*{box-sizing:border-box}
html{background:#bbd2e1}
html,body{margin:0;height:100%;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-tap-highlight-color:transparent}
body{background:transparent}
#field{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;pointer-events:none}
#title{position:fixed;top:max(10px,env(safe-area-inset-top));left:max(14px,env(safe-area-inset-left));margin:0;z-index:5;line-height:0}
#title img{height:clamp(44px,7vw,64px);width:auto;border-radius:12px;display:block;box-shadow:0 2px 8px rgba(0,0,0,.35)}
.btn{background:#fefee0;color:#12242f;border:3px solid #1c3a4d;border-radius:18px;font-weight:900;letter-spacing:.06em;cursor:pointer;transition:transform .12s,box-shadow .12s;box-shadow:0 5px 0 #1c3a4d;font-family:inherit}
.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(3px);box-shadow:0 1px 0 #1c3a4d}
.btn:focus-visible,input:focus-visible,select:focus-visible{outline:4px solid #fff;outline-offset:2px}
.btn.small{position:fixed;top:max(10px,env(safe-area-inset-top));right:max(12px,env(safe-area-inset-right));z-index:6;padding:12px 16px;font-size:clamp(13px,2.6vw,18px);min-height:48px}
.btn.big{font-size:clamp(26px,6vw,48px);padding:26px 20px;width:100%;min-height:90px}
.btn.huge{flex:1;width:100%;font-size:clamp(90px,28vmin,260px);border-radius:32px}
main{height:100%;padding:76px 16px 16px;padding-bottom:max(16px,env(safe-area-inset-bottom))}
.screen{display:none;height:100%;width:100%;max-width:1100px;margin:0 auto}
.screen.active{display:flex;flex-direction:column}
#home.active,#mode.active,#config.active{justify-content:center;align-items:center}
.stack{display:flex;flex-direction:column;gap:22px;width:min(560px,100%)}
.label{color:#12242f;font-weight:800;font-size:clamp(16px,3.4vw,24px);text-align:center;margin:0;text-shadow:0 1px 3px rgba(255,255,255,.8)}
#ready .label{padding:16px 0 4px;font-size:clamp(18px,4vw,28px)}
#ready{gap:0}
input,select{font:inherit;font-size:20px;padding:14px;border-radius:12px;border:3px solid #1c3a4d;background:#fefee0;color:#12242f}
#secs{text-align:center;font-size:38px;font-weight:800}
.err{min-height:1.4em;margin:0;color:#fff;background:rgba(150,0,0,.8);border-radius:8px;text-align:center;font-weight:700;padding:0 8px}
.err:empty{background:none}
.tools{display:flex;gap:10px;margin-bottom:12px;flex-wrap:wrap}.tools input{flex:1;min-width:180px}
#grid{overflow:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;align-content:start;padding-bottom:20px}
.cat-h{grid-column:1/-1;color:#12242f;font-weight:900;font-size:20px;margin:10px 0 0;text-shadow:0 1px 3px rgba(255,255,255,.8)}
.card{background:rgba(18,36,47,.88);border:2px solid #fefee0;border-radius:14px;padding:8px;color:#fefee0}
.card b{display:block;text-align:center;font-size:15px;margin-bottom:4px}
.card svg,#rsvg svg{width:100%;height:auto;display:block;background:rgba(18,36,47,.7);border-radius:10px}
#train.active{align-items:center;gap:6px}
#rname{margin:0;color:#12242f;text-align:center;font-size:clamp(30px,7vw,70px);font-weight:900;text-shadow:0 2px 6px rgba(255,255,255,.85);line-height:1.05}
#rsvg{flex:1;min-height:0;width:100%;display:flex;justify-content:center}
#rsvg svg{height:100%;width:auto;max-width:100%;background:rgba(18,36,47,.8)}
#count{color:#12242f;font-weight:900;font-size:clamp(56px,14vmin,130px);line-height:1;text-shadow:0 2px 6px rgba(255,255,255,.85)}
@media (max-width:520px){#title{position:fixed;top:max(10px,env(safe-area-inset-top));left:max(14px,env(safe-area-inset-left));margin:0;z-index:5;line-height:0}
#title img{height:clamp(44px,7vw,64px);width:auto;border-radius:12px;display:block;box-shadow:0 2px 8px rgba(0,0,0,.35)}.btn.small{padding:8px 10px;font-size:12px}main{padding-top:64px}}
@media (max-height:480px) and (orientation:landscape){#train.active{flex-direction:row;flex-wrap:wrap;justify-content:center}#rname{width:100%;font-size:28px}#rsvg{flex:1}#count{font-size:64px}.stack{gap:10px}.btn.big{min-height:60px;padding:12px}}