/* Active Ragdoll 2D — landing page
   Flat comic look taken from the asset itself: thick ink outlines, hard offset
   shadows, colours sampled from the demo scenes. No external requests. */

:root {
  --paper: #f4f1e8;
  --surface: #fffdf7;
  --ink: #1b1a1f;
  --muted: #5b5963;
  --line: #1b1a1f;
  --sage: #7f9f86;
  --sage-soft: #dfe8dc;
  --castle: #bbb8c6;
  --pennant: #e0685a;
  --gold: #e2b04a;
  --shield: #6f9ccf;
  --dusk: #a58aa6;
  --shadow: #1b1a1f;
  --highlight: color-mix(in srgb, #e2b04a 70%, transparent);
  --radius: 14px;
  --stroke: 3px;
  --maxw: 1120px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #16151b;
    --surface: #211f28;
    --ink: #efebe0;
    --muted: #b0acb8;
    --line: #efebe0;
    --sage-soft: #2a3530;
    --shadow: #000;
    --highlight: color-mix(in srgb, #e2b04a 32%, transparent);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--pennant); }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: 20px; }

h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 4.4vw, 3.2rem); font-weight: 900; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); font-weight: 900; }
h3 { font-size: 1.15rem; font-weight: 800; }
p { margin: 0 0 1em; }

.eyebrow {
  display: inline-block;
  font-size: .8rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  background: var(--gold); color: #1b1a1f;
  border: var(--stroke) solid #1b1a1f; border-radius: 999px;
  padding: .15em .8em; margin-bottom: 1rem;
}

.lead { font-size: 1.15rem; color: var(--muted); max-width: 60ch; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: var(--stroke) solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; text-decoration: none; }
.brand svg { width: 34px; height: 34px; }
.nav { margin-left: auto; display: flex; gap: 4px 18px; flex-wrap: wrap; font-weight: 700; font-size: .95rem; }
.nav a { text-decoration: none; }
@media (max-width: 640px) {
  .nav { margin-left: 0; width: 100%; padding-bottom: 10px; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  font-weight: 800; text-decoration: none;
  padding: .7em 1.2em;
  border: var(--stroke) solid #1b1a1f; border-radius: 12px;
  box-shadow: 4px 4px 0 var(--shadow);
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--shadow); color: inherit; }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--shadow); }
.btn-primary { background: var(--pennant); color: #fff; }
.btn-primary:hover { color: #fff; }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }

/* ---------- sections ---------- */
section { padding-block: clamp(56px, 9vw, 96px); }
section[id] { scroll-margin-top: 64px; }
@media (max-width: 640px) { section[id] { scroll-margin-top: 96px; } }
section + section { border-top: var(--stroke) dashed color-mix(in srgb, var(--line) 25%, transparent); }
.section-head { margin-bottom: 2.2rem; }

.frame {
  border: var(--stroke) solid var(--line);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 var(--shadow);
  overflow: hidden;
  background: var(--surface);
}

.card {
  background: var(--surface);
  border: var(--stroke) solid var(--line);
  border-radius: var(--radius);
  box-shadow: 5px 5px 0 var(--shadow);
  padding: 1.3rem 1.3rem 1.1rem;
}
.card p:last-child { margin-bottom: 0; }
.card p { color: var(--muted); }

/* ---------- hero ---------- */
.hero { padding-block: clamp(40px, 7vw, 80px); }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 5vw, 56px); align-items: center; }
.hero .tagline { font-weight: 900; font-size: 1.25rem; margin-bottom: 1rem; }
.hero .tagline span { background: linear-gradient(transparent 62%, var(--highlight) 62%); }
.hero .actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 1.6rem; }
.hero figure { margin: 0; transform: rotate(1deg); }
.hero figcaption { font-size: .85rem; color: var(--muted); padding: .5em .9em; border-top: var(--stroke) solid var(--line); }
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero figure { transform: none; }
}

.facts { display: flex; flex-wrap: wrap; gap: 10px; margin: 1.4rem 0 0; padding: 0; list-style: none; }
.facts li {
  font-size: .85rem; font-weight: 700;
  border: 2px solid var(--line); border-radius: 999px; padding: .2em .8em;
  background: var(--surface);
}

/* ---------- how it works ---------- */
.how { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(28px, 5vw, 56px); align-items: center; }
@media (max-width: 860px) { .how { grid-template-columns: 1fr; } }
.steps { list-style: none; margin: 1.2rem 0 0; padding: 0; display: grid; gap: 14px; }
.steps li { display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: start; }
.steps .num {
  width: 44px; height: 44px; display: grid; place-items: center;
  font-weight: 900; border: var(--stroke) solid #1b1a1f; border-radius: 50%;
  background: var(--sage); color: #1b1a1f;
}
.steps li:nth-child(2) .num { background: var(--shield); }
.steps li:nth-child(3) .num { background: var(--gold); }
.steps strong { display: block; }
.steps p { margin: 0; color: var(--muted); }

.flop { text-align: center; }
.flop svg { width: 100%; max-width: 280px; margin: 0 auto; overflow: visible; }
.flop .ground { stroke: var(--sage); }
.flop .figure { stroke: var(--ink); fill: none; stroke-width: 9; stroke-linecap: round; stroke-linejoin: round; }
.flop .figure .head { fill: var(--ink); stroke: none; }
.flop label { display: block; font-weight: 800; margin-top: 1rem; }
.flop input[type=range] { width: min(280px, 100%); accent-color: var(--pennant); }
.flop output { font-variant-numeric: tabular-nums; font-weight: 800; }
.flop small { display: block; color: var(--muted); margin-top: .3rem; }

/* limbs swing around their joints; amplitude driven by --flop (0..1) */
.flop { --flop: .4; }
.flop .sway { transform-box: view-box; animation: sway calc(2.6s - var(--flop) * 1.4s) ease-in-out infinite alternate; }
.flop .arm-l { transform-origin: 100px 78px; --a: calc(var(--flop) * 26deg); }
.flop .arm-r { transform-origin: 100px 78px; --a: calc(var(--flop) * -26deg); animation-delay: -.4s; }
.flop .fore-l { transform-origin: 66px 108px; --a: calc(var(--flop) * 40deg); animation-delay: -.2s; }
.flop .fore-r { transform-origin: 134px 108px; --a: calc(var(--flop) * -40deg); animation-delay: -.6s; }
.flop .torso { transform-origin: 100px 150px; --a: calc(var(--flop) * 7deg); animation-delay: -.3s; }
.flop .neck { transform-origin: 100px 70px; --a: calc(var(--flop) * -18deg); animation-delay: -.5s; }
@keyframes sway { from { transform: rotate(calc(var(--a) * -1)); } to { transform: rotate(var(--a)); } }
@media (prefers-reduced-motion: reduce) { .flop .sway { animation: none; } }

/* ---------- features ---------- */
.grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr)); }
.feature h3 { display: flex; align-items: center; gap: .55em; }
.feature .dot {
  flex: none; width: 18px; height: 18px; border-radius: 50%;
  border: var(--stroke) solid #1b1a1f; background: var(--c, var(--sage));
}

/* ---------- gallery ---------- */
.gallery { display: grid; gap: 22px; grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); }
.gallery figure { margin: 0; }
.gallery img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }
.gallery figcaption { font-size: .9rem; font-weight: 700; padding: .55em .9em; border-top: var(--stroke) solid var(--line); }

/* ---------- demo scenes ---------- */
.scenes { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(min(330px, 100%), 1fr)); }
.scenes li {
  display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: baseline;
  background: var(--surface); border: 2px solid var(--line); border-radius: 12px; padding: .7em 1em;
}
.scenes code {
  font: 800 .95rem ui-monospace, "Cascadia Code", Consolas, monospace;
  background: var(--sage-soft); border-radius: 6px; padding: .05em .45em;
}
.scenes span { color: var(--muted); }
.scenes b { color: var(--ink); }

/* ---------- coming next ---------- */
.next { background: repeating-linear-gradient(-45deg, transparent 0 18px, color-mix(in srgb, var(--dusk) 10%, transparent) 18px 36px); }
.badge {
  display: inline-block; font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  background: var(--dusk); color: #1b1a1f; border: 2px solid #1b1a1f; border-radius: 999px; padding: .1em .7em;
}

/* ---------- two column info ---------- */
.split { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); }
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { position: relative; padding-left: 1.7em; margin-bottom: .5em; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .45em; width: .9em; height: .9em;
  border: 2px solid var(--line); border-radius: 50%; background: var(--sage);
}

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: 180px 1fr; gap: clamp(22px, 4vw, 44px); align-items: start; }
@media (max-width: 640px) { .about { grid-template-columns: 1fr; } }
.avatar {
  width: 180px; aspect-ratio: 1; border-radius: 50%;
  border: var(--stroke) solid var(--line); box-shadow: 5px 5px 0 var(--shadow);
  background: var(--sage-soft); overflow: hidden; display: grid; place-items: center;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar svg { width: 62%; }
.links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 1.2rem; }
.links a {
  font-weight: 700; font-size: .95rem; text-decoration: none;
  border: 2px solid var(--line); border-radius: 999px; padding: .25em .9em; background: var(--surface);
}

/* ---------- contact ---------- */
.contact { text-align: center; }
.contact .lead { margin-inline: auto; }
.contact .actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; margin-top: 1.4rem; }

/* ---------- footer ---------- */
.site-footer { border-top: var(--stroke) solid var(--line); padding-block: 28px; font-size: .9rem; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: center; }
.site-footer nav { display: flex; gap: 18px; margin-left: auto; font-weight: 700; }
.site-footer .fine { width: 100%; font-size: .8rem; margin: 0; }
@media (max-width: 640px) { .site-footer nav { margin-left: 0; } }

/* ---------- brand logo ---------- */
.brand img {
  width: 44px; height: 44px; object-fit: cover;
  border: var(--stroke) solid var(--line); border-radius: 10px;
  box-shadow: 2px 2px 0 var(--shadow);
}

/* ---------- deep-dive chapters ---------- */
h4 { font-size: 1.05rem; font-weight: 800; margin: 0 0 .35em; line-height: 1.25; }
.chapter { margin-top: clamp(64px, 9vw, 104px); scroll-margin-top: 80px; }
.chapter-head { display: flex; align-items: center; gap: 14px; margin-bottom: 1rem; }
.chapter-head .n {
  flex: none; font: 900 .9rem ui-monospace, "Cascadia Code", Consolas, monospace;
  background: var(--ink); color: var(--paper); border-radius: 8px; padding: .25em .6em;
}
.chapter-head h3 { font-size: clamp(1.4rem, 2.8vw, 1.9rem); font-weight: 900; margin: 0; }
.chapter > .lead { margin-bottom: 1.8rem; }
.stack > * + * { margin-top: 22px; }

.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 2rem 0 0; padding: 0; list-style: none; }
.toc a {
  display: inline-block; font-weight: 700; font-size: .9rem; text-decoration: none;
  border: 2px solid var(--line); border-radius: 999px; padding: .25em .85em; background: var(--surface);
}
.toc a:hover { background: var(--gold); color: #1b1a1f; border-color: #1b1a1f; }

.two { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(22px, 4vw, 44px); align-items: start; }
.two.wide-left { grid-template-columns: 1.2fr 1fr; }
@media (max-width: 860px) { .two, .two.wide-left { grid-template-columns: 1fr; } }

.notice {
  border: var(--stroke) dashed var(--line); border-radius: var(--radius);
  background: var(--surface); padding: .8em 1.1em; font-size: .95rem; margin-top: 1.4rem;
}

/* diagrams: inline SVG picks up the theme through these classes */
.diagram { margin: 0; }
.diagram svg { display: block; width: 100%; height: auto; }
.diagram figcaption { font-size: .85rem; color: var(--muted); padding: .55em .9em; border-top: var(--stroke) solid var(--line); }
svg text { fill: var(--ink); font: 700 13px system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
svg .t-muted { fill: var(--muted); font-weight: 600; }
svg .t-small { font-size: 11px; }
svg .t-mono { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }
svg .s-ink { stroke: var(--ink); }
svg .f-ink { fill: var(--ink); }
svg .s-muted { stroke: var(--muted); }
svg .f-surface { fill: var(--surface); }
svg .f-paper { fill: var(--paper); }
svg .f-soft { fill: var(--sage-soft); }

/* tables */
.table-wrap {
  overflow-x: auto; background: var(--surface);
  border: var(--stroke) solid var(--line); border-radius: var(--radius); box-shadow: 5px 5px 0 var(--shadow);
}
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: .6em .9em; border-bottom: 2px solid color-mix(in srgb, var(--line) 14%, transparent); }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; background: var(--sage-soft); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td:first-child { font-weight: 700; }
.table-note { font-size: .85rem; color: var(--muted); margin: .8rem 0 0; }

p code, li code, td code, dd code {
  font: 600 .86em ui-monospace, "Cascadia Code", Consolas, monospace;
  background: var(--sage-soft); border-radius: 5px; padding: .05em .35em; overflow-wrap: anywhere;
}
kbd {
  font: 800 .85em ui-monospace, "Cascadia Code", Consolas, monospace;
  border: 2px solid var(--line); border-bottom-width: 4px; border-radius: 6px;
  padding: 0 .4em; background: var(--surface); white-space: nowrap;
}

pre.code {
  margin: 0; overflow-x: auto;
  background: #1b1a1f; color: #efebe0;
  border: var(--stroke) solid var(--line); border-radius: var(--radius); box-shadow: 5px 5px 0 var(--shadow);
  padding: 1em 1.2em; font: 500 .86rem/1.6 ui-monospace, "Cascadia Code", Consolas, monospace;
}
pre.code .c { color: #9d9aa6; }
pre.code .k { color: #e2b04a; }
pre.code .s { color: #a9d18e; }
pre.code .t { color: #8fb8e6; }

/* numbered flow of cards */
.flow { list-style: none; margin: 0; padding: 0; counter-reset: flow; display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr)); }
.flow h4 { display: flex; align-items: center; gap: .55em; }
.flow h4::before {
  counter-increment: flow; content: counter(flow);
  flex: none; width: 28px; height: 28px; display: grid; place-items: center;
  font-size: .85rem; font-weight: 900; color: #1b1a1f;
  background: var(--c, var(--sage)); border: 2px solid #1b1a1f; border-radius: 50%;
}
.card h4 + p { margin-top: .2em; }

/* impact scale */
.meter { margin-top: .4rem; }
.meter-bar, .meter-ticks { display: grid; grid-template-columns: 1.5fr 3.5fr 8fr 4fr; }
.meter-bar {
  height: 42px; overflow: hidden;
  border: var(--stroke) solid #1b1a1f; border-radius: 12px; box-shadow: 4px 4px 0 var(--shadow);
}
.meter-bar span + span { border-left: 2px solid #1b1a1f; }
.meter-ticks { font: 700 .8rem ui-monospace, "Cascadia Code", Consolas, monospace; color: var(--muted); margin-top: .45rem; }
.legend { list-style: none; padding: 0; margin: 1.2rem 0 0; display: grid; gap: .55em; }
.legend li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; align-items: baseline; }
.legend i { width: 16px; height: 16px; border-radius: 4px; border: 2px solid #1b1a1f; transform: translateY(2px); }

/* chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: .8rem 0 0; }
.chips li {
  font: 700 .8rem ui-monospace, "Cascadia Code", Consolas, monospace;
  border: 2px solid var(--line); border-radius: 8px; padding: .15em .6em; background: var(--surface);
}
.chips li.on { background: var(--gold); color: #1b1a1f; border-color: #1b1a1f; }

/* ability equation */
.equation { display: flex; flex-wrap: wrap; align-items: stretch; gap: 14px; }
.equation .card { flex: 1 1 200px; }
.equation .op { align-self: center; font-size: 2rem; font-weight: 900; line-height: 1; }
@media (max-width: 640px) { .equation .op { width: 100%; text-align: center; } }

/* spells */
.spells { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(min(310px, 100%), 1fr)); }
.spell { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.spell .art { background: #221d33; border-bottom: var(--stroke) solid var(--line); }
.spell .art svg { display: block; width: 100%; height: auto; }
.spell .body { padding: 1.1rem 1.3rem 1.3rem; }
.spell dl { display: grid; grid-template-columns: auto 1fr; gap: .3em .9em; margin: .4rem 0 1rem; font-size: .92rem; }
.spell dt { font-weight: 800; }
.spell dd { margin: 0; color: var(--muted); }
.spell ul, .card ul.plain { margin: 0; padding-left: 1.1em; color: var(--muted); font-size: .95rem; }
.spell li, .card ul.plain li { margin-bottom: .35em; }

/* ---------- legal pages ---------- */
.legal { max-width: 760px; }
.legal h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); }
.legal h2 { font-size: 1.35rem; margin-top: 2rem; }
.legal address { font-style: normal; }
.legal ul { padding-left: 1.2em; }