/* ============================================================
   LAST — survival launchpad
   Quiet by default: one weight, no borders, no shadows, air.
   Everything loud in this design is a real number.
   ============================================================ */

:root{
  --bg:#FAF9FE;
  --panel:#FFFFFF;
  --ink:#130F1C;
  --ink-2:#3B3648;
  --muted:#6E6A7C;
  --faint:#9C97A8;
  --line:rgba(19,15,28,.08);
  --line-2:rgba(19,15,28,.14);
  --ember:#DC4426;
  --ember-2:#F2643F;
  --gold:#C08A2E;
  --moss:#3F7A54;
  --on-dark:#F6F3FF;
  --on-dark-2:rgba(246,243,255,.66);
  --on-dark-3:rgba(246,243,255,.38);
  --r:20px;
  --r-sm:12px;
  --r-xs:8px;
  --pill:90px;
  --f:"Geist",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --f-mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --shell:1240px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--f);font-size:16px;line-height:1.45;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,canvas{max-width:100%;display:block}
::selection{background:var(--ink);color:var(--bg)}
:focus-visible{outline:2px solid var(--ember);outline-offset:3px;border-radius:4px}
button{font:inherit}

/* ---------- type: one weight, size does the work ---------- */
h1,h2,h3,h4{margin:0;font-weight:400;letter-spacing:-.02em;line-height:1.06}
.d1{font-size:clamp(40px,6.2vw,76px);line-height:1.04;letter-spacing:-.028em}
.d2{font-size:clamp(28px,3.6vw,44px);line-height:1.08;letter-spacing:-.024em}
.d3{font-size:clamp(20px,2.1vw,26px);line-height:1.14;letter-spacing:-.018em}
.d4{font-size:18px;line-height:1.2;letter-spacing:-.012em}
p{margin:0 0 14px}
.lede{font-size:17px;line-height:1.5;color:var(--muted);max-width:56ch}
.eyebrow{font-size:13px;line-height:1.3;color:var(--faint);letter-spacing:0;text-transform:none}
.dim{color:var(--muted)}
.faint{color:var(--faint)}
.em{color:var(--ember)}
.mono{font-family:var(--f-mono)}
.tnum{font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ---------- layout ---------- */
.wrap{width:min(var(--shell),calc(100% - 48px));margin:0 auto}
.section{padding:110px 0}
.section-tight{padding:64px 0}
.sec-head{margin-bottom:38px;max-width:62ch}
.sec-head p{margin:12px 0 0}
.hr{height:1px;background:var(--line);border:0;margin:0}
.grid{display:grid;gap:20px}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;align-items:center}

/* ---------- surfaces ---------- */
.panel{background:var(--panel);border-radius:var(--r);border:1px solid var(--line)}
.panel-pad{padding:26px 28px}
.panel-flat{border:0;background:transparent}
.plate{
  position:relative;border-radius:var(--r);overflow:hidden;color:var(--on-dark);
  background:
    radial-gradient(60% 80% at 84% 12%, rgba(255,94,46,.42) 0%, rgba(255,94,46,0) 60%),
    radial-gradient(70% 90% at 8% 6%, rgba(120,70,255,.22) 0%, rgba(120,70,255,0) 58%),
    linear-gradient(168deg,#15111C 0%,#0C0A11 60%,#08070C 100%);
}
.plate::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.30;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}
.plate>*{position:relative;z-index:1}
.plate .dim,.plate .lede{color:var(--on-dark-2)}
.plate .eyebrow,.plate .faint{color:var(--on-dark-3)}

/* label above a block — replaces the old chunky tab */
.tab{
  display:block;font-size:13px;color:var(--faint);
  margin:0 0 12px 2px;letter-spacing:0;text-transform:none;
}
.tab .dot{display:none}
.plate .tab{color:var(--on-dark-3)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:400;line-height:18px;letter-spacing:0;text-transform:none;
  padding:11px 20px;border-radius:var(--pill);cursor:pointer;
  background:var(--ink);color:var(--bg);border:1px solid var(--ink);
  transition:opacity .15s ease,background .15s ease,color .15s ease,transform .15s ease;
  white-space:nowrap;
}
.btn:hover{opacity:.82}
.btn:active{transform:scale(.985)}
.btn-ember{background:var(--ember);border-color:var(--ember);color:#fff}
.btn-ink{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.btn-light{background:var(--panel);color:var(--ink);border-color:var(--panel)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{background:rgba(19,15,28,.04);opacity:1}
.plate .btn-ghost,.hero-plate .btn-ghost{color:var(--on-dark);border-color:rgba(246,243,255,.28)}
.plate .btn-ghost:hover,.hero-plate .btn-ghost:hover{background:rgba(246,243,255,.10)}
.btn-sm{font-size:13px;padding:8px 15px}
.btn-lg{font-size:15px;padding:14px 26px}
.btn[disabled]{opacity:.4;pointer-events:none}

/* ---------- chips ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:6px 11px;border-radius:var(--pill);
  background:rgba(19,15,28,.05);color:var(--ink-2);border:0;white-space:nowrap;
}
.chip-live{background:rgba(220,68,38,.10);color:var(--ember)}
.chip-dead{background:rgba(19,15,28,.06);color:var(--faint)}
.chip-gold{background:rgba(192,138,46,.14);color:var(--gold)}
.chip-soon{background:rgba(19,15,28,.05);color:var(--muted)}
.plate .chip{background:rgba(246,243,255,.14);color:var(--on-dark)}
.pulse{width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}

/* small square marker, straight from the reference language */
.mk{display:inline-block;width:7px;height:7px;background:var(--ember);border-radius:1px;margin-right:9px;vertical-align:1px}

/* ---------- nav ---------- */
.nav{position:absolute;top:0;left:0;right:0;z-index:60;background:transparent}
.nav-in{display:flex;align-items:center;gap:26px;height:76px}
.brand{display:flex;align-items:center;gap:9px}
.brand .mark{width:26px;height:26px;border-radius:7px;display:block;object-fit:cover}
.brand .word{font-size:19px;letter-spacing:-.02em;line-height:1}
.nav-links{display:flex;gap:4px;margin-left:10px}
.nav-links a{font-size:14px;padding:7px 12px;border-radius:var(--pill);color:var(--on-dark-2)}
.nav-links a:hover{color:var(--on-dark);background:rgba(246,243,255,.10)}
.nav-links a.on{color:var(--on-dark);background:rgba(246,243,255,.14)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.icon-btn{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;flex:none;
  border:1px solid var(--line-2);color:var(--ink);transition:.15s;
}
.icon-btn:hover{background:rgba(19,15,28,.05)}
.nav:not(.nav-solid) .icon-btn{color:var(--on-dark);border-color:rgba(246,243,255,.30)}
.nav:not(.nav-solid) .icon-btn:hover{background:rgba(246,243,255,.12)}
.burger{display:none;width:36px;height:32px;border-radius:var(--pill);border:1px solid rgba(246,243,255,.28);background:transparent;cursor:pointer;padding:0}
.burger span{display:block;width:14px;height:1px;background:var(--on-dark);margin:3px auto}
/* pages without a dark hero get an ink nav on the light shell */
.nav-solid{position:sticky;background:rgba(250,249,254,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-solid .nav-links a{color:var(--muted)}
.nav-solid .nav-links a:hover{color:var(--ink);background:rgba(19,15,28,.05)}
.nav-solid .nav-links a.on{color:var(--ink);background:rgba(19,15,28,.06)}
.nav-solid .burger{border-color:var(--line-2)}
.nav-solid .burger span{background:var(--ink)}
.nav-solid .brand .word{color:var(--ink)}
/* over the dark hero the nav has to invert, and it is not inside .hero-plate */
.nav:not(.nav-solid) .brand .word{color:var(--on-dark)}
.nav:not(.nav-solid) .btn-ghost{color:var(--on-dark);border-color:rgba(246,243,255,.30)}
.nav:not(.nav-solid) .btn-ghost:hover{background:rgba(246,243,255,.12);opacity:1}

/* ---------- hero ---------- */
.hero-plate{
  position:relative;min-height:660px;display:flex;align-items:flex-end;overflow:hidden;
  color:var(--on-dark);
  background:
    radial-gradient(58% 68% at 80% 16%, rgba(255,94,46,.52) 0%, rgba(255,94,46,0) 62%),
    radial-gradient(78% 88% at 10% 2%, rgba(120,70,255,.26) 0%, rgba(120,70,255,0) 58%),
    linear-gradient(168deg,#15111C 0%,#0C0A11 58%,#08070C 100%);
}
.hero-plate::after{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:1;opacity:.24;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero-in{position:relative;z-index:2;padding:150px 0 70px}
.hero-in .lede{color:var(--on-dark-2);max-width:46ch}

/* ---------- stat rail ---------- */
.rail{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border-radius:var(--r);overflow:hidden}
.rail>div{background:var(--panel);padding:22px 24px}
.rail .k{font-size:13px;color:var(--faint)}
.rail .v{font-size:34px;line-height:1.1;margin-top:6px;letter-spacing:-.028em;font-variant-numeric:tabular-nums}

/* ---------- field ---------- */
.field-wrap{position:relative}
.field{width:100%;height:auto;display:block;image-rendering:pixelated;border-radius:var(--r-sm);cursor:crosshair}
.field-tip{
  position:absolute;z-index:30;pointer-events:none;opacity:0;transform:translate(-50%,-120%);
  background:var(--ink);color:var(--bg);border-radius:var(--r-xs);
  padding:8px 11px;font-size:12px;line-height:1.5;white-space:nowrap;transition:opacity .12s;
}
.field-tip.on{opacity:1}
.field-tip b{font-weight:500}
.field-tip .st-a{color:#8FD9A4}
.field-tip .st-d{color:var(--ember-2)}
.legend{display:flex;gap:18px;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--faint)}
.legend i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:7px;vertical-align:0}

/* ---------- meters ---------- */
.meter{height:4px;border-radius:var(--pill);background:rgba(19,15,28,.10);overflow:hidden}
.meter-fill{height:100%;background:var(--ember);border-radius:var(--pill);transition:width .6s cubic-bezier(.22,.8,.28,1)}
.meter-thin{height:3px}
.plate .meter,.hero-plate .meter{background:rgba(246,243,255,.18)}

/* ---------- lists / feed ---------- */
.feed{max-height:340px;overflow-y:auto}
.feed-row{display:grid;grid-template-columns:32px 1fr auto;gap:12px;align-items:center;padding:11px 0;border-bottom:1px solid var(--line)}
.feed-row:last-child{border-bottom:0}
.feed-row canvas{width:32px;height:32px;image-rendering:pixelated;border-radius:6px}
.feed-row .id{font-size:14px;font-variant-numeric:tabular-nums}
.feed-row .sub{font-size:12.5px;color:var(--faint)}
.feed-row .t{font-size:12.5px;color:var(--faint)}
.feed-row.fresh{animation:flashIn 1.2s ease}
@keyframes flashIn{0%{background:rgba(220,68,38,.14)}100%{background:transparent}}
.lb-row{display:grid;grid-template-columns:32px 1fr auto;gap:12px;align-items:center;padding:11px 0;border-bottom:1px solid var(--line)}
.lb-row:last-child{border-bottom:0}
.lb-row canvas{width:32px;height:32px;image-rendering:pixelated;border-radius:6px}

/* ---------- ladder ---------- */
.ladder{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:1px;background:var(--line);border-radius:var(--r);overflow:hidden}
.rung{background:var(--panel);padding:24px 18px;position:relative}
.rung .n{font-size:34px;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.rung .mc{font-size:13px;color:var(--faint);margin-top:8px}
.rung .lb{font-size:12px;margin-top:14px;color:var(--muted);min-height:16px}
.rung.past{background:var(--panel)}
.rung.past .n,.rung.past .mc,.rung.past .lb{color:var(--faint)}
.rung.now{background:var(--ink);color:var(--on-dark)}
.rung.now .mc{color:var(--on-dark-3)}
.rung.now .lb{color:var(--ember-2)}
.rung.now::before{content:attr(data-flag);display:block;font-size:11px;color:var(--ember-2);margin-bottom:10px}
.rung.final .n{color:var(--ember)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.card{
  background:var(--panel);border-radius:var(--r);border:1px solid var(--line);
  display:flex;flex-direction:column;overflow:hidden;
  transition:transform .2s cubic-bezier(.22,.8,.28,1),border-color .2s;
}
.card:hover{transform:translateY(-3px);border-color:var(--line-2)}
.card-top{display:flex;align-items:center;gap:12px;padding:18px 20px}
.card-top canvas{width:32px;height:32px;image-rendering:pixelated;border-radius:7px}
.card-top .nm{font-size:17px;letter-spacing:-.015em}
.card-top .sy{font-size:13px;color:var(--faint)}
.card-mini{display:block;width:100%;height:auto;image-rendering:pixelated}
.card-stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.card-stats>div{background:var(--panel);padding:14px 20px}
.card-stats .k{font-size:12.5px;color:var(--faint)}
.card-stats .v{font-size:19px;margin-top:3px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.card-foot{padding:14px 20px;margin-top:auto;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--faint)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border-radius:var(--r);overflow:hidden}
.step{background:var(--panel);padding:28px 24px 32px}
.step .no{font-size:13px;color:var(--ember);margin-bottom:16px}
.step h3{font-size:19px;margin-bottom:10px;letter-spacing:-.018em}
.step p{font-size:14.5px;line-height:1.5;color:var(--muted);margin:0}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.split>div{padding:40px 38px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line)}
.split>div:last-child{background:var(--ink);color:var(--on-dark);border-color:var(--ink)}
.split h3{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px}
.split p{margin:0;font-size:15.5px;line-height:1.52;color:var(--muted)}
.split>div:last-child p{color:var(--on-dark-2)}

/* ---------- multiplier strip ---------- */
.mult{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:1px;background:var(--line);border-radius:var(--r);overflow:hidden}
.mult>div{background:var(--panel);padding:28px 20px}
.mult>div:last-child{background:var(--ink);color:var(--on-dark)}
.mult .pop{font-size:13px;color:var(--faint)}
.mult>div:last-child .pop{color:var(--on-dark-3)}
.mult .x{font-size:38px;line-height:1;margin:10px 0 8px;letter-spacing:-.03em}
.mult>div:last-child .x{color:var(--ember-2)}
.mult .cash{font-size:13px;color:var(--muted)}
.mult>div:last-child .cash{color:var(--on-dark-3)}

/* ---------- tables ---------- */
.tbl-frame{border-radius:var(--r);border:1px solid var(--line);overflow:auto;background:var(--panel)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:14px 20px;text-align:left;border-bottom:1px solid var(--line)}
th{font-size:12.5px;color:var(--faint);font-weight:400}
td{font-variant-numeric:tabular-nums;color:var(--ink-2)}
td.name{color:var(--ink)}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(19,15,28,.02)}
tr.done td{color:var(--faint)}
tr.nxt td{background:rgba(220,68,38,.06);color:var(--ember)}

/* ---------- graveyard ---------- */
.yard{display:grid;grid-template-columns:repeat(auto-fill,96px);gap:14px;justify-content:space-between}
.grave{text-align:center;cursor:pointer;transition:transform .15s}
.grave:hover{transform:translateY(-2px)}
.grave canvas{width:80px;height:80px;image-rendering:pixelated;border-radius:10px;margin:0 auto}
.grave .id{font-size:12px;color:var(--faint);margin-top:8px;font-variant-numeric:tabular-nums}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.modal.on{display:flex}
.modal-bg{position:absolute;inset:0;background:rgba(19,15,28,.42);backdrop-filter:blur(6px)}
.modal-box{position:relative;width:min(520px,100%);max-height:88vh;overflow:auto;background:var(--panel);border-radius:var(--r);animation:pop .22s cubic-bezier(.22,.9,.28,1)}
@keyframes pop{from{transform:translateY(10px);opacity:0}to{transform:none;opacity:1}}
.modal-x{position:absolute;right:14px;top:14px;width:30px;height:30px;border-radius:50%;border:0;background:rgba(19,15,28,.05);cursor:pointer;color:var(--muted);font-size:13px;line-height:1}
.modal-x:hover{background:rgba(19,15,28,.09)}
.sheet-head{display:flex;gap:18px;padding:26px 26px 22px;align-items:center}
.sheet-head canvas{width:96px;height:96px;image-rendering:pixelated;border-radius:14px;flex:none}
.trait-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-top:1px solid var(--line)}
.trait{background:var(--panel);padding:14px 20px}
.trait .k{font-size:12.5px;color:var(--faint)}
.trait .v{font-size:15px;margin-top:3px}
.trait .r{font-size:12.5px;color:var(--muted);margin-top:2px}
.stamp{font-size:13px;color:var(--ember);border:1px solid rgba(220,68,38,.4);border-radius:var(--pill);padding:6px 14px;display:inline-block}

/* ---------- docs ---------- */
.docs-shell{display:grid;grid-template-columns:220px minmax(0,1fr);gap:56px;align-items:start}
.manual{position:sticky;top:100px;background:transparent;border:0;padding:0}
.manual-head{padding:0 0 18px}
.manual-head small{display:block;font-size:12.5px;color:var(--faint)}
.manual-head strong{display:block;font-size:17px;font-weight:400;margin-top:4px;letter-spacing:-.015em}
.manual nav{display:flex;flex-direction:column;gap:1px}
.manual nav a{display:flex;gap:12px;align-items:baseline;padding:8px 0;color:var(--muted);font-size:14.5px;background:none;border:0}
.manual nav a:hover{color:var(--ink)}
.manual nav a.on{color:var(--ink)}
.manual nav a i{font-style:normal;font-size:12px;color:var(--faint);font-variant-numeric:tabular-nums}
.manual nav a.on i{color:var(--ember)}
.manual-note{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);color:var(--faint);font-size:13px;line-height:1.5}
.chapter{scroll-margin-top:110px;margin-bottom:72px}
.sheet{background:transparent;border:0;padding:0}
.sheet h2{font-size:30px;margin:0 0 18px;letter-spacing:-.024em}
.sheet h3{font-size:20px;margin:36px 0 12px;letter-spacing:-.018em}
.sheet h3:first-child{margin-top:0}
.sheet p,.sheet li{font-size:15.5px;line-height:1.62;color:var(--muted)}
.sheet strong{color:var(--ink);font-weight:400}
.sheet ul,.sheet ol{padding-left:18px;margin:0 0 18px}
.sheet li{margin:8px 0}
.sheet li::marker{color:var(--faint)}
.sheet code{font-family:var(--f-mono);font-size:13.5px;background:rgba(19,15,28,.05);border-radius:5px;padding:2px 6px}
.sheet a{text-decoration:underline;text-underline-offset:3px}
.callout{border-radius:var(--r-sm);background:rgba(19,15,28,.03);padding:20px 22px;margin:0 0 22px}
.callout p{color:var(--ink-2)}
.callout p:last-child{margin:0}

/* ---------- forms ---------- */
.field-row{margin-bottom:22px}
label.lb{display:block;font-size:13px;color:var(--faint);margin-bottom:8px}
input[type=text],input[type=number],select,textarea{
  width:100%;font-family:var(--f);font-size:15px;color:var(--ink);
  background:var(--bg);border:1px solid var(--line-2);border-radius:var(--r-sm);padding:12px 14px;
  transition:border-color .15s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ink)}
textarea{resize:vertical}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg button{
  padding:9px 15px;background:var(--bg);border:1px solid var(--line-2);border-radius:var(--pill);
  cursor:pointer;font-size:13.5px;color:var(--muted);transition:.15s;
}
.seg button:hover{border-color:var(--ink)}
.seg button.on{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.hint{font-size:12.5px;color:var(--faint);margin-top:8px;line-height:1.5}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);padding:70px 0 44px;margin-top:40px}
.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.foot h4{font-size:13px;color:var(--faint);font-weight:400;margin-bottom:14px}
.foot a{display:block;font-size:14.5px;padding:5px 0;color:var(--muted)}
.foot a:hover{color:var(--ink)}
.foot-bot{margin-top:52px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12.5px;color:var(--faint)}

/* ---------- utils ---------- */
.flex{display:flex}.between{justify-content:space-between}.center{align-items:center}
.gap8{gap:8px}.gap12{gap:12px}.gap16{gap:16px}.gap20{gap:20px}
.wrapf{flex-wrap:wrap}
.mt8{margin-top:8px}.mt12{margin-top:12px}.mt16{margin-top:16px}.mt20{margin-top:20px}.mt28{margin-top:28px}
.mb0{margin-bottom:0}
.dashed-top{border-top:1px solid var(--line);padding-top:14px;margin-top:14px}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.8,.28,1)}
.reveal.in{opacity:1;transform:none}
.shake{animation:shake .5s cubic-bezier(.36,.07,.19,.97)}
@keyframes shake{10%,90%{transform:translateX(-1px)}20%,80%{transform:translateX(2px)}30%,50%,70%{transform:translateX(-3px)}40%,60%{transform:translateX(3px)}}

/* ---------- responsive ---------- */
@media(max-width:1080px){
  .docs-shell{grid-template-columns:minmax(0,1fr);gap:34px}
  .manual{position:relative;top:auto}
  .manual nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-in{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .two-col{gap:40px}
}
@media(max-width:900px){
  .nav-links{display:none}
  .nav-links.open{
    display:flex;flex-direction:column;position:absolute;top:76px;left:24px;right:24px;
    background:var(--panel);border-radius:var(--r);padding:12px;gap:2px;box-shadow:0 18px 44px rgba(19,15,28,.14);
  }
  .nav-links.open a{color:var(--muted)}
  .burger{display:block}
  .nav-right .btn:not(.keep){display:none}
  .split{grid-template-columns:minmax(0,1fr)}
  .two-col{grid-template-columns:minmax(0,1fr);gap:32px}
  .ladder,.mult{grid-auto-flow:row;grid-auto-columns:auto}
  .rung,.mult>div{display:flex;align-items:baseline;gap:16px;padding:18px 20px}
  .rung .lb,.mult .cash{margin-left:auto;margin-top:0}
  .rung .mc{margin-top:0}
  .rung.now::before{margin-bottom:0}
  .mult .x{margin:0}
}
@media(max-width:640px){
  .wrap{width:calc(100% - 32px)}
  .section{padding:68px 0}
  .section-tight{padding:44px 0}
  .rail{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:minmax(0,1fr)}
  .foot-in{grid-template-columns:minmax(0,1fr)}
  .panel-pad{padding:22px 20px}
  .split>div{padding:28px 24px}
  .hero-plate{min-height:auto}
  .hero-in{padding:112px 0 52px}
  .yard{grid-template-columns:repeat(auto-fill,minmax(72px,1fr));justify-content:start}
  .grave canvas{width:64px;height:64px}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}