/* Lift & Run - dark, one-handed, gym-proof.
   Rules this stylesheet keeps to:
   - the number you have to read mid-set is always the loudest thing on screen
   - nothing you tap is smaller than 56px
   - colour means something (done, missed, deload) and is never decoration */

:root {
  --bg: #0b0e13;
  --surface: #141922;
  --surface-2: #1c222c;
  --surface-3: #232a36;
  --line: #262e3a;
  --line-soft: #1e2530;
  --text: #eef2f7;
  --text-dim: #aeb9c6;
  --muted: #8794a3;
  --accent: #4ea1ff;
  --accent-soft: rgba(78, 161, 255, 0.16);
  --accent-ink: #04121f;
  --good: #45d483;
  --warn: #ffb020;
  --bad: #ff5f5f;
  --tap: 56px;
  --pad: 16px;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.22);
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  color-scheme: dark;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: contain;
}

body {
  padding-top: calc(54px + env(safe-area-inset-top, 0px));
  padding-bottom: calc(66px + env(safe-area-inset-bottom, 0px));
  background-image: radial-gradient(120% 60% at 50% 0%, #10161f 0%, var(--bg) 60%);
  background-attachment: fixed;
}

/* --- chrome ------------------------------------------------------------- */

.appbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  height: calc(54px + env(safe-area-inset-top, 0px));
  padding: env(safe-area-inset-top, 0px) var(--pad) 0;
  background: rgba(11, 14, 19, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.appbar h1 {
  font-size: 18px;
  margin: 0;
  font-weight: 640;
  letter-spacing: -0.015em;
}
.appbar-right { display: flex; align-items: center; gap: 10px; }
.clock {
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
  font-size: 15px;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line-soft);
}
.clock.over { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, var(--line)); }

.tabbar {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(11, 14, 19, 0.9);
  backdrop-filter: saturate(140%) blur(12px);
  border-top: 1px solid var(--line-soft);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.tabbar a {
  position: relative;
  padding: 12px 4px;
  text-align: center;
  color: var(--muted);
  text-decoration: none;
  font-size: 12.5px;
  letter-spacing: 0.01em;
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s var(--ease);
}
.tabbar a[aria-current="page"] { color: var(--text); font-weight: 600; }
.tabbar a[aria-current="page"]::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 2px;
  border-radius: 0 0 2px 2px;
  background: var(--accent);
}

.screen {
  padding: var(--pad);
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 620px;
  margin: 0 auto;
}
.screen-body { display: flex; flex-direction: column; gap: 12px; }

/* --- building blocks ---------------------------------------------------- */

.card {
  position: relative;
  background: linear-gradient(180deg, var(--surface-2) 0%, var(--surface) 34%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--pad);
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow);
}
.card.optional { opacity: 0.66; }
.card.done { border-color: color-mix(in srgb, var(--good) 34%, var(--line)); }
.card.done::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  border-radius: var(--radius) 0 0 var(--radius);
  background: var(--good);
}

.row { display: flex; align-items: center; gap: 10px; }
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }

h2 { font-size: 17px; margin: 0; font-weight: 640; letter-spacing: -0.01em; }
h3 {
  font-size: 11.5px;
  margin: 0;
  font-weight: 650;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
p { margin: 0; }
.muted { color: var(--muted); font-size: 14px; }
.dim { color: var(--text-dim); }

/* Small uppercase label above a heading: "MAIN", "SECONDARY", "MON". */
.eyebrow {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* The number you read between sets. */
.big {
  font-size: 34px;
  line-height: 1.05;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.025em;
}
.big .unit { font-size: 17px; font-weight: 600; color: var(--text-dim); letter-spacing: 0; }
.mono { font-variant-numeric: tabular-nums; }

/* The rule under a screen title, as in "LOWER A ---- Mon - 40 min". */
.titlebar { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.titlebar + .rule { margin-top: -4px; }
.rule { height: 1px; background: linear-gradient(90deg, var(--line) 0%, transparent 100%); border: 0; }

.badge {
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--surface-3);
  color: var(--text-dim);
  white-space: nowrap;
  border: 1px solid transparent;
}
.badge.accent { background: var(--accent-soft); color: var(--accent); }
.badge.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.badge.good { background: color-mix(in srgb, var(--good) 16%, transparent); color: var(--good); }
.badge.bad { background: color-mix(in srgb, var(--bad) 18%, transparent); color: var(--bad); }

button, .btn {
  font: inherit;
  font-weight: 560;
  color: var(--text);
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 13px;
  min-height: var(--tap);
  padding: 0 18px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  touch-action: manipulation;
  user-select: none;
  transition: transform 0.12s var(--ease), background 0.15s var(--ease), border-color 0.15s var(--ease);
}
button:active, .btn:active { transform: scale(0.98); }
button.primary {
  background: linear-gradient(180deg, #62adff 0%, var(--accent) 100%);
  color: var(--accent-ink);
  border-color: transparent;
  font-weight: 680;
  box-shadow: 0 2px 10px rgba(78, 161, 255, 0.28);
}
button.ghost { background: transparent; }
button.small { min-height: 42px; padding: 0 13px; font-size: 14px; border-radius: 11px; }
button.danger { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 32%, var(--line)); background: transparent; }
button:disabled { opacity: 0.4; }
button.wide, .btn.wide { width: 100%; }

input[type="number"], input[type="text"], input[type="date"], input[type="password"], select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 13px;
  min-height: var(--tap);
  padding: 10px 13px;
  width: 100%;
}
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
textarea { min-height: 84px; }
label { font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 7px; }
label.inline { flex-direction: row; align-items: center; justify-content: space-between; }
input[type="checkbox"] { width: 28px; height: 28px; accent-color: var(--accent); }
ol.muted, ul.muted { padding-left: 20px; margin: 0; display: flex; flex-direction: column; gap: 6px; }

/* --- set rows ----------------------------------------------------------- */

.sets { display: flex; flex-direction: column; gap: 9px; }
.setrow {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  align-items: center;
  gap: 12px;
  padding-left: 2px;
}
.setrow .idx {
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  text-align: center;
  padding-right: 10px;
  border-right: 1px solid var(--line);
}
.setrow .load { font-size: 15px; color: var(--text-dim); }
.setrow.ramp .idx { color: var(--accent); border-right-color: var(--accent-soft); }
.setrow.ramp .load { color: var(--muted); font-size: 14px; }

.tapset {
  min-width: 100px;
  min-height: var(--tap);
  font-size: 19px;
  font-weight: 680;
  font-variant-numeric: tabular-nums;
}
.tapset .tick { font-size: 13px; opacity: 0.85; }
.tapset.logged {
  background: color-mix(in srgb, var(--good) 17%, var(--surface-3));
  border-color: color-mix(in srgb, var(--good) 42%, var(--line));
  color: #d6ffe8;
}
.tapset.short {
  background: color-mix(in srgb, var(--warn) 17%, var(--surface-3));
  border-color: color-mix(in srgb, var(--warn) 42%, var(--line));
  color: #ffe5b8;
}
.tapset.just-logged { animation: land 0.32s var(--ease); }

@keyframes land {
  0% { transform: scale(1); }
  38% { transform: scale(1.09); }
  100% { transform: scale(1); }
}

/* "2 of 5 done" under an exercise. */
.progress { display: flex; align-items: center; gap: 10px; }
.progress .track {
  flex: 1;
  height: 4px;
  border-radius: 999px;
  background: var(--surface-3);
  overflow: hidden;
}
.progress .fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
  transition: width 0.35s var(--ease);
}
.progress.complete .fill { background: var(--good); }
.progress .count { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }

.editor { display: grid; grid-template-columns: 1fr 1fr auto; gap: 10px; align-items: end; }

/* "How to do it": a quiet line that opens into a description. */
.howto { border-top: 1px solid var(--line-soft); padding-top: 4px; }
.howto summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 44px;
  font-size: 13.5px;
  color: var(--accent);
  user-select: none;
}
.howto summary::-webkit-details-marker { display: none; }
.howto summary::after { content: "+"; font-size: 17px; color: var(--muted); line-height: 1; }
.howto[open] summary::after { content: "–"; }
.howto p { font-size: 14.5px; color: var(--text-dim); padding-bottom: 6px; }

/* --- rest timer --------------------------------------------------------- */

.timer-bar {
  position: fixed;
  left: 0; right: 0;
  bottom: calc(66px + env(safe-area-inset-bottom, 0px));
  z-index: 19;
  background: rgba(28, 34, 44, 0.96);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  padding: 11px var(--pad);
  display: flex;
  align-items: center;
  gap: 12px;
}
.timer-bar .count { font-size: 25px; font-weight: 700; font-variant-numeric: tabular-nums; min-width: 74px; letter-spacing: -0.02em; }
.timer-bar .label { color: var(--muted); font-size: 13.5px; flex: 1; min-width: 0; }
.timer-bar.done { background: color-mix(in srgb, var(--good) 12%, rgba(28, 34, 44, 0.96)); }
.timer-bar.done .count { color: var(--good); }
.timer-progress {
  position: absolute;
  left: 0; top: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s linear;
}

/* --- calibration wizard ------------------------------------------------- */

.rpe-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.rpe-grid button { min-height: 68px; font-size: 17px; font-weight: 620; flex-direction: column; gap: 3px; }
.rpe-grid button span { font-size: 11.5px; font-weight: 400; color: var(--muted); }
.rpe-grid button.span2 { grid-column: 1 / -1; }
.wizard-weight { text-align: center; padding: 20px 0 14px; }
.wizard-weight .big { font-size: 52px; }

/* --- week grid ---------------------------------------------------------- */

.week-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tile {
  display: flex;
  flex-direction: column;
  gap: 5px;
  align-items: flex-start;
  text-align: left;
  padding: 13px;
  min-height: 96px;
  gap: 6px;
}
.tile.today { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.tile.today::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  border-radius: var(--radius) 0 0 var(--radius);
  background: var(--accent);
}
.tile .day { font-size: 11px; color: var(--muted); letter-spacing: 0.12em; text-transform: uppercase; font-weight: 650; }
.tile .name { font-size: 15px; font-weight: 620; }
.tile button { margin-top: auto; }

/* --- charts ------------------------------------------------------------- */

.chart { width: 100%; height: auto; display: block; touch-action: pan-y; }
.chart .grid { stroke: var(--line-soft); stroke-width: 1; }
.chart .axis { stroke: var(--line); stroke-width: 1; }
.chart .series { fill: none; stroke: var(--accent); stroke-width: 2.25; stroke-linecap: round; stroke-linejoin: round; }
.chart .series.alt { stroke: var(--text-dim); stroke-width: 1.5; stroke-dasharray: 3 3; }
.chart .dot { fill: var(--accent); }
.chart .dot.missed { fill: var(--warn); }
.chart .dot.deload { fill: var(--bad); }
.chart .dot.planned { fill: var(--bg); stroke: var(--accent); stroke-width: 2; }
.chart .label { fill: var(--muted); font-size: 9.5px; font-variant-numeric: tabular-nums; }
.chart .value { fill: var(--text); font-size: 11px; font-weight: 650; font-variant-numeric: tabular-nums; }

.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.legend i.line { height: 2px; border-radius: 2px; background: var(--accent); }
.legend i.line.alt { background: var(--text-dim); height: 0; border-top: 2px dashed var(--text-dim); }
.legend i.missed { background: var(--warn); border-radius: 999px; }
.legend i.deload { background: var(--bad); border-radius: 999px; }
.legend i.planned { background: var(--bg); border: 2px solid var(--accent); border-radius: 999px; }

.empty { display: flex; flex-direction: column; gap: 8px; align-items: center; text-align: center; padding: 18px 8px; }
.empty .mark { font-size: 26px; opacity: 0.5; }

/* --- lists -------------------------------------------------------------- */

.list { display: flex; flex-direction: column; gap: 8px; }
.list a, .list .item {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: 12px 13px; min-height: 52px;
  background: var(--surface); border: 1px solid var(--line-soft); border-radius: 13px;
  color: var(--text); text-decoration: none;
}

.summary-line {
  display: flex; justify-content: space-between; gap: 10px;
  padding: 9px 0; border-bottom: 1px solid var(--line-soft);
  font-size: 15px;
}
.summary-line:last-child { border-bottom: 0; }
.summary-line span:first-child { color: var(--text-dim); }

.toast {
  position: fixed;
  left: 50%; transform: translateX(-50%);
  bottom: calc(136px + env(safe-area-inset-bottom, 0px));
  z-index: 30;
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 11px 19px;
  font-size: 14px;
  box-shadow: var(--shadow);
  animation: rise 0.22s var(--ease);
  display: flex; align-items: center; gap: 14px;
  width: max-content; max-width: calc(100vw - 32px);
}
.toast-action {
  background: none; border: 0; padding: 4px 2px; min-height: 0;
  color: var(--accent); font: inherit; font-weight: 600; white-space: nowrap;
}
@keyframes rise {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

code { font-size: 13px; word-break: break-all; color: var(--text-dim); }
hr { border: 0; border-top: 1px solid var(--line-soft); margin: 2px 0; width: 100%; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* --- back check-in -------------------------------------------------------- */
.checkin { display: flex; flex-direction: column; gap: 8px; margin: 8px 0; }
.back-dots { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 8px; }
.back-dots .dot {
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  font-size: 10px; font-weight: 650; color: var(--bg);
}
.back-dots .dot.fine { background: var(--good); }
.back-dots .dot.bit { background: var(--warn); }
.back-dots .dot.sore { background: var(--bad); }

/* --- update prompt -------------------------------------------------------- */
.update-bar {
  position: fixed;
  left: var(--pad); right: var(--pad);
  top: calc(64px + env(safe-area-inset-top, 0px));
  z-index: 40;
  min-height: var(--tap);
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: var(--radius);
  font-weight: 650;
  box-shadow: var(--shadow);
}