/* Colors live in variables so they're easy to tweak in one place */
:root {
  --bg: #0b0b0c;
  --panel: #1a1a1d;
  --text: #ffffff;
  --muted: #a1a1aa;
  --accent: #22c55e;      /* green: go / save */
  --accent-text: #052e12;
  --rest: #facc15;        /* yellow: resting */
  --done: #38bdf8;        /* blue: target reached */
  --danger: #ef4444;
  --radius: 18px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  /* Stops the grey flash iOS shows when you tap something */
  -webkit-tap-highlight-color: transparent;
}

/* Padding respects the notch and home bar (the env(...) values come from iOS) */
.screen {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 100dvh;
  padding: calc(env(safe-area-inset-top) + 16px) 16px calc(env(safe-area-inset-bottom) + 24px);
  max-width: 560px;
  margin: 0 auto;
}
.screen[hidden] { display: none; }

#screen-home { justify-content: center; }
.title { font-size: 44px; text-align: center; margin: 0 0 24px; }
h2 { font-size: 28px; margin: 4px 0; }

button {
  font: inherit;
  color: inherit;
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
  touch-action: manipulation; /* no double-tap zoom delay */
}
button:active { transform: scale(0.98); opacity: 0.85; }

.big { min-height: 64px; font-size: 22px; font-weight: 700; padding: 0 20px; }
.huge { min-height: 110px; font-size: 30px; font-weight: 800; }
.primary { background: var(--accent); color: var(--accent-text); }
.secondary { background: var(--panel); }
.ghost { background: transparent; color: var(--muted); border: 2px solid var(--panel); }
.danger { background: transparent; color: var(--danger); border: 2px solid var(--danger); margin-top: auto; }

/* The big button turns yellow while you're resting */
.huge.resting { background: var(--rest); color: #2a2100; }

.lift-switch {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--panel); min-height: 64px; padding: 0 18px;
  font-size: 24px; font-weight: 800; text-align: left;
}
.lift-switch .chev { font-size: 16px; color: var(--muted); font-weight: 600; white-space: nowrap; }

.last-time { color: var(--muted); font-size: 17px; line-height: 1.35; padding: 0 4px; margin-top: -4px; }
.last-time strong { color: var(--text); font-variant-numeric: tabular-nums; }

.timer-box { background: var(--panel); border-radius: var(--radius); padding: 10px 12px 14px; text-align: center; }
/* Stays outlined in blue for as long as you're past your target */
.timer-box.done { outline: 4px solid var(--done); }

/* Whole screen pulses blue 4 times when you hit your target */
body.flash { animation: flash 0.6s ease-in-out 4; }
@keyframes flash { 50% { background: var(--done); } }
.timer {
  font-size: 96px; font-weight: 800; line-height: 1.05;
  font-variant-numeric: tabular-nums; /* digits don't jiggle as they change */
  color: var(--muted);
}
.timer.resting { color: var(--rest); }
.timer.done { color: var(--done); }
.target-row { display: flex; justify-content: space-between; align-items: center; font-size: 20px; color: var(--muted); }
.target-row strong { color: var(--text); }
.pill { background: #2a2a2f; min-height: 48px; min-width: 76px; font-size: 18px; font-weight: 700; }

.inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.field label { display: block; font-size: 15px; color: var(--muted); margin: 0 0 4px 4px; }
.stepper { display: flex; background: var(--panel); border-radius: var(--radius); overflow: hidden; }
.step { background: transparent; width: 48px; font-size: 30px; font-weight: 700; border-radius: 0; flex: none; }
.stepper input {
  width: 100%; min-width: 0; min-height: 64px;
  background: transparent; border: 0; color: var(--text);
  font-size: 30px; font-weight: 800; text-align: center;
  font-variant-numeric: tabular-nums;
}
.stepper input:focus { outline: none; background: #24242a; }

.set-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.set-list li, .lift-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--panel); border-radius: 14px; padding: 12px 14px; font-size: 19px;
}
.set-list .meta { color: var(--muted); font-size: 16px; }
.del { background: transparent; color: var(--muted); font-size: 22px; min-width: 44px; min-height: 44px; }

.lift-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.lift-list li { padding: 0; }
.lift-list .pick { flex: 1; text-align: left; background: transparent; min-height: 64px; padding: 0 16px; font-size: 21px; font-weight: 700; }
.lift-list .rest { background: #2a2a2f; min-height: 48px; margin-right: 8px; padding: 0 12px; font-size: 16px; color: var(--muted); }
.lift-list li.current { outline: 3px solid var(--accent); }
.lift-list li.group-head {
  background: transparent; padding: 14px 4px 0;
  color: var(--muted); font-size: 15px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
}
.lift-list .remove { background: transparent; color: var(--danger); border: 2px solid var(--danger); min-height: 48px; margin-right: 8px; padding: 0 14px; font-size: 16px; font-weight: 700; }
.lift-list .rest-hint { color: var(--muted); font-size: 16px; padding-right: 16px; white-space: nowrap; }
.lift-list .note { background: transparent; color: var(--muted); padding: 8px 4px; }

.header-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.header-row h2 { flex: 1; text-align: center; font-size: 24px; }
.header-row .spacer { min-width: 76px; }

.search {
  width: 100%; min-height: 60px; padding: 0 18px;
  background: var(--panel); color: var(--text); border: 2px solid #2a2a2f; border-radius: var(--radius);
  font: inherit; font-size: 20px; /* 16px+ stops iOS zooming in when you tap it */
}
.search:focus { outline: none; border-color: var(--accent); }
.custom-box { background: var(--panel); border-radius: var(--radius); padding: 4px 14px 14px; font-size: 18px; }
.group-btns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.group-btns .pill { min-height: 56px; background: var(--accent); color: var(--accent-text); }

.workout-card { background: var(--panel); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 12px; }
.workout-card h3 { margin: 0 0 6px; font-size: 20px; }
.workout-card .card-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.workout-card .remove { background: transparent; color: var(--danger); border: 2px solid var(--danger); min-height: 48px; padding: 0 14px; font-size: 16px; font-weight: 700; flex: none; }
.workout-card h4 { margin: 12px 0 4px; font-size: 18px; color: var(--accent); }
.workout-card table { width: 100%; border-collapse: collapse; font-size: 16px; font-variant-numeric: tabular-nums; }
.workout-card td { padding: 3px 0; }
.workout-card td:last-child { text-align: right; color: var(--muted); }
.empty { color: var(--muted); text-align: center; font-size: 18px; }