/* ==========================================================================
   STEMSCAPE — "Engineer the world."
   Game identity: deep navy sky, saturated greens / teals / ambers, chunky
   rounded HUD panels, display type with character. Nothing editorial here.
   ========================================================================== */

:root {
  --night: #060E22;
  --sky: #0B1A3A;
  --sky-2: #12244D;
  --panel: #16305F;
  --panel-2: #1E3F78;
  --panel-3: #274F92;
  --line: #3B5FA0;
  --line-2: #5A80C4;
  --text: #F4F1E8;
  --muted: #C2CCE6;
  --dim: #8FA0C9;
  --green: #3FD27A;
  --green-2: #1E9E55;
  --teal: #22D3C5;
  --amber: #FFB020;
  --amber-2: #E08A00;
  --coral: #FF6B6B;
  --coral-2: #C43C3C;
  --violet: #A78BFA;
  --sand: #F1D9A0;
  --ink: #06101F;

  --font-display: 'Bungee', 'Rubik Mono One', 'Arial Black', Impact, sans-serif;
  --font-hud: 'Chakra Petch', 'Rubik', 'Segoe UI', sans-serif;
  --font-body: 'Nunito', 'Rubik', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --r: 14px;
  --r-lg: 22px;
  --r-pill: 999px;
  --shadow: 0 10px 0 -4px rgba(6,14,34,.55), 0 20px 40px -20px rgba(0,0,0,.6);
  --shadow-sm: 0 4px 0 -1px rgba(6,14,34,.5);
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --ease: cubic-bezier(.3,1.4,.5,1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--sky);
  background-image:
    radial-gradient(1200px 600px at 50% -10%, #1B3A78 0%, transparent 60%),
    radial-gradient(800px 500px at 100% 100%, rgba(34,211,197,.10) 0%, transparent 60%);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img, svg, canvas { max-width: 100%; display: block; }
a { color: var(--teal); text-underline-offset: .18em; }
a:hover { color: var(--green); }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--amber); color: var(--ink); }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; letter-spacing: .01em; line-height: 1.1; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5.5vw, 4.25rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.05rem, 2vw, 1.35rem); }
h4 { font-size: 1rem; font-family: var(--font-hud); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--amber); }
p { margin: 0 0 1em; }
code, pre, .mono { font-family: 'Chakra Petch', ui-monospace, Menlo, monospace; }
pre { white-space: pre-wrap; word-break: break-word; }
.hud-num { font-family: var(--font-hud); font-weight: 700; font-variant-numeric: tabular-nums; }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 12px; top: -80px; z-index: 2000; background: var(--amber); color: var(--ink); padding: 10px 16px; border-radius: var(--r-pill); font-weight: 800; text-decoration: none; font-family: var(--font-hud); }
.skip-link:focus { top: 12px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Header / nav ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(6,14,34,.82); backdrop-filter: blur(10px); border-bottom: 3px solid var(--panel-2); }
.site-header .wrap { display: flex; align-items: center; gap: 18px; min-height: 68px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-family: var(--font-display); font-size: 1.25rem; letter-spacing: .02em; }
.brand:hover { color: var(--text); }
.brand svg { width: 38px; height: 38px; flex: none; }
.brand .tag { font-family: var(--font-hud); font-size: .7rem; color: var(--teal); letter-spacing: .12em; text-transform: uppercase; display: block; line-height: 1; margin-top: 2px; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.site-nav a { font-family: var(--font-hud); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; font-size: .85rem; text-decoration: none; color: var(--muted); padding: 8px 12px; border-radius: var(--r-pill); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); background: var(--panel-2); }
.site-nav a.back { color: var(--dim); font-weight: 600; text-transform: none; letter-spacing: 0; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: var(--r); border: 0; cursor: pointer; text-decoration: none; font-family: var(--font-hud); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; font-size: .95rem; color: var(--ink); background: var(--amber); box-shadow: 0 5px 0 var(--amber-2); transition: transform .08s ease, box-shadow .08s ease, background .15s; }
.btn:hover { background: #FFC24D; color: var(--ink); }
.btn:active { transform: translateY(4px); box-shadow: 0 1px 0 var(--amber-2); }
.btn.green { background: var(--green); box-shadow: 0 5px 0 var(--green-2); }
.btn.green:hover { background: #63E092; }
.btn.green:active { box-shadow: 0 1px 0 var(--green-2); }
.btn.teal { background: var(--teal); box-shadow: 0 5px 0 #149C92; }
.btn.teal:active { box-shadow: 0 1px 0 #149C92; }
.btn.ghost { background: var(--panel-2); color: var(--text); box-shadow: 0 5px 0 var(--sky); }
.btn.ghost:hover { background: var(--panel-3); color: var(--text); }
.btn.ghost:active { box-shadow: 0 1px 0 var(--sky); }
.btn.danger { background: var(--coral); box-shadow: 0 5px 0 var(--coral-2); }
.btn.danger:active { box-shadow: 0 1px 0 var(--coral-2); }
.btn.sm { padding: 8px 14px; font-size: .8rem; border-radius: 10px; box-shadow: 0 3px 0 var(--amber-2); }
.btn.sm.ghost { box-shadow: 0 3px 0 var(--sky); }
.btn.sm:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--amber-2); }
.btn.big { padding: 16px 30px; font-size: 1.15rem; border-radius: 18px; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }

/* ---------- Panels ---------- */
.panel { background: var(--panel); border: 3px solid var(--panel-2); border-radius: var(--r-lg); padding: 18px; box-shadow: var(--shadow); }
.panel.tight { padding: 12px 14px; }
.panel h2, .panel h3 { margin-top: 0; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: var(--r-pill); background: var(--panel-2); color: var(--muted); font-family: var(--font-hud); font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.chip.green { background: rgba(63,210,122,.18); color: var(--green); }
.chip.amber { background: rgba(255,176,32,.18); color: var(--amber); }
.chip.coral { background: rgba(255,107,107,.18); color: var(--coral); }
.chip.teal { background: rgba(34,211,197,.18); color: var(--teal); }
.chip.violet { background: rgba(167,139,250,.2); color: var(--violet); }
.stars { font-family: var(--font-hud); letter-spacing: .1em; color: var(--amber); white-space: nowrap; }
.stars .off { color: var(--line); }

/* ---------- Footer ---------- */
.site-footer { margin-top: 60px; border-top: 3px solid var(--panel-2); background: var(--night); padding: 28px 0 40px; color: var(--dim); font-size: .95rem; }
.site-footer .wrap { display: grid; gap: 14px; }
.site-footer .row { display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: center; justify-content: space-between; }
.site-footer a { color: var(--muted); }
.site-footer .quiet { font-size: .85rem; }
.site-footer nav a { margin-right: 16px; }

/* ==========================================================================
   Landing
   ========================================================================== */
.hero { padding: clamp(28px, 6vw, 72px) 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; }
.hero .kicker { font-family: var(--font-hud); text-transform: uppercase; letter-spacing: .18em; color: var(--teal); font-weight: 700; margin-bottom: 14px; }
.hero h1 { margin-bottom: .35em; }
.hero h1 .accent { color: var(--amber); }
.hero .lead { font-size: 1.2rem; color: var(--muted); max-width: 46ch; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 22px; }
.hero-scene { position: relative; border-radius: var(--r-lg); border: 4px solid var(--panel-2); background: var(--night); overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 5 / 4; }
.hero-scene canvas { width: 100%; height: 100%; }
.hero-scene .caption { position: absolute; left: 12px; bottom: 12px; background: rgba(6,14,34,.75); padding: 6px 12px; border-radius: var(--r-pill); font-family: var(--font-hud); font-size: .8rem; color: var(--muted); }

.section { padding: 36px 0; }
.section-head { display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap; margin-bottom: 18px; }
.section-head p { color: var(--muted); margin: 0; max-width: 60ch; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.problem { border-color: var(--coral-2); }
.problem h4 { color: var(--coral); }
.solution { border-color: var(--green-2); }
.solution h4 { color: var(--green); }
.panel ul { padding-left: 1.2em; margin: 0; }
.panel li + li { margin-top: .35em; }

.mission-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.mission-card { position: relative; display: flex; flex-direction: column; gap: 10px; background: var(--panel); border: 3px solid var(--panel-2); border-radius: var(--r-lg); padding: 18px; text-decoration: none; color: var(--text); box-shadow: var(--shadow); transition: transform .15s var(--ease), border-color .15s; overflow: hidden; }
.mission-card:hover { transform: translateY(-4px); border-color: var(--line-2); color: var(--text); }
.mission-card .num { font-family: var(--font-display); font-size: 2.4rem; line-height: 1; color: var(--panel-3); position: absolute; right: 14px; top: 8px; }
.mission-card h3 { margin: 0; }
.mission-card p { color: var(--muted); margin: 0; font-size: .98rem; }
.mission-card .icon { width: 64px; height: 64px; }
.mission-card .meta { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; }

.loop { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; counter-reset: step; }
.loop .step { background: var(--sky-2); border: 3px solid var(--panel-2); border-radius: var(--r); padding: 14px; }
.loop .step::before { counter-increment: step; content: counter(step); display: inline-block; font-family: var(--font-display); color: var(--amber); font-size: 1.5rem; margin-bottom: 6px; }
.loop .step strong { display: block; font-family: var(--font-hud); text-transform: uppercase; letter-spacing: .06em; }
.loop .step span { color: var(--muted); font-size: .95rem; }

.report-sample { background: var(--night); border: 3px solid var(--panel-2); border-radius: var(--r); padding: 14px 16px; font-size: .9rem; color: var(--sand); }

/* ==========================================================================
   Play — game shell
   ========================================================================== */
.game-header .wrap { min-height: 58px; }
.game-header .progress { display: flex; gap: 8px; align-items: center; font-family: var(--font-hud); font-size: .8rem; color: var(--muted); }

.screen[hidden] { display: none !important; }
.game-main { padding: 18px 0 30px; }

/* World screen */
.world-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr); gap: 18px; align-items: start; }
.world-stage { position: relative; border-radius: var(--r-lg); border: 4px solid var(--panel-2); overflow: hidden; background: var(--night); box-shadow: var(--shadow); }
.world-stage canvas { width: 100%; height: auto; aspect-ratio: 4 / 3; touch-action: manipulation; }
.world-stage .legend { position: absolute; top: 10px; left: 10px; display: flex; gap: 6px; flex-wrap: wrap; }
.mission-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.mission-list button { width: 100%; text-align: left; display: grid; grid-template-columns: 44px 1fr auto; gap: 12px; align-items: center; background: var(--panel); border: 3px solid var(--panel-2); border-radius: var(--r); padding: 10px 12px; cursor: pointer; color: var(--text); }
.mission-list button:hover, .mission-list button:focus-visible, .mission-list button[aria-current="true"] { border-color: var(--amber); background: var(--panel-2); }
.mission-list button .n { font-family: var(--font-display); font-size: 1.4rem; color: var(--amber); }
.mission-list button .t { font-family: var(--font-hud); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; font-size: .9rem; }
.mission-list button .s { font-size: .85rem; color: var(--muted); display: block; font-family: var(--font-body); font-weight: 400; text-transform: none; letter-spacing: 0; }
.mission-list button.locked { opacity: .7; }
.mission-list button.locked .n { color: var(--dim); }
.mcard { min-height: 200px; }
.mcard .brief { color: var(--muted); }
.mcard dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 10px 0; font-size: .95rem; }
.mcard dt { font-family: var(--font-hud); text-transform: uppercase; letter-spacing: .06em; font-size: .75rem; color: var(--dim); align-self: center; }
.mcard dd { margin: 0; }
.mcard ul { padding-left: 1.1em; margin: 0 0 10px; color: var(--muted); font-size: .95rem; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }

/* HUD */
.hud { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; background: var(--night); border: 3px solid var(--panel-2); border-radius: var(--r-lg); padding: 10px; margin-bottom: 12px; }
.hud .cell { background: var(--panel); border-radius: 12px; padding: 8px 10px; min-width: 0; }
.hud .cell .l { font-family: var(--font-hud); font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; color: var(--dim); display: block; }
.hud .cell .v { font-family: var(--font-hud); font-weight: 700; font-size: 1.15rem; color: var(--text); display: block; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hud .cell.warn .v { color: var(--coral); }
.hud .cell.good .v { color: var(--green); }
.hud .bar { height: 6px; background: var(--sky); border-radius: 3px; margin-top: 6px; overflow: hidden; }
.hud .bar i { display: block; height: 100%; background: var(--green); width: 0; transition: width .2s; }
.hud .bar i.over { background: var(--coral); }

/* Mission layout */
.mission-top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.mission-top h2 { margin: 0; font-size: clamp(1.2rem, 2.6vw, 1.8rem); }
.mission-top .spacer { flex: 1; }
.mission-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 14px; align-items: start; }
.stage { position: relative; border-radius: var(--r-lg); border: 4px solid var(--panel-2); overflow: hidden; background: var(--night); box-shadow: var(--shadow); }
.stage canvas { width: 100%; height: auto; aspect-ratio: 16 / 11; touch-action: manipulation; cursor: crosshair; outline: none; }
.stage canvas:focus-visible { box-shadow: inset 0 0 0 4px var(--amber); }
.stage .overlay-tl { position: absolute; top: 8px; left: 8px; display: flex; gap: 6px; flex-wrap: wrap; pointer-events: none; }
.stage .overlay-br { position: absolute; bottom: 8px; right: 8px; display: flex; gap: 6px; }
.status-line { margin: 8px 0 0; min-height: 1.6em; font-family: var(--font-hud); font-size: .95rem; color: var(--sand); background: var(--night); border-radius: 10px; padding: 6px 12px; border: 2px solid var(--panel-2); }
.keys { font-size: .85rem; color: var(--dim); margin: 6px 0 0; }
.keys kbd { font-family: var(--font-hud); background: var(--panel); border: 1px solid var(--line); border-bottom-width: 3px; border-radius: 6px; padding: 1px 6px; color: var(--text); font-size: .8rem; }
details.placed { margin-top: 8px; }
details.placed summary { cursor: pointer; font-family: var(--font-hud); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; font-size: .85rem; color: var(--muted); }
details.placed ol { margin: 6px 0 0; padding-left: 1.4em; font-size: .9rem; color: var(--muted); max-height: 200px; overflow: auto; }

/* Side column: palette + inspector */
.side { display: grid; gap: 12px; }
.palette .modes { display: flex; gap: 6px; margin-bottom: 10px; }
.palette .modes button { flex: 1; padding: 6px 4px; border-radius: 10px; border: 2px solid var(--panel-2); background: var(--sky-2); color: var(--muted); font-family: var(--font-hud); font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; cursor: pointer; }
.palette .modes button[aria-pressed="true"] { background: var(--amber); color: var(--ink); border-color: var(--amber); }
.palette ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; max-height: 44vh; overflow: auto; }
.palette li button { width: 100%; text-align: left; display: grid; grid-template-columns: 34px 1fr auto; gap: 8px; align-items: center; background: var(--sky-2); border: 2px solid var(--panel-2); border-radius: 12px; padding: 7px 9px; cursor: pointer; color: var(--text); }
.palette li button:hover { border-color: var(--line-2); }
.palette li button[aria-pressed="true"] { border-color: var(--amber); background: var(--panel-2); box-shadow: inset 0 0 0 1px var(--amber); }
.palette li button .sw { width: 30px; height: 30px; border-radius: 8px; border: 2px solid rgba(255,255,255,.15); }
.palette li button .nm { font-family: var(--font-hud); font-weight: 700; font-size: .88rem; line-height: 1.15; }
.palette li button .sp { display: block; font-size: .76rem; color: var(--muted); font-weight: 400; font-family: var(--font-body); }
.palette li button .cost { font-family: var(--font-hud); font-weight: 700; color: var(--amber); font-size: .82rem; white-space: nowrap; }
.palette li button .key { display: inline-block; font-size: .65rem; color: var(--dim); margin-left: 4px; }
.inspector .empty { color: var(--dim); font-size: .95rem; margin: 0; }
.inspector dl { display: grid; grid-template-columns: auto 1fr; gap: 3px 10px; font-size: .92rem; margin: 6px 0 0; }
.inspector dt { color: var(--dim); font-family: var(--font-hud); font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; align-self: center; }
.inspector dd { margin: 0; }
.inspector .actions { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }

.sheet-toggle { display: none; }

/* Results */
.results { margin-top: 14px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; align-items: start; }
.results .feedback { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.results .feedback li { background: var(--sky-2); border-left: 5px solid var(--line-2); border-radius: 10px; padding: 8px 12px; font-size: .98rem; }
.results .feedback li.ok { border-left-color: var(--green); }
.results .feedback li.warn { border-left-color: var(--amber); }
.results .feedback li.bad { border-left-color: var(--coral); }
.score-big { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 10px; }
.score-big .num { font-family: var(--font-display); font-size: 3rem; line-height: 1; color: var(--amber); }
.score-big .stars { font-size: 1.5rem; }
.subscores { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.subscores li { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; font-size: .92rem; align-items: center; }
.subscores li .lbl { font-family: var(--font-hud); font-weight: 700; }
.subscores li .exp { grid-column: 1 / -1; color: var(--muted); font-size: .84rem; }
.subscores .bar { height: 8px; background: var(--sky); border-radius: 4px; overflow: hidden; grid-column: 1 / -1; }
.subscores .bar i { display: block; height: 100%; background: var(--teal); }
.report { background: var(--night); border: 3px solid var(--panel-2); border-radius: var(--r); padding: 12px 14px; font-size: .86rem; color: var(--sand); margin: 0; max-height: 520px; overflow: auto; }
.report-actions { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.hints { margin: 0; padding-left: 1.2em; }
.hints li { margin-bottom: .35em; }
.history { margin-top: 10px; }
.history table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.history th, .history td { text-align: left; padding: 4px 6px; border-bottom: 1px solid var(--panel-2); }
.history th { font-family: var(--font-hud); text-transform: uppercase; letter-spacing: .06em; font-size: .7rem; color: var(--dim); }
.history svg { width: 100%; height: auto; }
.chart-wrap { overflow-x: auto; }
.series { display: grid; gap: 8px; }
.series svg { width: 100%; height: auto; background: var(--night); border-radius: 10px; border: 2px solid var(--panel-2); }

/* Tutorial */
.tutorial { border: 0; padding: 0; background: transparent; max-width: min(92vw, 560px); }
.tutorial::backdrop { background: rgba(6,14,34,.8); }
.tutorial .panel { border-color: var(--amber); }
.tutorial ol { padding-left: 1.2em; color: var(--muted); }
.tutorial .actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

/* Print: report only */
@media print {
  body { background: #fff; color: #000; }
  .site-header, .site-footer, .hud, .stage, .side, .mission-top, .status-line, .keys, .results .feedback, .report-actions, .history, .keys, details.placed, .no-print { display: none !important; }
  .report { color: #000; background: #fff; border: 1px solid #000; max-height: none; }
}

/* ---------- Docs ---------- */
.docs-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 30px; align-items: start; padding: 30px 0; }
.docs-toc { position: sticky; top: 84px; }
.docs-toc ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.docs-toc a { display: block; padding: 6px 10px; border-radius: 10px; text-decoration: none; color: var(--muted); font-family: var(--font-hud); font-size: .88rem; font-weight: 700; }
.docs-toc a:hover { background: var(--panel-2); color: var(--text); }
.docs-body { max-width: 74ch; }
.docs-body section { margin-bottom: 44px; }
.docs-body h2 { color: var(--amber); scroll-margin-top: 90px; }
.docs-body h3 { color: var(--teal); margin-top: 1.4em; scroll-margin-top: 90px; }
.docs-body table { width: 100%; border-collapse: collapse; font-size: .92rem; margin: 10px 0 18px; }
.docs-body th, .docs-body td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--panel-2); vertical-align: top; }
.docs-body th { font-family: var(--font-hud); text-transform: uppercase; letter-spacing: .06em; font-size: .74rem; color: var(--dim); }
.docs-body .eq { background: var(--night); border: 2px solid var(--panel-2); border-radius: 10px; padding: 10px 14px; margin: 10px 0 16px; font-family: 'Chakra Petch', ui-monospace, monospace; color: var(--sand); overflow-x: auto; }
.table-wrap { overflow-x: auto; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .mission-layout { grid-template-columns: minmax(0, 1fr) 280px; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-toc { position: static; }
}
@media (max-width: 820px) {
  .world-layout, .results, .two-col { grid-template-columns: 1fr; }
  .mission-layout { grid-template-columns: 1fr; }
  .sheet-toggle { display: inline-flex; position: fixed; right: 12px; bottom: 12px; z-index: 60; }
  .side { position: fixed; left: 0; right: 0; bottom: 0; z-index: 55; max-height: 62vh; overflow: auto; background: var(--night); border-top: 4px solid var(--amber); border-radius: 18px 18px 0 0; padding: 12px 12px 74px; transform: translateY(100%); transition: transform .25s var(--ease); box-shadow: 0 -10px 40px rgba(0,0,0,.6); }
  .side.open { transform: translateY(0); }
  .palette ul { max-height: none; }
  .hud .cell .v { font-size: 1rem; }
  .stage canvas { aspect-ratio: 1 / 1; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}