(--red)}
.typed-cursor{display:inline-block;width:9px;height:16px;background:var(--green);
  vertical-align:-2px;animation:blink 1s steps(1) infinite}

/* ---------- hero agent-name cycler ---------- */
.agent-cycle{display:inline-block;transition:opacity .35s ease,transform .35s ease}
.agent-cycle.swap{opacity:0;transform:translateY(8px)}

/* ---------- hero chat ---------- */
.chat{border:1px solid var(--line);border-radius:14px;background:var(--bg2);
  overflow:hidden;max-width:540px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.chat-bar{display:flex;align-items:center;gap:10px;padding:12px 16px;
  border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.chat-avatar{width:32px;height:32px;border-radius:50%;flex:none;
  background:linear-gradient(135deg,var(--accent),var(--green));
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;color:#06110b}
.chat-name{font-weight:600}
.chat-status{margin-left:auto;font-size:.78rem;color:var(--green);
  display:flex;align-items:center;gap:6px}
.chat-status i{width:8px;height:8px;border-radius:50%;background:var(--green);
  display:inline-block;animation:blink 2s infinite}
.chat-body{padding:18px 16px;min-height:352px;display:flex;
  flex-direction:column;gap:10px;justify-content:flex-start}
.msg{max-width:84%;padding:10px 14px;border-radius:14px;line-height:1.5;
  font-size:.92rem;opacity:0;transform:translateY(8px);
  transition:opacity .45s ease,transform .45s ease}
.msg.in{opacity:1;transform:none}
.msg.user{align-self:flex-end;background:#1d4ed8;color:#fff;
  border-bottom-right-radius:4px}
.msg.agent{align-self:flex-start;background:rgba(255,255,255,.055);
  border:1px solid var(--line);border-bottom-left-radius:4px}
.chat-day{align-self:center;font-size:.74rem;color:var(--faint);
  background:rgba(255,255,255,.045);padding:4px 14px;border-radius:20px;
  opacity:0;transition:opacity .45s ease}
.chat-day.in{opacity:1}
.typing{align-self:flex-start;display:flex;gap:5px;padding:13px 16px;
  background:rgba(255,255,255,.055);border:1px solid var(--line);
  border-radius:14px;border-bottom-left-radius:4px}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--faint);
  animation:tblink 1.2s infinite}
.typing span:nth-child(2){animation-delay:.2s}
.typing span:nth-child(3){animation-delay:.4s}
@keyframes tblink{0%,60%,100%{opacity:.25}30%{opacity:1}}

/* ---------- launch strip ---------- */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg2);padding:20px 0;font-size:.95rem;color:var(--muted)}
.strip strong{color:var(--ink)}
.strip .pill{display:inline-block;font-family:var(--mono);font-size:.72rem;
  letter-spacing:.08em;text-transform:uppercase;color:var(--amber);
  border:1px solid rgba(210,153,34,.4);border-radius:999px;padding:3px 12px;margin-bottom:10px}

/* ---------- cards / grids ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media (max-width:860px){.grid3,.grid2{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:transform .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.card h3{margin-top:0}
.card .icon{font-size:1.5rem;margin-bottom:12px}
.card p:last-child{margin-bottom:0}

/* ---------- persistence demo ---------- */
.demo{border:1px solid var(--line-strong);border-radius:var(--radius);
  background:var(--panel);overflow:hidden}
.demo-head{display:flex;gap:10px;align-items:center;padding:16px 20px;
  border-bottom:1px solid var(--line);flex-wrap:wrap}
.demo-head .step-label{font-family:var(--mono);font-size:.8rem;color:var(--muted);
  margin-left:auto}
.demo-btn{background:var(--panel2);border:1px solid var(--line-strong);color:var(--ink);
  font-family:var(--mono);font-size:.82rem;padding:9px 16px;border-radius:8px;cursor:pointer}
.demo-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.demo-btn:disabled{opacity:.38;cursor:default}
.demo-btn.primary{background:var(--accent);border-color:var(--accent);color:#04121f;font-weight:700}
.demo-panels{display:grid;grid-template-columns:1fr 1fr}
@media (max-width:760px){.demo-panels{grid-template-columns:1fr}}
.demo-panel{padding:22px;border-top:1px solid var(--line)}
.demo-panel:first-child{border-right:1px solid var(--line)}
@media (max-width:760px){.demo-panel:first-child{border-right:0}}
.demo-panel h4{font-family:var(--mono);font-size:.85rem;margin:0 0 14px;
  display:flex;align-items:center;gap:10px}
.badge{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;
  padding:3px 10px;border-radius:999px;border:1px solid var(--line-strong);color:var(--muted)}
.badge.lost{color:var(--red);border-color:rgba(248,81,73,.45)}
.badge.kept{color:var(--green);border-color:rgba(63,185,80,.45)}
.statebox{font-family:var(--mono);font-size:.8rem;background:#05090d;
  border:1px solid var(--line);border-radius:10px;padding:14px 16px;min-height:170px;
  white-space:pre-wrap;line-height:1.75;transition:border-color .3s}
.statebox .ok{color:var(--green)}
.statebox .gone{color:var(--red);text-decoration:line-through}
.statebox .dim{color:var(--faint)}
.statebox .add{color:var(--accent)}

/* ---------- steps ---------- */
.steps{counter-reset:step;display:grid;gap:0}
.step{display:grid;grid-template-columns:56px 1fr;gap:20px;padding:26px 0;
  border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.step-num{counter-increment:step;width:46px;height:46px;border-radius:12px;
  background:var(--accent-dim);border:1px solid rgba(77,159,255,.35);color:var(--accent);
  font-family:var(--mono);font-weight:700;display:flex;align-items:center;justify-content:center;
  font-size:1.1rem}
.step-num::before{content:counter(step)}

/* ---------- compare tables ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table.cmp{width:100%;border-collapse:collapse;font-size:.95rem;min-width:640px}
table.cmp th,table.cmp td{padding:14px 18px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line)}
table.cmp thead th{background:var(--panel2);font-size:.85rem;letter-spacing:.04em;
  text-transform:uppercase;color:var(--muted);font-family:var(--mono)}
table.cmp tbody tr:last-child th,table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody th{font-weight:600;width:26%}
.yes{color:var(--green);font-weight:700}
.no{color:var(--red);font-weight:700}
.part{color:var(--amber);font-weight:700}
.verified-note{font-family:var(--mono);font-size:.78rem;color:var(--faint);
  border:1px dashed var(--line-strong);border-radius:10px;padding:12px 16px;margin:26px 0}

/* ---------- faq ---------- */
details.faq{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:18px 22px;margin-bottom:12px}
details.faq summary{font-weight:650;cursor:pointer;list-style:none}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::before{content:"+";color:var(--accent);font-family:var(--mono);
  margin-right:12px;font-weight:700}
details.faq[open] summary::before{content:"–"}
details.faq p{margin:12px 0 0;color:var(--muted)}

/* ---------- pricing ---------- */
.tier{border:1px solid var(--line-strong);border-radius:var(--radius);padding:32px;
  background:var(--panel);display:flex;flex-direction:column}
.tier.featured{border-color:rgba(77,159,255,.5);background:linear-gradient(180deg,rgba(77,159,255,.07),var(--panel))}
.tier .price{font-size:2rem;font-weight:800;letter-spacing:-.02em;margin:8px 0 4px}
.tier ul{list-style:none;padding:0;margin:18px 0}
.tier li{padding:7px 0;color:var(--muted);font-size:.95rem}
.tier li::before{content:"✓";color:var(--green);font-weight:700;margin-right:10px}
.tier .btn{margin-top:auto;align-self:flex-start}

/* ---------- docs hub ---------- */
.doc-list{display:grid;gap:12px}
.doc-item{display:flex;gap:16px;align-items:flex-start;background:var(--panel);
  border:1px solid var(--line);border-radius:12px;padding:18px 22px}
.doc-item:hover{border-color:var(--line-strong);text-decoration:none}
.doc-item .arrow{margin-left:auto;color:var(--faint);font-family:var(--mono)}
.doc-item:hover .arrow{color:var(--accent)}
.doc-item h3{margin:0 0 4px;font-size:1.02rem}
.doc-item p{margin:0;color:var(--muted);font-size:.92rem}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:48px 0 60px;color:var(--faint);font-size:.9rem}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
@media (max-width:760px){footer .cols{grid-template-columns:1fr 1fr}}
footer h4{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);margin:0 0 14px;font-family:var(--mono)}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin-bottom:9px}
footer a{color:var(--faint)}
footer a:hover{color:var(--accent)}
footer .fine{border-top:1px solid var(--line);padding-top:22px;display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .brand .cursor,.typed-cursor{animation:none}
}

/* ---------- misc ---------- */
.kicker-list{list-style:none;padding:0;margin:0}
.kicker-list li{padding:14px 0;border-bottom:1px solid var(--line);display:flex;gap:14px}
.kicker-list li:last-child{border-bottom:0}
.kicker-list .k{font-family:var(--mono);color:var(--accent);min-width:120px;font-size:.88rem}
.hero-ctas{margin-top:6px}
.section-cta{margin-top:34px}
.center{text-align:center}
.mt{margin-top:26px}
.vs-head{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.vs-head .vs{font-family:var(--mono);color:var(--faint);font-size:1rem}