/* Layout: full-bleed 3D river behind a chase camera. Brand and stats top, player meters bottom left, journey track along the bottom edge, centered cards for menu and ending. */
:root{
  --ink:#eef4f2;
  --ink-dim:#a9bdb8;
  --bg:#0b2a3d;
  --panel:rgba(8,24,34,.82);
  --line:rgba(238,244,242,.2);
  --accent:#ff7d5c;
  --accent-ink:#2b0d05;
  --good:#7fe0b4;
  --warn:#ff4d4d;
  --p1:#7fd4e8;
  --p2:#ffb067;
  --display:"Big Shoulders Display","Arial Narrow",Impact,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:dark;
}
html,body{height:100%}
body{
  box-sizing:border-box;margin:0;padding-block:0;
  padding-left:max(16px,env(safe-area-inset-left,0px));
  padding-right:max(16px,env(safe-area-inset-right,0px));
  background:var(--bg);color:var(--ink);font-family:var(--mono);font-size:13px;
  overflow:hidden;touch-action:none;overscroll-behavior:none;user-select:none;-webkit-user-select:none;
}
#stage{position:fixed;inset:0;z-index:0}
#stage canvas{display:block}
#flash{position:fixed;inset:0;z-index:4;background:var(--warn);opacity:0;pointer-events:none;transition:opacity .8s}
#flash.on{opacity:.45;transition:none}
.hud{position:relative;z-index:2;height:100%;box-sizing:border-box;display:flex;flex-direction:column;justify-content:space-between;padding-block:12px;pointer-events:none}
.top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}
.brand{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.wordmark{font-family:var(--display);font-weight:900;font-size:28px;letter-spacing:.05em;text-transform:uppercase;line-height:1}
.stripe{display:block;height:6px;width:100%;min-width:120px;background:repeating-linear-gradient(-45deg,var(--accent) 0 8px,#12202a 8px 16px)}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.chip,.tag{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:3px;padding:0 12px;min-height:34px;display:inline-flex;align-items:center}
.chip{cursor:pointer;pointer-events:auto}
.chip:hover{border-color:var(--ink-dim)}
.chip:focus-visible,.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.tag{color:var(--ink-dim)}
.tag.tide{color:var(--accent)}
.stats{display:flex;gap:10px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:3px;padding:8px 12px;min-width:76px;text-align:right}
.stat.main{min-width:130px}
.label{display:block;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-dim)}
.num{display:block;font-family:var(--display);font-weight:900;font-size:30px;line-height:1.1;font-variant-numeric:tabular-nums}
.stat.main .num{font-size:clamp(38px,7vw,54px);line-height:1}
.unit{font-size:.5em;letter-spacing:.06em;color:var(--ink-dim);margin-left:3px}
.bottom{display:flex;flex-direction:column;gap:8px;align-items:stretch}
.meters{display:flex;flex-direction:column;gap:6px;align-self:flex-start}
.meter{display:flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--line);border-radius:3px;padding:6px 10px;font-variant-numeric:tabular-nums}
.meter .dot{display:inline-block;width:9px;height:9px;border-radius:50%;flex:none}
.meter .who{min-width:40px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim)}
.hp{display:flex;gap:3px}
.hp i{display:block;width:14px;height:9px;background:var(--accent);border-radius:1px}
.hp i.off{background:rgba(238,244,242,.16)}
.bar{position:relative;display:block;width:96px;height:8px;background:rgba(238,244,242,.14);border-radius:1px;overflow:hidden;flex:none}
.bar .e{position:absolute;left:0;top:0;bottom:0;width:100%;background:var(--good)}
.meter.exh .bar .e{background:var(--warn)}
.chg{position:relative;display:block;width:92px;height:10px;background:rgba(238,244,242,.12);border:1px solid var(--line);border-radius:1px;flex:none}
.chg .cf{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--accent)}
.chg .ct{position:absolute;top:-3px;bottom:-3px;width:2px;background:var(--ink);left:0;display:none}
.track{position:relative;height:22px;background:var(--panel);border:1px solid var(--line);border-radius:3px}
.track .seg{position:absolute;top:0;bottom:0;border-right:1px solid var(--line);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-dim);padding:5px 0 0 6px;overflow:hidden;white-space:nowrap;box-sizing:border-box}
.track .pin{position:absolute;top:-4px;width:10px;height:28px;margin-left:-5px;border-radius:2px}
#toast{position:absolute;left:50%;bottom:150px;transform:translateX(-50%);max-width:min(92%,460px);width:max-content;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:3px;padding:10px 14px;opacity:0;transition:opacity .25s}
#toast.show{opacity:1}
#toast .l1{display:block;font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:.04em;text-transform:uppercase}
#toast .l2{display:block;color:var(--ink-dim);font-size:12px;margin-top:2px}
#chapter{position:fixed;left:0;right:0;top:26%;z-index:3;text-align:center;pointer-events:none;opacity:0;transition:opacity 1s;padding:0 24px}
#chapter.show{opacity:1}
#chapter .c1{display:block;font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-dim)}
#chapter .c2{display:block;font-family:var(--display);font-weight:900;font-size:clamp(42px,9vw,86px);letter-spacing:.04em;text-transform:uppercase;line-height:1;margin:6px 0 10px;text-shadow:0 2px 24px rgba(0,0,0,.5)}
#chapter .c3{display:block;max-width:560px;margin:0 auto;font-size:14px;line-height:1.5;color:var(--ink);text-shadow:0 1px 12px rgba(0,0,0,.7)}
#grab{position:fixed;left:0;right:0;top:11%;z-index:4;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;pointer-events:none;padding:0 12px}
#grab .gr{min-width:240px;max-width:330px;padding:12px 18px 10px;text-align:center;background:rgba(6,10,14,.84);border:2px solid var(--ink);border-radius:6px;box-shadow:0 8px 40px rgba(0,0,0,.55)}
#grab .gr.bad{background:rgba(110,12,12,.92)}
#grab .gr.ok{background:rgba(10,80,48,.9)}
#grab .gw{font-family:var(--display);font-weight:900;letter-spacing:.14em;font-size:16px;color:var(--accent)}
#grab .ga{font-family:var(--display);font-weight:900;font-size:88px;line-height:1;color:#5d6a74}
#grab .ga.on{color:#fff;text-shadow:0 0 26px #ffd27a}
#grab .gb{height:8px;background:rgba(255,255,255,.15);margin:6px 0 8px}
#grab .gb i{display:block;height:100%;background:#ffd27a}
#grab .gp{font-family:var(--mono);font-size:14px;letter-spacing:.1em}
#grab .gh{font-size:12px;color:var(--ink-dim);margin-top:4px}
#death{position:fixed;left:0;right:0;top:34%;z-index:3;text-align:center;pointer-events:none;opacity:0;transition:opacity .5s;padding:0 24px}
#death.show{opacity:1}
#death .d1{display:block;font-family:var(--display);font-weight:900;font-size:clamp(40px,8vw,72px);letter-spacing:.04em;text-transform:uppercase;color:var(--warn);text-shadow:0 2px 20px rgba(0,0,0,.6)}
#death .d2{display:block;font-size:14px;margin-top:4px;text-shadow:0 1px 10px rgba(0,0,0,.8)}
#hint{position:fixed;right:max(16px,env(safe-area-inset-right,0px));bottom:70px;z-index:2;background:var(--panel);border:1px solid var(--line);border-radius:3px;padding:8px 10px;font-size:12px;color:var(--ink-dim);opacity:0;transition:opacity .8s;pointer-events:none;max-width:260px;text-align:right}
#hint.show{opacity:1}
#prompt{position:fixed;left:50%;bottom:190px;transform:translateX(-50%);z-index:3;font-family:var(--display);font-weight:700;font-size:26px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);text-shadow:0 2px 14px rgba(0,0,0,.7);opacity:0;pointer-events:none}
#prompt.show{opacity:1}
.overlay{position:fixed;inset:0;z-index:5;display:flex;align-items:center;justify-content:center;padding:16px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));background:rgba(4,14,22,.72);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);overflow:auto}
.card{width:100%;max-width:560px;box-sizing:border-box;background:#0f2433;border:1px solid var(--line);border-radius:4px;padding:24px;max-height:100%;overflow:auto}
.eyebrow{margin:0 0 6px;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-dim)}
.card h1{margin:0 0 10px;font-family:var(--display);font-weight:900;font-size:clamp(50px,13vw,80px);line-height:.95;letter-spacing:.03em;text-transform:uppercase;text-wrap:balance}
.lede{margin:0 0 16px;font-size:14px;line-height:1.55;max-width:58ch}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.btn{font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:3px;cursor:pointer;min-height:44px;padding:0 18px;font-size:13px}
.btn:hover{border-color:var(--ink-dim)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}
.btn.small{min-height:36px;padding:0 12px;font-size:12px}
.btn.on{border-color:var(--accent);color:var(--accent)}
.sub{margin:14px 0 6px;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-dim)}
.keys{margin:0 0 12px;display:grid;gap:7px}
.keys div{display:grid;grid-template-columns:92px 1fr;gap:10px;align-items:baseline}
.keys dt{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.keys dd{margin:0;line-height:1.45;color:var(--ink-dim)}
.fine{margin:0;font-size:12px;line-height:1.5;color:var(--ink-dim)}
#end .lede{font-size:15px}
#loadfail{position:fixed;inset:0;z-index:9;display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;background:var(--bg);line-height:1.6}
#loadfail[hidden]{display:none}
@media (max-width:620px){
  .stats{gap:6px}.stat{min-width:60px;padding:6px 9px}.num{font-size:24px}
  .keys div{grid-template-columns:1fr;gap:2px}
  .bar{width:60px}.chg{width:60px}
  #toast{bottom:170px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
body.clean .stats,body.clean .track,body.clean #zoneName,body.clean #chapter,body.clean #chapters,body.clean #chapSub{display:none!important}
#narr{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);z-index:3;max-width:min(680px,86vw);text-align:center;font-style:italic;font-size:15px;line-height:1.5;color:#e8f3f8;text-shadow:0 1px 10px rgba(0,0,0,.85),0 0 3px rgba(0,0,0,.9);opacity:0;transition:opacity 1s;pointer-events:none}
#narr.show{opacity:1}
#flood{position:fixed;inset:0;z-index:1;pointer-events:none;background:#a8742f;mix-blend-mode:multiply;opacity:0}
@media (max-width:620px){#narr{bottom:200px;font-size:14px}}

/* ---------- title screen ---------- */
.overlay.title{justify-content:flex-start;background:linear-gradient(90deg,rgba(3,12,20,.9) 0%,rgba(3,12,20,.62) 45%,rgba(3,12,20,.12) 100%);backdrop-filter:none;-webkit-backdrop-filter:none;padding-left:max(6vw,env(safe-area-inset-left,0px))}
.tcard{width:100%;max-width:520px;max-height:100%;overflow:auto;box-sizing:border-box;padding:12px 4px 12px 0}
.tcard h1{margin:4px 0 12px;font-family:var(--display);font-weight:900;font-size:clamp(64px,15vw,138px);line-height:.86;letter-spacing:.02em;text-transform:uppercase;display:flex;flex-direction:column}
.tcard h1 .s2{color:var(--accent)}
.stripe.wide{width:100%;max-width:340px;margin:0 0 16px}
.tcard .lede{font-size:15px;max-width:44ch;color:var(--ink)}
.mainbtns{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 14px}
.btn.big{min-height:52px;padding:0 30px;font-size:15px;letter-spacing:.14em}
.tools{display:flex;gap:8px;flex-wrap:wrap}
.panel{margin-top:14px;padding:14px 16px;background:rgba(8,24,34,.78);border:1px solid var(--line);border-radius:4px}
.panel[hidden]{display:none}
.panel .sub{margin-top:0}
.panel .keys{margin:0}
body.clean .previewonly{display:none!important}
.chip.on{border-color:var(--accent);color:var(--accent)}
@media (max-width:700px){
  .overlay.title{justify-content:center;background:linear-gradient(180deg,rgba(3,12,20,.55),rgba(3,12,20,.88));padding-left:max(16px,env(safe-area-inset-left,0px))}
  .tcard{max-width:420px;text-align:left}
}

/* ---------- touch controls ---------- */
#touch{position:fixed;inset:0;z-index:3;pointer-events:none}
#tz{position:absolute;left:0;bottom:0;width:46%;height:62%;pointer-events:auto;touch-action:none}
#tstick{position:fixed;width:112px;height:112px;margin:-56px 0 0 -56px;border-radius:50%;background:rgba(238,244,242,.1);border:2px solid rgba(238,244,242,.4);pointer-events:none}
#tstick[hidden]{display:none}
#tknob{position:absolute;left:50%;top:50%;width:46px;height:46px;margin:-23px 0 0 -23px;border-radius:50%;background:rgba(238,244,242,.55)}
#tbtns{position:absolute;right:max(14px,env(safe-area-inset-right,0px));bottom:max(18px,env(safe-area-inset-bottom,0px));width:236px;height:200px;pointer-events:none}
#tbtns button{position:absolute;pointer-events:auto;touch-action:none;border-radius:50%;border:2px solid rgba(238,244,242,.55);background:rgba(8,24,34,.55);color:var(--ink);font-family:var(--display);font-weight:900;letter-spacing:.1em;-webkit-tap-highlight-color:transparent}
#tbtns button.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
#tb-leap{right:0;bottom:0;width:104px;height:104px;font-size:22px}
#tb-burst{right:112px;bottom:14px;width:88px;height:88px;font-size:18px}
#tb-back{right:78px;bottom:116px;width:64px;height:64px;font-size:13px}
#tb-menu{position:absolute;pointer-events:auto;right:max(14px,env(safe-area-inset-right,0px));top:max(12px,env(safe-area-inset-top,0px));width:44px;height:44px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink);font-family:var(--mono);font-weight:700;letter-spacing:.1em}
body.touch #hint{bottom:240px;max-width:230px}
body.touch #narr{bottom:30%}
body.touch #toast{bottom:36%}
@media (orientation:portrait){#tz{height:50%}#tbtns{transform-origin:100% 100%;transform:scale(.88)}}

/* ---------- countdown and sound settings ---------- */
#count{position:fixed;inset:0;z-index:6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;pointer-events:none;background:rgba(3,12,20,.28)}
#count[hidden]{display:none}
#countNum{font-family:var(--display);font-weight:900;font-size:clamp(120px,26vw,260px);line-height:1;color:var(--ink);text-shadow:0 4px 40px rgba(0,0,0,.5)}
#countNum.pulse{animation:cdp .9s ease-out}
@keyframes cdp{0%{transform:scale(1.35);opacity:0}25%{opacity:1}100%{transform:scale(1);opacity:.9}}
.countSub{font-family:var(--mono);font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);opacity:.8;text-align:center;padding:0 16px}
.srow{display:flex;align-items:center;gap:12px;margin:2px 0 10px;font-size:14px}
.srow span{width:130px;flex:none}
.srow input[type=range]{flex:1;min-width:0;accent-color:var(--accent)}
.chk{display:flex;align-items:center;gap:10px;margin:8px 0;font-size:14px}
.chk input{width:18px;height:18px;accent-color:var(--accent)}
@media (prefers-reduced-motion:reduce){#countNum.pulse{animation:none}}

/* hidden elements must stay hidden even when an id/class sets display */
[hidden]{display:none !important}