:root{
  --bg:#06070b;
  --bg2:#0c0e15;
  --card:#11141d;
  --line:#1f2431;
  --line2:#2b3142;
  --text:#eef1f7;
  --muted:#8a93a6;
  --dim:#5a6274;
  --mars:#ff6a3d;
  --mars2:#ffb08a;
  --earth:#4da3ff;
  --crew:#7cf0c5;
  --sun:#ffc24b;
  --radius:18px;
  --gutter:clamp(16px,4vw,48px);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:Inter,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.55;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:
    radial-gradient(1200px 600px at 85% -10%, rgba(255,106,61,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(77,163,255,.07), transparent 60%);
}
h1,h2,h3{font-family:"Space Grotesk",Inter,sans-serif;letter-spacing:-.02em;margin:0}
a{color:inherit}
button{font:inherit;color:inherit;cursor:pointer}

/* header */
.top{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;
  padding:14px var(--gutter);background:rgba(6,7,11,.72);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:"Space Grotesk";font-weight:600;letter-spacing:.02em}
.brand .dot{width:12px;height:12px;border-radius:50%;background:radial-gradient(circle at 35% 35%,var(--mars2),var(--mars) 60%,#8f2a12);box-shadow:0 0 12px rgba(255,106,61,.7)}
.nav{display:flex;gap:22px;margin-left:auto}
.nav a{text-decoration:none;color:var(--muted);font-size:14px;transition:color .2s}
.nav a:hover{color:var(--text)}
.lang{display:flex;border:1px solid var(--line2);border-radius:999px;padding:3px}
.lang button{border:0;background:none;padding:5px 11px;border-radius:999px;font-size:12px;font-weight:600;color:var(--muted)}
.lang button[aria-pressed=true]{background:var(--text);color:var(--bg)}

/* hero */
.hero{
  display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(24px,4vw,56px);align-items:center;
  padding:clamp(40px,8vw,110px) var(--gutter) 40px;max-width:1240px;margin:0 auto;
}
.eyebrow{color:var(--mars);font-weight:600;text-transform:uppercase;letter-spacing:.14em;font-size:12px;margin:0 0 14px}
h1{font-size:clamp(30px,10vw,88px);line-height:.98;font-weight:700;overflow-wrap:anywhere}
@media (min-width:721px){h1{font-size:clamp(40px,4.8vw,68px);overflow-wrap:normal}}
.accent{background:linear-gradient(90deg,var(--mars2),var(--mars));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);font-size:clamp(16px,1.6vw,19px);max-width:560px;margin:22px 0 32px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:600px}
.hero-stats div{border:1px solid var(--line);border-radius:14px;padding:14px;background:rgba(17,20,29,.6)}
.hero-stats b{display:block;font-family:"Space Grotesk";font-size:clamp(22px,3vw,30px)}
.hero-stats span{display:block;color:var(--muted);font-size:13px;line-height:1.35}
.hero-art{position:relative}
.hero-art svg{display:block;width:100%;height:auto}
.hero-stack{animation:bob 4s ease-in-out infinite}
.flame{transform-origin:0 132px;animation:flick .12s infinite alternate}
.float-slow{animation:bob 7s ease-in-out infinite reverse}
@keyframes bob{50%{transform:translateY(-8px)}}
@keyframes flick{to{transform:scaleY(.82) scaleX(1.1)}}

/* blocks */
.block{max-width:1240px;margin:0 auto;padding:clamp(50px,8vw,100px) var(--gutter) 10px}
.block-head{display:flex;gap:22px;align-items:flex-start;margin-bottom:34px}
.num{font-family:"Space Grotesk";font-size:13px;color:var(--mars);border:1px solid rgba(255,106,61,.4);border-radius:999px;padding:4px 10px;margin-top:8px;flex:none}
.block-head h2{font-size:clamp(28px,4vw,44px);line-height:1.08}
.block-head p{color:var(--muted);margin:10px 0 0;max-width:680px}
.note{color:var(--dim);font-size:13px;max-width:820px;margin-top:18px}

/* solar system game */
.block-wide{max-width:none;padding-left:0;padding-right:0}
.inner{max-width:1240px;margin-left:auto;margin-right:auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.game-eyebrow{margin-bottom:8px;color:var(--crew)}
.stage{
  position:relative;width:100%;height:clamp(560px,82vh,900px);overflow:hidden;
  background:radial-gradient(ellipse 60% 55% at 50% 55%,#121628 0%,#090b13 60%,var(--bg) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
#orbitSvg{position:absolute;inset:0;width:100%;height:100%;display:block}
.plane-glow{fill:rgba(77,163,255,.04);stroke:none}
.orbit{fill:none;stroke:#2c3348;stroke-width:1}
.orbit-earth{stroke:rgba(77,163,255,.5);stroke-width:1.2}
.orbit-mars{stroke:rgba(255,106,61,.5);stroke-width:1.2}
.halo{fill:none;stroke-width:1;opacity:.45}
.halo-earth{stroke:var(--earth)}
.halo-mars{stroke:var(--mars)}
.plabel{fill:var(--text);opacity:.7;font-size:11px;text-anchor:middle;font-family:Inter;font-weight:500;letter-spacing:.06em}
.transfer-preview{fill:none;stroke:rgba(255,255,255,.4);stroke-width:1.4;stroke-dasharray:4 5;transition:stroke .3s}
.transfer-preview.aligned{stroke:var(--crew);stroke-dasharray:none;filter:drop-shadow(0 0 4px var(--crew))}
.ghost-mars{fill:none;stroke:rgba(255,255,255,.5);stroke-width:1.2;stroke-dasharray:3 3}
#ghostMars.aligned .ghost-mars{stroke:var(--crew);stroke-dasharray:none;stroke-width:2}
.dist-line{stroke:rgba(255,255,255,.1);stroke-width:.8;stroke-dasharray:1 4}
.trail{fill:none;stroke-width:1;opacity:.45}
.trail.cargo{stroke:#c9d0d9}
.trail.crew{stroke:#7cf0c5}
.trail.you{stroke:var(--mars);opacity:.9;stroke-width:1.6}
.trail.miss{stroke:#ff4f6a;opacity:.5;stroke-dasharray:3 3}
.ship .glow{opacity:.25;fill:#c9d0d9}
.ship-crew .glow{fill:var(--crew)}
.ship-you .glow{fill:var(--mars);opacity:.55}

.hud{position:absolute;z-index:3;background:rgba(10,12,19,.72);backdrop-filter:blur(10px);border:1px solid var(--line2);border-radius:16px;padding:14px 16px}
.hud-title{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.hud-score{top:20px;left:max(20px,calc((100% - 1240px)/2 + 20px))}
.score-grid{display:grid;grid-template-columns:repeat(4,auto);gap:4px 18px}
.score-grid b{display:block;font-family:"Space Grotesk";font-size:24px;line-height:1.1;font-variant-numeric:tabular-nums}
.score-grid b.ok{color:var(--crew)}
.score-grid b.bad{color:#ff6b81}
.score-grid b.pts{color:var(--sun)}
.score-grid span{font-size:11px;color:var(--muted)}
.score-grid b.bump{animation:bump .5s}
@keyframes bump{40%{transform:scale(1.35)}}
.hud-date{top:20px;right:max(20px,calc((100% - 1240px)/2 + 20px));width:260px}
.date{font-family:"Space Grotesk";font-size:24px;font-weight:600;font-variant-numeric:tabular-nums}
.phase-pill{display:inline-block;margin:6px 0 10px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:#1b1f2b;color:var(--muted);transition:all .3s}
.phase-pill.open{background:rgba(124,240,197,.14);color:var(--crew);box-shadow:0 0 0 1px rgba(124,240,197,.35)}
.metrics{margin:0;display:grid;gap:6px}
.metrics div{display:flex;justify-content:space-between;gap:10px}
.metrics dt{color:var(--muted);font-size:12px}
.metrics dd{margin:0;font-weight:600;font-variant-numeric:tabular-nums;text-align:right;font-size:12.5px}

.hud-launch{left:50%;bottom:22px;transform:translateX(-50%);display:flex;align-items:center;gap:18px;padding:14px 14px 14px 20px;width:min(560px,calc(100% - 32px))}
.meter-wrap{flex:1;min-width:0}
.meter-labels{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.meter-labels .go{color:var(--crew);font-weight:700}
.timing{position:relative;height:10px;border-radius:6px;margin:6px 0;background:linear-gradient(90deg,#3a2230,#2a2f3f 35%,#2a2f3f 65%,#3a2230)}
.timing .zone{position:absolute;left:43.75%;width:12.5%;top:-2px;bottom:-2px;border-radius:6px;background:rgba(124,240,197,.35);box-shadow:0 0 0 1px var(--crew)}
.timing .needle{position:absolute;top:-5px;width:4px;height:20px;margin-left:-2px;border-radius:2px;background:#fff;box-shadow:0 0 8px #fff;left:0;transition:background .2s}
.timing.go .needle{background:var(--crew);box-shadow:0 0 12px var(--crew)}
.timing-hint{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.timing-hint.go{color:var(--crew)}
.launch-btn{
  flex:none;border:0;border-radius:14px;padding:14px 22px;font-family:"Space Grotesk";font-weight:700;font-size:18px;letter-spacing:.06em;text-transform:uppercase;
  background:linear-gradient(180deg,#ff8a5c,var(--mars));color:#1a0a04;box-shadow:0 6px 24px rgba(255,106,61,.35);display:flex;flex-direction:column;align-items:center;gap:2px;transition:transform .15s
}
.launch-btn:active{transform:scale(.95)}
.launch-btn kbd{font-family:Inter;font-size:10px;font-weight:600;opacity:.6;letter-spacing:.04em}
.launch-btn.ready{animation:ready 1s ease-in-out infinite;background:linear-gradient(180deg,#a8ffe0,var(--crew));box-shadow:0 0 30px rgba(124,240,197,.6)}
@keyframes ready{50%{transform:scale(1.07)}}

.toast{
  position:absolute;z-index:4;left:50%;top:22%;transform:translate(-50%,10px) scale(.96);opacity:0;
  background:rgba(12,14,21,.92);border:1px solid var(--line2);border-radius:14px;
  padding:12px 20px;font-size:15px;font-weight:600;text-align:center;max-width:calc(100% - 32px);
  transition:all .35s ease;pointer-events:none
}
.toast.show{opacity:1;transform:translate(-50%,0) scale(1)}
.toast.good{border-color:var(--crew);color:var(--crew)}
.toast.bad{border-color:#ff6b81;color:#ff9aa9}

.intro{position:absolute;inset:0;z-index:5;display:grid;place-items:center;background:rgba(6,7,11,.55);backdrop-filter:blur(3px);transition:opacity .4s;padding:16px}
.intro.hide{opacity:0;pointer-events:none}
.intro-card{max-width:440px;background:rgba(14,17,26,.95);border:1px solid var(--line2);border-radius:20px;padding:26px}
.intro-ship svg{width:64px;height:28px;animation:drift 3s ease-in-out infinite}
.intro-card h3{font-size:24px;margin:10px 0 12px}
.intro-card ol{margin:0 0 20px;padding-left:20px;color:var(--muted);font-size:14.5px;display:grid;gap:8px}
.btn.start-btn{background:var(--mars);border-color:var(--mars);color:#1a0a04;font-size:15px;padding:12px 20px;width:100%}
.btn.start-btn:hover{background:#ff8a5c}

.controls-bar{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px;margin-top:20px}
.controls-bar .speed{width:200px}
.btn{border:1px solid var(--line2);background:#171b26;border-radius:12px;padding:9px 14px;font-size:13px;font-weight:600;transition:all .2s}
.btn:hover{border-color:#4a5268;background:#1d2230}
.btn.primary{background:var(--text);border-color:var(--text);color:var(--bg);width:42px;height:40px;padding:0;display:grid;place-items:center}
.btn.primary svg{width:20px;height:20px;fill:currentColor}
.btn.primary .ico-pause{display:none}
.btn.primary.playing .ico-play{display:none}
.btn.primary.playing .ico-pause{display:block}
.btn.ghost{background:none}
.slider-label{display:block;font-size:13px;color:var(--muted)}
.slider-label output{color:var(--text);font-weight:600}
input[type=range]{width:100%;accent-color:var(--mars);margin-top:6px}
.scenario{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.mini-label{font-size:13px;color:var(--muted)}
.seg{display:inline-flex;border:1px solid var(--line2);border-radius:12px;padding:3px;gap:2px}
.seg button{border:0;background:none;padding:7px 12px;border-radius:9px;font-size:13px;font-weight:600;color:var(--muted)}
.seg button[aria-pressed=true]{background:#232838;color:var(--text)}
.seg-lg{margin-bottom:18px}
.scrubber{position:relative;margin-top:18px;padding:0 2px}
.scrubber input{margin:0;position:relative;z-index:2}
.ticks{position:relative;height:14px;margin-top:4px}
.ticks button{position:absolute;top:0;transform:translateX(-50%);width:10px;height:10px;padding:0;border-radius:50%;border:0;background:var(--crew);opacity:.7;box-shadow:0 0 8px var(--crew)}
.ticks button:hover{opacity:1}
.scrub-years{display:flex;justify-content:space-between;color:var(--dim);font-size:12px;font-variant-numeric:tabular-nums}

@media (max-width:820px){
  .stage{height:auto;aspect-ratio:auto;display:flex;flex-direction:column}
  #orbitSvg{position:relative;height:auto;aspect-ratio:600/480;order:2}
  .hud{position:relative;inset:auto;transform:none;margin:0 12px;width:auto}
  .hud-score{order:1;margin-top:12px}
  .hud-date{order:3;margin-top:10px;display:flex;align-items:center;gap:4px 12px;flex-wrap:wrap}
  .hud-date .phase-pill{margin:0}
  .hud-date .metrics{width:100%}
  .date{font-size:20px}
  .hud-launch{order:4;margin-bottom:12px;left:auto;bottom:auto;transform:none;width:auto}
  .score-grid{grid-template-columns:repeat(4,1fr)}
  .score-grid b{font-size:20px}
  .toast{top:120px}
}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:relative;overflow:hidden;transition:transform .3s,border-color .3s}
.card:hover{transform:translateY(-3px);border-color:var(--line2)}
.card .k{font-size:13px;color:var(--muted)}
.card .v{font-family:"Space Grotesk";font-size:30px;font-weight:600;margin:6px 0 2px}
.card .c{font-size:13px;color:var(--dim)}
.card .meter{height:4px;background:#1b1f2b;border-radius:4px;margin-top:14px;overflow:hidden}
.card .meter i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--earth),var(--mars));border-radius:4px;transition:width 1.2s cubic-bezier(.2,.8,.2,1)}
.in .card .meter i{width:var(--w)}
.challenges .card .ic{font-size:22px;width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:#1a1e2a;margin-bottom:14px}
.challenges .card h3{font-size:18px;margin-bottom:6px}
.challenges .card p{margin:0;color:var(--muted);font-size:14px}

/* mission */
.mission{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;align-items:stretch}
.scene-box{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative}
#scene{width:100%;height:auto;display:block;aspect-ratio:400/260}
.scene-progress{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(255,255,255,.05)}
.scene-progress i{display:block;height:100%;width:0;background:var(--mars)}
.step-info{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column}
.step-count{color:var(--mars);font-family:"Space Grotesk";font-weight:600;font-size:14px}
.step-info h3{font-size:clamp(22px,2.6vw,30px);margin:8px 0 10px}
.step-info p{color:var(--muted);margin:0}
.step-fact{margin-top:16px;padding:12px 14px;border-radius:12px;background:#171b26;font-size:14px;border-left:3px solid var(--mars)}
.step-nav{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:22px}
.dots{display:flex;gap:6px;flex:1;justify-content:center;flex-wrap:wrap}
.dots button{width:9px;height:9px;padding:0;border-radius:50%;border:0;background:#2b3142;transition:all .3s}
.dots button.on{background:var(--mars);width:24px;border-radius:6px}
.fade-in{animation:fadeIn .5s ease both}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}}

/* scene animations */
.s-rise{animation:rise 3.6s cubic-bezier(.5,0,.6,1) infinite}
@keyframes rise{0%{transform:translateY(40px)}100%{transform:translateY(-230px)}}
.s-flick{animation:flick .1s infinite alternate}
.s-drift{animation:drift 6s ease-in-out infinite}
@keyframes drift{50%{transform:translate(6px,-6px) rotate(2deg)}}
.s-flow{stroke-dasharray:3 7;animation:flow .6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-10}}
.s-stars{animation:stars 3s linear infinite}
@keyframes stars{to{transform:translateX(-400px)}}
.s-pulse{animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{50%{opacity:.4}}
.s-descend{animation:descend 4s cubic-bezier(.2,.7,.3,1) infinite}
@keyframes descend{0%{transform:translateY(-120px)}70%,100%{transform:translateY(0)}}
.s-entry{animation:entry 4.5s linear infinite}
@keyframes entry{0%{transform:translate(-60px,-80px)}100%{transform:translate(120px,40px)}}
.s-orbit{animation:spin 5s linear infinite;transform-box:view-box}
@keyframes spin{to{transform:rotate(360deg)}}
.s-burn{animation:burn 4s ease-in infinite}
@keyframes burn{0%{offset-distance:0%}100%{offset-distance:100%}}
.s-pop{animation:pop .6s cubic-bezier(.2,1.6,.4,1) both}
@keyframes pop{from{transform:scale(0)}}

/* flight bars */
.bars{display:grid;gap:14px}
.bar{display:grid;grid-template-columns:220px 1fr 120px;gap:16px;align-items:center}
.bar .lbl b{display:block;font-size:15px}
.bar .lbl span{color:var(--muted);font-size:13px}
.bar .track{height:38px;background:#11141d;border:1px solid var(--line);border-radius:12px;position:relative;overflow:hidden}
.bar .fill{position:absolute;inset:0 auto 0 0;width:0;border-radius:11px;transition:width 1.4s cubic-bezier(.2,.8,.2,1)}
.bar .range{position:absolute;top:0;bottom:0;background:rgba(255,106,61,.25);border-left:1px dashed var(--mars);border-right:1px dashed var(--mars);opacity:0;transition:opacity .6s 1s}
.in .bar .range{opacity:1}
.bar .fill use{transition:transform 1.4s}
.bar .shipico{position:absolute;right:4px;top:50%;width:34px;height:14px;transform:translateY(-50%)}
.bar .val{font-family:"Space Grotesk";font-size:20px;font-weight:600;text-align:right}
.bar .val small{display:block;color:var(--muted);font-size:12px;font-family:Inter;font-weight:400}
.in .bar .fill{width:var(--w)}
.dist-compare{margin-top:34px;display:grid;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.dc-row{display:grid;grid-template-columns:160px 1fr 100px;gap:14px;align-items:center;font-size:14px}
.dc-label{color:var(--muted)}
.dc-track{height:8px;background:#1b1f2b;border-radius:6px;overflow:hidden}
.dc-track i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--earth),var(--mars));border-radius:6px;transition:width 1.4s cubic-bezier(.2,.8,.2,1)}
.in .dc-track i{width:var(--w)}
.dc-row b{text-align:right;font-variant-numeric:tabular-nums}

/* timeline */
.legend{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:26px}
.legend>span{display:flex;align-items:center;gap:7px}
.lg{width:10px;height:10px;border-radius:50%;display:inline-block}
.lg.past{background:var(--earth)}
.lg.plan{background:transparent;border:2px dashed var(--mars)}
.lg.crew{background:var(--crew)}
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline::before{content:"";position:absolute;left:94px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--earth) 0%,var(--earth) var(--now,40%),var(--mars) var(--now,40%),rgba(255,106,61,.2) 100%)}
.timeline li{display:grid;grid-template-columns:80px 30px 1fr;gap:0 12px;padding:0 0 24px;position:relative;opacity:0;transform:translateY(10px);transition:all .5s}
.timeline li.in{opacity:1;transform:none}
.timeline .yr{font-family:"Space Grotesk";font-weight:600;font-size:18px;text-align:right;padding-top:0}
.timeline .pt{width:14px;height:14px;border-radius:50%;margin:5px auto 0;background:var(--earth);box-shadow:0 0 0 4px var(--bg);position:relative;z-index:1}
.timeline li.plan .pt{background:var(--bg);border:2px dashed var(--mars)}
.timeline li.crew .pt{background:var(--crew);border:0;box-shadow:0 0 0 4px var(--bg),0 0 14px var(--crew)}
.timeline li.now .pt{background:#fff;box-shadow:0 0 0 4px var(--bg),0 0 0 7px rgba(255,255,255,.25)}
.timeline .body{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.timeline li.plan .body{border-style:dashed}
.timeline li.now .body{border-color:#fff3;background:#151926}
.timeline h4{margin:0 0 4px;font-family:"Space Grotesk";font-size:17px}
.timeline p{margin:0;color:var(--muted);font-size:14px}
.tag{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;padding:2px 8px;border-radius:999px;margin-left:6px;vertical-align:2px}
.tag.prob{background:rgba(255,106,61,.14);color:var(--mars2)}
.tag.now{background:#fff;color:#000}

/* big numbers */
.big-numbers{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.big{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.big b{font-family:"Space Grotesk";font-size:clamp(32px,4vw,48px);display:block;background:linear-gradient(90deg,#fff,var(--mars2));-webkit-background-clip:text;background-clip:text;color:transparent}
.big span{color:var(--muted);font-size:14px}

/* footer */
.foot{max-width:1240px;margin:80px auto 0;padding:30px var(--gutter) 50px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.foot ul{padding-left:18px;margin:8px 0 16px}
.foot a{color:var(--text)}
.small{font-size:12px;color:var(--dim)}

/* responsive */
@media (max-width:1000px){
  .cards,.big-numbers{grid-template-columns:repeat(2,1fr)}
  .mission{grid-template-columns:1fr}
}
@media (max-width:720px){
  .nav{display:none}
  .hdr-tools{margin-left:auto}
  .hero{grid-template-columns:1fr;gap:10px;padding-top:30px}
  .hero-art{order:-1}
  .hero-art{border-radius:22px}
  .hero-stats{grid-template-columns:1fr 1fr 1fr;gap:8px}
  .hero-stats div{padding:10px}
  .hero-stats span{font-size:11.5px}
  .block-head{flex-direction:column;gap:10px}
  .num{margin-top:0}
  .bar{grid-template-columns:1fr auto;gap:6px 12px}
  .bar .track{grid-column:1/-1;grid-row:2}
  .dc-row{grid-template-columns:100px 1fr 80px;font-size:13px}
  .timeline::before{left:68px}
  .timeline li{grid-template-columns:56px 26px 1fr;gap:0 6px}
  .timeline .yr{font-size:15px}
}
@media (max-width:460px){
  .cards,.big-numbers{grid-template-columns:1fr 1fr;gap:10px}
  .card{padding:14px}
  .card .v{font-size:24px}
  .challenges{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:0s!important;animation-iteration-count:1!important;transition:none!important}
}
.cards.challenges{grid-template-columns:repeat(3,1fr)}
@media (max-width:1000px){.cards.challenges{grid-template-columns:repeat(2,1fr)}}
@media (max-width:460px){.cards.challenges{grid-template-columns:1fr}}

/* line icons in Why cards */
.card .ico-line{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;margin-bottom:12px;color:var(--mars2);background:rgba(255,106,61,.08);border:1px solid rgba(255,106,61,.2)}
.card .ico-line svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.card:hover .ico-line svg{animation:wiggle .6s ease}
@keyframes wiggle{30%{transform:rotate(-8deg)}60%{transform:rotate(6deg)}}

.orbit,.transfer-preview,.trail,.dist-line,.ghost-mars,.halo{vector-effect:non-scaling-stroke}
@media (max-width:520px){
  .hud-launch{flex-direction:column;align-items:stretch;gap:12px;padding:14px}
  .launch-btn{flex-direction:row;justify-content:center;gap:10px;padding:14px}
  .timing-hint{text-align:center}
}
@media (max-width:400px){.big-numbers{grid-template-columns:1fr}}

/* ---------- line-art illustrations ---------- */
.hero-art g,.ill g{transform-box:view-box}
.a-wave{animation:wave 1.1s ease-in-out infinite alternate}
.a-waveL{animation:waveL 1.1s ease-in-out infinite alternate}
.a-cheerL{animation:waveL 1.6s ease-in-out infinite alternate}
.a-cheerR{animation:wave 1.6s ease-in-out infinite alternate}
.a-hop{animation:hop 1.6s ease-in-out infinite}
.a-sway{animation:sway 3.2s ease-in-out infinite}
.a-heart{animation:heart 2.4s ease-in-out infinite}
.a-puff{animation:puff 3s ease-out infinite;transform-origin:0 0}
.a-blink{animation:blink 1.4s steps(2) infinite}
.a-float{animation:bob 7s ease-in-out infinite}
.a-twinkle{animation:pulse 3s ease-in-out infinite}
@keyframes wave{from{transform:rotate(-10deg)}to{transform:rotate(14deg)}}
@keyframes waveL{from{transform:rotate(10deg)}to{transform:rotate(-14deg)}}
@keyframes hop{0%,100%{transform:none}50%{transform:translateY(-6px)}}
@keyframes sway{0%,100%{transform:rotate(0)}50%{transform:rotate(1.6deg)}}
@keyframes heart{0%{transform:translateY(6px) scale(.6);opacity:0}30%{opacity:1}100%{transform:translateY(-22px) scale(1.05);opacity:0}}
@keyframes puff{0%{transform:scale(.5);opacity:0}25%{opacity:1}100%{transform:scale(1.6) translateY(-6px);opacity:0}}
@keyframes blink{50%{opacity:.25}}

/* city cards: static until hover / tap */
.big{cursor:pointer;outline:none;transition:border-color .25s,transform .25s}
.big:hover,.big.on,.big:focus-visible{border-color:#3c5fc9;transform:translateY(-2px)}
.big .ill{margin:-6px -6px 14px;overflow:hidden}
.big .ill svg{display:block;width:100%;height:auto}
.ill .c-bob{animation:cbob 1.4s ease-in-out infinite}
.ill .c-rise{animation:crise 2.6s ease-in infinite}
.ill .c-launch{animation:claunch 1.8s ease-in infinite}
.ill .c-flame{opacity:0;animation:cflame 1.8s linear infinite}
.ill .c-rise .c-flame{animation-duration:2.6s}
.ill .c-hand{animation:spin 1.8s linear infinite}
.ill .c-hand-s{animation:spin 21.6s linear infinite}
.ill .c-puff{opacity:0;animation:puff 1.8s ease-out infinite}
.ill .c-coin{animation:ccoin 2.4s ease-in infinite}
.ill .c-crate{animation:ccrate 2.4s ease-in-out infinite}
.ill *{animation-play-state:paused!important}
.big:hover .ill *,.big.on .ill *,.big:focus-visible .ill *{animation-play-state:running!important}
@keyframes cbob{0%,60%,100%{transform:none}25%{transform:translateY(-7px)}}
@keyframes crise{0%,10%{transform:none;opacity:1}75%{transform:translate(30px,-110px);opacity:1}76%,88%{transform:translate(30px,-110px);opacity:0}89%{transform:none;opacity:0}100%{opacity:1}}
@keyframes claunch{0%,10%{transform:none;opacity:1}80%{transform:translateY(-110px);opacity:1}81%,90%{transform:translateY(-110px);opacity:0}91%{transform:none;opacity:0}100%{opacity:1}}
@keyframes cflame{0%,8%{opacity:0}12%,78%{opacity:1}80%,100%{opacity:0}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes ccoin{0%{transform:none;opacity:1}12%{transform:none;opacity:0}13%{transform:translateY(-90px);opacity:0}25%{opacity:1}55%,100%{transform:none;opacity:1}}
@keyframes ccrate{0%,100%{transform:none}50%{transform:translateY(-4px)}}
@media (prefers-reduced-motion:reduce){.hero-art *{animation:none!important}}
.noscript{margin:0;padding:12px var(--gutter);background:#2a1208;color:var(--mars2);text-align:center;font-size:14px}

/* sound toggle (header, next to language) */
.hdr-tools{display:flex;align-items:center;gap:8px}
.sound-btn{width:36px;height:36px;padding:0;display:grid;place-items:center;border:1px solid var(--line2);border-radius:50%;background:none;color:var(--text);transition:color .2s,border-color .2s}
.sound-btn:hover{border-color:#4a5268}
.sound-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.sound-btn .spk{fill:currentColor;stroke:none}
.sound-btn .off{display:none}
.sound-btn[aria-pressed=false]{color:var(--dim)}
.sound-btn[aria-pressed=false] .on{display:none}
.sound-btn[aria-pressed=false] .off{display:block}
.brand{white-space:nowrap}
@media (max-width:380px){header{gap:10px}.hdr-tools{gap:6px}.sound-btn{width:32px;height:32px}.lang button{padding:5px 9px}.brand{font-size:15px;gap:8px}}