/* =============================================================================
   Twilight Imperium 2nd Edition — Setup & Reference Utility
   Styled after the Rules of Play booklet (FFG, 2000) and its box lid:
   · white pages and black type — Times body, squared Neuropol-style headings (Rules pp.2–19);
   · the running head "Twilight Imperium 2nd Edition: Rules of Play" / "Pax Magnifica Bellum Gloriosum";
   · the cover: a grey lion under white extended capitals (Rules p.1); the box lid's flame-gradient logo;
   · the back cover's black-framed title box and bordered text boxes with round domain counters (Rules p.20);
   · grey star-flecked "Diagram" plates and hex maps — black hexes are home systems (Rules pp.4–5);
   · the race sidebars: a colour oval portrait over a halftone-screened box (Rules pp.6, 9, 10, 12, 14, 17);
   · the Hope's End technology tree's black title bars (Hope's End p.4);
   · the battle scene along the foot of every page.
   Colours sampled from the scans: paper #ffffff, Diagram grey #dddddd, halftone ≈ #e9e9e9; flame logo
   red→orange→yellow and motto gold from the box lid.
   ============================================================================= */

/* Audiowide's "&" reads as an "E" ("Races & Supplies"): borrow a plain bold "&" from a system sans for that one
   character (falls back to Audiowide's own where none of these exist). */
@font-face {
  font-family: "TI2 Amp";
  src: local("Trebuchet MS Bold"), local("TrebuchetMS-Bold"), local("Arial Bold"), local("Arial-BoldMT"),
       local("Helvetica Bold"), local("Helvetica-Bold"), local("Roboto Bold"), local("Roboto-Bold");
  unicode-range: U+0026;
}

:root {
  --paper:      #ffffff;   /* rulebook page (sampled) */
  --ink:        #141414;   /* type and box rules */
  --ink-2:      #333333;   /* secondary text: 12.6:1 on paper */
  --ink-3:      #4d4d4d;   /* citations, hints: 8.4:1 on paper, 6.6:1 on --plate */
  --line:       #595959;   /* unselected control borders: 7:1 on paper, 5.5:1 on --plate */
  --rule-soft:  #c4c4c4;   /* table row rules (decorative) */
  --plate:      #e6e6e6;   /* the grey Diagram plates (sampled #dddddd, lifted for text) */
  --tint:       #f1f1f1;   /* hover / table head */
  --night:      #161616;   /* the cover plate */
  --sel:        #fff5cc;   /* selected fill: a pale wash of the logo's yellow */
  --flame-1:    #d4260f;   /* box-lid logo gradient (sampled, top → bottom) */
  --flame-2:    #f2560b;
  --flame-3:    #ff9a13;
  --flame-4:    #ffd21b;
  --gold:       #f0c14b;   /* "Pax Magnifica" gold on the lid's dark bar */
  --imperial:   #9c1c10;   /* deep logo red: Hope's End tags */
  --focus:      #1c4fc4;   /* the lid's space blue: focus rings (6.9:1 on paper) */

  --f-display: "TI2 Amp", "Audiowide", "Neuropol", "Eurostile", "Microgramma", "Arial Black", sans-serif;
  --f-body:    "STIX Two Text", "Times New Roman", Times, Georgia, serif;

  --wrap: 1080px;
  /* flat-topped hexes, as drawn in the rulebook's galaxy diagrams (black = home system) */
  --hex: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 20'%3E%3Cpath d='M21.2 10 16.1 18.83H5.9L.8 10 5.9 1.17h10.2z' fill='%23141414'/%3E%3C/svg%3E");
  --hex-open: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 20'%3E%3Cpath d='M20.2 10 15.6 17.95H6.4L1.8 10 6.4 2.05h9.2z' fill='%23fff' stroke='%23141414' stroke-width='1.8' stroke-linejoin='round'/%3E%3C/svg%3E");
  --hex-white: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 20'%3E%3Cpath d='M21.2 10 16.1 18.83H5.9L.8 10 5.9 1.17h10.2z' fill='%23fff'/%3E%3C/svg%3E");
  /* Mecatol Rex (dark) in its first ring (grey), after Diagram Two (Rules p.4) */
  --galaxy: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-26.5 -27 53 54'%3E%3Cg stroke='%23141414' stroke-width='1.7' stroke-linejoin='round'%3E%3Cpath d='M10.00 0.00 5.00 8.66 -5.00 8.66 -10.00 0.00 -5.00 -8.66 5.00 -8.66Z' fill='%234d4d4d'/%3E%3Cpath d='M10.00 -17.32 5.00 -8.66 -5.00 -8.66 -10.00 -17.32 -5.00 -25.98 5.00 -25.98Z' fill='%23c4c4c4'/%3E%3Cpath d='M10.00 17.32 5.00 25.98 -5.00 25.98 -10.00 17.32 -5.00 8.66 5.00 8.66Z' fill='%23c4c4c4'/%3E%3Cpath d='M25.00 -8.66 20.00 0.00 10.00 0.00 5.00 -8.66 10.00 -17.32 20.00 -17.32Z' fill='%23c4c4c4'/%3E%3Cpath d='M25.00 8.66 20.00 17.32 10.00 17.32 5.00 8.66 10.00 0.00 20.00 0.00Z' fill='%23c4c4c4'/%3E%3Cpath d='M-5.00 -8.66 -10.00 0.00 -20.00 0.00 -25.00 -8.66 -20.00 -17.32 -10.00 -17.32Z' fill='%23c4c4c4'/%3E%3Cpath d='M-5.00 8.66 -10.00 17.32 -20.00 17.32 -25.00 8.66 -20.00 0.00 -10.00 0.00Z' fill='%23c4c4c4'/%3E%3C/g%3E%3C/svg%3E");
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; }
b, strong { font-weight: 700; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.vh {
  position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; border: 0;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

/* ---- masthead: running head + the cover ------------------------------------ */
.runhead {
  max-width: var(--wrap); margin: 0 auto; padding: 14px 24px 9px;
  display: flex; justify-content: space-between; gap: 18px;
  font-size: 13px; line-height: 1.3; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--ink-2);
}

.cover {
  position: relative; isolation: isolate;
  max-width: calc(var(--wrap) - 48px); margin: 0 auto;
  min-height: 318px;
  display: flex; align-items: center;
  background-color: var(--night);
  background-image:
    radial-gradient(1.4px 1.4px at 9% 18%, rgba(255, 255, 255, 0.85) 60%, transparent 70%),
    radial-gradient(1px 1px at 23% 74%, rgba(255, 255, 255, 0.7) 60%, transparent 70%),
    radial-gradient(1.2px 1.2px at 37% 12%, rgba(255, 255, 255, 0.6) 60%, transparent 70%),
    radial-gradient(1px 1px at 46% 88%, rgba(255, 255, 255, 0.55) 60%, transparent 70%),
    radial-gradient(1.6px 1.6px at 3% 62%, rgba(255, 255, 255, 0.7) 60%, transparent 70%),
    radial-gradient(1px 1px at 31% 44%, rgba(255, 255, 255, 0.45) 60%, transparent 70%),
    radial-gradient(ellipse 70% 90% at 78% 45%, #3a3a3a 0%, #232323 45%, transparent 75%),
    linear-gradient(180deg, #1d1d1d 0%, #111111 100%);
  border: 2px solid #000;
  outline: 1px solid var(--ink); outline-offset: 5px;   /* the cover's thin frame inside the page margin */
  overflow: hidden;
}
.cover-art {
  position: absolute; z-index: -1; top: 0; right: 0; bottom: 0;
  width: 62%; height: 100%;
  object-fit: cover; object-position: 50% 42%;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.55) 22%, #000 46%);
          mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.55) 22%, #000 46%);
}
.cover-text { position: relative; width: min(560px, 58%); padding: 34px 0 30px 36px; }
.brand { margin: 0; font-weight: 400; line-height: 1; }
.logo { display: block; width: 100%; height: auto; overflow: visible; filter: drop-shadow(0 3px 0 rgba(0, 0, 0, 0.55)); }
.brand-sub {
  display: block; margin-top: 18px;
  font-family: var(--f-display); font-weight: 400;
  font-size: clamp(1.3rem, 2.7vw, 2.05rem); line-height: 1.1; letter-spacing: 0.07em; text-transform: uppercase;
  color: #ffffff;
  text-shadow: 0 2px 0 #000, 0 0 18px rgba(0, 0, 0, 0.8);
}
.cover-kicker {
  display: flex; flex-wrap: wrap; align-items: center; column-gap: 0.7em; row-gap: 2px;
  margin-top: 14px;
  font-size: 13px; font-weight: 700; line-height: 1.4; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold);
}
.cover-kicker span { white-space: nowrap; }
.cover-kicker i { font-style: normal; font-size: 0.7em; color: var(--flame-2); }

/* ---- layout ---------------------------------------------------------------- */
main { max-width: var(--wrap); margin: 0 auto; padding: 0 24px 34px; }
.intro { margin: 30px 0 4px; }
.tagline { max-width: 74ch; font-size: 1.0625rem; color: var(--ink); }
.tagline em { color: var(--ink-2); }

.sec { margin-top: 46px; }
/* section headings: the back cover's black-framed title box ("Distant Suns Domain Effects", Rules p.20) */
.sec > h2 {
  font-family: var(--f-display); font-weight: 400;
  font-size: clamp(1.3rem, 2.4vw, 1.7rem); line-height: 1.15; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink);
  background: var(--paper) var(--galaxy) no-repeat right 18px center / auto 36px;
  border: 4px solid var(--ink);
  padding: 13px 76px 11px 20px;
  margin: 0 0 12px;
}
.sec-note { max-width: 75ch; font-size: 1rem; font-style: italic; color: var(--ink-2); margin-bottom: 18px; }

/* ---- configurator: a grey Diagram plate ------------------------------------ */
.cfg {
  display: flex; flex-direction: column; gap: 20px;
  padding: 20px 22px 22px;
  background-color: var(--plate);
  background-image:
    radial-gradient(1.3px 1.3px at 7% 22%, #ffffff 60%, transparent 70%),
    radial-gradient(1px 1px at 38% 71%, #ffffff 60%, transparent 70%),
    radial-gradient(1.5px 1.5px at 64% 14%, #ffffff 60%, transparent 70%),
    radial-gradient(1px 1px at 88% 58%, #ffffff 60%, transparent 70%),
    radial-gradient(1.2px 1.2px at 52% 93%, #ffffff 60%, transparent 70%);
  background-size: 340px 220px;
  border: 2px solid var(--ink);
}
.cfg-group + .cfg-group { border-top: 1px dashed #8c8c8c; padding-top: 18px; }
.cfg-label {
  font-family: var(--f-display); font-size: 0.875rem; line-height: 1.3;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink);
  margin-bottom: 10px;
}
.cfg-label .hint {
  display: block; margin-top: 3px;
  font-family: var(--f-body); font-style: italic; font-size: 1rem; line-height: 1.4;
  letter-spacing: 0; text-transform: none; color: var(--ink-2);
}

.chips, .mods, .pbtns { display: flex; flex-wrap: wrap; gap: 10px; }
.mode-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); gap: 10px; }
.mods { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }

/* option boxes: the back cover's bordered text boxes; the token at left is the round domain counter */
.chip, .mode-btn, .mod {
  position: relative;
  display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-start;
  min-height: 56px; padding: 10px 16px 11px 50px;
  font: inherit; text-align: left; color: var(--ink);
  background: var(--paper);
  border: 1.5px solid var(--line); border-radius: 0;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, background-color 0.15s;
}
.chip:hover, .mode-btn:hover, .mod:hover { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.chip.on, .mode-btn.on, .mod.on {
  background: var(--sel);
  border-color: var(--ink);
  box-shadow: inset 0 0 0 2px var(--ink), 3px 3px 0 var(--ink);
}
.chip.lock { cursor: default; }
.chip.lock:hover { box-shadow: inset 0 0 0 2px var(--ink), 3px 3px 0 var(--ink); }

/* checkbox tokens (sets, rules options) */
.chip::before, .mod::before {
  content: ""; position: absolute; left: 14px; top: 13px;
  width: 24px; height: 24px;
  background: var(--paper);
  border: 2px solid var(--ink); border-radius: 4px;
  box-shadow: inset 0 0 0 2px var(--paper), inset 0 0 0 4px #bdbdbd;
}
.chip.on::before, .mod.on::before { background: var(--ink); box-shadow: none; }
.chip.on::after, .mod.on::after {
  content: ""; position: absolute; left: 23px; top: 16px;
  width: 7px; height: 13px;
  border-right: 3px solid var(--flame-4); border-bottom: 3px solid var(--flame-4);
  transform: rotate(45deg);
}
/* radio tokens (galaxy) */
.mode-btn::before {
  content: ""; position: absolute; left: 13px; top: 12px;
  width: 26px; height: 26px; border-radius: 50%;
  background: radial-gradient(circle, var(--paper) 52%, #bdbdbd 54%, #f4f4f4 66%, #8d8d8d 78%);
  border: 2px solid var(--ink);
}
.mode-btn.on::before { background: radial-gradient(circle, var(--flame-4) 30%, var(--ink) 33%); }

.chip b {
  font-size: 1.0625rem; line-height: 1.3; font-weight: 700;
}
.chip span { font-size: 0.9375rem; line-height: 1.35; color: var(--ink-2); }

.mode-btn b {
  display: block; margin-bottom: 3px;
  font-family: var(--f-display); font-weight: 400; font-size: 0.9375rem; line-height: 1.3; letter-spacing: 0.03em;
}
.mode-btn span { display: block; font-size: 1rem; line-height: 1.4; color: var(--ink-2); }
.mode-btn.off, .mode-btn:disabled {
  cursor: not-allowed;
  background: #efefef; color: var(--ink-3);
  border: 1.5px dashed #6b6b6b; box-shadow: none;
}
.mode-btn.off::before, .mode-btn:disabled::before { background: #efefef; border: 2px dashed #6b6b6b; }
.mode-btn.off span, .mode-btn:disabled span { color: var(--ink-3); }
.mode-btn.off b::after, .mode-btn:disabled b::after {
  content: "Needs Hope's End"; display: inline-block; margin-left: 8px;
  font-family: var(--f-body); font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-3); border: 1px solid #6b6b6b; padding: 0 5px; vertical-align: 1px;
}

.mod-name { display: block; font-size: 1.0625rem; line-height: 1.3; font-weight: 700; margin-bottom: 3px; }
.mod-sum { display: block; font-size: 1rem; line-height: 1.4; color: var(--ink-2); }

/* player count: numbered counters */
.pbtn {
  width: 54px; height: 54px; border-radius: 50%;
  display: inline-grid; place-items: center;
  font-family: var(--f-display); font-size: 1.3rem; line-height: 1; color: var(--ink);
  background: radial-gradient(circle, var(--paper) 55%, #c9c9c9 57%, #f7f7f7 68%, #8a8a8a 80%, #5a5a5a 88%);
  border: 2px solid var(--ink);
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.15s;
}
.pbtn:hover { box-shadow: 0 0 0 3px var(--paper), 0 0 0 5px var(--line); }
.pbtn.on {
  color: var(--flame-4);
  background: radial-gradient(circle, var(--ink) 55%, #707070 57%, #e8e8e8 68%, #7a7a7a 80%, #3a3a3a 88%);
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 5px var(--ink);
}

/* ---- setup steps ------------------------------------------------------------ */
.phase { margin-top: 28px; }
.phase:first-child { margin-top: 18px; }
/* phase headings: the rulebook's squared section heads, with a black home-system hex */
.phase-title {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--f-display); font-weight: 400;
  font-size: 1.3rem; line-height: 1.25; letter-spacing: 0.01em;
  color: var(--ink); margin-bottom: 12px;
}
.phase-title::before {
  content: ""; flex: none; width: 23px; height: 21px;
  background: var(--hex) center / contain no-repeat;
}

.step {
  display: grid; grid-template-columns: 46px minmax(0, 1fr); gap: 0 16px;
  padding: 15px 20px 14px 15px; margin-bottom: 12px;
  background: var(--paper);
  border: 1px solid var(--ink);
}
/* step numbers: the back cover's bevelled domain counters */
.step-num {
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--f-body); font-weight: 700; font-size: 1.1875rem; line-height: 1; color: var(--ink);
  background: radial-gradient(circle, var(--paper) 54%, #c4c4c4 56%, #f7f7f7 67%, #8a8a8a 80%, #555555 90%);
  border: 2px solid var(--ink);
}
.step-body { min-width: 0; }
.step-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; margin: 2px 0 6px; }
.step-head h4 { font-size: 1.1875rem; line-height: 1.3; font-weight: 700; }
.step-text { max-width: 75ch; }
.step-text p { margin-bottom: 8px; }
.step-text b { font-weight: 700; }
.step-text i { color: var(--ink-2); }

/* lists: the rulebook's small square bullets and "1)" numbering */
.step-text ul, .ref-body ul, .teach-panel ul { list-style: none; margin: 6px 0 8px; }
.step-text ul > li, .ref-body ul > li, .teach-panel ul > li { position: relative; padding-left: 20px; margin-bottom: 6px; }
.step-text ul > li::before, .ref-body ul > li::before, .teach-panel ul > li::before {
  content: ""; position: absolute; left: 3px; top: 0.62em;
  width: 7px; height: 7px; background: var(--ink);
}
.step-text ol, .ref-body ol, .teach-panel ol { list-style: none; counter-reset: rb; margin: 6px 0 8px; }
.step-text ol > li, .ref-body ol > li, .teach-panel ol > li { counter-increment: rb; position: relative; padding-left: 28px; margin-bottom: 6px; }
.step-text ol > li::before, .ref-body ol > li::before, .teach-panel ol > li::before {
  content: counter(rb) ")"; position: absolute; left: 0; top: 0; font-weight: 700;
}
.step-text li ul, .ref-body li ul { margin-top: 4px; }
.step-text li ul > li::before, .ref-body li ul > li::before { background: transparent; border: 1.5px solid var(--ink); }

/* source tags: one look per box, distinguishable beyond colour */
.tag {
  display: inline-block; white-space: nowrap;
  font-family: var(--f-body); font-size: 0.8125rem; line-height: 1.35; font-weight: 700;
  letter-spacing: 0.09em; text-transform: uppercase;
  padding: 1px 8px 1px; border: 1.5px solid var(--ink); border-radius: 0;
}
.tag-core { background: var(--ink); color: #ffffff; }                          /* solid black: the base game */
.tag-he   { background: var(--imperial); color: #ffffff; border-color: var(--imperial); border-radius: 9px; }  /* red capsule: Hope's End */
.tag-opt  { background: var(--paper); color: var(--ink); border-style: dashed; } /* dashed outline: optional rule */
.tag-faq  { background: var(--plate); color: var(--ink); border-color: #6b6b6b; font-style: italic; } /* grey plate: FAQ ruling */

/* citations */
.src-line {
  margin-top: 10px; padding-top: 7px;
  border-top: 1px dotted #8c8c8c;
  font-size: 0.875rem; line-height: 1.45; color: var(--ink-3);
}
.src-line::before {
  content: "Source"; margin-right: 0.7em;
  font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink);
}

/* map diagrams inside steps and reference */
.figs { display: flex; flex-wrap: wrap; gap: 16px; margin: 12px 0 6px; }
.map-fig {
  flex: 0 1 300px; max-width: 100%;
  background: var(--paper); border: 1px solid var(--ink); padding: 8px 8px 10px;
}
.map-fig img { display: block; width: 100%; height: auto; }
.map-fig figcaption { font-size: 1rem; line-height: 1.5; margin-top: 8px; color: var(--ink-2); }

/* ---- teaching script: a race sidebar (oval portrait over a halftone box) ------ */
.teach-bar { margin: 4px 0 16px; }
#teachBtn, .teach-copy {
  min-height: 46px; padding: 10px 18px;
  font-family: var(--f-display); font-size: 0.9375rem; line-height: 1.2; letter-spacing: 0.04em;
  color: #ffffff; background: var(--ink);
  border: 2px solid var(--ink); border-radius: 8px;   /* the Hope's End tech-tree boxes */
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s, box-shadow 0.15s;
}
#teachBtn:hover, .teach-copy:hover { background: #3a3a3a; box-shadow: 0 0 0 3px var(--paper), 0 0 0 5px var(--ink); }
#teachBtn[aria-expanded="true"] { background: var(--sel); color: var(--ink); box-shadow: 3px 3px 0 var(--ink); }
#teachBtn[aria-expanded="true"]::after { content: " ▴"; }
#teachBtn[aria-expanded="false"]::after { content: " ▾"; }

.teach-panel {
  position: relative;
  margin: 104px 0 26px; padding: 108px 28px 22px;
  border: 2px solid #3c3c3c;
  background-color: var(--paper);
  background-image:
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0) 120px, #ffffff 200px),
    radial-gradient(circle at 2px 2px, #b4b4b4 0.95px, transparent 1.25px);
  background-size: 100% 100%, 4px 4px;
  box-shadow: 4px 4px 0 #cfcfcf;
}
.teach-panel::before {
  content: ""; position: absolute; top: -92px; left: 50%;
  width: 150px; height: 190px; transform: translateX(-50%);
  border-radius: 50%;
  background: #1c2350 url("../images/oval-hacan.webp") center / cover no-repeat;
  border: 3px solid var(--ink);
  box-shadow: 0 0 0 4px var(--paper), 0 0 0 5px #3c3c3c;
}
.teach-top { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; margin-bottom: 14px; }
.teach-top h3 { font-family: var(--f-display); font-weight: 400; font-size: 1.4rem; line-height: 1.25; color: var(--ink); }
.teach-copy { background: var(--paper); color: var(--ink); min-height: 42px; padding: 8px 16px; font-size: 0.875rem; }
.teach-copy:hover { background: var(--tint); }
/* one centred reading column (≈ 72 characters of the body face) under the portrait */
.teach-panel > :not(.teach-top) { max-width: 40rem; margin-left: auto; margin-right: auto; }
.teach-note {
  margin-bottom: 14px; padding-bottom: 12px;
  font-size: 1.0625rem; font-style: italic; color: var(--ink-2);
  border-bottom: 1px solid #9a9a9a;
}
.teach-note::first-letter {
  float: left; font-style: normal; font-weight: 400;
  font-size: 3.6em; line-height: 0.82; padding: 0.06em 0.09em 0 0; color: var(--ink);
}
.teach-panel h4 {
  margin-top: 20px; margin-bottom: 6px;
  font-family: var(--f-display); font-weight: 400; font-size: 1.0625rem; line-height: 1.3; letter-spacing: 0.01em;
  color: var(--ink);
}
.teach-panel p { margin-bottom: 10px; }
.teach-panel ul, .teach-panel ol { margin-top: 6px; margin-bottom: 10px; }
.teach-panel b { font-weight: 700; }

/* ---- reference: bordered boxes; an open box gets the tech tree's black title bar ---- */
.ref {
  background: var(--paper);
  border: 2px solid var(--ink);
  margin-bottom: 12px;
}
.ref summary {
  display: flex; align-items: center; gap: 12px;
  min-height: 52px; padding: 12px 16px;
  font-family: var(--f-display); font-weight: 400; font-size: 1.0625rem; line-height: 1.3; letter-spacing: 0.01em;
  color: var(--ink);
  cursor: pointer; list-style: none;
  transition: background-color 0.15s, color 0.15s;
}
.ref summary::-webkit-details-marker { display: none; }
.ref summary::before {
  content: ""; flex: none; width: 23px; height: 21px;
  background: var(--hex-open) center / contain no-repeat;
}
.ref summary::after {
  content: "+"; margin-left: auto; flex: none;
  width: 28px; height: 28px; display: grid; place-items: center;
  font-family: var(--f-display); font-size: 1.1rem; line-height: 1;
  border: 2px solid currentColor; border-radius: 50%;
}
.ref summary:hover { background: var(--tint); }
.ref[open] > summary { background: var(--ink); color: #ffffff; }
.ref[open] > summary::before { background-image: var(--hex-white); }
.ref[open] > summary::after { content: "−"; }
.ref[open] > summary:hover { background: #333333; }
.ref-body { padding: 16px 22px 18px; }
.ref-body > *:not(.tbl-wrap):not(.figs):not(.src-line) { max-width: 75ch; }
.ref-body h4 {
  margin: 18px 0 6px;
  font-size: 1rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink);
}
.ref-body h4:first-child { margin-top: 2px; }
.ref-body p { margin-bottom: 10px; }
.ref-body b { font-weight: 700; }
.ref-body i { color: var(--ink-2); }
.callout {
  background: var(--plate);
  border: 1px solid var(--ink); border-left-width: 6px;
  padding: 10px 14px; margin-bottom: 12px;
}
/* rulebook icons (css/icons.css): an empty icon slot where the source prints no symbol (the domain table's blank
   Lazax Survivors disc), and an icon row tucked under the bullet it illustrates */
.ref-body ul.aid-icons > li > .ic-none { flex: none; width: calc(var(--aid-ic-size, 32px) * 1.2); height: var(--aid-ic-size, 32px); }
.ref-body ul.aid-icons > li > .ic-none + * {
  flex: 1 1 auto; min-width: 0;
  padding-top: max(0px, calc((var(--aid-ic-size, 32px) - 1.5em) / 2));
}
.ref-body li > .aid-icon-row { margin: 8px 0 2px; }
/* the domain table's pale grey symbols and the Leader roundels need a little more size to read */
.ref-body .ds-icons, .ref-body .leader-icons { --aid-ic-size: 40px; }
/* technology-tree headings: the chart's type symbol (named by the Rules p.16 legend) before the colour chip; General
   has no named symbol, so it gets an empty slot that keeps the chips aligned */
.ref-body h4.tt-head { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; }
.ref-body h4.tt-head > .aid-ic, .ref-body h4.tt-head > .ic-none { flex: none; width: calc(var(--aid-ic-size, 32px) * 1.2); height: var(--aid-ic-size, 32px); }

/* tables: the back cover's "Unit Values" box */
.tbl-wrap { overflow-x: auto; margin: 8px 0 12px; -webkit-overflow-scrolling: touch; }
.tbl { border-collapse: collapse; width: 100%; font-size: 1rem; line-height: 1.5; border: 2px solid var(--ink); background: var(--paper); }
.tbl th, .tbl td { padding: 8px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--rule-soft); }
.tbl thead th {
  background: var(--tint);
  font-weight: 700; font-size: 1rem;
  text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 3px;
  border-bottom: 2px solid var(--ink);
}
.tbl tbody th { font-weight: 700; white-space: nowrap; }
.tbl tbody tr:last-child > * { border-bottom: 0; }
.tbl td ul { margin: 0; }
.tbl.tech tbody th { white-space: normal; min-width: 8.5em; }
.tbl.compact { width: auto; }
.tbl-note { font-size: 1rem; color: var(--ink-2); margin: 4px 0 12px; }

/* technology colours (rules content: the chits' four colours) */
.t-chip {
  display: inline-block; margin: 2px 3px 2px 0; padding: 1px 8px;
  font-family: var(--f-body); font-size: 0.875rem; font-weight: 700; line-height: 1.4; letter-spacing: 0.03em;
  border: 1.5px solid var(--ink); border-radius: 0; text-transform: none;
}
.t-grn { background: #1f5c34; color: #ffffff; }
.t-red { background: #8a2323; color: #ffffff; }
.t-blu { background: #1f437f; color: #ffffff; }
.t-yel { background: #f2cc3d; color: #141414; }

/* ---- search ----------------------------------------------------------------- */
.rsearch-wrap { margin-bottom: 16px; max-width: 760px; }
#rsearch {
  width: 100%; min-height: 52px; padding: 12px 16px 12px 48px;
  font: inherit; font-size: 1.0625rem; color: var(--ink);
  background: var(--paper) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='10' cy='10' r='6.5' fill='none' stroke='%23141414' stroke-width='2.4'/%3E%3Cpath d='m15 15 6 6' stroke='%23141414' stroke-width='2.8' stroke-linecap='round'/%3E%3C/svg%3E") 15px 50% / 21px no-repeat;
  border: 2px solid var(--ink); border-radius: 0;
  box-shadow: 3px 3px 0 #cfcfcf;
  -webkit-appearance: none; appearance: none;
}
#rsearch::placeholder { color: #5c5c5c; font-style: italic; opacity: 1; }
#rsearch::-webkit-search-cancel-button {
  -webkit-appearance: none; appearance: none; width: 18px; height: 18px; cursor: pointer;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M4 4l12 12M16 4 4 16' stroke='%23141414' stroke-width='2.6' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
}
#rsearch:focus { outline: 3px solid var(--focus); outline-offset: 2px; }

.rhint { font-style: italic; color: var(--ink-2); }
.rhit {
  max-width: 900px;
  background: var(--paper); border: 1px solid var(--ink);
  padding: 12px 16px 13px; margin-bottom: 10px;
}
.rhit-src {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.875rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink); margin-bottom: 5px;
}
.rhit-src::before { content: ""; flex: none; width: 14px; height: 13px; background: var(--hex) center / contain no-repeat; }
.rhit-text { font-size: 1rem; line-height: 1.55; color: var(--ink-2); overflow-wrap: anywhere; }
.rhit-text mark { background: var(--flame-4); color: var(--ink); padding: 0 2px; box-shadow: 0 1px 0 var(--ink); }

/* ---- footer: the rulebook's page-foot battle scene ------------------------------ */
.footer { margin-top: 30px; text-align: center; }
.footer p {
  max-width: 72ch; margin: 0 auto; padding: 18px 24px 0;
  border-top: 1px solid var(--ink);
  font-size: 1rem; font-style: italic; color: var(--ink-2);
}
.foot-band {
  display: block; width: min(100%, 1185px); height: auto; margin: 10px auto 0;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 7%, #000 93%, transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, #000 7%, #000 93%, transparent 100%);
}

/* ---- components glossary and rulebook search tokens (js/comp-widget.js + css/components.css;
        js/search-widget.js + css/search.css) ---- */
#components, .aid-srch {
  --comp-surface: #f4f4f4;      /* card: a light plate */
  --comp-fig: #ffffff;          /* picture panel = the rulebook paper (median crop corner #ffffff) */
  --comp-ink: #141414;
  --comp-muted: #4d4d4d;        /* 7.9:1 on the card */
  --comp-line: #141414;         /* 18.9:1 against the page */
  --comp-accent: #141414;
  --comp-accent-ink: #ffffff;   /* 18.9:1 */
  --comp-head-font: "STIX Two Text", "Times New Roman", Times, serif;   /* the back cover's bold Times box heads */
  --comp-radius: 0px;
}

/* ---- responsive ------------------------------------------------------------ */
@media (max-width: 820px) {
  .cover-text { width: min(520px, 64%); padding-left: 28px; }
  .cover-art { width: 60%; }
}
@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .runhead { padding: 10px 16px 7px; justify-content: center; letter-spacing: 0.18em; }
  .runhead span:first-child { display: none; }
  .cover {
    max-width: none; margin: 0 16px; min-height: 0;
    flex-direction: column; align-items: stretch;
    outline-offset: 4px;
  }
  .cover-text { width: auto; padding: 18px 16px 4px; }
  .cover-art {
    position: relative; z-index: 0; order: 2;
    width: 100%; height: 150px;
    object-position: 50% 52%;
    -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 36%);
            mask-image: linear-gradient(180deg, transparent 0%, #000 36%);
    margin-top: -14px;
  }
  .brand-sub { margin-top: 12px; font-size: 1.28rem; }
  .cover-kicker { margin-top: 8px; column-gap: 1.1em; font-size: 13px; letter-spacing: 0.12em; }
  .cover-kicker i { display: none; }
  main { padding: 0 16px 28px; }
  .intro { margin-top: 22px; }
  .sec { margin-top: 38px; }
  .sec > h2 { font-size: 1.2rem; padding: 10px 50px 8px 14px; border-width: 3px; background-size: auto 28px; background-position: right 11px center; }
  .cfg { padding: 14px 12px 16px; }
  .mode-grid, .mods { grid-template-columns: 1fr; }
  .chips > .chip { flex: 1 1 100%; }
  .step { grid-template-columns: 38px minmax(0, 1fr); gap: 0 12px; padding: 13px 13px 12px 11px; }
  .step-num { width: 38px; height: 38px; font-size: 0.95rem; }
  .step-head h4 { font-size: 1.125rem; }
  .phase-title { font-size: 1.15rem; }
  .teach-panel { margin-top: 92px; padding: 96px 16px 18px; }
  .teach-panel::before { width: 124px; height: 158px; top: -80px; }
  .teach-top h3 { font-size: 1.2rem; }
  .ref summary { padding: 11px 12px; font-size: 1rem; }
  .ref-body { padding: 14px 14px 16px; }
  .tbl th, .tbl td { padding: 6px 8px; }
  .figs .map-fig { flex-basis: 100%; }
  .footer p { margin: 0 16px; padding: 16px 0 0; }
}
/* short or very narrow phones: keep the masthead under ~half the first screen */
@media (max-width: 640px) and (max-height: 720px), (max-width: 350px) {
  .cover-art { height: 104px; }
  .cover-text { padding-top: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
  html { scroll-behavior: auto; }
}
@media print {
  .cover { outline: none; }
  .teach-bar, .rsearch-wrap, #rresults, .foot-band { display: none; }
}