:root{
  --bg:#0f0f10;
  --panel:#1c1c1e;
  --panel2:#2c2c2e;
  --text:#ffffff;
  --muted:#a0a0a0;
  --line:rgba(255,255,255,.12);
  --warn:#ffb300;
  --danger:#ff3b30;
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans JP",sans-serif;
  min-height:100vh;
}
.container{
  width:min(1100px, 92vw);
  margin:0 auto;
  padding:20px;
}
.timerSection{
  text-align:center;
  margin-top:22px;
}
.topRow{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:16px;
}
.modeSwitch{
  display:flex;
  gap:10px;
  padding:6px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.03);
}
.modeBtn{
  background:transparent;
  border:1px solid transparent;
  color:var(--muted);
  padding:10px 14px;
  border-radius:12px;
  cursor:pointer;
  font-weight:800;
}
.modeBtn.is-active{
  background:var(--panel);
  border-color:var(--line);
  color:var(--text);
}
.quickToggles{display:flex; gap:10px}
.ghost{
  background:transparent;
  border:1px solid var(--line);
  color:var(--text);
  padding:10px 14px;
  border-radius:12px;
  cursor:pointer;
  font-weight:800;
}

.presetRow{
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
  margin:10px 0 22px;
}
.preset{
  background:var(--panel);
  color:var(--text);
  border:none;
  padding:14px 22px;
  font-size:16px;
  border-radius:12px;
  cursor:pointer;
  font-weight:800;
}
.preset.outline{
  border:1px solid var(--line);
  background:transparent;
}
.preset:hover, .ghost:hover, .modeBtn:hover{opacity:.88}

.display{
  font-size: clamp(72px, 11vw, 132px);
  font-weight:800;
  letter-spacing:4px;
  margin: 8px 0 22px;
  font-variant-numeric: tabular-nums;
}
.warn{ color:var(--warn); }
.danger{ color:var(--danger); animation:blink 1s infinite; }
@keyframes blink{ 50%{opacity:0.35;} }

.controls{
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
}
button{
  padding:14px 20px;
  font-size:16px;
  border-radius:12px;
  border:1px solid transparent;
  cursor:pointer;
  background:var(--panel2);
  color:var(--text);
  font-weight:800;
}
button.primary{
  background:#fff;
  color:#000;
}
button:hover{opacity:.9}
.hidden{display:none !important}

.roundSetup{
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
  margin: 8px 0 14px;
}
.field{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:6px;
  color:var(--muted);
  font-weight:800;
  min-width: 140px;
}
.field input{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text);
  font-weight:900;
}
.roundMeta{
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom: 6px;
}
.pill{
  border:1px solid var(--line);
  padding:8px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.03);
  font-weight:900;
}
.pill.muted{color:var(--muted)}
.hint{
  margin-top:14px;
  color:var(--muted);
  font-weight:700;
  font-size:13px;
}
.adArea{
  margin:28px auto 0;
  width:min(900px, 92vw);
}

.namesBox{
  width:min(900px, 92vw);
  margin: 10px auto 12px;
  border:1px solid var(--line);
  border-radius:14px;
  background: rgba(255,255,255,.03);
  padding:12px;
}

.namesHeader{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:10px;
}

.smallBtn{
  padding:10px 12px;
  font-size:13px;
  border-radius:12px;
}

.namesGrid{
  display:grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap:10px;
}
@media (max-width: 900px){ .namesGrid{grid-template-columns: repeat(3, minmax(0, 1fr));} }
@media (max-width: 520px){ .namesGrid{grid-template-columns: repeat(2, minmax(0, 1fr));} }

.nameField{
  display:flex;
  flex-direction:column;
  gap:6px;
  text-align:left;
}
.nameField label{
  color: var(--muted);
  font-weight:900;
  font-size:12px;
}
.nameField input{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background: rgba(0,0,0,.18);
  color: var(--text);
  font-weight:900;
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15,15,16,.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar__inner{
  width:min(1100px, 92vw);
  margin: 0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 0;
  gap: 10px;
}
.brand{
  font-weight: 900;
  letter-spacing: .2px;
}
.nav{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}
.nav a{
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}
.nav a:hover{
  color: var(--text);
  border-color: var(--line);
}

.footer{
  border-top: 1px solid var(--line);
  margin-top: 28px;
  padding: 18px 0 28px;
  color: var(--muted);
}
.footer__inner{
  width:min(1100px, 92vw);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer__links{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
}
.footer__links a:hover{ color: var(--text); }

.pageSection{
  margin: 30px auto;
  max-width: 900px;
}

.pageTitle{
  font-size: 32px;
  margin-bottom: 10px;
}

.lead{
  color: var(--muted);
  margin-bottom: 24px;
}

.card{
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 20px;
}

.card h2{
  margin-top: 0;
}

.card ul{
  padding-left: 20px;
  line-height: 1.8;
}