/* Layout: one-screen phone-first stack — header / digit count / pi-table rows / phone dialer; ranking sits beside it on wide screens */
:root{
  --canvas:#f5f5f7; --surface:#ffffff; --ink:#1d1d1f; --ink-2:#6e6e73; --hairline:#d2d2d7;
  --key:#e5e5ea; --key-press:#c7c7cc;
  --blue:#0071e3; --on-blue:#ffffff; --blue-text:#0066cc; --blue-tint:rgba(0,113,227,.12);
  --bad:#d70015; --bad-tint:rgba(215,0,21,.12); --good:#248a3d;
  --scrim:rgba(0,0,0,.32); --shadow:0 -8px 32px rgba(0,0,0,.12);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Kohinoor Devanagari","Noto Sans Devanagari","Segoe UI",Roboto,"Nirmala UI",sans-serif;
  --font-num:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue","Segoe UI",Roboto,"Hiragino Sans","Noto Sans JP",sans-serif;
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s6:24px; --s8:32px; --s12:48px;
  --r-sm:8px; --r-lg:16px; --pill:999px;
  --key-size:min(76px,9.6vh,22vw);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --canvas:#000000; --surface:#1c1c1e; --ink:#f5f5f7; --ink-2:#98989d; --hairline:#38383a;
    --key:#2c2c2e; --key-press:#48484a;
    --blue:#0071e3; --on-blue:#ffffff; --blue-text:#2997ff; --blue-tint:rgba(41,151,255,.18);
    --bad:#ff453a; --bad-tint:rgba(255,69,58,.18); --good:#30d158;
    --scrim:rgba(0,0,0,.6); --shadow:0 -8px 32px rgba(0,0,0,.6);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --canvas:#000000; --surface:#1c1c1e; --ink:#f5f5f7; --ink-2:#98989d; --hairline:#38383a;
  --key:#2c2c2e; --key-press:#48484a;
  --blue:#0071e3; --on-blue:#ffffff; --blue-text:#2997ff; --blue-tint:rgba(41,151,255,.18);
  --bad:#ff453a; --bad-tint:rgba(255,69,58,.18); --good:#30d158;
  --scrim:rgba(0,0,0,.6); --shadow:0 -8px 32px rgba(0,0,0,.6);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{height:100%;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);background:var(--canvas)}
body{
  height:100%;margin:0;background:var(--canvas);color:var(--ink);
  font-family:var(--font);font-size:15px;line-height:1.5;
  -webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));
  overflow:hidden;
}
[hidden]{display:none!important}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--blue-text);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
h1,h2{margin:0}

.app{height:100%;display:flex;justify-content:center;gap:var(--s12)}
.panel{width:100%;max-width:440px;min-width:0;height:100%;display:flex;flex-direction:column}

/* header */
.top{display:flex;align-items:center;justify-content:space-between;gap:var(--s3);padding-block:var(--s3);min-height:56px}
.brand{font-size:17px;font-weight:600;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.top-r{display:flex;align-items:center;gap:var(--s3);flex-shrink:0}
.best{font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums;white-space:nowrap}
.best b{color:var(--ink);font-weight:600}
.lang{position:relative;display:inline-flex}
.lang select{appearance:none;-webkit-appearance:none;border:0;background:var(--key);border-radius:var(--pill);padding:5px 26px 5px 12px;font-size:13px;font-weight:500;color:var(--ink);max-width:120px;text-overflow:ellipsis}
.lang::after{content:"";position:absolute;right:11px;top:50%;width:6px;height:6px;margin-top:-5px;border-right:1.5px solid var(--ink-2);border-bottom:1.5px solid var(--ink-2);transform:rotate(45deg);pointer-events:none}
.seg{display:inline-flex;padding:2px;border-radius:var(--pill);background:var(--key);max-width:100%}
.seg button{border:0;background:transparent;border-radius:var(--pill);padding:5px 12px;font-size:13px;font-weight:500;color:var(--ink-2);white-space:nowrap}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--blue-text);font-weight:600}
.seg button:disabled{cursor:default}
.seg-row{display:flex;align-items:center;justify-content:space-between;gap:var(--s2);padding-bottom:var(--s2);flex-wrap:wrap}
@media (max-width:389px){ .seg button{padding:5px 9px} }

/* count */
.count{display:flex;flex-direction:column;align-items:center;padding-block:var(--s2) var(--s3)}
.count-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:min(96px,13vh);font-weight:600;letter-spacing:-.04em;line-height:1}
.count-num small{font-family:var(--font);font-size:20px;font-weight:500;letter-spacing:0;margin-left:var(--s1);color:var(--ink-2)}
.count-meta{margin-top:var(--s2);font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums;min-height:20px;text-align:center;text-wrap:balance}
.count-meta .miss{color:var(--bad)}
.count-meta .goal{color:var(--blue-text);font-weight:600}
.count-meta .over{color:var(--good);font-weight:600}

/* pi table rows */
.tape{flex:1;min-height:0;display:flex;flex-direction:column;justify-content:flex-end;gap:2px;position:relative;padding-bottom:var(--s3)}
#rows{display:flex;flex-direction:column;gap:2px}
.row{display:grid;grid-template-columns:52px 1fr;align-items:baseline;gap:var(--s3);font-family:var(--font-num);font-variant-numeric:tabular-nums}
.row .at{font-size:11px;color:var(--ink-2);text-align:right;letter-spacing:.02em}
.row .ds{font-size:22px;letter-spacing:.06em;color:var(--ink-2);white-space:nowrap;display:flex;align-items:baseline}
.row.cur .ds{color:var(--ink)}
.ds .lead{color:var(--ink-2)}
.ds .gap{display:inline-block;width:.45em}
.ds .x{color:var(--bad);text-decoration:line-through;text-decoration-thickness:2px}
.ds .ghost{color:var(--ink-2);opacity:.45}
.caret{display:inline-block;width:2px;height:1.05em;background:var(--blue);margin-left:2px;margin-right:2px;align-self:center;animation:blink 1s steps(1) infinite}
.fix{margin-left:var(--s2);font-size:13px;letter-spacing:0;padding:1px 8px;border-radius:var(--pill);background:var(--bad-tint);color:var(--bad);align-self:center;font-family:var(--font)}
@keyframes blink{50%{opacity:0}}
.toast{position:absolute;left:50%;top:0;transform:translateX(-50%);font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--pill);background:var(--ink);color:var(--canvas);white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis;transition:opacity .2s;z-index:2}
.toast[data-off]{opacity:0;pointer-events:none}

/* dialer */
.pad{display:grid;grid-template-columns:repeat(3,var(--key-size));justify-content:center;column-gap:min(28px,7vw);row-gap:min(14px,1.8vh);padding-bottom:var(--s4)}
.key{width:var(--key-size);height:var(--key-size);border-radius:50%;border:0;background:var(--key);font-family:var(--font-num);font-size:min(34px,4.4vh);font-weight:400;display:grid;place-items:center;touch-action:manipulation;user-select:none;-webkit-user-select:none;transition:background .08s;padding:0}
.key:hover{background:var(--key-press)}
.key:active,.key.is-down{background:var(--key-press)}
.key.ok{background:var(--blue-tint)}
.key.bad{background:var(--bad-tint);color:var(--bad);animation:shake .24s}
.key.sub{background:transparent;font-family:var(--font);font-size:14px;font-weight:500;color:var(--ink-2);line-height:1.2;overflow-wrap:anywhere}
.key.sub:hover{background:var(--key)}
.key:disabled{opacity:.35;cursor:default}
.key.sub:disabled{opacity:0}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}

/* ranking */
.rank-head{display:flex;align-items:baseline;justify-content:space-between;gap:var(--s3);padding-block:var(--s2) var(--s3)}
.rank-head h2{font-size:28px;font-weight:600;letter-spacing:-.02em}
.rank-meta{font-size:13px;color:var(--ink-2);display:flex;gap:var(--s3);align-items:center;white-space:nowrap}
.link-btn{border:0;background:transparent;color:var(--blue-text);font-size:13px;padding:4px 0}
.rank-tabs{display:flex;flex-wrap:wrap;gap:var(--s2);justify-content:space-between;padding-bottom:var(--s3)}
.rank-note{margin:0 0 var(--s2);font-size:13px;color:var(--ink-2)}
.rank-list{list-style:none;margin:0;padding:0 0 var(--s3);overflow-y:auto;flex:1;min-height:0;display:flex;flex-direction:column;gap:2px}
.rank-list li{display:grid;grid-template-columns:34px 22px minmax(0,1fr) auto auto;align-items:baseline;gap:var(--s2);padding:10px var(--s3);border-radius:var(--r-sm);background:var(--surface);font-variant-numeric:tabular-nums}
.rank-list li.me{background:var(--blue-tint)}
.rank-list .no{font-family:var(--font-num);font-weight:600;font-size:17px;text-align:right}
.rank-list .fl{font-size:15px;text-align:center;line-height:1}
.rank-list .nm{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-list li.me .nm{color:var(--blue-text);font-weight:600}
.rank-list .dg{font-family:var(--font-num);font-weight:600;font-size:17px;text-align:right}
.rank-list .dg small,.rank-list .tm{font-size:13px;color:var(--ink-2);font-weight:400}
.rank-list .dg small{margin-left:2px}
.rank-list .tm{min-width:52px;text-align:right}
.rank-state{padding:var(--s8) var(--s4);text-align:center;color:var(--ink-2)}
.rank-state button{margin-top:var(--s2)}
.rank-mine{margin-bottom:var(--s2);padding:10px var(--s3);border-radius:var(--r-sm);background:var(--blue-tint);color:var(--blue-text);font-size:13px;font-weight:600;font-variant-numeric:tabular-nums}
.foot{padding-bottom:var(--s3);text-align:center}

/* result sheet */
.scrim{position:fixed;inset:0;background:var(--scrim);z-index:20}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:21;background:var(--surface);border-radius:var(--r-lg) var(--r-lg) 0 0;box-shadow:var(--shadow);
  padding:var(--s6) max(var(--s6),env(safe-area-inset-right,0px)) calc(var(--s6) + env(safe-area-inset-bottom,0px)) max(var(--s6),env(safe-area-inset-left,0px));
  max-height:calc(100% - 24px);overflow-y:auto;animation:rise .2s ease-out}
.sheet:focus{outline:none}
.sheet-in{max-width:440px;margin:0 auto;display:flex;flex-direction:column;gap:var(--s4)}
@keyframes rise{from{transform:translateY(24px);opacity:0}}
.res-top{display:flex;align-items:baseline;justify-content:space-between;gap:var(--s3)}
.res-label{font-size:13px;color:var(--ink-2)}
.res-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:64px;font-weight:600;letter-spacing:-.04em;line-height:1}
.res-num small{font-family:var(--font);font-size:20px;font-weight:500;letter-spacing:0;color:var(--ink-2);margin-left:var(--s1)}
.badge{font-size:13px;font-weight:600;color:var(--good);text-align:right}
.chal{font-size:15px;font-weight:600;color:var(--blue-text)}
.chal.short{color:var(--ink-2);font-weight:500}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s2);border-block:1px solid var(--hairline);padding-block:var(--s3);margin:0}
.stats div{display:flex;flex-direction:column;min-width:0}
.stats dt{font-size:12px;color:var(--ink-2)}
.stats dd{margin:0;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:20px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.miss-box{font-variant-numeric:tabular-nums;display:flex;flex-direction:column;gap:var(--s1)}
.miss-line{font-size:15px}
.miss-line .typed{color:var(--bad);font-weight:600}
.miss-line .want{font-weight:600}
.next{font-family:var(--font-num);font-size:15px;color:var(--ink-2);letter-spacing:.06em}
.reg{display:flex;flex-direction:column;gap:var(--s2);align-items:stretch}
.reg-row{display:flex;gap:var(--s2)}
.reg input{flex:1;min-width:0;border:1px solid var(--hairline);background:var(--canvas);border-radius:var(--r-sm);padding:10px 12px;font-size:16px}
.reg-msg{font-size:13px;color:var(--ink-2);min-height:20px}
.reg-msg.err{color:var(--bad)}
.reg-msg.ok{color:var(--ink);font-weight:600}
.reg .link-btn{align-self:flex-start}
.actions{display:flex;flex-direction:column;gap:var(--s2)}
.actions-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--s2)}
.btn{display:flex;align-items:center;justify-content:center;min-height:48px;padding:0 var(--s4);border-radius:var(--pill);border:0;font-size:17px;font-weight:600;text-decoration:none;text-align:center;line-height:1.2}
.btn.primary{background:var(--blue);color:var(--on-blue)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.plain{background:var(--key);color:var(--ink);font-size:15px}
.btn.small{min-height:44px;font-size:15px;padding:0 var(--s4);white-space:nowrap}
.btn:disabled{opacity:.5;cursor:default}
.about h2{font-size:20px;font-weight:600}
.about p{margin:0;font-size:15px}
.about .muted{color:var(--ink-2);font-size:13px}
.noscript{padding:var(--s8);text-align:center}

@media (min-width:600px){
  .sheet{left:50%;right:auto;bottom:50%;transform:translate(-50%,50%);width:480px;border-radius:var(--r-lg);animation:none;max-height:calc(100% - 48px)}
}
.panel.rank{display:none}
.view-switch{display:none}
@media (min-width:960px){
  .panel.rank{display:flex}
  .panel.rank .top .brand{visibility:hidden}
}
@media (max-width:959px){
  .view-switch{display:inline-flex}
  .app[data-view="rank"] .panel.rank{display:flex}
  .app[data-view="rank"] .panel.play{display:none}
}
@media (prefers-reduced-motion:reduce){
  .caret,.key.bad,.sheet{animation:none}
  .key,.toast{transition:none}
}