:root{
  --bg:#0b0d10;
  --panel:#14181d;
  --panel-2:#1a2027;
  --text:#f5f7fa;
  --muted:#9da8b5;
  --line:#2a333d;
  --accent:#ff3b81;
  --accent-2:#50d5ff;
  --ok:#59d18b;
  --warn:#ffbe55;
  --danger:#ff6b6b;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:linear-gradient(180deg,#090b0e,#0d1116 45%,#0b0d10);
  color:var(--text);
}
.app{
  max-width:1240px;
  margin:0 auto;
  padding:24px;
}
header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:20px;
}
h1{
  margin:0;
  font-size:clamp(28px,4vw,46px);
  letter-spacing:-.04em;
}
.subtitle{
  color:var(--muted);
  margin-top:6px;
  font-size:14px;
}
.badge{
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  padding:8px 11px;
  border-radius:999px;
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
}
.layout{
  display:grid;
  grid-template-columns:350px minmax(0,1fr);
  gap:18px;
  align-items:start;
}
.layout>*{min-width:0}
.card{
  background:rgba(20,24,29,.94);
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  box-shadow:0 18px 60px rgba(0,0,0,.18);
}
.card h2{
  font-size:16px;
  margin:0 0 14px;
  letter-spacing:-.02em;
}
.section{margin-top:18px}
label{
  display:block;
  font-size:12px;
  color:var(--muted);
  margin-bottom:6px;
}
input, select, button{
  font:inherit;
}
input, select{
  width:100%;
  border:1px solid var(--line);
  background:var(--panel-2);
  color:var(--text);
  border-radius:10px;
  padding:11px 12px;
  outline:none;
}
input:focus, select:focus{
  border-color:var(--accent-2);
}
input.invalid{border-color:var(--danger)}
.grid2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.grid3{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:8px;
}
.grid3 input{padding:10px 8px}
.mini-label{display:block;font-size:11px;color:var(--muted);margin-bottom:4px}
.link-btn{
  background:none;
  border:none;
  color:var(--accent-2);
  cursor:pointer;
  padding:0;
  margin-left:6px;
  font-size:12px;
}
.link-btn:hover{text-decoration:underline}
.ref-line{
  margin:10px 0 8px;
  font-size:12px;
  color:var(--muted);
  line-height:1.5;
  font-variant-numeric:tabular-nums;
}
.ref-line b{color:var(--text)}
.c-len small{display:block;color:var(--muted);font-weight:400;font-size:11px}
.total-chip.over{border-color:rgba(255,107,107,.6)}
.total-chip.over b{color:var(--danger)}
.mode-switch{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:8px;
}
.mode-switch button, .secondary, .primary, .ghost{
  border:1px solid var(--line);
  border-radius:10px;
  padding:10px 12px;
  cursor:pointer;
}
.mode-switch button, .secondary, .ghost{
  background:var(--panel-2);
  color:var(--text);
}
.mode-switch button.active{
  border-color:var(--accent);
  box-shadow:inset 0 0 0 1px var(--accent);
}
.primary{
  width:100%;
  background:linear-gradient(135deg,var(--accent),#ff5d5d);
  color:white;
  border:none;
  font-weight:700;
}
.primary.done{background:linear-gradient(135deg,#2fae6a,#59d18b)}
.secondary.done{border-color:var(--ok);color:var(--ok)}
.secondary:hover,.ghost:hover,.mode-switch button:hover{filter:brightness(1.12)}
.ghost:disabled{opacity:.4;cursor:not-allowed;filter:none}
.ghost.danger{border-color:rgba(255,107,107,.45);color:#ffb3b3}
.ghost.armed{background:rgba(255,107,107,.18);color:#fff}
.driver-row{
  display:grid;
  grid-template-columns:1fr auto;
  gap:8px;
  margin-bottom:8px;
}
.icon-btn{
  width:40px;
  border:1px solid var(--line);
  background:var(--panel-2);
  color:var(--muted);
  border-radius:10px;
  cursor:pointer;
}
.icon-btn:hover{color:var(--text)}
.check{
  display:flex;
  align-items:center;
  gap:8px;
  margin:10px 0;
}
.check input{width:auto}
.check label{margin:0;color:var(--text)}
.small-note{
  color:var(--muted);
  font-size:12px;
  line-height:1.45;
}
.table-wrap{
  overflow:auto;
  border:1px solid var(--line);
  border-radius:14px;
  max-height:70vh;
}
table{
  width:100%;
  border-collapse:collapse;
  min-width:760px;
}
th,td{
  padding:9px 9px;
  border-bottom:1px solid var(--line);
  text-align:left;
  font-size:13px;
  vertical-align:middle;
}
th{
  position:sticky;
  top:0;
  z-index:1;
  background:#11151a;
  color:var(--muted);
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.06em;
  white-space:nowrap;
}
tbody tr:hover{background:rgba(255,255,255,.025)}
tbody tr.row-done td{opacity:.55}
tbody tr.row-current{background:rgba(80,213,255,.09)}
tbody tr.row-current td:first-child{box-shadow:inset 3px 0 0 var(--accent-2)}
tbody tr.row-current .stint-num{background:rgba(80,213,255,.18);color:var(--accent-2)}
table.no-window .c-window,table.no-window .h-window{display:none}
.stint-num{
  display:inline-flex;
  min-width:28px;
  height:28px;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  background:rgba(255,59,129,.12);
  color:#ff8fb6;
  font-weight:700;
}
.window{
  white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
sup.day{font-size:9px;color:var(--accent-2);margin-left:2px;font-weight:600}
tr.row-actual .c-pit{color:var(--muted);text-decoration:line-through}
.delta{font-size:11px;margin-left:6px;color:var(--muted);white-space:nowrap}
.delta.late{color:var(--warn)}
.delta.early{color:var(--ok)}
.c-len.short{color:var(--warn)}
.c-len.over{color:var(--danger);font-weight:700}
.c-len.used{color:#ffd48e}
.c-actual{white-space:nowrap}
.act{display:inline-flex;align-items:center;gap:3px}
.act select{
  width:auto;
  min-width:56px;
  padding:7px 4px;
  border-radius:8px;
  text-align:center;
}
.act .colon{color:var(--muted)}
.act .icon-btn{width:30px;height:33px;border-radius:8px;margin-left:2px}
.tire-pill{
  border:1px solid var(--line);
  background:var(--panel-2);
  color:var(--muted);
  border-radius:999px;
  padding:5px 10px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.04em;
  cursor:pointer;
  white-space:nowrap;
  min-width:58px;
}
.tire-pill.new{border-color:rgba(89,209,139,.45);color:var(--ok)}
.tire-pill.used{border-color:rgba(255,190,85,.55);color:var(--warn);background:rgba(255,190,85,.08)}
.tire-pill.triple{border-color:rgba(255,107,107,.6);color:var(--danger);background:rgba(255,107,107,.1)}
.tire-pill.half{border-color:rgba(80,213,255,.5);color:var(--accent-2);background:rgba(80,213,255,.06)}
.tire-pill:disabled{cursor:default;opacity:.8}
.tire-left{display:block;font-size:10px;color:var(--muted);margin-top:3px;white-space:nowrap}
.tire-left.over{color:var(--danger)}
.driver-select{
  min-width:120px;
  padding:8px 9px;
}
.summary{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:10px;
  margin-bottom:10px;
}
.stat{
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px;
  min-width:0;
}
.stat strong{
  display:block;
  font-size:20px;
  margin-top:3px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  font-variant-numeric:tabular-nums;
}
.stat strong.text{font-size:15px}
.stat strong small{font-size:12px;color:var(--muted);font-weight:500}
.stat.live-on{border-color:rgba(80,213,255,.45)}
.stat.soon{border-color:rgba(255,190,85,.6)}
.stat.soon strong{color:var(--warn)}
.stat span{
  color:var(--muted);
  font-size:11px;
}
.tire-line{
  font-size:12px;
  color:var(--muted);
  margin-bottom:14px;
  line-height:1.5;
}
.tire-line b{color:var(--text)}
.warning{
  display:none;
  margin-bottom:14px;
  border:1px solid rgba(255,190,85,.4);
  background:rgba(255,190,85,.08);
  color:#ffd48e;
  padding:10px 12px;
  border-radius:10px;
  font-size:12px;
  line-height:1.45;
}
.warning ul{margin:0;padding-left:16px}
.toolbar{
  display:flex;
  gap:8px;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  margin-bottom:12px;
}
.toolbar .group{display:flex;gap:8px;flex-wrap:wrap}
.hidden{display:none!important}
.totals{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}
.total-chip{
  border:1px solid var(--line);
  background:var(--panel-2);
  border-radius:10px;
  padding:8px 11px;
  font-size:12px;
  color:var(--muted);
}
.total-chip b{display:block;color:var(--text);font-size:13px;margin-bottom:2px}
.history-list{
  display:grid;
  gap:8px;
  margin-top:10px;
}
.history-item{
  display:grid;
  grid-template-columns:1fr auto;
  gap:8px;
  align-items:center;
  border:1px solid var(--line);
  background:var(--panel-2);
  border-radius:10px;
  padding:10px;
  font-size:12px;
  cursor:pointer;
}
.history-item:hover{border-color:var(--accent-2)}
.history-item b{display:block;margin-bottom:3px}
.history-item .icon-btn{width:30px;height:30px}
.placeholder td{color:var(--muted);text-align:center;padding:36px}
@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .layout main{order:-1}   /* schedule first on phones: that's what you need mid-race */
  .summary{grid-template-columns:1fr 1fr}
  .table-wrap{max-height:none}
}
@media (max-width:520px){
  .app{padding:14px}
  .grid2{grid-template-columns:1fr}
  .summary{grid-template-columns:1fr 1fr}
  header{align-items:flex-start;flex-direction:column}
  .badge{white-space:normal}
}