/* ============================================================================
   Phase Walkthrough — shared engine styles
   Companion to the Delivery Standard. Same palette as the main site
   (index.html), with more room to breathe and larger display type so the
   pages read as a story rather than a spec. System fonts only — no webfont
   dependency, matching the rest of the site.
   Reused across every phase walkthrough; per-phase pages supply only content.
   ============================================================================ */

:root {
  --ink: #1a2332;
  --ink-soft: #46556b;
  --ink-faint: #7a8699;
  --accent: #0f5c8c;
  --accent-deep: #11314e;
  --accent-soft: #e8f1f7;
  --rule: #d8dee8;
  --rule-soft: #e7ebf1;
  --bg: #f7f8fa;
  --paper: #fbfaf7;        /* subtle warmth for story sections */
  --card: #ffffff;
  --mono-bg: #0f1722;
  --mono-ink: #d6e2f0;
  --high: #b3372f;
  --med: #b07a1e;
  --low: #2e7d4f;
  --shadow: 0 1px 2px rgba(16,32,54,.04), 0 8px 24px rgba(16,32,54,.06);
  --shadow-lg: 0 12px 40px rgba(16,32,54,.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

a { color: var(--accent); }

.wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---- shared top bar (mirrors index.html) ---------------------------------- */
.topbar { display: flex; align-items: center; gap: 2px; background: #0d2438; padding: 0 14px; font-size: 13.5px; flex-wrap: wrap; }
.topbar a { color: #cfe2f1; text-decoration: none; padding: 12px 14px; display: inline-block; }
.topbar a:hover { background: rgba(255,255,255,.09); color: #fff; }
.topbar a.home { font-weight: 700; color: #fff; }
.topbar a.active { color: #fff; box-shadow: inset 0 -3px 0 #5ea9d6; }
.topbar .ref { position: relative; }
.topbar .ref summary { list-style: none; cursor: pointer; padding: 12px 14px; color: #cfe2f1; }
.topbar .ref summary::-webkit-details-marker { display: none; }
.topbar .ref summary.active { color: #fff; box-shadow: inset 0 -3px 0 #5ea9d6; }
.topbar .ref[open] summary { background: rgba(255,255,255,.09); color: #fff; }
.topbar .ref .menu { position: absolute; left: 0; top: 100%; z-index: 60; background: #0d2438; border: 1px solid #07151f; border-radius: 0 0 8px 8px; min-width: 200px; padding: 6px 0; box-shadow: 0 8px 20px rgba(0,0,0,.25); }
.topbar .ref .menu a { display: block; padding: 9px 16px; }

/* ---- scroll progress bar -------------------------------------------------- */
.progress { position: sticky; top: 0; z-index: 50; height: 3px; background: transparent; }
.progress .bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), #5ea9d6); transition: width .1s linear; }

/* ---- page masthead -------------------------------------------------------- */
.masthead { background: linear-gradient(135deg, var(--accent-deep), var(--accent)); color: #fff; }
.masthead .wrap { padding: 40px 24px 30px; }
.masthead .crumbs { font-size: 13px; color: #9fc3dd; margin: 0 0 14px; }
.masthead .crumbs a { color: #cfe2f1; text-decoration: none; }
.masthead .crumbs a:hover { color: #fff; text-decoration: underline; }
.masthead .eyebrow { font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; color: #9fc3dd; margin: 0 0 8px; }
.masthead h1 { margin: 0; font-size: 38px; line-height: 1.1; letter-spacing: -0.5px; }
.masthead h1 .sub { display: block; font-size: 19px; font-weight: 500; color: #cfe2f1; margin-top: 10px; letter-spacing: 0; max-width: 60ch; }

/* ---- view toggle (Story | Reference) -------------------------------------- */
.viewbar { background: var(--card); border-bottom: 1px solid var(--rule); position: sticky; top: 3px; z-index: 40; }
.viewbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 24px; }
.toggle { display: inline-flex; gap: 2px; background: transparent; border: 0; border-bottom: 1px solid var(--rule); padding: 0; }
.toggle button {
  appearance: none; border: 0; background: transparent; cursor: pointer;
  font: inherit; font-size: 14px; font-weight: 600; color: var(--ink-soft);
  padding: 6px 14px; border-bottom: 2px solid transparent; margin-bottom: -1px;
  white-space: nowrap; transition: color .15s, border-color .15s;
}
.toggle button[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.toggle button:hover { color: var(--ink); }
.toggle button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
.viewbar .hint { font-size: 13px; color: var(--ink-faint); }
.viewbar .hint kbd { font: inherit; font-size: 12px; background: #eef2f7; border: 1px solid var(--rule); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; }

/* ---- track visibility ----------------------------------------------------- */
.track { display: none; }
.track.active { display: block; }

/* ---- generic story section ------------------------------------------------ */
.s { padding: 64px 0; }
.s.paper { background: var(--paper); border-top: 1px solid var(--rule-soft); border-bottom: 1px solid var(--rule-soft); }
.kicker { font-size: 13px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; font-weight: 700; }
.s h2 { font-size: 30px; line-height: 1.15; letter-spacing: -0.4px; margin: 0 0 16px; }
.s h3 { font-size: 20px; margin: 28px 0 10px; }
.s p { font-size: 17px; max-width: 68ch; }
.s p.lead { font-size: 21px; line-height: 1.5; color: var(--ink); max-width: 64ch; }
.dim { color: var(--ink-soft); }

/* ---- cold open hook ------------------------------------------------------- */
.hook { background: var(--mono-bg); color: var(--mono-ink); }
.hook .wrap { padding: 72px 24px; }
.hook .big { font-size: 30px; line-height: 1.35; font-weight: 500; letter-spacing: -0.3px; max-width: 26ch; margin: 0; color: #eaf2fb; }
.hook .big strong { color: #fff; }
.hook .sig { margin-top: 22px; font-size: 15px; color: #8fb4d4; }

/* ---- cast cards ----------------------------------------------------------- */
.cast { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.cast .group h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .6px; color: var(--ink-soft); margin: 0 0 12px; }
.cast .person { display: flex; gap: 12px; align-items: baseline; padding: 9px 0; border-bottom: 1px dashed var(--rule); }
.cast .person:last-child { border-bottom: 0; }
.cast .person .nm { font-weight: 700; min-width: 96px; }
.cast .person .rl { font-size: 14px; color: var(--ink-soft); }

/* ---- the four questions --------------------------------------------------- */
.fourq { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; counter-reset: q; }
.fourq .q { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 20px; box-shadow: var(--shadow); position: relative; }
.fourq .q::before { counter-increment: q; content: counter(q); position: absolute; top: 14px; right: 18px; font-size: 38px; font-weight: 800; color: var(--accent-soft); line-height: 1; }
.fourq .q h4 { margin: 0 0 6px; font-size: 16px; color: var(--accent); padding-right: 36px; }
.fourq .q p { margin: 0; font-size: 14.5px; color: var(--ink-soft); }

/* ---- timeline stepper ----------------------------------------------------- */
.tl { margin-top: 8px; }
.tl-rail { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 22px; }
.tl-rail button {
  appearance: none; cursor: pointer; font: inherit; font-size: 13px; font-weight: 600;
  color: var(--ink-soft); background: var(--card); border: 1px solid var(--rule);
  border-radius: 8px; padding: 7px 11px; transition: all .15s;
}
.tl-rail button:hover { border-color: var(--accent); color: var(--accent); }
.tl-rail button[aria-current="true"] { background: var(--accent); color: #fff; border-color: var(--accent); }
.tl-rail button.visited:not([aria-current="true"]) { border-color: #bcd7e8; color: var(--accent); }
.tl-rail button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* when JS is active, only one step shows at a time */
.js-stepper .tl-step { display: none; }
.js-stepper .tl-step.active { display: block; animation: fade .35s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.tl-step { background: var(--card); border: 1px solid var(--rule); border-radius: 14px; padding: 26px 28px; box-shadow: var(--shadow); }
.tl-step .day { font-size: 13px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--accent); }
.tl-step .date { color: var(--ink-faint); font-weight: 500; letter-spacing: 0; text-transform: none; }
.tl-step h3 { margin: 4px 0 14px; font-size: 24px; letter-spacing: -0.3px; }
.tl-step p { font-size: 16px; max-width: 64ch; }
.tl-step.beat { border-left: 4px solid var(--med); }

/* tooling line */
.tooling { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 16px 0; font-size: 13px; }
.tooling .label { color: var(--ink-faint); text-transform: uppercase; letter-spacing: .5px; font-weight: 700; }
.cmd { font-family: "Cascadia Code", "Consolas", ui-monospace, monospace; font-size: 13px; background: var(--mono-bg); color: var(--mono-ink); padding: 3px 9px; border-radius: 6px; white-space: nowrap; }
.cmd .arrow { color: #7fa9cc; padding: 0 2px; }
.cmd .script { color: #a9c9e6; }
.tooling .none { font-style: italic; color: var(--ink-faint); }

/* artifacts produced */
.artifacts { margin: 16px 0 0; display: flex; flex-wrap: wrap; gap: 7px; }
.artifacts .lbl { font-size: 12px; text-transform: uppercase; letter-spacing: .5px; color: var(--ink-faint); font-weight: 700; width: 100%; margin-bottom: 2px; }
.tag { font-size: 12.5px; padding: 3px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); border: 1px solid #cfe1ee; }
.tag.green { background: #e7f3ec; color: var(--low); border-color: #bfe0cb; }
/* amber = the method requires this artifact; no tool emits it. A human writes the receipt. */
.tag.amber { background: #fbf3e2; color: var(--med); border-color: #e8d3a8; }
.tag .who { font-weight: 700; opacity: .72; margin-right: 5px; }

/* ---- the handoff chain (artifact-flow page) -------------------------------- */
.chain { display: flex; flex-wrap: wrap; align-items: stretch; gap: 0; margin: 26px 0; }
.chain .link { flex: 1 1 150px; min-width: 150px; background: var(--card); border: 1px solid var(--rule);
  border-radius: 12px; padding: 14px 16px; margin-right: 26px; position: relative; box-shadow: var(--shadow); }
.chain .link:last-child { margin-right: 0; }
.chain .link::after { content: "\2192"; position: absolute; right: -20px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-size: 19px; font-weight: 700; }
.chain .link:last-child::after { content: ""; }
.chain .link .ph { font-size: 11px; font-weight: 800; letter-spacing: .6px; text-transform: uppercase; color: var(--ink-faint); }
.chain .link .doc { font-family: "Cascadia Code", "Consolas", ui-monospace, monospace; font-size: 12.5px;
  color: var(--accent-deep); margin-top: 6px; word-break: break-word; }
.chain .link.terminal { background: #f2f9f4; border-color: #bfe0cb; }
.chain .link.terminal::after { content: ""; }
@media (max-width: 900px) {
  .chain .link { margin-right: 0; margin-bottom: 26px; }
  .chain .link::after { content: "\2193"; right: 50%; top: auto; bottom: -22px; transform: translateX(50%); }
}

.tl-nav { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; gap: 12px; }
.tl-nav button {
  appearance: none; cursor: pointer; font: inherit; font-weight: 600; font-size: 15px;
  padding: 10px 20px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: #fff;
}
.tl-nav button.ghost { background: transparent; color: var(--accent); }
.tl-nav button:disabled { opacity: .4; cursor: default; }
.tl-nav button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tl-nav .count { font-size: 14px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }

/* ---- contradiction collision --------------------------------------------- */
.collide { display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: stretch; margin: 8px 0 18px; }
.collide .doc { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 18px 20px; box-shadow: var(--shadow); }
.collide .doc .src { font-size: 12px; font-weight: 700; letter-spacing: .4px; text-transform: uppercase; color: var(--high); margin-bottom: 8px; }
.collide .doc blockquote { margin: 0; font-size: 15.5px; font-style: italic; color: var(--ink); }
.collide .vs { display: flex; align-items: center; justify-content: center; font-weight: 800; color: var(--high); font-size: 18px; }
.resolution { background: #e7f3ec; border: 1px solid #bfe0cb; border-left: 4px solid var(--low); border-radius: 10px; padding: 16px 20px; }
.resolution .src { font-size: 12px; font-weight: 700; letter-spacing: .4px; text-transform: uppercase; color: var(--low); margin-bottom: 6px; }
.resolution p { margin: 0; font-size: 16px; }

/* ---- metric block --------------------------------------------------------- */
.metric { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; background: var(--card); border: 1px solid var(--rule); border-radius: 14px; padding: 24px 28px; box-shadow: var(--shadow); }
.metric .num { font-size: 46px; font-weight: 800; letter-spacing: -1px; line-height: 1; }
.metric .num.base { color: var(--high); }
.metric .num.target { color: var(--low); }
.metric .to { font-size: 28px; color: var(--ink-faint); }
.metric .cap { font-size: 13px; color: var(--ink-soft); }

/* ---- aha / callout boxes -------------------------------------------------- */
.aha { background: var(--accent-soft); border: 1px solid #cfe1ee; border-left: 4px solid var(--accent); border-radius: 10px; padding: 18px 22px; margin: 24px 0; }
.aha .lbl { font-size: 12px; font-weight: 800; letter-spacing: .8px; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }
.aha p { margin: 0; font-size: 16px; max-width: none; }
/* warning variant — "what breaks if you skip this" */
.aha.warn { background: #fbeeec; border-color: #e8c4bf; border-left-color: var(--high); }
.aha.warn .lbl { color: var(--high); }

/* ---- module number badge -------------------------------------------------- */
.modnum { display: inline-block; font-size: 13px; font-weight: 800; letter-spacing: .5px; color: #fff; background: var(--accent); border-radius: 999px; padding: 3px 12px; margin: 0 0 14px; }
.s.paper .modnum { background: var(--accent-deep); }

/* ---- compare grid (two or three columns) ---------------------------------- */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 22px 0; }
.compare.three { grid-template-columns: repeat(3, 1fr); }
.compare .col { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 20px 22px; box-shadow: var(--shadow); }
.compare .col h4 { margin: 0 0 4px; font-size: 17px; color: var(--accent); }
.compare .col .tagline { font-size: 13px; color: var(--ink-faint); margin: 0 0 12px; }
.compare .col.alt h4 { color: var(--med); }
.compare .col.bad { border-color: #e8c4bf; }
.compare .col.bad h4 { color: var(--high); }
.compare .col ul { margin: 0; padding-left: 18px; font-size: 15px; }
.compare .col li { margin-bottom: 6px; }
@media (max-width: 760px) { .compare, .compare.three { grid-template-columns: 1fr; } }

/* ---- concept | example pairing -------------------------------------------- */
/* Left = the abstract idea (cool/blue). Right = the real Harbor instance
   (warm/amber). The colour contrast itself signals "concept vs reality". */
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 24px 0; align-items: stretch; }
.pair > div { border-radius: 14px; padding: 22px 24px; box-shadow: var(--shadow); }
.pair .idea { background: var(--card); border: 1px solid var(--rule); }
.pair .eg { background: #fbf6ec; border: 1px solid #ecdcbf; }
.pair .plabel { font-size: 12px; font-weight: 800; letter-spacing: .6px; text-transform: uppercase; margin: 0 0 12px; display: flex; align-items: center; gap: 7px; }
.pair .idea .plabel { color: var(--accent); }
.pair .eg .plabel { color: #9a6a14; }
.pair .eg .plabel::before { content: ""; width: 8px; height: 8px; background: var(--med); transform: rotate(45deg); display: inline-block; }
.pair p { font-size: 15.5px; max-width: none; margin: 0 0 12px; }
.pair p:last-child { margin-bottom: 0; }
.pair ul, .pair ol { font-size: 15px; margin: 8px 0 0; padding-left: 20px; }
.pair li { margin-bottom: 7px; }
.pair li:last-child { margin-bottom: 0; }

/* document / decision snippets inside an example panel */
.snippet { background: #fff; border: 1px solid #e7d9bb; border-left: 3px solid var(--med); border-radius: 8px; padding: 11px 14px; margin: 12px 0 0; }
.snippet .from { font-size: 11px; text-transform: uppercase; letter-spacing: .4px; color: var(--ink-faint); margin-bottom: 5px; }
.snippet blockquote { margin: 0; font-size: 14.5px; font-style: italic; color: var(--ink); }
.snippet.resolve { border-left-color: var(--low); background: #f3f9f5; border-color: #cfe6d6; }
.snippet.resolve .from { color: var(--low); }
.eg .decision { background: #fff; border: 1px solid #e7d9bb; border-radius: 8px; padding: 12px 15px; margin-top: 12px; }
.eg .bigstat { font-size: 30px; font-weight: 800; letter-spacing: -0.5px; color: var(--accent-deep); margin-top: 12px; line-height: 1.1; }
.eg .bigstat .b { color: var(--high); }
.eg .bigstat .t { color: var(--low); }
.eg .bigstat small { display: block; font-size: 13px; font-weight: 500; color: var(--ink-soft); margin-top: 4px; letter-spacing: 0; }

@media (max-width: 760px) { .pair { grid-template-columns: 1fr; } }

/* ---- "go deeper" progressive disclosure (the full method, on demand) ------ */
.deeper { margin-top: 20px; border-top: 1px dashed var(--rule); }
.deeper > summary { cursor: pointer; list-style: none; padding: 13px 0 3px; font-size: 14px; font-weight: 700; letter-spacing: .3px; color: var(--accent); display: flex; align-items: center; gap: 9px; }
.deeper > summary::-webkit-details-marker { display: none; }
.deeper > summary::before { content: "\25B8"; font-size: 12px; transition: transform .15s ease; }
.deeper[open] > summary::before { transform: rotate(90deg); }
.deeper > summary:hover { color: var(--accent-deep); }
.deeper .deeper-body { padding: 10px 0 4px; }
.deeper .deeper-body > :first-child { margin-top: 0; }
.deeper .deeper-body p { font-size: 15.5px; max-width: 72ch; }
.deeper .deeper-body h3 { font-size: 17px; margin: 18px 0 8px; }
@media (prefers-reduced-motion: reduce) { .deeper > summary::before { transition: none; } }

/* ---- exit gate checklist -------------------------------------------------- */
.gate { list-style: none; margin: 0; padding: 0; }
.gate li { display: flex; gap: 14px; align-items: flex-start; background: var(--card); border: 1px solid var(--rule); border-radius: 10px; padding: 14px 18px; margin-bottom: 10px; cursor: pointer; transition: border-color .15s, background .15s; }
.gate li:hover { border-color: var(--accent); }
.gate li .box { flex: 0 0 22px; width: 22px; height: 22px; border: 2px solid var(--rule); border-radius: 6px; margin-top: 1px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 14px; font-weight: 800; transition: all .15s; }
.gate li.checked { background: #f2f9f4; border-color: #bfe0cb; }
.gate li.checked .box { background: var(--low); border-color: var(--low); }
.gate li .txt { font-size: 16px; }
.gate li.teeth .txt::after { content: " billing teeth"; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--med); background: #fbf3e2; border: 1px solid #ecd9b0; border-radius: 999px; padding: 1px 8px; margin-left: 8px; white-space: nowrap; }

/* ---- next / close --------------------------------------------------------- */
.next { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 10px; }
.next a { display: block; background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 20px 22px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); transition: border-color .15s, transform .15s; }
.next a:hover { border-color: var(--accent); transform: translateY(-2px); }
.next a .t { font-weight: 700; color: var(--accent); font-size: 16px; }
.next a .d { font-size: 14px; color: var(--ink-soft); margin-top: 4px; }

/* ---- glossary tooltip terms ----------------------------------------------- */
.term { border-bottom: 1px dashed var(--accent); cursor: pointer; }
.term:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#tip { position: fixed; z-index: 200; max-width: 300px; background: var(--mono-bg); color: var(--mono-ink); font-size: 13.5px; line-height: 1.5; padding: 11px 14px; border-radius: 9px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transition: opacity .12s; }
#tip.show { opacity: 1; }
#tip .t { color: #fff; font-weight: 700; display: block; margin-bottom: 3px; }

/* ---- reference track styling ---------------------------------------------- */
.ref-doc h2 { font-size: 26px; margin: 44px 0 14px; letter-spacing: -0.3px; }
.ref-doc h2:first-child { margin-top: 0; }
.ref-doc h3 { font-size: 18px; margin: 24px 0 8px; }
.ref-doc p { font-size: 16px; max-width: 70ch; }
.ref-doc table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14.5px; }
.ref-doc th, .ref-doc td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.ref-doc th { color: var(--ink-soft); font-size: 12.5px; text-transform: uppercase; letter-spacing: .4px; border-bottom: 2px solid var(--rule); }
.ref-doc tr:hover td { background: var(--paper); }
.ref-doc ul { font-size: 16px; max-width: 70ch; }
.ref-doc li { margin-bottom: 6px; }
.ref-doc .note { background: var(--accent-soft); border-left: 3px solid var(--accent); border-radius: 0 8px 8px 0; padding: 12px 18px; margin: 16px 0; font-size: 15px; }

/* ---- footer --------------------------------------------------------------- */
footer.foot { padding: 30px 0 48px; color: var(--ink-soft); font-size: 13px; border-top: 1px solid var(--rule); margin-top: 8px; }
footer.foot a { color: var(--accent); }

/* ---- scroll reveal -------------------------------------------------------- */
/* Content is visible by default. The hidden-then-animate state only applies
   once JS adds .js-anim to <html> (and only when motion is allowed), so a
   failed/absent observer can never leave content invisible. */
.reveal { transition: opacity .6s ease, transform .6s ease; }
.js-anim .reveal { opacity: 0; transform: translateY(18px); }
.js-anim .reveal.in { opacity: 1; transform: none; }

/* ---- responsive ----------------------------------------------------------- */
@media (max-width: 760px) {
  .masthead h1 { font-size: 28px; }
  .hook .big { font-size: 23px; }
  .s h2 { font-size: 24px; }
  .cast { grid-template-columns: 1fr; }
  .collide { grid-template-columns: 1fr; }
  .collide .vs { padding: 4px 0; }
  .viewbar .hint { display: none; }
}

/* ---- reduced motion ------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .js-stepper .tl-step.active { animation: none; }
  .next a:hover { transform: none; }
}