/* ============================================================
   Packtrail — presentation site
   Palette: ink black · packtrail blue · cool accents
   ============================================================ */
:root{
  --bg:        #090b10;
  --bg-alt:    #0c0e15;
  --panel:     rgba(255,255,255,0.028);
  --panel-2:   rgba(255,255,255,0.05);
  --line:      rgba(255,255,255,0.08);
  --line-2:    rgba(255,255,255,0.14);
  --ink:       #eceef2;
  --ink-soft:  #9ba3b0;
  --ink-faint: #6b7380;

  --sky:       #38bdf8;
  --sky-hi:    #7dd3fc;
  --sky-dim:   rgba(56,189,248,0.12);
  --teal:      #2dd4bf;
  --violet:    #a78bfa;
  --rose:      #fb7185;
  --green:     #4ade80;

  --r-sm: 8px;
  --r:    14px;
  --r-lg: 20px;
  --maxw: 1140px;
  --ease: cubic-bezier(.22,.61,.36,1);

  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --disp: "Space Grotesk", var(--sans);
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{font-family:var(--disp);font-weight:600;letter-spacing:-0.02em;line-height:1.1;margin:0}
code{font-family:var(--mono);font-size:0.9em}
p{margin:0}

.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--sky);
  display:inline-block;
}

/* --------- buttons --------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--disp);font-weight:500;font-size:.95rem;
  padding:.78rem 1.4rem;border-radius:var(--r-sm);
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease), background .2s, border-color .2s, box-shadow .2s;
}
.btn--primary{background:var(--sky);color:#041218;box-shadow:0 8px 30px -10px rgba(56,189,248,.55)}
.btn--primary:hover{background:var(--sky-hi);transform:translateY(-2px)}
.btn--ghost{border-color:var(--line-2);color:var(--ink)}
.btn--ghost:hover{border-color:var(--sky);color:var(--sky);transform:translateY(-2px)}

/* ============================ NAV ============================ */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(140%) blur(12px);
  background:rgba(9,11,16,.75);
  border-bottom:1px solid var(--line);
}
.nav__inner{
  max-width:var(--maxw);margin:0 auto;padding:.85rem 1.5rem;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--disp);font-weight:700;font-size:1.12rem;letter-spacing:-.02em}
.brand__mark{width:24px;height:24px;color:var(--sky)}
.nav__links{display:flex;align-items:center;gap:1.6rem;font-size:.92rem;color:var(--ink-soft)}
.nav__links a{transition:color .2s}
.nav__links a:hover{color:var(--ink)}
.nav__gh{color:var(--sky)!important;font-weight:500}

/* ============================ HERO ============================ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero__grid{
  position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(ellipse 90% 70% at 60% 30%, #000 0%, transparent 75%);
  opacity:.45;
}
.hero__inner{
  position:relative;z-index:1;
  max-width:var(--maxw);margin:0 auto;
  padding:clamp(3.5rem,8vw,6.5rem) 1.5rem clamp(3rem,6vw,5rem);
  display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center;
}
.hero__copy .eyebrow{margin-bottom:1.1rem}
.hero h1{
  font-size:clamp(2.4rem,5.4vw,4rem);
  font-weight:700;letter-spacing:-.035em;line-height:1.02;
  margin-bottom:1.3rem;
}
.hero h1 .hl{
  color:var(--sky);
  background:linear-gradient(180deg,var(--sky-hi),var(--sky));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.lede{font-size:clamp(1.02rem,1.5vw,1.18rem);color:var(--ink-soft);max-width:38ch;margin-bottom:2rem}
.lede strong{color:var(--ink)}
.hero__cta{display:flex;gap:.9rem;flex-wrap:wrap;margin-bottom:2.4rem}
.hero__badges{
  list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.5rem .6rem;
}
.hero__badges li{
  font-family:var(--mono);font-size:.74rem;color:var(--ink-soft);
  padding:.34rem .7rem;border:1px solid var(--line);border-radius:100px;
  background:var(--panel);
}
.hero__badges li::before{content:"▸ ";color:var(--sky)}

.hero__art{display:flex;justify-content:center;align-items:center}
.flowsim{width:100%;max-width:380px;height:auto;filter:drop-shadow(0 20px 50px rgba(0,0,0,.6))}
.fsim__edges path{stroke-dasharray:3 5;animation:flow 20s linear infinite}
@keyframes flow{to{stroke-dashoffset:-200}}
.fsim__nodes circle{fill:#111420;stroke:var(--sky);stroke-width:2}
.fsim__nodes .hub{fill:var(--sky-dim);stroke:var(--sky);stroke-width:2.4}
.fsim__nodes .fan{stroke:var(--teal)}
.fsim__nodes .choice{stroke:var(--violet);fill:#120f1c}
.pulse{fill:var(--sky-hi);filter:drop-shadow(0 0 6px var(--sky))}

/* ============================ SECTIONS ============================ */
.section{max-width:var(--maxw);margin:0 auto;padding:clamp(4rem,8vw,6.5rem) 1.5rem}
.section--alt{
  max-width:none;
  background:
    radial-gradient(ellipse 60% 100% at 50% 0%, rgba(56,189,248,.04), transparent 60%),
    var(--bg-alt);
  border-block:1px solid var(--line);
}
.section--alt > *{max-width:var(--maxw);margin-inline:auto}
.section__head{max-width:60ch;margin-bottom:3rem}
.section__head h2{font-size:clamp(1.7rem,3.4vw,2.5rem);margin:.8rem 0 .7rem}
.section__sub{color:var(--ink-soft);font-size:1.05rem}

/* ============================ CARDS ============================ */
.cards{display:grid;gap:1.1rem}
.cards--4{grid-template-columns:repeat(4,1fr)}
.cards--3{grid-template-columns:repeat(3,1fr)}
.cards--2{grid-template-columns:repeat(2,1fr)}
.card,.feature,.choice-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:1.5rem 1.4rem;transition:border-color .25s, transform .25s var(--ease), background .25s;
}
.card:hover,.feature:hover,.choice-card:hover{border-color:var(--line-2);transform:translateY(-3px);background:var(--panel-2)}
.card__num{font-family:var(--mono);font-size:.8rem;color:var(--sky);margin-bottom:.9rem;letter-spacing:.1em}
.card h3{font-size:1.08rem;margin-bottom:.55rem}
.card p,.feature p,.choice-card p{color:var(--ink-soft);font-size:.93rem}
.feature h3{font-size:1.08rem;display:flex;align-items:center;gap:.6rem;margin-bottom:.6rem}
.feature code,.choice-card code,.card p code,.section__sub code,.api__hint code,.envelope__note code{
  color:var(--sky-hi);background:var(--sky-dim);padding:.05em .4em;border-radius:5px;
}
.feature a{color:var(--sky);text-decoration:underline;text-underline-offset:2px;text-decoration-color:rgba(56,189,248,.35)}

.dot{width:.62rem;height:.62rem;border-radius:50%;display:inline-block;flex:none}
.dot--task{background:var(--sky)}
.dot--fan{background:var(--teal)}
.dot--choice{background:var(--violet)}
.dot--signal{background:var(--rose)}
.dot--native{background:var(--ink-faint)}

/* ============================ ARCHITECTURE ============================ */
.arch{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(180deg, var(--panel), transparent);
  padding:clamp(1.4rem,3vw,2.4rem);margin-bottom:2.4rem;
}
.arch__top{display:grid;grid-template-columns:0.9fr 1.4fr 1.5fr;gap:1rem;align-items:stretch;margin-bottom:1.2rem}
.arch__box,.arch__engine,.arch__reg{
  border-radius:var(--r);padding:1.2rem 1.1rem;display:flex;flex-direction:column;gap:.25rem;justify-content:center;
}
.arch__box{background:var(--panel-2);border:1px solid var(--line)}
.arch__engine{
  background:linear-gradient(160deg, rgba(56,189,248,.16), rgba(56,189,248,.04));
  border:1px solid rgba(56,189,248,.38);
  box-shadow:0 12px 40px -18px rgba(56,189,248,.45);
  align-items:center;text-align:center;
}
.arch__reg{
  border:1px solid var(--line-2);background:var(--panel-2);
  gap:.5rem;
}
.arch__reg-title{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:.1rem}
.arch__inv-list{display:flex;flex-direction:column;gap:.3rem}
.arch__inv{
  font-family:var(--mono);font-size:.76rem;
  padding:.28rem .65rem;border-radius:6px;
  background:var(--panel-2);border:1px solid var(--line);
  color:var(--ink-soft);display:flex;align-items:center;gap:.5rem;
}
.arch__inv .i-dot{width:.45rem;height:.45rem;border-radius:50%;flex:none}
.arch__tag{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint)}
.arch__engine .arch__tag{color:var(--sky)}
.arch__box strong,.arch__engine strong,.arch__reg strong{font-family:var(--disp);font-size:1.1rem}
.arch__box small,.arch__engine small{color:var(--ink-soft);font-size:.82rem}
.arch__engine small{color:rgba(255,255,255,.7)}

.arch__busline{
  text-align:center;position:relative;margin:1.2rem 0;
}
.arch__busline::before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:var(--line-2)}
.arch__busline span{
  position:relative;background:var(--bg);padding:0 1rem;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);
}
.section--alt .arch__busline span{background:var(--bg-alt)}

.arch__stores{display:grid;grid-template-columns:repeat(5,1fr);gap:.7rem}
.store{
  border:1px solid var(--line);border-left-width:3px;border-radius:var(--r-sm);
  padding:.75rem .85rem;background:var(--panel);display:flex;flex-direction:column;gap:.2rem;
}
.store code{font-size:.76rem;color:var(--ink)}
.store span{font-size:.7rem;color:var(--ink-faint)}
.store--truth{border-left-color:var(--sky)}
.store--lease{border-left-color:var(--rose)}
.store--stream{border-left-color:var(--teal)}
.store--timer{border-left-color:var(--violet)}
.store--cache{border-left-color:var(--green)}
.store--proj{border-left-color:var(--ink-faint)}

.choices{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem}
.choice-card h4{font-size:1.05rem;margin-bottom:.5rem;color:var(--sky-hi)}
.choice-card em{color:var(--ink);font-style:normal;font-weight:600}

/* ============================ INVOKER ============================ */
.invoker-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:1.4rem;align-items:start}

.inv-panel{
  border:1px solid var(--line);border-radius:var(--r);background:var(--panel);
  padding:1.4rem;display:flex;flex-direction:column;gap:1rem;
}
.inv-panel__title{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint)}
.inv-flow{display:flex;flex-direction:column;align-items:center;gap:.0rem;width:100%}
.inv-box{
  width:100%;max-width:240px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  padding:.7rem 1rem;text-align:center;background:var(--panel-2);
  font-family:var(--disp);font-size:.9rem;font-weight:600;
}
.inv-box--engine{
  border-color:rgba(56,189,248,.4);
  background:linear-gradient(160deg,rgba(56,189,248,.14),rgba(56,189,248,.04));
  color:var(--sky-hi);
}
.inv-box small{display:block;font-family:var(--mono);font-size:.7rem;font-weight:400;color:var(--ink-soft);margin-top:.15rem}
.inv-arrow{
  font-family:var(--mono);font-size:.7rem;color:var(--ink-faint);
  display:flex;align-items:center;gap:.5rem;padding:.25rem 0;
}
.inv-arrow::before,.inv-arrow::after{content:"";flex:1;height:1px;background:var(--line-2)}
.inv-registry{
  width:100%;max-width:240px;
  border:1px solid var(--line-2);border-radius:var(--r);
  padding:.9rem;background:var(--panel-2);display:flex;flex-direction:column;gap:.35rem;
}
.inv-registry__title{font-family:var(--mono);font-size:.65rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:.3rem}
.inv-kind{
  font-family:var(--mono);font-size:.78rem;
  padding:.3rem .7rem;border-radius:6px;
  border:1px solid var(--line);background:var(--panel);
  color:var(--ink-soft);display:flex;align-items:center;justify-content:space-between;
}
.inv-kind .badge{font-size:.64rem;padding:.1rem .4rem;border-radius:4px;background:var(--sky-dim);color:var(--sky);border:1px solid rgba(56,189,248,.3)}
.inv-kind .badge-builtin{background:rgba(45,212,191,.1);color:var(--teal);border-color:rgba(45,212,191,.3)}
.inv-split{display:flex;flex-direction:column;gap:.3rem;padding-top:.5rem;border-top:1px solid var(--line)}
.inv-split-title{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint)}
.inv-target{
  font-family:var(--mono);font-size:.74rem;
  padding:.28rem .6rem;border-radius:6px;
  border-left:2px solid var(--sky-dim);background:var(--panel);color:var(--ink-faint);
}

/* ============================ DSL ============================ */
.dsl{display:grid;grid-template-columns:1.15fr .85fr;gap:1.4rem;align-items:start}

.codecard{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#080a0f}
.codecard__bar{
  display:flex;align-items:center;gap:.8rem;
  padding:.6rem .9rem;border-bottom:1px solid var(--line);background:var(--panel);
}
.codecard__dots{display:flex;gap:.4rem}
.codecard__dots i{width:.6rem;height:.6rem;border-radius:50%;background:var(--line-2);display:block}
.codecard__name{font-family:var(--mono);font-size:.76rem;color:var(--ink-soft);flex:1}
.copy{
  font-family:var(--mono);font-size:.7rem;color:var(--ink-soft);
  background:transparent;border:1px solid var(--line);border-radius:6px;
  padding:.25rem .6rem;cursor:pointer;transition:.2s;
}
.copy:hover{border-color:var(--sky);color:var(--sky)}
.copy.copied{border-color:var(--teal);color:var(--teal)}
.codecard__body{
  margin:0;padding:1.2rem 1.3rem;overflow-x:auto;
  font-family:var(--mono);font-size:.82rem;line-height:1.65;color:#cdd2da;
}
.codecard__body code{font-size:inherit}
/* token colors */
.codecard__body .k{color:#7fb6ff}
.codecard__body .t{color:var(--sky-hi);font-weight:600}
.codecard__body .s{color:var(--teal)}
.codecard__body .cm{color:var(--ink-faint);font-style:italic}
.codecard__body .kw{color:var(--violet)}
.codecard__body .fn{color:var(--sky-hi)}
.codecard__body .pr{color:var(--sky);user-select:none}
.codecard__body .cmd{color:var(--sky-hi);font-weight:600}
.codecard__body .num{color:var(--rose)}
.codecard__body .ok{color:var(--green)}
.codecard__body .pend{color:var(--violet)}

.graphcard{
  border:1px solid var(--line);border-radius:var(--r);background:var(--panel);
  padding:1.3rem;display:flex;flex-direction:column;gap:1rem;align-items:center;
}
.graphcard__title{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);align-self:flex-start}
.flowgraph{width:100%;max-width:320px;height:auto}
.fg-node rect{fill:#111420;stroke-width:1.6}
.fg-node text{fill:#e7e9ec;font-family:var(--mono);font-size:10.5px;text-anchor:middle;dominant-baseline:central}
.fg-node .n-task{stroke:var(--sky)}
.fg-node .n-fan{stroke:var(--teal)}
.fg-node .n-choice{stroke:var(--violet)}
.fg-node .n-signal{stroke:var(--rose)}
.fg-node .n-native{stroke:var(--ink-faint)}
.elabel{font-family:var(--mono);font-size:9px;text-anchor:middle}
.legend{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem 1rem;padding:0;margin:0;font-size:.78rem;color:var(--ink-soft);font-family:var(--mono)}
.legend li{display:flex;align-items:center;gap:.45rem}

/* ============================ ASYNC ============================ */
.async-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:1.4rem;align-items:start}

/* ============================ packtrail-ui ============================ */
.ui-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:1.4rem;align-items:start}
.ui-table{width:100%;border-collapse:collapse;font-size:.87rem}
.ui-table thead th{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);padding:.5rem .7rem;text-align:left;border-bottom:1px solid var(--line-2)}
.ui-table tbody td{padding:.65rem .7rem;border-bottom:1px solid var(--line);vertical-align:top}
.ui-table tbody tr:last-child td{border-bottom:none}
.ui-table td:first-child{font-family:var(--mono);font-size:.8rem;white-space:nowrap;color:var(--sky-hi)}
.ui-table td:nth-child(2){color:var(--ink-soft);font-size:.83rem}
.ui-panel{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:1.3rem;display:flex;flex-direction:column;gap:1.1rem}
.ui-panel__title{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint)}
.ui-feature{display:flex;align-items:flex-start;gap:.75rem}
.ui-feature-dot{width:.55rem;height:.55rem;border-radius:50%;background:var(--sky);flex:none;margin-top:.35rem}
.ui-feature h4{font-size:.95rem;margin-bottom:.2rem}
.ui-feature p{font-size:.84rem;color:var(--ink-soft)}
.ui-feature code{color:var(--sky-hi);background:var(--sky-dim);padding:.05em .35em;border-radius:4px;font-size:.8em}

/* ============================ API / EMBED ============================ */
.api{display:grid;grid-template-columns:.85fr 1.15fr;gap:1.4rem;align-items:start}
.api__envelopes{display:flex;flex-direction:column;gap:1.1rem}
.envelope{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:1.2rem 1.3rem}
.envelope__head{font-family:var(--disp);font-weight:600;font-size:1.05rem;margin-bottom:.8rem;display:flex;align-items:center;gap:.5rem}
.envelope__head span{color:var(--sky);font-family:var(--mono)}
.kv{width:100%;border-collapse:collapse;font-size:.85rem}
.kv td{padding:.4rem .5rem;border-bottom:1px solid var(--line);vertical-align:top}
.kv tr:last-child td{border-bottom:none}
.kv td:first-child{white-space:nowrap}
.kv td:nth-child(2){color:var(--ink-faint);font-family:var(--mono);font-size:.78rem}
.kv td:last-child{color:var(--ink-soft)}
.kv code{color:var(--sky-hi)}
.pill{font-family:var(--mono);font-size:.7rem;padding:.1rem .45rem;border-radius:5px;border:1px solid var(--line-2)}
.pill--ok{color:var(--teal);border-color:rgba(45,212,191,.4)}
.pill--err{color:var(--rose);border-color:rgba(251,113,133,.4)}
.pill--retry{color:var(--sky);border-color:rgba(56,189,248,.4)}
.pill--pend{color:var(--violet);border-color:rgba(167,139,250,.4)}
.envelope__note{margin-top:.9rem;font-size:.82rem;color:var(--ink-soft)}
.envelope__note strong{color:var(--ink)}
.api__hint{padding:1rem 1.3rem;border-top:1px solid var(--line);font-size:.84rem;color:var(--ink-soft)}

/* ============================ EMBED ============================ */
.embed{display:grid;grid-template-columns:1.2fr .8fr;gap:1.4rem;align-items:start}
.optlist{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}
.optlist__row{display:flex;flex-direction:column;gap:.12rem;padding:.8rem 1.1rem;border-bottom:1px solid var(--line);transition:background .2s}
.optlist__row:last-child{border-bottom:none}
.optlist__row:hover{background:var(--panel-2)}
.optlist__row code{color:var(--sky-hi);font-size:.84rem}
.optlist__row span{font-size:.81rem;color:var(--ink-soft)}

/* ============================ FOOTER ============================ */
.footer{border-top:1px solid var(--line);background:var(--bg-alt)}
.footer__inner{max-width:var(--maxw);margin:0 auto;padding:3.5rem 1.5rem 2rem;display:grid;grid-template-columns:1.4fr 1.6fr;gap:2rem}
.footer__brand .brand{margin-bottom:.8rem}
.footer__brand .brand__mark{width:22px;height:22px}
.footer__brand p{color:var(--ink-soft);font-size:.9rem;max-width:32ch}
.footer__cols{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.footer__cols h5{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:.8rem;font-weight:500}
.footer__cols a{display:block;color:var(--ink-soft);font-size:.9rem;padding:.2rem 0;transition:color .2s}
.footer__cols a:hover{color:var(--sky)}
.footer__base{
  max-width:var(--maxw);margin:0 auto;padding:1.3rem 1.5rem;
  border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;
  font-size:.78rem;color:var(--ink-faint);font-family:var(--mono);
}

/* ============================ DOCS PAGE ============================ */
.docs{max-width:var(--maxw);margin:0 auto;padding:0 1.5rem;display:grid;grid-template-columns:240px 1fr;gap:2.6rem;align-items:start}
.docs__nav{
  position:sticky;top:74px;align-self:start;
  max-height:calc(100vh - 96px);overflow-y:auto;
  padding:2rem 0;
}
.docs__nav h4{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-faint);font-weight:500;margin:1.4rem 0 .5rem;
}
.docs__nav h4:first-child{margin-top:0}
.docs__nav a{
  display:block;padding:.3rem .8rem;font-size:.86rem;color:var(--ink-soft);
  border-left:2px solid transparent;transition:color .2s,border-color .2s;
}
.docs__nav a:hover{color:var(--ink)}
.docs__nav a.active{color:var(--sky);border-left-color:var(--sky)}

.docs__body{padding:2rem 0 5rem;min-width:0}
.docs__body > section{margin-bottom:3.4rem;scroll-margin-top:84px}
.docs__body h2{font-size:clamp(1.5rem,3vw,2rem);margin:0 0 .4rem}
.docs__body h3{font-size:1.18rem;margin:2rem 0 .6rem}
.docs__body h4{font-size:1rem;margin:1.3rem 0 .4rem;color:var(--sky-hi)}
.docs__body p{color:var(--ink-soft);margin:.7rem 0;max-width:72ch}
.docs__body ul,.docs__body ol{color:var(--ink-soft);max-width:72ch;padding-left:1.3rem;margin:.7rem 0}
.docs__body li{margin:.3rem 0}
.docs__body section > .eyebrow{margin-bottom:.6rem}
.docs__body a:not(.btn){color:var(--sky);text-decoration:underline;text-underline-offset:2px;text-decoration-color:rgba(56,189,248,.35)}
.docs__body code{color:var(--sky-hi);background:var(--sky-dim);padding:.05em .4em;border-radius:5px;font-size:.86em}
.docs__body .codecard{margin:1rem 0}
.docs__body .codecard code{background:none;padding:0;color:inherit}
.docs__lead{font-size:1.06rem;color:var(--ink-soft);max-width:70ch}
.docs__hr{border:none;border-top:1px solid var(--line);margin:0}

.doctable{width:100%;border-collapse:collapse;font-size:.86rem;margin:1rem 0}
.doctable th,.doctable td{padding:.6rem .75rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.doctable thead th{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);font-weight:500;border-bottom:1px solid var(--line-2)}
.doctable tbody tr:last-child td{border-bottom:none}
.doctable td:first-child{font-family:var(--mono);font-size:.8rem;color:var(--sky-hi);white-space:nowrap}
.doctable td code{font-size:.92em}
.doctable td:nth-child(2){color:var(--ink-soft)}

.callout{
  border:1px solid var(--line);border-left:3px solid var(--sky);border-radius:var(--r-sm);
  background:var(--panel);padding:.9rem 1.1rem;margin:1.1rem 0;font-size:.9rem;color:var(--ink-soft);
}
.callout strong{color:var(--ink)}
.callout--warn{border-left-color:var(--rose)}

.docs__nav-link{color:var(--sky)!important;font-weight:500}

@media (max-width:960px){
  .docs{grid-template-columns:1fr}
  .docs__nav{display:none}
}

/* ============================ REVEAL ============================ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease), transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
.cards .reveal:nth-child(2){transition-delay:.06s}
.cards .reveal:nth-child(3){transition-delay:.12s}
.cards .reveal:nth-child(4){transition-delay:.18s}

/* ============================ RESPONSIVE ============================ */
@media (max-width:960px){
  .cards--4{grid-template-columns:repeat(2,1fr)}
  .cards--3{grid-template-columns:repeat(2,1fr)}
  .hero__inner{grid-template-columns:1fr;gap:2.5rem}
  .hero__art{order:-1;max-width:300px;margin:0 auto}
  .dsl,.api,.invoker-layout,.async-layout,.embed,.ui-layout{grid-template-columns:1fr}
  .arch__top{grid-template-columns:1fr}
  .arch__stores{grid-template-columns:repeat(3,1fr)}
  .choices{grid-template-columns:1fr}
  .footer__inner{grid-template-columns:1fr}
}
@media (max-width:620px){
  .nav__links{gap:.9rem;font-size:.82rem}
  .nav__links a:not(.nav__gh){display:none}
  .cards--4,.cards--3,.cards--2{grid-template-columns:1fr}
  .arch__stores{grid-template-columns:repeat(2,1fr)}
  .footer__cols{grid-template-columns:1fr 1fr}
  .footer__base{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}