:root {
  --bg: #0f1115;
  --card: #161a22;
  --muted: #9aa4b2;
  --text: #e7ecf3;
  --accent: #4f46e5;
  --chip: #23293b;
  --border: #262c3a;
}

:root.light {
  --bg: #f6f7fb;
  --card: #ffffff;
  --muted: #5b6472;
  --text: #0f1220;
  --accent: #3b82f6;
  --chip: #eef2ff;
  --border: #dfe4ef;
}

* {
  box-sizing: border-box
}

html,
body {
  height: 100%
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Inter, Roboto, Ubuntu, Helvetica, Arial;
  background: var(--bg);
  color: var(--text);
}

.appbar {
  position: sticky;
  top: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(0, 0, 0, .14), rgba(0, 0, 0, 0));
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px)
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px
}

h1 {
  margin: 0;
  font-size: 1.3rem
}

h3 {
  margin: 0 0 8px 0
}

.small {
  font-size: .9rem
}

.muted {
  color: var(--muted)
}

.row {
  display: flex;
  align-items: center;
  gap: 8px
}

.spacer {
  flex: 1
}

.sep {
  height: 1px;
  background: var(--border);
  margin: 14px 0
}

.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border)
}

.btn.small {
  padding: 6px 10px;
  border-radius: 10px;
  font-size: .9rem
}

.btn.danger {
  border-color: #ef4444;
  color: #ef4444
}

.tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0
}

.tab {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--chip);
  color: #cbd5e1;
  cursor: pointer;
  user-select: none;
  border: 1px solid var(--border)
}

.tab.active {
  background: var(--accent);
  color: #fff;
  border-color: transparent
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px
}

@media(min-width:800px) {
  .grid {
    grid-template-columns: 1fr 1fr
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px
}

.card h3 {
  font-size: 1rem
}

.exercise {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap
}

.chip {
  background: var(--chip);
  color: #c3c9d4;
  padding: 4px 8px;
  border-radius: 10px;
  font-size: .8rem;
  border: 1px solid var(--border)
}

.field {
  display: flex;
  align-items: center;
  gap: 6px
}

input[type="number"],
input[type="text"] {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 10px;
  width: 90px
}

input[type="text"].wide {
  width: 220px
}

label {
  font-size: .85rem;
  color: var(--muted)
}

.set-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
  flex-wrap: wrap
}

.sets {
  margin-top: 6px
}

.kicker {
  font-size: .82rem;
  color: var(--muted)
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--chip);
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border)
}

.hint {
  font-size: .85rem;
  color: var(--muted);
  margin-top: 6px
}

dialog {
  border: none;
  border-radius: 16px;
  padding: 0;
  width: min(950px, 92vw);
  background: var(--card);
  color: var(--text);
}

dialog .dialog-head {
  padding: 14px;
  border-bottom: 1px solid var(--border)
}

dialog #historyGrid {
  padding: 14px
}

.pr-card h4 {
  margin: 0 0 6px 0
}

.pr-badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--chip)
}

kbd {
  background: var(--chip);
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid var(--border)
}

@media (max-width: 768px) {
  .row {
    display: block;
    align-items: center;
    gap: 8px;
  }

  .btn.danger {
    margin-top: 2%;
  }

  .card {
    margin-bottom: 2%;
  }
}