*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --night:#060c1a;--deep:#0e1630;--purple:#191440;--paper:#edf3ff;--gold:#ffd93d;--warm:#ff6b6b;--cool:#4d96ff;
  --teal:#4aff8b;--brass:#c8aa64;--soft:#a6b5d5;--line:rgba(100,132,201,.2);--glass:rgba(8,14,28,.88);
  --shadow:0 30px 100px rgba(0,0,0,.45);--rad:24px;
}
body{
  min-height:100vh;color:var(--paper);font-family:"Trebuchet MS",Verdana,sans-serif;
  background:radial-gradient(circle at top,rgba(74,255,139,.1),transparent 28%),
    radial-gradient(circle at 18% 18%,rgba(77,150,255,.12),transparent 24%),
    radial-gradient(circle at 85% 12%,rgba(255,217,61,.08),transparent 20%),
    linear-gradient(155deg,var(--night),var(--deep) 45%,var(--purple));
}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.08;background-image:radial-gradient(circle,rgba(255,255,255,.5) 1px,transparent 1px);background-size:44px 44px}

/* TOP BAR */
.topbar{width:min(1320px,calc(100% - 40px));margin:0 auto;min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-size:1.42rem;font-weight:900;color:transparent;background:linear-gradient(45deg,var(--warm),var(--gold));-webkit-background-clip:text;background-clip:text;letter-spacing:.04em;text-decoration:none}
.trail{display:flex;align-items:center;gap:10px;color:var(--soft);font-size:.92rem}
.trail a{color:var(--teal);text-decoration:none}

/* SHELL */
.archive-shell{width:min(1320px,calc(100% - 40px));margin:0 auto;padding:12px 0 34px}

/* INTRO */
.intro{display:flex;justify-content:space-between;align-items:end;gap:32px;margin:14px 0 18px}
.eyebrow{font-size:.7rem;color:var(--teal);font-weight:800;text-transform:uppercase;letter-spacing:.2em;margin-bottom:8px}
h1{font:clamp(2.4rem,5vw,4.2rem)/1 Georgia,"Times New Roman",serif;color:var(--paper);letter-spacing:-.04em}
.lede{color:var(--soft);line-height:1.65;max-width:700px;margin-top:10px;font-size:1.02rem}
.legend{display:flex;gap:10px;flex-shrink:0}
.legend span{min-width:80px;text-align:center;padding:12px 10px;border:1px solid rgba(74,255,139,.15);background:rgba(74,255,139,.05);border-radius:16px;color:var(--soft);font-size:.74rem}
.legend strong{display:block;font:1.55rem Georgia,serif;color:var(--teal);margin-bottom:3px}

/* AD ZONE */
.ad-slot{position:relative;width:100%;min-height:84px;margin-bottom:14px;display:flex;justify-content:center;align-items:center;padding:6px;border:1px dashed var(--line);border-radius:14px;overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,.008)),rgba(8,12,28,.6)}
.ad-slot::before{content:"Ad Zone";position:absolute;top:6px;right:10px;color:rgba(166,181,213,.5);font-size:.62rem;letter-spacing:.08em;text-transform:uppercase}
.ad-placeholder{color:#7b89ab;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase}
.ad-slot .adsbygoogle{display:block;width:100%;min-width:240px;min-height:65px}

/* GAME FRAME */
.game-frame{overflow:hidden;border-radius:var(--rad);background:var(--glass);border:1px solid rgba(74,255,139,.16);box-shadow:var(--shadow);backdrop-filter:blur(16px)}

/* HUD */
.hud{min-height:86px;display:grid;grid-template-columns:minmax(280px,1.5fr) minmax(180px,.8fr) auto;gap:20px;align-items:center;padding:14px 20px;background:linear-gradient(90deg,rgba(3,10,20,.93),rgba(8,20,18,.92));border-bottom:1px solid rgba(74,255,139,.12)}
.label{display:block;font-size:.64rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--soft)}
.hud-story strong{font:1.18rem Georgia,serif;color:var(--teal);display:inline-block;margin:4px 0}
.hud-story p{color:#c4d8dc;font-size:.8rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:480px}
.evidence-meter .label{display:flex;justify-content:space-between;margin-bottom:5px}
.evidence-meter b{color:var(--paper);font-weight:700}
.bar{height:8px;background:rgba(255,255,255,.06);border-radius:99px;overflow:hidden}
.bar span{display:block;height:100%;width:100%;border-radius:inherit;transition:width .35s}
.evidence-fill{background:linear-gradient(90deg,var(--teal),var(--gold))}
.nav-buttons{display:flex;gap:7px}

/* VIEWPORT */
.viewport{position:relative;aspect-ratio:16/8.1;min-height:460px;background:#040b16;overflow:hidden}
canvas{display:block;width:100%;height:100%;touch-action:none}

/* OVERLAYS */
.overlay{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:1px solid rgba(74,255,139,.22);border-radius:var(--rad);background:rgba(6,10,22,.96);box-shadow:0 24px 80px rgba(0,0,0,.52);backdrop-filter:blur(16px)}
.overlay[hidden]{display:none}

/* Start */
.start,.finale{width:min(560px,calc(100% - 36px));padding:32px}
.start h2,.finale h2{font:1.9rem Georgia,serif;color:var(--teal);margin-bottom:10px}
.start>p:not(.eyebrow),.finale>p:not(.eyebrow){color:var(--soft);line-height:1.6;margin-bottom:8px;font-size:.94rem}
.finale{border-color:rgba(74,255,139,.4);box-shadow:0 24px 90px rgba(0,0,0,.55),0 0 70px rgba(74,255,139,.07)}
.fn{margin-top:14px;color:var(--teal)!important;font-weight:700}

/* Evidence board */
.evidence-board{width:min(840px,calc(100% - 32px));max-height:calc(100% - 32px);padding:22px;overflow-y:auto;left:50%;top:50%;transform:translate(-50%,-50%);border-color:rgba(74,255,139,.28)}
.board-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.board-header h2{font:1.5rem Georgia,serif;color:var(--teal)}
.board-header div{display:flex;gap:7px}
.board-hint{color:var(--soft);font-size:.79rem;margin-bottom:16px;line-height:1.5}
.board-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:9px;margin-bottom:14px}
.ev-card{padding:11px 13px;border-radius:13px;border:1px solid var(--line);background:rgba(255,255,255,.03);cursor:pointer;transition:all .2s;min-height:65px}
.ev-card.collected{border-color:rgba(74,255,139,.25)}.ev-card.collected:hover{border-color:rgba(74,255,139,.45);background:rgba(74,255,139,.06)}
.ev-card.collected.selected{border-color:var(--gold)!important;background:rgba(255,217,61,.08)!important;box-shadow:0 0 20px rgba(255,217,61,.12)}
.ev-card.locked{opacity:.4;cursor:default;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ev-card strong{display:block;font-size:.84rem;color:var(--teal);margin-bottom:2px}
.ev-act{display:inline-block;font-size:.58rem;color:var(--brass);background:rgba(200,170,100,.1);padding:1px 6px;border-radius:8px;margin-bottom:3px;letter-spacing:.05em}
.ev-card p{font-size:.7rem;color:var(--soft);line-height:1.35}
.ev-card .qmark{font-size:1.5rem;color:var(--soft)}
.board-thesis{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:9px;margin-bottom:14px}
.thesis-slot{padding:10px 12px;border-radius:12px;border:1px solid rgba(74,255,139,.14);background:rgba(74,255,139,.03)}
.thesis-slot.proven{border-color:rgba(74,255,139,.5);background:rgba(74,255,139,.09);box-shadow:0 0 24px rgba(74,255,139,.06)}
.thesis-slot strong{display:block;font-size:.85rem;color:var(--teal);margin-bottom:3px}
.thesis-slot .prov{font-size:.7rem;color:var(--paper);line-height:1.35}
.thesis-slot .req{font-size:.68rem;color:var(--soft);font-style:italic}
.thesis-slot .hint{font-size:.65rem;color:rgba(166,181,213,.5);margin-top:4px;line-height:1.3;font-style:italic}
.selected-count{color:var(--gold);font-size:.76rem;font-weight:700;margin-bottom:7px}

/* Puzzle */
.puzzle{width:min(720px,calc(100% - 32px));max-height:calc(100% - 32px);padding:22px;overflow-y:auto}
.puzzle-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.puzzle-header h2{font:1.35rem Georgia,serif;color:var(--teal)}
.pz-desc{color:var(--soft);font-size:.85rem;margin-bottom:14px;line-height:1.5}
.pwr-ccts{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.cct{padding:10px 14px;background:rgba(255,255,255,.025);border-radius:11px;border:1px solid var(--line);display:flex;align-items:center;gap:10px}
.cct-dot{display:inline-block;width:16px;height:16px;border-radius:50%;flex-shrink:0}
.slr{display:flex;align-items:center;gap:8px;margin-left:auto}
.vl{min-width:36px;text-align:center;font-weight:700;color:var(--gold)}
.sl-b{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--paper);font-size:1.05rem;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .15s}
.sl-b:hover{background:rgba(255,255,255,.1);transform:scale(1.05)}.sl-b:active{transform:scale(.92)}
.clk-ctrls{display:flex;gap:12px;justify-content:center;margin-top:8px;flex-wrap:wrap}
.clk-ctrls div{display:flex;align-items:center;gap:5px}
.clk-ctrls label{color:var(--soft);font-size:.79rem}
.clk-ctrls span{color:var(--gold);font-weight:700;min-width:26px;text-align:center}
.plt-ctrls{display:flex;gap:8px;justify-content:center;margin-top:8px;flex-wrap:wrap}
.plt-ctrls div{display:flex;align-items:center;gap:5px}
.plt-ctrls label{color:var(--soft);font-size:.79rem}
.plt-ctrls span{color:var(--gold);font-weight:700;min-width:40px;text-align:center}
.ciph-box{background:rgba(255,255,255,.025);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:14px;font-size:1.05rem;line-height:1.7;text-align:center}
.ciph-inp{margin-bottom:14px}
.ciph-inp label{display:block;color:var(--soft);margin-bottom:6px;font-size:.79rem}
.ciph-inp input{width:100%;padding:10px 14px;border-radius:11px;border:1px solid var(--line);background:rgba(0,0,0,.35);color:var(--paper);font:1rem monospace;outline:none}
.ciph-inp input:focus{border-color:var(--teal)}
.pz-hint{margin-top:8px;font-size:.78rem;color:var(--soft);min-height:18px}

/* Dialogue */
.dialogue{left:28px;bottom:24px;top:auto;transform:none;width:min(540px,calc(100% - 56px));padding:20px 22px;border-color:rgba(74,255,139,.28)}
.speaker{color:var(--teal);text-transform:uppercase;letter-spacing:.15em;font-size:.68rem;font-weight:800;margin-bottom:8px}
.speech{min-height:50px;color:var(--paper);font-size:.98rem;line-height:1.55;margin-bottom:15px}

/* Pause */
.pause{text-align:center;padding:26px 38px}.pause h2{font:1.8rem Georgia,serif;color:var(--teal);margin-bottom:10px}.pause p{color:var(--soft)}

/* BUTTONS */
button{font:inherit;font-weight:800;border-radius:999px;padding:12px 18px;cursor:pointer;border:1px solid transparent;transition:all .16s}
button:hover{transform:translateY(-1px);filter:brightness(1.06)}
.primary,.prim{background:var(--gold);color:#102030}
.secondary,.sec{background:rgba(255,255,255,.04);color:var(--paper);border-color:var(--line)}
.small,.sm{font-size:.8rem;padding:8px 14px}
.actions{display:flex;gap:9px;margin-top:22px;flex-wrap:wrap}

/* TOAST */
.toast{position:absolute;top:16px;left:50%;transform:translateX(-50%) translateY(-6px);padding:10px 18px;border-radius:999px;background:rgba(6,10,22,.94);border:1px solid rgba(74,255,139,.3);max-width:90vw;text-align:center;opacity:0;transition:opacity .2s,transform .2s;color:var(--paper);pointer-events:none;font-size:.84rem;z-index:100}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* TOUCH CONTROLS */
.touch-controls{display:none;padding:10px 14px;gap:9px;background:rgba(3,10,20,.86);border-top:1px solid rgba(74,255,139,.12);touch-action:none;flex-direction:column}
.touch-nav-row{display:flex;gap:8px}
.touch-nav{flex:1;text-align:center;min-height:40px;font-size:.76rem}
.touch-actions{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.touch-action{min-height:49px;padding:9px 8px;color:var(--paper);font-size:.78rem;border-color:rgba(74,255,139,.18);background:rgba(74,255,139,.07);-webkit-tap-highlight-color:transparent}
.touch-action:active{background:rgba(74,255,139,.16);transform:scale(.96)}
.primary-action{grid-column:1/-1;color:#102030;background:var(--gold);border-color:transparent}.primary-action:active{background:#ffe46a}

/* UNDERBAR */
.underbar{padding:13px 18px;display:flex;align-items:center;justify-content:space-between;gap:18px;background:rgba(3,10,20,.78);border-top:1px solid rgba(74,255,139,.12)}
.controls{display:flex;flex-wrap:wrap;gap:8px 15px;color:var(--soft);font-size:.75rem}
.controls kbd{font:inherit;font-weight:800;padding:3px 6px;border-radius:6px;color:var(--paper);border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);margin-right:3px;font-size:.72rem}

/* RESPONSIVE */
@media (max-width:900px){
  .intro{display:block}.legend{margin-top:16px}
  .hud{grid-template-columns:1fr;gap:11px}.nav-buttons{justify-content:flex-start}
  .viewport{min-height:400px;aspect-ratio:1/.82}.ad-slot{min-height:66px;margin-bottom:10px}
  .underbar{flex-direction:column;align-items:stretch}
  .board-grid{grid-template-columns:1fr 1fr}.board-thesis{grid-template-columns:1fr}
  .evidence-board,.puzzle{padding:16px;max-height:92vh}
}
@media (hover:none),(pointer:coarse),(max-width:760px){
  .touch-controls{display:flex}.underbar .controls{display:none}
  .underbar{padding:9px 14px}.underbar button{align-self:flex-end;padding:7px 13px;font-size:.73rem}
}
@media (max-width:440px){
  .touch-controls{gap:7px;padding:9px 7px}.touch-actions{gap:6px}.touch-action{min-height:44px;font-size:.72rem}
  .board-grid{grid-template-columns:1fr}.start,.finale{padding:22px}.dialogue{left:8px;width:calc(100% - 16px);padding:14px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}