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#7eedda;outline-offset:3px}button:disabled{cursor:default;color:#78939d;background:#10202b;outline:none;border-color:#ffffff13}[hidden]{display:none!important}#game{position:absolute;width:min(100vw,177.7778vh);height:min(100vh,56.25vw);left:50%;top:50%;transform:translate(-50%,-50%);overflow:hidden;background:#071822;isolation:isolate}#world{display:block;width:100%;height:100%;image-rendering:pixelated}.shade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,#02101bc4,transparent 22%,transparent 80%,#04101bca)}.hud{position:absolute;inset:3.8% 3.5% auto;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{display:flex;gap:14px;align-items:center}.brand-icon{border:1px solid #91efe070;color:#9bf3e0;padding:9px 6px;font-weight:900;font-size:20px;transform:skew(-7deg)}.brand strong{font-size:18px;letter-spacing:.14em}.brand 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#game:not(.playing) .mission,#game:not(.playing) .chapter-map,#game:not(.playing) .controls{display:none}
.paris-scene .mission{border-left-color:#e9bf87;background:linear-gradient(90deg,#142634f2,#142634b0)}
.paris-scene .mission .eyebrow,.paris-scene .dialogue .eyebrow{color:#edca99}
.paris-scene .dialogue{border-top-color:#edca99}
.paris-scene .progress i{background:#edca99}
.paris-scene .chapter-map>span{color:#edca99aa}
.paris-scene .portrait{background:linear-gradient(160deg,#4b4b47,#1e3443)}
.paris-summary{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:26px 0}
.paris-summary article{padding:18px 15px;border:1px solid #647e7766;background:#122d35aa;border-top:2px solid #dfbb87}
.paris-summary span{display:block;font-size:10px;letter-spacing:.14em;color:#dfbb87;margin-bottom:13px}
.paris-summary b{font-size:15px;font-weight:600;line-height:1.4;display:block}
.paris-summary p{font-size:12px;line-height:1.5;color:#9db9c3;margin-bottom:0}
@media(max-width:900px){.paris-summary{gap:6px;margin:14px 0}.paris-summary article{padding:9px 7px}.paris-summary span{font-size:7px;margin-bottom:8px}.paris-summary b{font-size:10px}.paris-summary p{font-size:8px}.start-copy .start-foot{margin-top:10px}}
#game.finished .hud,#game.finished .mission,#game.finished .chapter-map,#game.finished .controls{visibility:hidden}
#game.door-ready .mission{left:auto;right:3.5%}
.rehearse{display:flex;gap:10px;align-items:center;margin-top:12px;padding:8px 12px;font-size:11px;color:#b1bdd0;border-color:#7a73963d;background:#0a1723aa}.rehearse .key{width:18px;height:18px;font-size:10px}.rehearse small{color:#7c8caa}.key.yellow{background:#e7ca85;color:#493613;box-shadow:0 2px 0 #645022}.checkpoint-scene .mission{border-left-color:#c1abed;background:linear-gradient(90deg,#101428ed,#13152cba)}.checkpoint-scene .mission .eyebrow,.checkpoint-scene .dialogue .eyebrow{color:#c9b4ef}.checkpoint-scene .dialogue{border-top-color:#bdace7;background:linear-gradient(110deg,#172338f7,#111627f7)}.checkpoint-scene .progress i{background:#d1bbee}.checkpoint-scene .chapter-map>span{color:#d4c5efaa}.checkpoint-scene .portrait{background:linear-gradient(160deg,#3a3656,#1f2338)}.case-panel{--case-accent:#e7b68e;position:absolute;z-index:14;top:15%;right:4%;width:31%;padding:24px 26px;background:linear-gradient(140deg,#202333f5,#0e1a2cf2);border:1px solid #9a809455;border-top:3px solid var(--case-accent);box-shadow:0 20px 65px #02061099;max-height:45%;overflow:auto;transform:rotate(.3deg)}.case-panel .eyebrow{color:var(--case-accent)}.case-panel h2{font-size:32px;letter-spacing:-.03em;margin:13px 0 18px}.case-seal{position:absolute;right:24px;top:52px;font-size:9px;color:#8499b4;text-align:right;letter-spacing:.12em}.case-seal b{display:block;font-size:20px;letter-spacing:0;margin-top:4px;color:#a6b1c4}.case-panel dl{margin:0}.case-panel dt{font-size:9px;letter-spacing:.16em;color:#8b9bb3;margin:11px 0 6px}.case-panel dd{margin:0;font-size:15px;color:#e2e8f4}.case-panel p{font-size:13px;line-height:1.5;color:#bac6d8;border-left:2px solid var(--case-accent);padding-left:12px;margin:17px 0 12px}.case-panel small{font-size:9px;color:#7c93aa;line-height:1.5}.scene-transition{position:absolute;inset:0;z-index:80;background:#050b16;display:flex;flex-direction:column;justify-content:center;align-items:center;animation:roomFade 1.1s ease both}.scene-transition .eyebrow{color:#c5b2f0}.scene-transition h2{font-size:clamp(40px,6vw,95px);line-height:.9;letter-spacing:-.04em;margin:24px 0;color:#f4f2fc}.scene-transition em{font-style:normal;color:#bea8e8}.scene-transition p{font-size:13px;color:#95a4bd;letter-spacing:.1em}@keyframes roomFade{0%{opacity:0}20%,80%{opacity:1}100%{opacity:0}}@media(max-width:900px){.rehearse{font-size:9px;margin-top:7px;padding:5px 8px}.case-panel{padding:12px 14px;width:33%;top:17%;max-height:43%}.case-panel h2{font-size:21px;margin:9px 0 11px}.case-seal{right:12px;top:35px;font-size:6px}.case-seal b{font-size:13px}.case-panel dt{font-size:7px;margin:8px 0 4px}.case-panel dd{font-size:11px}.case-panel p{font-size:10px;margin:11px 0 8px;padding-left:7px}.case-panel small{font-size:7px}.checkpoint-scene .choices button{font-size:10px}.checkpoint-scene .choices button span{font-size:8px}.scene-transition p{font-size:10px}}
/* Projected slides: each NPC presents its part of the dissertation. */
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.slide-stage{position:absolute;inset:0;z-index:15;background:radial-gradient(ellipse at 50% 46%,#03101a66,#020a12d9 75%);animation:stageDim .35s ease both}
.presenter{position:absolute;left:3%;bottom:14%;width:13.5%;display:flex;flex-direction:column;align-items:flex-start;gap:.45cqw;animation:presenterIn .5s .15s ease both}
.presenter .portrait{position:relative;overflow:hidden;width:120px;height:210px;background:linear-gradient(160deg,#264454,#122435);border:1px solid #ffffff22;border-bottom:3px solid var(--glow);box-shadow:0 0 30px #0008}
.presenter .portrait img{position:absolute;max-width:none;object-fit:fill;image-rendering:pixelated;bottom:-5px;left:0}
.presenter .portrait span{position:absolute;left:8px;top:8px;font-size:11px;color:#d7f2ec}
.presenter h2{font-size:clamp(14px,1.5cqw,24px);margin:0;color:#f4fbfb}.presenter .eyebrow{font-size:clamp(7px,.62cqw,10px);color:var(--glow);line-height:1.4}
#live-label{font-size:clamp(7px,.62cqw,10px);letter-spacing:.12em;color:#ffb68c;margin-top:.4cqw}
.slide{--dx:0%;--dy:0%;position:absolute;left:20%;top:12%;width:60%;height:68%;display:flex;flex-direction:column;padding:2.2cqw 2.6cqw 1.3cqw;background:linear-gradient(180deg,#fbfaf6,#efece3);color:#14212b;border-radius:3px;box-shadow:0 0 0 1px #ffffff55,0 0 4cqw color-mix(in srgb,var(--glow) 45%,transparent),0 3cqw 6cqw #000a;overflow:hidden}
.slide::before{content:"";position:absolute;inset:0 auto 0 0;width:.45cqw;background:var(--accent)}
.slide::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(115deg,#ffffff00 35%,#ffffffb0 50%,#ffffff00 65%) no-repeat;background-size:250% 100%;background-position:150% 0;mix-blend-mode:soft-light}
.slide-head{display:flex;justify-content:space-between;gap:2cqw;font-size:clamp(7px,.68cqw,11px);letter-spacing:.16em;font-weight:700;color:#6c7a83;border-bottom:1px solid #14212b1f;padding-bottom:.8cqw}
#slide-part{color:var(--accent);text-align:right}
#dialogue-line{font-size:clamp(15px,2.15cqw,36px);line-height:1.15;letter-spacing:-.02em;margin:1.3cqw 0 1.2cqw;color:#0d1820;max-width:95%}
.slide-body{flex:1;min-height:0;display:flex;gap:2.4cqw;align-items:flex-start}
#slide-points{flex:1.35;list-style:none;margin:0;padding:0}
#slide-points li{position:relative;padding:0 0 0 1.6cqw;margin:0 0 .85cqw;font-size:clamp(11px,1.22cqw,20px);line-height:1.35;color:#24343e}
#slide-points li::before{content:"";position:absolute;left:0;top:.5em;width:.6cqw;height:.6cqw;background:var(--accent);transform:rotate(45deg)}
.slide-aside{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:.8cqw}
.figure{background:#14212b0b;border-top:2px solid var(--accent);padding:.7cqw .9cqw}
.figure b{display:block;font-size:clamp(13px,1.6cqw,27px);color:var(--accent);letter-spacing:-.02em}
.figure span{font-size:clamp(7px,.72cqw,12px);color:#55656f;letter-spacing:.04em}
.chain{grid-column:1/-1;list-style:none;margin:0;padding:0;display:flex;flex-direction:column;align-items:stretch;gap:.9cqw}
.chain li{position:relative;text-align:center;padding:.65cqw;font-size:clamp(9px,.95cqw,16px);font-weight:700;color:#0d1820;background:#14212b0b;border:1px solid color-mix(in srgb,var(--accent) 55%,transparent)}
.chain li+li::before{content:"↓";position:absolute;top:-1.05cqw;left:50%;transform:translateX(-50%);font-size:clamp(8px,.8cqw,13px);color:var(--accent)}
.slide-foot{display:flex;align-items:center;gap:1.4cqw;border-top:1px solid #14212b1f;padding-top:.9cqw;margin-top:.6cqw}
#slide-source{flex:1;font-size:clamp(7px,.66cqw,11px);color:#6c7a83;font-style:italic}
#speech-cue{font-size:clamp(7px,.7cqw,12px);color:#6c7a83}
#continue{display:flex;align-items:center;gap:8px;font-size:clamp(9px,.75cqw,12px);padding:.45cqw .8cqw;background:#14212b;color:#f1f6f6;border-color:#14212b}
#continue:disabled{background:#14212b18;color:#7d8a92;border-color:#14212b20}#continue small{font-size:10px;opacity:.65}
.slide .choices{display:flex;gap:1cqw;margin:.4cqw 0 .2cqw}
.slide .choices button{flex:1;text-align:left;padding:.9cqw;font-size:clamp(10px,1cqw,16px);background:#fff;color:#14212b;border:1px solid #14212b30}
.slide .choices button b{color:#0d1820}.slide .choices button span{display:block;font-size:clamp(8px,.75cqw,12px);color:#55656f;margin-top:.35cqw}
.slide .choices button.selected{background:color-mix(in srgb,var(--accent) 14%,#fff);border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.slide.deciding .slide-aside{display:none}.slide.deciding #slide-points li{margin-bottom:.4cqw}
#game:has(#dialogue:not([hidden])) :is(.mission,.chapter-map,.case-panel,.controls,.interaction){opacity:0;transition:opacity .25s}
/* Entrance: the slide leaves the NPC, unfolds like a projector, flickers, then the content builds. */
.slide.enter{animation:slideFly .62s cubic-bezier(.2,.8,.2,1) both,projector .5s .55s steps(1,end) both}
.slide.enter::after{animation:sheen .9s .6s ease both}
.slide.enter #dialogue-line,.slide.enter .slide-head,.slide.enter .slide-foot{animation:contentUp .45s .7s ease both}
.slide.enter #slide-points li,.slide.enter .figure,.slide.enter .chain li{animation:pointIn .45s calc(.95s + var(--i)*.16s) ease both}
.slide.swap #dialogue-line,.slide.swap .slide-head{animation:swapIn .4s ease both}
.slide.swap #slide-points li,.slide.swap .figure,.slide.swap .chain li{animation:pointIn .4s calc(.2s + var(--i)*.14s) ease both}
.slide.swap::after{animation:sheen .7s ease both}
@keyframes stageDim{from{opacity:0}to{opacity:1}}
@keyframes presenterIn{from{opacity:0;transform:translateX(-20px)}to{opacity:1;transform:none}}
@keyframes slideFly{0%{opacity:0;transform:translate(var(--dx),var(--dy)) scale(.04);clip-path:inset(48% 0 48% 0)}45%{opacity:1;transform:translate(calc(var(--dx)*.25),calc(var(--dy)*.25)) scale(.55);clip-path:inset(48% 0 48% 0)}70%{transform:none;clip-path:inset(46% 0 46% 0)}100%{transform:none;clip-path:inset(0 0 0 0)}}
@keyframes projector{0%{filter:brightness(1.6)}20%{filter:brightness(.7)}35%{filter:brightness(1.25)}50%{filter:brightness(.9)}100%{filter:none}}
@keyframes sheen{from{background-position:150% 0}to{background-position:-60% 0}}
@keyframes contentUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes pointIn{from{opacity:0;transform:translateX(-14px)}to{opacity:1;transform:none}}
@keyframes swapIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}
@media(max-width:900px){.presenter .portrait{width:72px;height:128px}.presenter{left:2.5%;width:15%}.slide{padding:2cqw 2.4cqw 1.1cqw}}
@media(prefers-reduced-motion:reduce){.slide-stage,.presenter,.slide,.slide *,.slide::after{animation:none!important}}
/* Clean play HUD: only the guidance (objective, route, interaction prompt) stays on screen. */
#game.playing .brand,#game.playing #controller-status,#game.playing .chapter-map,#game.playing .controls,.mission .eyebrow,.mission .progress{display:none}
#game.playing .hud{justify-content:flex-end}#game.playing .hud-right{opacity:.22;transition:opacity .2s}#game.playing .hud-right:hover,#game.playing .hud-right:focus-within{opacity:1}
.mission,#game.door-ready .mission{top:auto;bottom:3.5%;left:50%;right:auto;transform:translateX(-50%);width:auto;max-width:70%;display:flex;align-items:baseline;gap:.9em;padding:.75em 1.4em;background:#04111aee;border:1px solid #80e3cf66;border-left:4px solid #80e3cf;border-radius:4px;box-shadow:0 8px 30px #000a;text-shadow:none}
.mission h2{margin:0;white-space:nowrap;font-size:clamp(15px,1.7cqw,28px);color:#f4fffc}
.mission h2::before{content:"➜ ";color:#80e3cf}
.mission p{margin:0;font-size:clamp(12px,1.15cqw,19px);color:#d2e4ea;line-height:1.35}
.paris-scene .mission{border-color:#e9bf8766;border-left-color:#e9bf87}.paris-scene .mission h2::before{color:#e9bf87}
.checkpoint-scene .mission{border-color:#c1abed66;border-left-color:#c1abed}.checkpoint-scene .mission h2::before{color:#c1abed}
.interaction{bottom:13%;font-size:clamp(13px,1.1cqw,18px)}
@media(max-width:900px){.mission{max-width:86%;padding:.5em .9em}}
/* Chapter 1: full-screen slides, the speaker in a column on the left, animated diagrams on the right. */
.deck-mode .slide-stage{display:grid;grid-template-columns:21% 1fr;background:#030a10}
.deck-mode .presenter{position:relative;left:auto;bottom:auto;width:auto;height:100%;padding:3.4cqh 1.6cqw;justify-content:flex-end;gap:.8cqh;background:radial-gradient(ellipse at 50% 68%,color-mix(in srgb,var(--who,#9df2d4) 24%,transparent),transparent 62%),linear-gradient(180deg,#0a1d29,#050f17);border-right:1px solid #ffffff14;overflow:hidden}
.deck-mode .presenter .portrait{width:100%;height:56cqh;flex-shrink:0;background:none;border:0;box-shadow:none;margin-bottom:1.2cqh;overflow:hidden}
.deck-mode .presenter .portrait::after{content:"";position:absolute;left:14%;right:14%;bottom:0;height:3cqh;background:radial-gradient(ellipse,#000a,transparent 70%)}
.deck-mode .presenter .portrait img{bottom:1.2cqh;z-index:1;filter:drop-shadow(0 0 1.4cqw color-mix(in srgb,var(--who,#9df2d4) 45%,transparent));animation:speakerIn .55s ease both}
.deck-mode .presenter .portrait span{z-index:2;left:0;top:0;font-size:1.3cqw;font-weight:800;color:#ffffff4a}
.deck-mode .presenter h2{font-size:2.8cqw;letter-spacing:-.02em}
.deck-mode .presenter .eyebrow{font-size:.78cqw;color:var(--who,#9df2d4)}
.deck-mode #live-label{font-size:.85cqw;color:#ff9f80;animation:livePulse 1.6s ease-in-out infinite}
.presenter-next{display:flex;align-items:center;gap:.9cqw;width:100%;margin-top:2cqh;padding-top:2cqh;border-top:1px solid #ffffff18;opacity:.72}
.presenter-next .mini{position:relative;overflow:hidden;width:3.4cqw;height:10cqh;flex-shrink:0}
.presenter-next img{position:absolute;max-width:none;image-rendering:pixelated;bottom:0;left:0;filter:saturate(.6)}
.presenter-next small{display:block;font-size:.68cqw;letter-spacing:.16em;color:#86a0aa;margin-bottom:.5cqh}.presenter-next b{font-size:1.3cqw}
.deck-mode .slide{position:relative;left:auto;top:auto;width:auto;height:100%;border-radius:0;padding:3.4cqh 3cqw 2.6cqh;color:#eaf4f6;background:radial-gradient(ellipse at 75% 0%,#14384955,transparent 60%),linear-gradient(160deg,#0b1c27,#060f16 72%);box-shadow:none}
.deck-mode .slide::before{width:.3cqw;background:linear-gradient(var(--who,#9df2d4),transparent)}
.deck-mode .slide::after{opacity:.2}
.deck-mode .slide-head{flex-wrap:wrap;align-items:center;border:0;padding:0;font-size:.74cqw;color:#7f98a3}
.deck-mode #slide-part{order:3;flex-basis:100%;text-align:left;margin-top:3.2cqh;font-size:.95cqw;color:var(--who,#9df2d4)}
.deck-mode #dialogue-line{font-size:3.3cqw;line-height:1.08;color:#f6fbfb;margin:1.2cqh 0 2.6cqh;max-width:none}
.deck-mode .slide-body{gap:2.6cqw;align-items:stretch}
.deck-mode .slide-aside{display:none}
.slide-visual{flex:2.15;min-width:0;min-height:0;display:flex;align-items:center;justify-content:center}
.slide-visual svg{width:100%;height:100%;overflow:visible}
.deck-mode #slide-points{flex:1;display:flex;flex-direction:column;justify-content:center;gap:1.8cqh}
.deck-mode #slide-points li{margin:0;padding:1.8cqh 1.2cqw 1.8cqh 1.4cqw;font-size:1.28cqw;line-height:1.35;color:#d7e7eb;background:#ffffff07;border:1px solid #ffffff12;border-left:3px solid var(--who,#9df2d4);border-radius:4px}
.deck-mode #slide-points li::before{display:none}
.deck-mode .slide.enter #slide-points li{animation-delay:calc(1.6s + var(--i)*.35s)}
.deck-mode .slide.swap #slide-points li{animation-delay:calc(.9s + var(--i)*.35s)}
.deck-mode .slide-foot{border-color:#ffffff14;padding-top:1.6cqh;margin-top:1.6cqh}
.deck-mode #slide-source,.deck-mode #speech-cue{font-size:.8cqw;color:#7f98a3}
.deck-mode #continue{font-size:.85cqw;background:#eaf4f6;color:#08151f;border-color:#eaf4f6}
.deck-mode #continue:disabled{background:#ffffff0d;color:#6f8791;border-color:#ffffff1a}
.turns{display:flex;gap:.45cqw;list-style:none;margin:0;padding:0}
.turns li{display:flex;flex-direction:column;align-items:center;gap:.6cqh;width:4.4cqw}
.turns li::before{content:"";width:100%;height:.55cqh;border-radius:2px;background:#ffffff1c;transition:background .3s}
.turns li.done::before{background:color-mix(in srgb,var(--who) 45%,transparent)}
.turns li.now::before{background:var(--who);box-shadow:0 0 .8cqw var(--who)}
.turns span{font-size:.6cqw;letter-spacing:.1em;text-transform:uppercase;color:#ffffff40}
.turns li.now span{color:var(--who)}
/* Diagram vocabulary: text sizes, colours and shapes are shared by all chapter 1 visuals. */
.slide-visual .vt{fill:#eaf4f6;font-family:GameSans,"Segoe UI",Arial,sans-serif;font-weight:700;letter-spacing:.02em}
.slide-visual .vt-xxs{font-size:10px;letter-spacing:.14em}.slide-visual .vt-xs{font-size:13px;font-weight:600}.slide-visual .vt-s{font-size:16px}.slide-visual .vt-m{font-size:20px}.slide-visual .vt-l{font-size:26px}.slide-visual .vt-xl{font-size:36px;letter-spacing:-.01em}.slide-visual .vt-c{font-size:17px;font-weight:800;letter-spacing:.03em}
.slide-visual .vt-muted{fill:#86a0aa;font-weight:500}.slide-visual .vt-gold{fill:#f0c77e}.slide-visual .vt-teal{fill:#7eeacb}.slide-visual .vt-blue{fill:#8cc0ff}.slide-visual .vt-red{fill:#ff8a78}.slide-visual .vt-ink{fill:#06202a}.slide-visual .vt-bright{fill:#fff8e2}.slide-visual .vt-quote{font-style:italic;font-weight:500}
.v-grid{fill:none;stroke:#9df2d41f;stroke-width:1}
.v-box{fill:#ffffff09;stroke:#ffffff2e;stroke-width:1.2}
.v-hot-box,.v-hot .v-box{fill:#e8b86b14;stroke:#e8b86b99}
.v-glow{filter:drop-shadow(0 0 10px #7eeacb55)}
.v-line-teal{fill:none;stroke:#7eeacb;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.v-line-gold{fill:none;stroke:#e8b86b;stroke-width:2.5}
.v-line-soft{fill:none;stroke:#9df2d455;stroke-width:2}
.v-gold-fill{fill:#e8b86b}.v-teal-fill{fill:#7eeacb}.v-blue-fill{fill:#8cc0ff}
.v-node{fill:#0d2230;stroke:#ffffff40;stroke-width:1.5}
.v-gold-stroke{stroke:#e8b86b;stroke-width:2}.v-blue-stroke{stroke:#8cc0ff;stroke-width:2}.v-teal-stroke{stroke:#7eeacb;stroke-width:2}
.v-core{fill:#e8b86b1f;stroke:#e8b86b;stroke-width:2}
.v-person{fill:#cfe8ee}.v-person-line{fill:none;stroke:#cfe8ee;stroke-width:3;stroke-linecap:round}
.v-orbit{fill:none;stroke:#ffffff22;stroke-dasharray:4 8}
.v-traveller{fill:#fff;filter:drop-shadow(0 0 6px #7eeacb)}
.v-glyph{fill:#7eeacb}.v-glyph .v-cut{fill:none;stroke:#06202a;stroke-width:4;stroke-linecap:round}.v-glyph .v-dot{fill:#06202a}.v-oil{fill:#e8b86b}
.v-icon-line{fill:none;stroke:#eaf4f6;stroke-width:2.5}.v-icon-fill{fill:#eaf4f6}
.v-crowd{fill:#8cc0ff}.v-layer{fill:#e8b86b40;stroke:#e8b86b}.v-pool{fill:#fff3cf1a}
.v-radar{fill:none;stroke:#7eeacb1f}.v-sweep-fill{fill:#7eeacb12}
.v-boundary{stroke:#ffffff70;stroke-width:1.5;stroke-dasharray:6 6;animation:vBlur 3s ease-in-out infinite alternate}
.v-bubble-skin{fill:#9df2d40f;stroke:#9df2d4aa;stroke-width:2}.v-shine{fill:#ffffff22}
.v-burst{stroke:#9df2d4;stroke-width:3;stroke-linecap:round}
.v-stamp-box{fill:#ff8a7815;stroke:#ff8a78;stroke-width:3}
.slide{--base:0s}.slide.enter{--base:.95s}.slide.swap{--base:.25s}
.slide-visual :is(.v-pop,.v-fade,.v-draw,.v-growx,.v-drain,.v-dim,.v-bubble,.v-burst-group,.v-late,.v-stamp){animation-delay:calc(var(--base) + var(--d,0s));animation-fill-mode:both}
.v-pop{transform-box:fill-box;transform-origin:center;animation:vPop .55s cubic-bezier(.2,1.4,.4,1)}
.v-fade{animation:vFade .7s ease}
.v-draw{stroke-dasharray:1;stroke-dashoffset:1;animation:vDraw 1s ease}
.v-growx{transform-box:fill-box;transform-origin:left;animation:vGrowX 1.1s cubic-bezier(.3,.8,.3,1)}.slide-visual .v-slow{animation-duration:2.2s}
.v-drain{transform-box:fill-box;transform-origin:bottom;animation:vDrain 2.8s ease-in-out}
.v-dim{animation:vDim 2.6s ease}
.v-flow{stroke-dasharray:6 8;animation:vFlow .9s linear infinite}
.v-ripple{fill:none;transform-box:fill-box;transform-origin:center;animation:vRipple 2.4s ease-out infinite}
.v-pulse{transform-box:fill-box;transform-origin:center;animation:vPulse 1.6s ease-in-out infinite}
.v-spin{transform-box:fill-box;transform-origin:center;animation:vSpin 40s linear infinite}
.v-swing{transform-origin:400px 0;animation:vSwing 5s ease-in-out infinite alternate}
.v-sweep{transform-origin:610px 210px;animation:vSpin 6s linear infinite}
.v-bubble{transform-box:fill-box;transform-origin:center;animation:vBubble 2.6s ease}
.v-burst-group{transform-box:fill-box;transform-origin:center;animation:vBurst .7s ease-out}
.v-late{transform-box:fill-box;transform-origin:center;animation:vPop .8s ease}
.v-stamp{transform-box:fill-box;transform-origin:center;animation:vStamp .45s cubic-bezier(.2,1.6,.4,1)}
@keyframes speakerIn{from{opacity:0;transform:translateY(3%)}to{opacity:1;transform:none}}
@keyframes livePulse{50%{opacity:.45}}
@keyframes vPop{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:none}}
@keyframes vFade{from{opacity:0}to{opacity:1}}
@keyframes vDraw{to{stroke-dashoffset:0}}
@keyframes vGrowX{from{transform:scaleX(0)}to{transform:none}}
@keyframes vDrain{from{transform:none}to{transform:scaleY(.18)}}
@keyframes vDim{0%{opacity:0}25%{opacity:1}100%{opacity:.38}}
@keyframes vFlow{to{stroke-dashoffset:-14}}
@keyframes vRipple{from{transform:scale(1);opacity:.9}to{transform:scale(3.2);opacity:0}}
@keyframes vPulse{50%{transform:scale(1.25)}}
@keyframes vSpin{to{transform:rotate(360deg)}}
@keyframes vSwing{from{transform:rotate(-7deg)}to{transform:rotate(7deg)}}
@keyframes vBlur{to{opacity:.2}}
@keyframes vBubble{0%{opacity:0;transform:scale(.6)}15%{opacity:1;transform:none}40%{transform:scale(1.03,.97)}60%{transform:scale(.98,1.02)}80%{opacity:1;transform:none}88%{opacity:.7;transform:scale(1.18)}100%{opacity:0;transform:scale(1.35)}}
@keyframes vBurst{0%{opacity:0;transform:scale(.8)}30%{opacity:1}100%{opacity:0;transform:scale(1.25)}}
@keyframes vStamp{from{opacity:0;transform:scale(2.4) rotate(-3deg)}to{opacity:1;transform:rotate(-8deg)}}
@media(prefers-reduced-motion:reduce){.slide-visual .v-draw{stroke-dashoffset:0}.slide-visual .v-bubble,.slide-visual .v-burst-group{display:none}.slide-visual .v-dim{opacity:.38}.slide-visual .v-drain{transform:scaleY(.18)}.slide-visual .v-stamp{transform:rotate(-8deg)}.deck-mode .presenter .portrait img,.deck-mode #live-label{animation:none}}
/* Chapter 2 diagram vocabulary. */
.slide-visual .vt-xxl{font-size:64px;letter-spacing:-.03em}
.v-red-stroke{stroke:#ff8a78;stroke-width:2}.v-red-core{fill:#ff8a7826;stroke:#ff8a78;stroke-width:2.5}.v-red-fill{fill:#ff8a78}.v-muted-fill{fill:#ffffff33}
.v-line-red{fill:none;stroke:#ff8a78;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.v-paper{fill:#ffffff26}
.v-mark-no{fill:none;stroke:#ff8a78;stroke-width:3.5;stroke-linecap:round}.v-mark-yes{fill:none;stroke:#7eeacb;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round}
.v-strike{fill:none;stroke:#ff8a78;stroke-width:3;stroke-linecap:round}
.v-ring-a{fill:#ffffff05;stroke:#ff8a7866;stroke-width:1.5}.v-ring-b{fill:#ffffff06;stroke:#e8b86b77;stroke-width:1.5}.v-ring-c{fill:#ffffff08;stroke:#c9b4ef88;stroke-width:1.5}
.v-alarm{fill:none;stroke:#ff8a78;stroke-width:3;transform-box:fill-box;transform-origin:center;animation:vRipple 1.6s ease-out infinite}
.v-shirt-neutral{fill:#d9dee4;stroke:#ffffff80;stroke-width:2}.v-shirt-brand{fill:#b8323a;stroke:#ffb0a8;stroke-width:2}
.v-badge{fill:#f2d48a}.v-sponsor{fill:#f6f1e4}
.v-ghost{fill:none;stroke:#ffffff40;stroke-width:1.5;stroke-dasharray:4 4}
.v-neutral-box{fill:#ffffff12;stroke:#ffffffaa}
.v-trophy{fill:#e8b86b;stroke:#e8b86b;stroke-width:3}
.v-rope{fill:none;stroke:#e8b86baa;stroke-width:4;stroke-dasharray:10 6;animation:vFlow 1.4s linear infinite}
.v-tug{animation:vTug 2.2s ease-in-out infinite alternate}
.v-boycott{stroke:#ff8a78;stroke-width:3;stroke-dasharray:8 8;animation:vBlinkLine 1.2s steps(2,end) infinite}
.v-warn{fill:#ff8a78}
.v-lock-red{fill:#ff8a7833;stroke:#ff8a78;stroke-width:3}.v-lock-teal{fill:#7eeacb33;stroke:#7eeacb;stroke-width:3}
.v-war-bar{fill:#ff8a7830;stroke:#ff8a7866}
.v-float{animation:vFloat 4s ease-in-out infinite alternate}
.v-shake{animation:vShake .6s ease}
.v-vanish{animation:vVanish .8s ease}
.v-blink{animation:vFade .4s ease}
.slide-visual :is(.v-shake,.v-vanish,.v-blink){animation-delay:calc(var(--base) + var(--d,0s));animation-fill-mode:both}
@keyframes vTug{from{transform:translateX(-14px)}to{transform:translateX(14px)}}
@keyframes vBlinkLine{50%{opacity:.25}}
@keyframes vFloat{from{transform:translateY(-4px)}to{transform:translateY(4px)}}
@keyframes vShake{0%,100%{transform:none}20%{transform:translateX(-8px)}40%{transform:translateX(7px)}60%{transform:translateX(-5px)}80%{transform:translateX(3px)}}
@keyframes vVanish{from{opacity:1}to{opacity:0}}
@media(prefers-reduced-motion:reduce){.slide-visual .v-vanish{opacity:0}}
/* Chapter 3 diagram vocabulary. */
.v-growy{transform-box:fill-box;transform-origin:bottom;animation:vGrowY 1s cubic-bezier(.3,.8,.3,1)}
.slide-visual .v-growy{animation-delay:calc(var(--base) + var(--d,0s));animation-fill-mode:both}
.v-pillar{fill:#bda5ed1f;stroke:#bda5ed99;stroke-width:1.5}
.v-roof{fill:#bda5ed33;stroke:#bda5ed;stroke-width:2}
.v-axis{fill:none;stroke:#ffffff40;stroke-width:1.5}
.v-chain-tag{fill:#e8b86b;stroke:#fff3cf;stroke-width:1.5}
.slide-visual .v-hatch{fill:#ffffff08;stroke-dasharray:6 6}
.v-beam-post{fill:none;stroke:#ffffff55;stroke-width:6;stroke-linecap:round}
.v-beam-arm{fill:none;stroke:#e8b86b;stroke-width:5;stroke-linecap:round}
.v-string{fill:none;stroke:#ffffff55;stroke-width:1.5}
.v-pan{fill:#ffffff12;stroke:#ffffff66;stroke-width:2}.v-pan-hot{fill:#e8b86b2a;stroke:#e8b86b}
.v-tilt{transform-origin:400px 110px;animation:vTilt 1.6s cubic-bezier(.3,1.4,.5,1) both;animation-delay:calc(var(--base) + .6s)}
.v-red-box{fill:#ff8a7812;stroke:#ff8a7899}
.v-pulse-soft{animation:vSoft 1.8s ease-in-out infinite}
@keyframes vGrowY{from{transform:scaleY(0)}to{transform:none}}
@keyframes vTilt{from{transform:rotate(0)}to{transform:rotate(8deg)}}
@keyframes vSoft{50%{opacity:.4}}
@media(prefers-reduced-motion:reduce){.slide-visual .v-tilt{transform:rotate(8deg)}}
.howto{z-index:25;display:grid;grid-template-rows:auto 1fr auto auto;row-gap:2.6cqh;padding:6cqh 6cqw 5cqh;background:radial-gradient(ellipse at 50% 52%,#0f3a3a99,transparent 62%),linear-gradient(110deg,#04101bfd,#06141ffa 55%,#071b2bf5);animation:howtoIn .45s ease both}
.howto-head h2{font-size:clamp(22px,3.6cqw,60px);letter-spacing:-.045em;line-height:1;margin:1.4cqh 0 0;font-weight:900}.howto-head em{font-style:normal;color:#9cf3d5}
.howto-pad{display:flex;justify-content:center;align-items:center;min-height:22cqh}.howto-pad svg{width:100%;height:100%;font-family:GameSans,"Segoe UI",Arial,sans-serif}
.hp-shell{fill:url(#hp-shell);stroke:#5d7c8a;stroke-width:2.5}.hp-sheen{fill:none;stroke:#ffffff1c;stroke-width:3;stroke-linecap:round}.hp-bumper{fill:#1a2832;stroke:#4a6371;stroke-width:2}
.hp-dim{fill:#0f1a21;stroke:#34495480;stroke-width:2}.hp-well{fill:#0a1218;stroke:#3a4e59;stroke-width:2}.hp-well-on{stroke:#9df2d4aa;stroke-width:3}.hp-grip{fill:none;stroke:#2e7a66;stroke-width:2;stroke-dasharray:3 4}
.hp-halo{fill:#9df2d4;opacity:.28}.hp-ring{fill:#0a1218;stroke:#9ce0b6;stroke-width:2}
.hp-a{font-size:22px;font-weight:900;fill:#0b2a1a;text-anchor:middle}
.hp-arrows path{fill:#9df2d4;animation:hpArrow 2.4s ease-in-out infinite}
.hp-stick{animation:hpStick 2.4s ease-in-out infinite}
.hp-press{transform-box:fill-box;transform-origin:center;animation:hpPress 1.2s ease-in-out infinite}
.hp-lead{fill:none;stroke:#9df2d4;stroke-width:2;stroke-dasharray:5 6}
.hp-label{font-size:40px;font-weight:900;letter-spacing:.04em;fill:#f4fbfb}.hp-sub{font-size:22px;fill:#9cc1cc}
.howto-flow{list-style:none;margin:0;padding:0;display:flex;justify-content:center;gap:1.4cqw}
.howto-flow li{display:block;line-height:1.7;padding:1.4cqh 1.3cqw;font-size:clamp(10px,1.1cqw,18px);color:#d7e7eb;background:#ffffff08;border:1px solid #ffffff14;border-radius:4px;animation:howtoStep .5s calc(.3s + var(--n)*.15s) ease both}
.howto-flow li:nth-child(1){--n:0}.howto-flow li:nth-child(2){--n:1}.howto-flow li:nth-child(3){--n:2}
.howto-flow b,.howto-flow .key{vertical-align:middle;margin:0 .35em}.howto-flow b{margin-left:0}.howto-flow b{display:inline-grid;place-items:center;width:1.7em;height:1.7em;border-radius:50%;border:1px solid #9df2d4;color:#9df2d4;font-size:.8em}.howto-flow .key{width:1.6em;height:1.6em;font-size:.75em}.howto-flow i{font-style:normal;font-weight:800;color:#ffb68c}
.howto-foot{display:flex;justify-content:space-between;align-items:center;gap:3cqw;border-top:1px solid #ffffff18;padding-top:2.4cqh}
.howto-status{margin:0;font-size:clamp(10px,1cqw,15px);color:#f3c49c}.howto-status.ok{color:#9ce0b6}
@keyframes howtoIn{from{opacity:0}to{opacity:1}}@keyframes howtoStep{from{opacity:0;transform:translateY(1cqh)}to{opacity:1;transform:none}}
@keyframes hpStick{0%,8%,92%,100%{transform:none}17%,25%{transform:translateY(-12px)}34%,42%{transform:translateX(12px)}51%,59%{transform:translateY(12px)}68%,76%{transform:translateX(-12px)}}
@keyframes hpArrow{0%,100%{opacity:.35}50%{opacity:1}}
@keyframes hpPress{0%,60%,100%{transform:none}70%,80%{transform:scale(.86)}}
@media(prefers-reduced-motion:reduce){.howto,.howto-flow li,.hp-stick,.hp-press,.hp-arrows path{animation:none}}
/* Opening sequence (~8.5 s): capital / rules / territory, Riyadh → Paris, then the title fades into the arena. */
/* Opening sequence, ~15 s: boot 0–1.7 · Capital 1.7–4.7 · Rules 4.7–7.7 · Territory 7.7–10.7 · convergence 10.7–12 · title 12–14.9. Mirrors playIntro() in game.js. */
.intro{z-index:26;overflow:hidden;background:radial-gradient(ellipse at 50% 50%,#0b2a2c 0,#040d15 60%,#02070c 100%);animation:introOut .6s 14.6s ease both}
.intro::after{content:"";position:absolute;inset:0;z-index:7;pointer-events:none;background:repeating-linear-gradient(0deg,#ffffff05 0 1px,transparent 1px 3px),radial-gradient(ellipse at 50% 50%,transparent 55%,#000a 100%)}
.intro.out{animation:introSkip .45s ease both}.intro.out>*{animation-play-state:paused}
.intro-fx{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.intro-stage{position:absolute;inset:0;z-index:1;font-family:GameSans,"Segoe UI",Arial,sans-serif;animation:introShake .42s 5.72s linear,introShake .55s 12.03s linear}
.intro-boot{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:2.6cqh;animation:introBoot 1.75s ease both}
.intro-boot .eyebrow{font-size:clamp(9px,1cqw,15px);letter-spacing:.42em}
.ib-line{display:flex;align-items:center;gap:.8em;min-height:1.3em;margin:0;font:600 clamp(11px,1.2cqw,20px)/1 ui-monospace,Menlo,Consolas,monospace;letter-spacing:.14em;color:#9cf3d5}
.ib-line i{font-style:normal;color:#5d7884}
.ib-caret{width:.6em;height:1.1em;background:#9cf3d5;animation:introCaret .5s steps(1) infinite}
.ib-meter{width:min(36cqw,520px);height:3px;background:#9df2d41f;overflow:hidden}
.ib-meter i{display:block;height:100%;background:linear-gradient(90deg,#9cf3d5,#c9b4ef,#edca99);transform-origin:left;animation:introBar 1.15s .3s cubic-bezier(.6,0,.3,1) both}
.intro-scan{position:absolute;left:0;right:0;top:50%;height:2px;background:linear-gradient(90deg,transparent,#9df2d4,transparent);box-shadow:0 0 2cqw #9df2d4;transform-origin:center;opacity:0;animation:introScan .7s 1.5s ease-out both}
/* Acts: each child times itself from the act start (--t). */
.ia{position:absolute;inset:0;opacity:0;--len:3s;animation:iaShow var(--len) var(--t) linear both}
.ia-head{position:absolute;left:0;right:0;top:14%;display:flex;flex-direction:column;align-items:center;text-align:center}
.ia-word{position:relative;margin:0;font-size:clamp(44px,10cqw,170px);font-weight:900;letter-spacing:-.06em;line-height:.9;color:var(--c);text-shadow:0 0 2.5cqw color-mix(in srgb,var(--c) 30%,transparent);animation:iaWord .9s var(--t) cubic-bezier(.2,.8,.2,1) both}
.ia-sub{margin:2.2cqh 0 0;font-size:clamp(10px,1.15cqw,18px);letter-spacing:.32em;text-transform:uppercase;color:#b9cdd6;opacity:0;animation:introUp .5s calc(var(--t) + .35s) ease both}
.ia-sub::before{content:"";display:block;width:4cqw;height:2px;margin:0 auto 1.8cqh;background:var(--c);transform:scaleX(0);animation:introRule .5s calc(var(--t) + .45s) ease both}
.ia-sub span{color:var(--c);font-weight:800;font-variant-numeric:tabular-nums}
.glitch::before,.glitch::after{content:attr(data-text);position:absolute;inset:0;pointer-events:none;clip-path:inset(0 0 100% 0)}
.glitch::before{color:#ff4d7a;animation:introGlitchA .6s calc(var(--t) + .05s) steps(1) both}
.glitch::after{color:#41d9ff;animation:introGlitchB .6s calc(var(--t) + .1s) steps(1) both}
/* I · Capital */
.ia-chain{position:absolute;left:0;right:0;top:55%;margin:0;padding:0;list-style:none;display:flex;justify-content:center;align-items:center;gap:3.2cqw}
.ia-chain li{position:relative;padding:1.2cqh 1.4cqw;border:1px solid color-mix(in srgb,var(--c) 45%,transparent);border-radius:4px;background:#04141bcc;font-size:clamp(9px,1.05cqw,17px);font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:#eef6f8;opacity:0;animation:introChain .45s calc(var(--t) + .55s + var(--i) * .22s) cubic-bezier(.2,.8,.2,1) both}
.ia-chain li+li::before{content:"";position:absolute;right:100%;top:50%;width:3.2cqw;height:2px;background:linear-gradient(90deg,transparent,var(--c));transform-origin:left;transform:scaleX(0);animation:introRule .25s calc(var(--t) + .45s + var(--i) * .22s) ease both}
.ia-figures{position:absolute;left:0;right:0;top:69%;display:flex;justify-content:center;gap:8cqw}
.ia-figures p{margin:0;text-align:center;opacity:0;animation:introUp .5s calc(var(--t) + 1.15s) ease both}
.ia-figures p+p{animation-delay:calc(var(--t) + 1.4s)}
.ia-figures b{display:block;font-size:clamp(26px,4.2cqw,72px);font-weight:900;letter-spacing:-.03em;color:var(--c);font-variant-numeric:tabular-nums;text-shadow:0 0 2cqw color-mix(in srgb,var(--c) 35%,transparent)}
.ia-figures small{display:block;margin-top:.8cqh;font-size:clamp(8px,.9cqw,14px);letter-spacing:.2em;text-transform:uppercase;color:#8aa6b2}
/* II · Rules */
.ia-cards{position:absolute;left:50%;top:53%;display:flex;gap:3cqw;transform:translateX(-50%)}
.ia-card{width:clamp(120px,19cqw,320px);padding:2.4cqh 1.6cqw;border:1px solid #c9b4ef44;border-radius:6px;background:linear-gradient(160deg,#1a1630ee,#0a0d18ee);text-align:center;opacity:0;animation:introCardIn .55s calc(var(--t) + .3s) cubic-bezier(.2,.8,.2,1) both,introCardNeutral .5s calc(var(--t) + 1.55s) ease both}
.ia-card small{display:block;font-size:clamp(8px,.8cqw,12px);letter-spacing:.24em;color:#8aa6b2}
.ia-card b{display:block;margin-top:1.3cqh;font:900 clamp(16px,2.3cqw,40px)/1 ui-monospace,Menlo,Consolas,monospace;letter-spacing:.04em;color:#eef6f8;white-space:nowrap}
.ia-stamp{position:absolute;left:50%;top:50%;padding:.6cqh 1.4cqw;border:.35cqw solid #ff5a6e;border-radius:6px;background:#1a050acc;color:#ff5a6e;font-size:clamp(20px,3.2cqw,54px);font-weight:900;letter-spacing:.14em;white-space:nowrap;text-shadow:0 0 1.5cqw #ff5a6e88;box-shadow:0 0 2.5cqw #ff5a6e55;opacity:0;transform:translate(-50%,-50%) rotate(-9deg) scale(3);animation:introStamp .3s calc(var(--t) + 1s) cubic-bezier(.5,0,.75,0) both,introStampFade .5s calc(var(--t) + 1.6s) ease both}
/* III · Territory */
.ia-territory .ia-head{top:11.5%}.ia-territory .intro-map{inset:7% 0 -7%}.ia-territory .ia-word{font-size:clamp(36px,7cqw,120px)}
.intro-map{position:absolute;inset:0;width:100%;height:100%;font-family:GameSans,"Segoe UI",Arial,sans-serif;animation:introMap 3s var(--t) ease-out both}
.im-grid path{fill:none;stroke:#9df2d414;stroke-width:1.5}
.im-rings circle{fill:none;stroke:#edca9926;stroke-width:1.5;stroke-dasharray:4 10}
.im-radar{transform-box:view-box;transform-origin:1090px 660px;animation:introRadar 2.2s var(--t) linear infinite}
.im-sweep{fill:#edca99;opacity:.12}.im-beam{stroke:#edca99;stroke-width:2;opacity:.6}
.im-arc{fill:none;stroke:#edca99;stroke-width:3;stroke-dasharray:1 1;stroke-dashoffset:1;filter:drop-shadow(0 0 8px #edca9988);animation:introDraw 1.15s calc(var(--t) + .5s) cubic-bezier(.6,0,.3,1) both}
.im-comet{fill:none;stroke:#fff;stroke-width:7;stroke-linecap:round;stroke-dasharray:.05 1.1;stroke-dashoffset:.05;opacity:0;filter:drop-shadow(0 0 10px #fff);animation:introComet 1.15s calc(var(--t) + .5s) cubic-bezier(.6,0,.3,1) both}
.im-label{font-size:20px;font-weight:800;letter-spacing:.34em;fill:#edca99;opacity:0;animation:introFade .4s calc(var(--t) + 1.05s) both}
.im-city{opacity:0;animation:introFade .35s both}.im-riyadh{animation-delay:calc(var(--t) + .15s);fill:#9cf3d5}.im-paris{animation-delay:calc(var(--t) + 1.6s);fill:#edca99}
.im-city text{font-size:34px;font-weight:900;letter-spacing:.12em}.im-city .im-coord{font-size:18px;font-weight:600;letter-spacing:.14em;fill:#b0d8df}
.im-ring{fill:none;stroke:currentColor;stroke-width:2;transform-box:fill-box;transform-origin:center;animation:introPing 1.2s ease-out infinite}.im-riyadh .im-ring{stroke:#9cf3d5}.im-paris .im-ring{stroke:#edca99}
/* Convergence: the three relationships close into one triangle, then collapse into the title. */
.ia-converge{transform-origin:50% 58%;animation-name:iaImplode}
.ic-tri{position:absolute;inset:0;width:100%;height:100%;font-family:GameSans,"Segoe UI",Arial,sans-serif}
.ic-edge{fill:none;stroke:var(--c);stroke-width:4;stroke-dasharray:1 1;stroke-dashoffset:1;filter:drop-shadow(0 0 10px var(--c));animation:introDraw .4s calc(var(--t) + var(--e)) cubic-bezier(.6,0,.3,1) both}
.ic-node{fill:var(--c);opacity:0;animation:introFade .3s calc(var(--t) + var(--e)) both}
.ic-node text{font-size:30px;font-weight:900;letter-spacing:.2em}
.ic-q{fill:#eef6f8;font-size:30px;font-weight:800;letter-spacing:.18em;opacity:0;animation:introFade .35s calc(var(--t) + .5s) both}
/* Title */
.intro-flash{position:absolute;inset:0;z-index:3;pointer-events:none;background:radial-gradient(circle at 50% 55%,#fff 0,#d8fff2 35%,#9cf3d500 80%);opacity:0;animation:introWhite .8s 11.95s ease-out both}
.intro-wave{position:absolute;left:50%;top:50%;width:12cqw;aspect-ratio:1;border:.25cqw solid #9cf3d5;border-radius:50%;opacity:0;transform:translate(-50%,-50%) scale(.2);animation:introWave 1.2s 12.03s cubic-bezier(.1,.7,.2,1) both}
.intro-wave.w2{border-color:#edca99;animation-delay:12.2s}
.intro-title{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}
.intro-title h1{margin:0;font-size:clamp(56px,11cqw,190px);font-weight:900;letter-spacing:-.065em;line-height:.85}
.intro-title h1 span{display:block;opacity:0;animation:introSlam .7s cubic-bezier(.2,.8,.2,1) both}.intro-title h1 span:first-child{animation-delay:12.05s}.intro-title h1 span:last-child{animation-delay:12.22s}
.intro-title em{font-style:normal;color:#9cf3d5;text-shadow:0 0 4cqw #9cf3d566;animation:introGlow 1.4s 12.9s ease-in-out infinite alternate}
.intro-title .title-rule{margin:3.5cqh auto 2.4cqh;transform:scaleX(0);animation:introRule .5s 12.7s ease both}
.intro-title .chapter-title{margin:0;opacity:0;animation:introUp .5s 12.85s ease both}
.it-trio{display:flex;gap:2.4cqw;margin:2.6cqh 0 0;font-size:clamp(9px,.95cqw,15px);font-weight:800;letter-spacing:.3em;text-transform:uppercase}
.it-trio i{font-style:normal;color:var(--c);opacity:0;animation:introUp .4s calc(13.1s + var(--k) * .12s) ease both}
/* Frame: letterbox, HUD, skip hint, progress. */
.intro-lb{position:absolute;left:0;right:0;z-index:4;height:8cqh;background:#000;animation:introLbIn .7s .05s cubic-bezier(.2,.8,.2,1) both,introLbOut .7s 13.9s cubic-bezier(.6,0,.8,.2) both}
.intro-lb.top{top:0;--dir:-1}.intro-lb.bottom{bottom:0;--dir:1}
.intro-hud,.outro-hud{--h:#9df2d466;position:absolute;inset:10cqh 2.6cqw;z-index:5;pointer-events:none;font:600 clamp(8px,.78cqw,12px)/1 ui-monospace,Menlo,Consolas,monospace;letter-spacing:.16em;color:#8aa6b2;opacity:0;animation:introFade .5s .5s both,introHudOut .5s 13.6s both;background:linear-gradient(var(--h),var(--h)) 0 0/2cqw 2px no-repeat,linear-gradient(var(--h),var(--h)) 0 0/2px 2cqw no-repeat,linear-gradient(var(--h),var(--h)) 100% 0/2cqw 2px no-repeat,linear-gradient(var(--h),var(--h)) 100% 0/2px 2cqw no-repeat,linear-gradient(var(--h),var(--h)) 0 100%/2cqw 2px no-repeat,linear-gradient(var(--h),var(--h)) 0 100%/2px 2cqw no-repeat,linear-gradient(var(--h),var(--h)) 100% 100%/2cqw 2px no-repeat,linear-gradient(var(--h),var(--h)) 100% 100%/2px 2cqw no-repeat}
.ih-rec{position:absolute;left:1.4cqw;top:1.4cqw;display:flex;align-items:center}.ih-rec i{width:.7em;height:.7em;margin-right:.7em;border-radius:50%;background:#ff5a6e;animation:introCaret 1s steps(1) infinite}.ih-rec b{margin-left:1em;font-weight:600;color:#eef6f8;font-variant-numeric:tabular-nums}
.ih-case{position:absolute;right:1.4cqw;top:1.4cqw}
.intro-pips{position:absolute;left:1.4cqw;bottom:1.4cqw;display:flex;gap:2cqw}
.intro-pips i{font-style:normal;opacity:.28;animation:introPip .3s var(--on) both}
.intro-pips i::before{content:"";display:inline-block;width:1.8cqw;height:2px;margin-right:.7em;vertical-align:middle;background:currentColor}
.intro-skip{position:absolute;right:3cqw;bottom:2.4cqh;z-index:6;display:flex;align-items:center;gap:.6em;font-size:clamp(10px,.9cqw,14px);letter-spacing:.14em;text-transform:uppercase;color:#8aa6b2;animation:introUp .5s .6s ease both}.intro-skip .key{width:1.7em;height:1.7em;font-size:.85em}.intro-skip small{color:#5d7884}
.intro-bar{position:absolute;left:0;bottom:0;z-index:6;height:3px;width:100%;background:linear-gradient(90deg,#9cf3d5,#c9b4ef,#edca99);transform-origin:left;animation:introBar 14.9s linear both}
@keyframes introOut{to{opacity:0;visibility:hidden}}
@keyframes introSkip{to{opacity:0;visibility:hidden}}
@keyframes introBoot{0%{opacity:0}8%,86%{opacity:1;transform:none;filter:none}100%{opacity:0;transform:scale(.96);filter:blur(6px)}}
@keyframes introCaret{50%{opacity:0}}
@keyframes introScan{0%{transform:scaleX(0);opacity:1}60%{transform:scaleX(1);opacity:1}100%{transform:scaleX(1);opacity:0}}
@keyframes iaShow{0%{opacity:0}5%{opacity:1}90%{opacity:1;transform:none;filter:none}100%{opacity:0;transform:scale(1.06);filter:blur(10px)}}
@keyframes iaImplode{0%{opacity:0;transform:scale(1.12)}12%{opacity:1;transform:none}72%{opacity:1;transform:none;filter:none}100%{opacity:0;transform:scale(.05);filter:brightness(3) blur(4px)}}
@keyframes iaWord{0%{opacity:0;transform:scale(1.5);letter-spacing:.12em;filter:blur(16px)}60%{opacity:1;filter:none}100%{opacity:1;transform:none;letter-spacing:-.06em}}
@keyframes introGlitchA{0%{clip-path:inset(12% 0 62% 0);transform:translateX(-1.2cqw)}20%{clip-path:inset(58% 0 18% 0);transform:translateX(.9cqw)}40%{clip-path:inset(30% 0 45% 0);transform:translateX(-.6cqw)}60%{clip-path:inset(75% 0 4% 0);transform:translateX(.5cqw)}80%{clip-path:inset(5% 0 80% 0);transform:translateX(-.3cqw)}100%{clip-path:inset(0 0 100% 0);transform:none}}
@keyframes introGlitchB{0%{clip-path:inset(60% 0 15% 0);transform:translateX(1.1cqw)}20%{clip-path:inset(8% 0 70% 0);transform:translateX(-.8cqw)}40%{clip-path:inset(42% 0 30% 0);transform:translateX(.6cqw)}60%{clip-path:inset(20% 0 62% 0);transform:translateX(-.4cqw)}80%{clip-path:inset(70% 0 10% 0);transform:translateX(.2cqw)}100%{clip-path:inset(0 0 100% 0);transform:none}}
@keyframes introChain{0%{opacity:0;transform:translateY(1.5cqh) scale(.9)}60%{opacity:1;border-color:var(--c);box-shadow:0 0 2.4cqw color-mix(in srgb,var(--c) 70%,transparent)}100%{opacity:1;transform:none;box-shadow:0 0 .8cqw color-mix(in srgb,var(--c) 25%,transparent)}}
@keyframes introCardIn{from{opacity:0;transform:translateX(calc(var(--from) * 12cqw)) rotate(calc(var(--from) * 6deg))}to{opacity:1;transform:none}}
@keyframes introCardNeutral{to{opacity:1;border-color:#c9b4ef;box-shadow:0 0 2cqw #c9b4ef44}}
@keyframes introStamp{to{opacity:1;transform:translate(-50%,-50%) rotate(-9deg) scale(1)}}
@keyframes introStampFade{to{opacity:0;transform:translate(-50%,-50%) translateY(-7cqh) rotate(-14deg) scale(.55)}}
@keyframes introShake{0%,100%{transform:none}15%{transform:translate(-.6cqw,.5cqh)}30%{transform:translate(.5cqw,-.5cqh)}45%{transform:translate(-.4cqw,.3cqh)}60%{transform:translate(.3cqw,-.2cqh)}80%{transform:translate(-.1cqw,.1cqh)}}
@keyframes introMap{from{transform:scale(1.12)}to{transform:none}}
@keyframes introRadar{to{transform:rotate(360deg)}}
@keyframes introRule{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes introDraw{to{stroke-dashoffset:0}}
@keyframes introComet{0%{opacity:1;stroke-dashoffset:.05}92%{opacity:1}100%{opacity:0;stroke-dashoffset:-1}}
@keyframes introPing{from{transform:scale(.3);opacity:1}to{transform:scale(1.6);opacity:0}}
@keyframes introFade{from{opacity:0}to{opacity:1}}
@keyframes introWhite{0%{opacity:0}10%{opacity:1}100%{opacity:0}}
@keyframes introWave{0%{opacity:0;transform:translate(-50%,-50%) scale(.2)}4%{opacity:1}100%{opacity:0;transform:translate(-50%,-50%) scale(10)}}
@keyframes introSlam{0%{opacity:0;transform:scale(2.2);filter:blur(18px);text-shadow:-1.5cqw 0 #ff4d7a,1.5cqw 0 #41d9ff}55%{opacity:1;transform:scale(.97);filter:none}100%{opacity:1;transform:none;text-shadow:0 0 0 transparent}}
@keyframes introGlow{to{text-shadow:0 0 6cqw #9cf3d5aa}}
@keyframes introUp{from{opacity:0;transform:translateY(1.2cqh)}to{opacity:1;transform:none}}
@keyframes introBar{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes introLbIn{from{transform:translateY(calc(var(--dir) * 100%))}to{transform:none}}
@keyframes introLbOut{to{transform:translateY(calc(var(--dir) * 100%))}}
@keyframes introHudOut{to{opacity:0}}
@keyframes introPip{to{opacity:1;color:var(--c)}}
@media(prefers-reduced-motion:reduce){.intro-stage{animation:none}.ia,.ia-word,.intro-map,.intro-title h1 span{transform:none!important;filter:none!important}.glitch::before,.glitch::after,.intro-wave,.intro-fx{display:none}.im-ring,.im-radar{animation:none}}
/* Closing sequence after the conclusion (~40 s, then holds on "Thank you" for questions): case closed .6 · timeline 3.6 · answer 12.9 · credits 20.8 · title 33.2 · thank you 37.4. Mirrors playOutro() in game.js. */
.outro{z-index:27;overflow:hidden;font-family:GameSans,"Segoe UI",Arial,sans-serif}
.outro::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 50%,#0b2a2cf2 0,#040d15f7 60%,#02070c 100%);animation:introFade 1.4s both}
.outro::after{content:"";position:absolute;inset:0;z-index:7;pointer-events:none;background:repeating-linear-gradient(0deg,#ffffff05 0 1px,transparent 1px 3px),radial-gradient(ellipse at 50% 50%,transparent 55%,#000a 100%)}
.outro .intro-lb{animation:introLbIn .8s .2s cubic-bezier(.2,.8,.2,1) both}
.outro-hud{animation:introFade .6s .8s both}
.outro-stage{position:absolute;inset:0;z-index:1;animation:introShake .42s 1.45s linear,introShake .5s 33.25s linear,introShake .5s 37.45s linear}
.oa{position:absolute;inset:0;opacity:0;animation:iaShow var(--len) var(--t) linear both}
.oa-head{position:absolute;left:0;right:0;top:13%;text-align:center}
.oa-head .eyebrow,.oa-closed .eyebrow,.oa-final .eyebrow{display:block;font-size:clamp(9px,.95cqw,14px);letter-spacing:.42em;opacity:0;animation:introUp .5s var(--t) both}
.oa-head h2{margin:1.6cqh 0 0;font-size:clamp(24px,4.2cqw,72px);font-weight:900;letter-spacing:-.04em;line-height:1;color:#eef6f8;opacity:0;animation:iaWord .8s calc(var(--t) + .15s) cubic-bezier(.2,.8,.2,1) both}
.oa-head h2 em{font-style:normal;color:#9cf3d5}
/* Case closed */
.oa-closed{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3cqh;text-align:center}
.oa-closed-word{margin:0;padding:1.4cqh 2.6cqw;border:.4cqw solid #9cf3d5;border-radius:8px;font-size:clamp(40px,8cqw,140px);font-weight:900;letter-spacing:-.04em;line-height:1;color:#eef6f8;box-shadow:0 0 3cqw #9cf3d544,inset 0 0 2cqw #9cf3d522;opacity:0;transform:rotate(-4deg) scale(2.6);animation:outroStamp .35s calc(var(--t) + .5s) cubic-bezier(.5,0,.75,0) both}
.oa-closed-word em{font-style:normal;color:#9cf3d5}
.oa-closed-sub{margin:0;font-size:clamp(10px,1.15cqw,18px);letter-spacing:.32em;text-transform:uppercase;color:#b9cdd6;opacity:0;animation:introUp .5s calc(var(--t) + 1s) both}
/* Timeline: the line draws in 6 s and each milestone pops as it is reached (--p = position 0–1). */
.ot{position:absolute;left:8%;right:8%;top:60%;height:2px;background:#9df2d41a}
.ot-line{position:absolute;inset:0;background:linear-gradient(90deg,#9cf3d5,#9cf3d5 30%,#c9b4ef 40%,#c9b4ef 62%,#9cf3d5 72%,#edca99);box-shadow:0 0 1.2cqw #9cf3d566;transform-origin:left;transform:scaleX(0);animation:introRule 6s calc(var(--t) + .6s) linear both}
.ot-m{position:absolute;left:calc(var(--p) * 100%);top:0;width:21cqw;transform:translateX(-50%)}
.ot-m::before{content:"";position:absolute;left:50%;top:-.7cqw;width:1.4cqw;height:1.4cqw;margin-left:-.7cqw;border-radius:50%;background:var(--c);box-shadow:0 0 1.6cqw var(--c);transform:scale(0);animation:outroDot .45s calc(var(--t) + .6s + var(--p) * 6s) cubic-bezier(.2,.8,.2,1.4) both}
.ot-m>div{position:absolute;left:0;right:0;display:flex;flex-direction:column;align-items:center;text-align:center;opacity:0;animation:introUp .5s calc(var(--t) + .7s + var(--p) * 6s) both}
.ot-m.up>div{bottom:2.6cqh;flex-direction:column-reverse}.ot-m.down>div{top:2.6cqh}
.ot-m b{font-size:clamp(14px,1.9cqw,32px);font-weight:900;letter-spacing:.02em;color:var(--c)}
.ot-m span{margin:.8cqh 0;font-size:clamp(8px,.95cqw,15px);line-height:1.35;color:#c4d6dd}
/* Answer */
.oa-tri{position:absolute;left:7%;top:30%;width:36%;height:60%;font-family:GameSans,"Segoe UI",Arial,sans-serif}
.oa-core{fill:#eef6f8;opacity:0;transform-box:fill-box;transform-origin:center;animation:introFade .4s calc(var(--t) + 1.2s) both,outroCore 1.4s calc(var(--t) + 1.2s) ease-in-out infinite alternate}
.oa-points{position:absolute;left:47%;right:7%;top:33%;margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:4cqh}
.oa-points li{padding-left:1.6cqw;border-left:3px solid var(--c);opacity:0;animation:outroSlide .6s calc(var(--t) + 1.4s + var(--k) * 1.3s) cubic-bezier(.2,.8,.2,1) both}
.oa-points b{display:block;font-size:clamp(16px,2.3cqw,40px);font-weight:900;letter-spacing:-.02em;color:var(--c)}
.oa-points span{display:block;margin-top:.8cqh;font-size:clamp(10px,1.2cqw,19px);line-height:1.4;color:#d6e4ea}
/* Credits */
.oc-grid{position:absolute;left:6%;right:6%;top:30%;display:grid;grid-template-columns:repeat(3,1fr);gap:2.6cqw}
.oc-part{opacity:0;animation:introUp .6s calc(var(--t) + .8s + var(--k) * 1.1s) both}
.oc-part h3{margin:0 0 1.6cqh;padding-bottom:1cqh;border-bottom:2px solid var(--c);font-size:clamp(9px,1cqw,15px);letter-spacing:.3em;color:var(--c)}
.oc-people{display:flex;gap:1.2cqw}
.oc-card{flex:1;margin:0;text-align:center}
.oc-portrait{position:relative;overflow:hidden;width:6.2cqw;height:12.5cqw;margin:0 auto;border-radius:6px;background:linear-gradient(160deg,#264454,#122435);border-bottom:3px solid var(--c);box-shadow:0 0 2cqw #0008}
.oc-portrait img{position:absolute;max-width:none;object-fit:fill;image-rendering:pixelated;bottom:-5px;left:0}
.oc-card figcaption{margin-top:1.2cqh}
.oc-card b{display:block;font-size:clamp(13px,1.7cqw,28px);font-weight:900;color:#eef6f8}
.oc-card small{display:block;margin-top:.5cqh;font-size:clamp(6px,.66cqw,11px);line-height:1.3;letter-spacing:.14em;text-transform:uppercase;color:#8aa6b2}
.oc-player{position:absolute;left:0;right:0;top:76%;margin:0;display:flex;justify-content:center;align-items:center;gap:1.2cqw;opacity:0;animation:introUp .6s calc(var(--t) + 5s) both}
.oc-player small{font-size:clamp(8px,.85cqw,13px);letter-spacing:.3em;color:#8aa6b2}
.oc-player b{font-size:clamp(16px,2.2cqw,36px);font-weight:900;color:#9cf3d5;text-shadow:0 0 2cqw #9cf3d555}
.oc-source{position:absolute;left:10%;right:10%;top:84%;margin:0;text-align:center;font-size:clamp(8px,.85cqw,13px);letter-spacing:.06em;color:#6f8b97;opacity:0;animation:introUp .6s calc(var(--t) + 6s) both}
/* Title and thank you */
.oa-title{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.ot-title{margin:0;font-size:clamp(50px,9.5cqw,170px);font-weight:900;letter-spacing:-.065em;line-height:.85}
.ot-title span{display:block;opacity:0;animation:introSlam .7s calc(var(--t) + .05s) cubic-bezier(.2,.8,.2,1) both}.ot-title span:last-child{animation-delay:calc(var(--t) + .22s)}
.ot-title em{font-style:normal;color:#9cf3d5;text-shadow:0 0 4cqw #9cf3d566}
.ot-q{display:flex;gap:3cqw;margin:4.5cqh 0 0;padding:0;list-style:none}
.ot-q li{font-size:clamp(11px,1.45cqw,24px);font-weight:800;letter-spacing:.04em;color:var(--c);opacity:0;animation:introUp .5s calc(var(--t) + 1.1s + var(--k) * .55s) both}
.oa-final{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2.6cqh;text-align:center}
.oa-final .eyebrow{animation-delay:calc(var(--t) + .6s)}
.oa-final h2{margin:0;font-size:clamp(60px,12cqw,210px);font-weight:900;letter-spacing:-.065em;line-height:.85;color:#eef6f8;opacity:0;animation:introSlam .8s calc(var(--t) + .05s) cubic-bezier(.2,.8,.2,1) both}
.oa-final h2 em{font-style:normal;color:#9cf3d5;text-shadow:0 0 4cqw #9cf3d566;animation:introGlow 1.6s calc(var(--t) + 1s) ease-in-out infinite alternate}
.oa-final p{margin:1cqh 0 0;font-size:clamp(16px,2.4cqw,40px);font-weight:800;letter-spacing:.3em;text-transform:uppercase;color:#edca99;opacity:0;animation:introUp .6s calc(var(--t) + 1s) both}
.o-flash{position:absolute;inset:0;z-index:3;pointer-events:none;background:radial-gradient(circle at 50% 50%,#fff 0,#d8fff2 35%,#9cf3d500 80%);opacity:0;animation:introWhite .8s var(--at) ease-out both}
.o-wave{position:absolute;left:50%;top:50%;width:12cqw;aspect-ratio:1;border:.25cqw solid #9cf3d5;border-radius:50%;opacity:0;transform:translate(-50%,-50%) scale(.2);animation:introWave 1.2s var(--at) cubic-bezier(.1,.7,.2,1) both}.o-wave.alt{border-color:#edca99}
.outro-skip,.outro-next{position:absolute;right:3cqw;bottom:2.4cqh;z-index:6;display:flex;align-items:center;gap:.6em;font-size:clamp(10px,.9cqw,14px);letter-spacing:.14em;text-transform:uppercase;color:#8aa6b2}.outro-skip .key,.outro-next .key{width:1.7em;height:1.7em;font-size:.85em}.outro-skip small,.outro-next small{color:#5d7884}
.outro-skip{animation:introUp .5s 1s both,introHudOut .4s 38.6s both}
.outro-next{opacity:0;animation:introUp .5s 39.2s both}
@keyframes outroStamp{to{opacity:1;transform:rotate(-4deg) scale(1)}}
@keyframes outroDot{to{transform:scale(1)}}
@keyframes outroSlide{from{opacity:0;transform:translateX(3cqw)}to{opacity:1;transform:none}}
@keyframes outroCore{from{transform:scale(.8);filter:drop-shadow(0 0 4px #fff)}to{transform:scale(1.3);filter:drop-shadow(0 0 18px #9cf3d5)}}
@media(prefers-reduced-motion:reduce){.outro-stage{animation:none}.oa,.oa-closed-word,.ot-title span,.oa-final h2{filter:none!important}.o-wave,#outro-fx{display:none}.oa-core{animation:introFade .4s both}}