:root{--navy:#001824;--teal:#009CB4;--glow:#00C8D4;--deep:#00546C;--white:#FCFCFC;--gold:#FFC857}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--navy);color:var(--white);font-family:Kanit,system-ui,sans-serif;font-weight:500;overflow:hidden;touch-action:manipulation;user-select:none;-webkit-user-select:none}
[hidden]{display:none!important}
button{font-family:inherit}
.panel{background:rgba(0,24,36,.78);border-left:3px solid var(--teal);box-shadow:0 0 18px rgba(0,200,212,.15) inset;
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px))}

/* buttons: big thumb targets, soft squash on press */
.btn{display:block;width:100%;min-height:48px;padding:12px 24px;border-radius:999px;border:1.5px solid var(--glow);background:var(--teal);color:var(--white);font:800 italic 18px Kanit;letter-spacing:.04em;cursor:pointer;
  box-shadow:0 0 16px rgba(0,200,212,.35);margin-top:10px;transition:transform .12s cubic-bezier(.3,1.6,.5,1),box-shadow .2s}
.btn.ghost{background:transparent;box-shadow:none;font-weight:500;font-style:normal}
.btn.big{width:auto;flex:1;min-width:0;padding:14px 20px;font-size:21px;margin:0}
.btn:active,.round:active,.lvl:active,#diffs button:active{transform:scale(.94)}
.round{width:44px;height:44px;border-radius:50%;border:1.5px solid rgba(0,200,212,.6);background:rgba(0,84,108,.35);color:var(--white);font:500 19px Kanit;display:grid;place-items:center;cursor:pointer;flex:none;padding:0;transition:transform .12s cubic-bezier(.3,1.6,.5,1),background .15s}
.round:active{background:var(--teal)}

/* start screen: picture collection to browse, controls in the thumb zone at the bottom */
#start{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;max-width:520px;margin:0 auto;background:radial-gradient(ellipse at 50% 0%,#003a4e 0,var(--navy) 62%)}
.top{flex:none;text-align:center;padding:calc(10px + env(safe-area-inset-top)) 16px 4px}
.logo{width:96px;opacity:.95}
h1{margin:2px 0 0;font:800 italic 40px/1 Kanit;letter-spacing:.02em}
h1 i{color:var(--glow);animation:glowPulse 3.2s ease-in-out infinite}
@keyframes glowPulse{0%,100%{text-shadow:0 0 10px rgba(0,200,212,.45)}50%{text-shadow:0 0 24px rgba(0,200,212,.95)}}
.tag{margin:4px 0 0;color:rgba(252,252,252,.65);font-size:13px}
#levels{flex:1;min-height:0;width:100%;overflow-y:auto;padding:4px 12px 14px;-webkit-overflow-scrolling:touch;scroll-behavior:smooth;overscroll-behavior:contain}
#levels h3{position:sticky;top:0;z-index:2;margin:0 0 6px;padding:10px 0 4px;background:linear-gradient(var(--navy) 70%,transparent);font:800 italic 13px Kanit;letter-spacing:.14em;text-transform:uppercase;color:var(--gc)}
.lvl{display:flex;align-items:center;gap:10px;width:100%;margin:0 0 6px;padding:6px 12px 6px 8px;text-align:left;background:rgba(0,24,36,.78);border:0;border-left:3px solid var(--gc);color:var(--white);font:500 14px Kanit;cursor:pointer;
  content-visibility:auto;contain-intrinsic-size:auto 58px;transition:transform .12s cubic-bezier(.3,1.6,.5,1);clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px))}
.lvl .thumb{width:44px;height:44px;flex:none;image-rendering:pixelated;border-radius:6px;filter:grayscale(1) brightness(.45) contrast(.9);transition:filter .3s}
.lvl.done .thumb{filter:none;box-shadow:0 0 10px rgba(255,200,87,.35)}
.lvl.cur{background:rgba(0,84,108,.55);box-shadow:0 0 0 1.5px var(--glow) inset}
.lvl b{font:800 italic 17px Kanit;min-width:30px;color:var(--gc)}
.lvl span{flex:1;min-width:0;line-height:1.15}
.lvl em{font-style:normal;color:var(--gold);letter-spacing:.06em;font-size:13px;white-space:nowrap}
.dock{flex:none;width:100%;padding:8px 14px calc(12px + env(safe-area-inset-bottom));background:linear-gradient(transparent,rgba(0,12,18,.92) 28%)}
#diffs{display:flex;gap:6px;margin-bottom:8px;background:rgba(0,24,36,.8);border:1.5px solid rgba(0,200,212,.4);border-radius:999px;padding:3px}
#diffs button{flex:1;min-height:40px;border-radius:999px;border:0;background:transparent;color:var(--white);font:500 15px Kanit;cursor:pointer;transition:background .2s,transform .12s cubic-bezier(.3,1.6,.5,1)}
#diffs button.on{background:var(--teal);box-shadow:0 0 14px rgba(0,200,212,.5)}
.dockrow{display:flex;gap:10px;align-items:center}

/* game */
#game{position:fixed;inset:0;display:flex;flex-direction:column;max-width:520px;margin:0 auto}
.hud{display:flex;flex-wrap:wrap;align-items:center;gap:8px;row-gap:4px;padding:8px 12px;margin:env(safe-area-inset-top) 6px 0;flex:none}
.prog{flex:1;min-width:0}
.prog span{display:block;font-style:italic;font-weight:800;font-size:22px;line-height:1;text-align:right;color:var(--glow)}
.barbg{height:5px;background:rgba(0,200,212,.18);margin-top:3px;border-radius:3px;overflow:hidden}
#bar{height:100%;width:0;border-radius:3px;background:linear-gradient(90deg,var(--glow),var(--gold));box-shadow:0 0 8px var(--glow);transition:width .35s ease;position:relative;overflow:hidden}
#bar::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);transform:translateX(-100%);animation:sheen 2.6s ease-in-out infinite}
@keyframes sheen{60%,100%{transform:translateX(100%)}}
.title{order:9;flex:1 0 100%;display:flex;align-items:baseline;gap:8px;min-width:0;line-height:1.1}
.title small{flex:none;color:var(--gc,#3DDC84);font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.title b{flex:1;min-width:0;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:15px}
canvas{flex:1;width:100%;min-height:0;display:block;touch-action:none}
#bonuses{position:absolute;left:0;right:0;top:92px;display:flex;gap:6px;justify-content:center;pointer-events:none;z-index:3}
#bonuses span{padding:3px 10px;border-radius:999px;border:1.5px solid var(--gold);background:rgba(0,24,36,.85);color:var(--gold);font:800 italic 12px Kanit;letter-spacing:.04em;box-shadow:0 0 10px rgba(255,200,87,.45);animation:chipIn .35s cubic-bezier(.3,1.6,.5,1)}
#bonuses span.hot{animation:pulse 1s ease-in-out infinite}
@keyframes chipIn{from{transform:scale(.4);opacity:0}}
@keyframes pulse{50%{box-shadow:0 0 18px rgba(255,200,87,.9)}}
#toast{position:absolute;left:50%;top:118px;transform:translateX(-50%);padding:4px 14px;font-size:13px;z-index:4;pointer-events:none;white-space:nowrap;animation:toastIn .3s ease-out}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,-6px)}}

/* overlays and the bottom sheet */
.overlay{position:fixed;inset:0;background:rgba(0,12,18,.62);display:grid;place-items:center;z-index:5;padding:20px;animation:fadeIn .25s}
@keyframes fadeIn{from{opacity:0}}
.box{width:min(340px,100%);padding:20px 22px 22px;text-align:center;animation:boxIn .35s cubic-bezier(.3,1.4,.5,1)}
@keyframes boxIn{from{transform:translateY(16px) scale(.96);opacity:0}}
.box h2,.sheet h2{margin:0 0 6px;font:800 italic 26px Kanit}
.stars{display:flex;justify-content:center;gap:6px;font-size:44px;color:rgba(255,200,87,.25)}
.stars i{font-style:normal;transform:scale(0);animation:starPop .6s cubic-bezier(.3,1.8,.5,1) forwards}
.stars i.on{color:#FFC857;text-shadow:0 0 16px rgba(255,200,87,.8)}
@keyframes starPop{to{transform:scale(1)}}
.sheet-bg{position:fixed;inset:0;background:rgba(0,12,18,.55);z-index:6;display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .2s}
.sheet{width:min(520px,100%);max-height:88vh;overflow-y:auto;padding:16px 20px calc(18px + env(safe-area-inset-bottom));animation:sheetUp .35s cubic-bezier(.2,1,.3,1);clip-path:polygon(0 14px,14px 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%)}
@keyframes sheetUp{from{transform:translateY(100%)}}
.sheet h2.sec{margin-top:16px;font-size:20px;color:var(--glow)}
.sheet label{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:4px 12px;margin:12px 0;min-height:44px}
.sheet label output{font:800 italic 13px Kanit;color:var(--glow)}
.sheet label.chk{flex-wrap:nowrap;justify-content:flex-start}
input[type=range]{width:100%;height:32px;accent-color:var(--glow)}
input[type=checkbox]{accent-color:var(--glow);width:24px;height:24px}
.hint{margin:6px 0;font-size:13px;opacity:.75;line-height:1.3}
.two{display:flex;gap:8px}.two .btn{margin-top:6px}
textarea{width:100%;margin-top:8px;padding:8px 10px;border-radius:10px;border:1.5px solid rgba(0,200,212,.4);background:rgba(0,12,18,.7);color:var(--white);font:12px/1.3 ui-monospace,Consolas,monospace;resize:none;user-select:text;-webkit-user-select:text}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01s!important;transition-duration:.01s!important}}

#assist{position:absolute;left:50%;top:118px;transform:translateX(-50%);z-index:4;padding:8px 18px;border-radius:999px;border:1.5px solid var(--gold);background:rgba(0,24,36,.92);color:var(--gold);font:800 italic 14px Kanit;cursor:pointer;box-shadow:0 0 14px rgba(255,200,87,.4);animation:chipIn .35s cubic-bezier(.3,1.6,.5,1)}
#assist:active{transform:translateX(-50%) scale(.95)}
#winsum{margin:4px 0 8px}#winsum b{display:block;font:800 italic 20px Kanit;color:var(--gold)}#winsum span{font-size:13px;opacity:.8}

/* phones: no rubber-banding or pull-to-refresh, dynamic viewport height, notch / home-bar safe areas */
html,body{position:fixed;inset:0;width:100%;overscroll-behavior:none;-webkit-touch-callout:none;-webkit-text-size-adjust:100%;text-size-adjust:100%}
#start,#game{height:100vh;height:100dvh;padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
#game{padding-bottom:env(safe-area-inset-bottom)}
.dock{padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right))}
#rotate{display:none;position:fixed;inset:0;z-index:50;background:var(--navy);place-items:center;text-align:center;font:800 italic 26px/1.3 Kanit}
#rotate div{font-size:22px}#rotate small{font:500 14px Kanit;opacity:.7}
@media (orientation:landscape) and (max-height:500px){#rotate{display:grid}}
#a2hs{display:flex;align-items:center;gap:8px;margin:0 14px 6px;padding:8px 8px 8px 14px;border-radius:12px;background:rgba(0,84,108,.55);border:1.5px solid rgba(0,200,212,.5);font-size:13px;line-height:1.25;width:calc(100% - 28px);cursor:pointer}
#a2hs span{flex:1}#a2hs button{flex:none;width:34px;height:34px;border-radius:50%;border:0;background:rgba(0,0,0,.25);color:var(--white);font-size:15px}
@media (max-width:350px){.btn.big{font-size:18px;padding:12px 12px}.round{width:40px;height:40px}h1{font-size:34px}.lvl{gap:8px}.lvl span{font-size:13px}.hud{padding:6px 10px}}
@media (max-height:640px){.logo{display:none}h1{font-size:32px}.top{padding-top:calc(6px + env(safe-area-inset-top))}.tag{font-size:12px}}
@media (min-width:600px){.sheet{border-radius:16px 16px 0 0}}

#syncin{flex:1;min-width:0;margin-top:10px;padding:0 14px;height:48px;border-radius:999px;border:1.5px solid rgba(0,200,212,.5);background:rgba(0,12,18,.7);color:var(--white);font:700 16px Kanit;letter-spacing:.08em;text-transform:uppercase;user-select:text;-webkit-user-select:text}
#synccode{margin:2px 0 8px;padding:12px;border-radius:12px;background:rgba(0,12,18,.7);border:1.5px solid var(--gold);text-align:center;font:800 italic 28px Kanit;letter-spacing:.12em;color:var(--gold);user-select:all;-webkit-user-select:all}
details{margin-top:12px}summary{cursor:pointer;min-height:40px;display:flex;align-items:center;color:var(--glow);font-weight:700}

.pill{margin-top:6px;min-height:36px;padding:6px 16px;border-radius:999px;border:1.5px solid var(--gold);background:rgba(255,200,87,.1);color:var(--gold);font:700 14px Kanit;cursor:pointer;transition:transform .12s cubic-bezier(.3,1.6,.5,1)}
.pill:active{transform:scale(.94)}

.two .btn{width:auto;flex:1;min-width:0;padding-left:12px;padding-right:12px}
.row{display:flex;gap:8px;align-items:center;margin:6px 0 10px}
.row #syncin{flex:1 1 0;min-width:0;margin-top:0}
.row .btn{width:auto;flex:none;margin-top:0;padding-left:22px;padding-right:22px}

#nick,#nickIn{width:100%;height:46px;padding:0 14px;border-radius:999px;border:1.5px solid rgba(0,200,212,.5);background:rgba(0,12,18,.7);color:var(--white);font:600 16px Kanit;user-select:text;-webkit-user-select:text}
#nick{margin-top:2px}.sheet label small{opacity:.6;font-weight:500;margin-left:6px}
#wincap{font-size:13px;opacity:.75;margin-bottom:2px}
#nickAsk{display:flex;gap:8px;align-items:center;margin:8px 0 2px}#nickAsk .btn{width:auto;flex:none;margin:0;padding:10px 20px;font-size:16px}#nickAsk input{flex:1;min-width:0}

.lvl.locked{opacity:.5;filter:grayscale(.6)}
.lvl .thumb.lock{display:grid;place-items:center;background:rgba(0,12,18,.8);font-size:20px;filter:none}
.lvl.locked span:not(.thumb){font-size:13px;opacity:.8}
.lvl.shake{animation:lvlShake .35s}
@keyframes lvlShake{20%,60%{transform:translateX(-5px)}40%,80%{transform:translateX(5px)}}

.dock{position:relative}
#ver{position:absolute;right:max(12px,env(safe-area-inset-right));bottom:calc(1px + env(safe-area-inset-bottom));font:500 10px Kanit;opacity:.5;pointer-events:none;letter-spacing:.04em}
.verline{margin-top:10px;text-align:center;font-size:11px;opacity:.45}
#whatsnew ul{margin:8px 0;padding-left:20px;text-align:left;font-size:14px;line-height:1.35}
#updating{z-index:60}#whatsnew{z-index:55}

#bonuses span.warn{border-color:#ff8a80;color:#ff8a80;box-shadow:0 0 10px rgba(255,138,128,.35);animation:chipIn .35s cubic-bezier(.3,1.6,.5,1)}
select{height:46px;padding:0 12px;border-radius:12px;border:1.5px solid rgba(0,200,212,.5);background:rgba(0,12,18,.85);color:var(--white);font:600 15px Kanit;width:100%;margin-top:4px}
#assist{max-width:calc(100% - 24px);line-height:1.2;text-align:center}

/* title screen */
#title{position:fixed;inset:0;height:100vh;height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:space-between;max-width:520px;margin:0 auto;padding:calc(24px + env(safe-area-inset-top)) 24px calc(28px + env(safe-area-inset-bottom));
  background:radial-gradient(ellipse at 50% 18%,#005a73 0,#003349 38%,var(--navy) 78%);overflow:hidden}
#title::before,#title::after{content:"";position:absolute;left:-20%;right:-20%;height:220px;pointer-events:none;filter:blur(30px);opacity:.5;animation:auroraDrift 14s ease-in-out infinite alternate}
#title::before{top:6%;background:radial-gradient(ellipse at 30% 50%,rgba(61,242,160,.45),transparent 60%)}
#title::after{top:20%;background:radial-gradient(ellipse at 70% 50%,rgba(255,95,162,.35),transparent 60%);animation-delay:-6s}
@keyframes auroraDrift{from{transform:translateX(-8%) scaleY(.9)}to{transform:translateX(8%) scaleY(1.15)}}
.tcenter{position:relative;z-index:1;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:6px}
.tlogo{width:min(62vw,260px);filter:drop-shadow(0 0 22px rgba(0,200,212,.45));animation:floatY 5s ease-in-out infinite}
@keyframes floatY{50%{transform:translateY(-6px)}}
.tname{margin:14px 0 0;font:800 italic clamp(44px,15vw,72px)/1 Kanit;letter-spacing:.02em}
.tname i{color:var(--glow);animation:glowPulse 3.2s ease-in-out infinite}
.tsub{margin:6px 0 0;color:rgba(252,252,252,.7);font-size:14px;letter-spacing:.06em}
.tbtns{position:relative;z-index:1;width:100%;max-width:340px;display:flex;flex-direction:column;align-items:stretch;gap:10px}
.btn.wide{width:100%;margin:0}.tbtns .btn.big{padding:16px 20px;font-size:24px}
.trow{display:flex;gap:10px;justify-content:center;margin-top:2px}
#verTitle{position:absolute;right:max(12px,env(safe-area-inset-right));bottom:calc(6px + env(safe-area-inset-bottom));font:500 10px Kanit;opacity:.5;letter-spacing:.04em}
#start .top{position:relative}.round.back{position:absolute;left:10px;top:calc(10px + env(safe-area-inset-top));z-index:3}
@media (max-height:640px){.tlogo{width:min(46vw,190px)}.tname{font-size:clamp(38px,12vw,56px)}}

/* the FulleRulle logo is always somewhere on screen: big on the title, medium in lists and cards, small in the HUD */
.brand{display:block;margin:0 auto 6px;width:92px;filter:drop-shadow(0 0 10px rgba(0,200,212,.35))}
.sheet .brand{width:84px}
#rotate .brand{width:150px;margin-bottom:10px}
.hudlogo{flex:none;height:19px;width:auto;margin-left:auto;opacity:.95;filter:drop-shadow(0 0 6px rgba(0,200,212,.4))}
.title{align-items:center}
@media (max-height:640px){#start .logo{display:block!important;width:64px}}
#start .logo{width:104px;filter:drop-shadow(0 0 12px rgba(0,200,212,.4))}

/* tutorial coach (Easy level 1) */
#coach{position:absolute;left:14px;right:14px;z-index:5;padding:12px 40px 12px 14px;background:rgba(0,24,36,.93);border:1.5px solid var(--glow);box-shadow:0 0 18px rgba(0,200,212,.35);animation:toastIn .3s ease-out;pointer-events:none}
#coach small{display:block;font:700 11px Kanit;letter-spacing:.08em;color:var(--glow);text-transform:uppercase}
#coach b{display:block;font:800 italic 18px Kanit;margin:2px 0}
#coach p{margin:0;font-size:14px;line-height:1.35;opacity:.92}
#coachX{position:absolute;right:6px;top:6px;width:30px;height:30px;border-radius:50%;border:0;background:rgba(255,255,255,.12);color:#fff;font-size:14px;cursor:pointer;pointer-events:auto}
#coach{pointer-events:auto}
#coachNext{display:block;margin:10px 0 0 auto;padding:8px 22px;font-size:15px}

/* modes */
.modes{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:4px}
.mode{display:flex;flex-direction:column;align-items:center;gap:1px;padding:12px 8px;border-radius:16px;border:2px solid rgba(255,255,255,.16);background:rgba(0,24,36,.55);color:#fff;font-family:Kanit;cursor:pointer;opacity:.62;transition:transform .2s,opacity .2s,box-shadow .2s,border-color .2s}
.mode i{font-style:normal;font-size:26px;line-height:1}.mode b{font:800 italic 20px Kanit;letter-spacing:.02em}.mode small{font-size:12px;opacity:.85}
.mode[data-mode=chill].on{opacity:1;border-color:var(--glow);box-shadow:0 0 22px rgba(0,200,212,.5);transform:scale(1.04);background:rgba(0,90,115,.55)}
.mode[data-mode=adrenaline].on{opacity:1;border-color:#FF5560;box-shadow:0 0 22px rgba(255,85,96,.55);transform:scale(1.04);background:rgba(120,20,34,.55)}
#modePill.adr{border-color:#FF5560;color:#FF8A92}
#tension{flex:1 0 100%;display:flex;align-items:center;gap:8px;font-size:16px}
#tension .barbg{flex:1}#tbar{height:100%;width:0;border-radius:3px;background:linear-gradient(90deg,#FFC857,#FF5560);box-shadow:0 0 8px rgba(255,85,96,.7)}
#dangerFx{position:absolute;inset:0;pointer-events:none;z-index:3;opacity:0;background:radial-gradient(ellipse at 50% 55%,transparent 52%,rgba(255,30,45,.55) 100%)}
#losebox h2{color:#FF8A92}#losecap{margin:6px 0 12px;font-size:14px;opacity:.9;max-width:300px;text-align:center}
#tension[hidden]{display:none}