:root {
  --bg: #f6f7fb;
  --bg-elev: #ffffff;
  --bg-elev-2: #eef0f6;
  --line: #e1e5ee;
  --text: #11151c;
  --text-dim: #5b6577;
  --accent: #ff6a3d;
  --accent-dim: #d94f23;
  --rest: #2563eb;
  --rest-dim: #1d4ed8;
  --good: #10a06b;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 8px 24px rgba(17, 21, 28, .06);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(255,106,61,.08), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(37,99,235,.08), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-feature-settings: "tnum" 1, "cv11" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

#app {
  max-width: 920px;
  margin: 0 auto;
  padding: max(16px, var(--safe-top)) max(16px, var(--safe-right)) max(16px, var(--safe-bottom)) max(16px, var(--safe-left));
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
@media (min-width: 600px) {
  #app { padding: clamp(20px, 3vw, 32px); }
}

.view { animation: fade .3s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------------- Picker ---------------- */
.picker-header h1 {
  font-size: clamp(28px, 4.5vw, 44px);
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}
.lede { color: var(--text-dim); margin: 0 0 22px; font-size: 16px; }
.lede strong { color: var(--text); }

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.field {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow);
}
.field--inline {
  flex-direction: row;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}
.field--inline input { accent-color: var(--accent); width: 18px; height: 18px; }
.field-label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .08em; }

.seg {
  display: inline-flex;
  background: var(--bg-elev-2);
  border-radius: var(--radius-sm);
  padding: 4px;
  gap: 4px;
}
.seg-btn {
  appearance: none; border: 0; background: transparent; color: var(--text-dim);
  padding: 8px 14px; border-radius: 8px; font-weight: 600; cursor: pointer;
  transition: background .15s, color .15s;
}
.seg-btn:hover { color: var(--text); }
.seg-btn.is-active { background: var(--accent); color: #fff; }

.btn--sm { padding: 8px 12px; font-size: 13px; }

.btn {
  appearance: none; border: 0;
  font: inherit; font-weight: 600;
  padding: 12px 18px; border-radius: var(--radius-sm);
  cursor: pointer; transition: transform .05s, background .15s, color .15s, border-color .15s;
}
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn--primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 6px 20px rgba(255,106,61,.35);
}
.btn--primary:hover:not(:disabled) { background: var(--accent-dim); }
.btn--ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--line);
}
.btn--ghost:hover { border-color: var(--text-dim); }
.btn--lg { padding: 16px 28px; font-size: 17px; min-width: 140px; }

/* Library + Queue layout */
.picker-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
@media (min-width: 440px) {
  .picker-body {
    grid-template-columns: 1.3fr 1fr;
    align-items: start;
    gap: 10px;
  }
  .queue-panel { position: sticky; top: 12px; }
}
@media (min-width: 800px) {
  .picker-body { grid-template-columns: 1.4fr 1fr; gap: 16px; }
  .queue-panel { top: 16px; }
}
.section-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-dim);
  margin: 0 0 10px;
  font-weight: 700;
}

/* Library list — always single column so the picker is exactly two panes */
.lib-list {
  list-style: none; padding: 0; margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
@media (min-width: 800px) { .lib-list { gap: 8px; } }
.lib-item {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 42px 10px 12px;
  cursor: pointer;
  transition: border-color .15s, transform .05s, box-shadow .25s;
  user-select: none;
  box-shadow: var(--shadow);
  min-height: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
@media (min-width: 800px) {
  .lib-item { padding: 12px 52px 12px 14px; min-height: 56px; border-radius: var(--radius-sm); }
}
.lib-item:hover { border-color: var(--text-dim); }
.lib-item:active { transform: translateY(1px); }
.lib-item .lib-name { font-weight: 600; font-size: 14px; line-height: 1.25; }
.lib-item .lib-target { display: none; color: var(--text-dim); font-size: 12px; margin-top: 2px; }
@media (min-width: 800px) {
  .lib-item .lib-name { font-size: 15px; }
  .lib-item .lib-target { display: block; }
}
.lib-item .lib-add,
.lib-item .lib-count {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  display: grid; place-items: center;
  font-weight: 700; line-height: 1;
}
.lib-item .lib-add {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--bg-elev-2); color: var(--text);
  font-size: 16px;
  transition: background .15s, color .15s;
}
@media (min-width: 800px) {
  .lib-item .lib-add { width: 30px; height: 30px; font-size: 18px; }
}
.lib-item:hover .lib-add { background: var(--accent); color: #fff; }
.lib-item .lib-count {
  background: var(--accent); color: #fff;
  border-radius: 999px;
  font-size: 12px;
  padding: 4px 10px;
  display: none;
}
.lib-item.has-count { border-color: var(--accent); }
.lib-item.has-count .lib-count { display: inline-grid; }
.lib-item.has-count .lib-add { display: none; }
.lib-item.is-flash { box-shadow: 0 0 0 4px rgba(255,106,61,.20), var(--shadow); }

/* Queue panel */
.queue-panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  box-shadow: var(--shadow);
}
@media (min-width: 800px) {
  .queue-panel { padding: 14px; border-radius: var(--radius); }
}
.queue-header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 8px;
}
.queue-count {
  color: var(--text-dim);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}
.queue-list {
  list-style: none; padding: 0; margin: 0 0 8px;
  display: flex; flex-direction: column; gap: 4px;
  max-height: 60vh;
  overflow-y: auto;
}
.queue-item {
  display: flex; align-items: center; gap: 6px;
  background: var(--bg-elev-2);
  border-radius: 6px;
  padding: 4px 4px 4px 4px;
  min-height: 32px;
}
.queue-item .q-num {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: grid; place-items: center;
  font-size: 11px; font-weight: 700;
  flex-shrink: 0;
}
.queue-item .q-name {
  flex: 1; font-weight: 600; font-size: 13px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  min-width: 0;
}
.queue-item .q-btn {
  appearance: none; background: transparent; border: 0;
  color: var(--text-dim);
  width: 22px; height: 22px; border-radius: 4px;
  cursor: pointer; font-size: 12px; line-height: 1;
  transition: background .15s, color .15s;
  display: grid; place-items: center;
  flex-shrink: 0;
  padding: 0;
}
.queue-item .q-btn:hover:not(:disabled) { background: var(--bg-elev); color: var(--text); }
.queue-item .q-btn:disabled { opacity: .25; cursor: not-allowed; }
.queue-item .q-rm:hover { color: var(--accent); }
@media (min-width: 800px) {
  .queue-list { gap: 6px; }
  .queue-item { padding: 6px 8px 6px 6px; gap: 8px; min-height: 40px; }
  .queue-item .q-num { width: 24px; height: 24px; font-size: 12px; }
  .queue-item .q-name { font-size: 14px; }
  .queue-item .q-btn { width: 28px; height: 28px; font-size: 14px; }
}
.queue-empty {
  color: var(--text-dim);
  font-size: 13px;
  margin: 4px 0 8px;
  padding: 12px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  text-align: center;
  line-height: 1.4;
}
.queue-tools {
  display: flex; gap: 4px; flex-wrap: wrap;
}
.queue-tools .btn { flex: 1; min-width: 0; }

.cta { display: flex; justify-content: center; padding: 8px 0 24px; }
.cta .btn { min-width: 220px; padding: 16px 24px; font-size: 16px; }

/* ---------------- Workout ---------------- */
.view--workout {
  flex: 1;
  display: flex; flex-direction: column;
  min-height: calc(100dvh - max(32px, calc(var(--safe-top) + var(--safe-bottom))));
}
.workout-top {
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 10px;
}
.icon-btn {
  appearance: none; background: var(--bg-elev); border: 1px solid var(--line);
  color: var(--text); width: 44px; height: 44px; border-radius: 50%;
  font-size: 22px; line-height: 1; cursor: pointer; display: grid; place-items: center;
  transition: border-color .15s, background .15s;
  box-shadow: var(--shadow);
}
.icon-btn:hover { border-color: var(--text-dim); }
.meta { display: flex; flex-direction: column; gap: 2px; }
.meta--right { margin-left: auto; align-items: flex-end; }
.phase { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .12em; }
.progress { color: var(--text); font-weight: 600; }
.total { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--text-dim); }

.ring-wrap {
  position: relative;
  display: grid; place-items: center;
  padding: 8px 0;
  margin: 0 auto;
  width: min(72vw, 380px);
  aspect-ratio: 1;
}
.ring {
  width: min(72vw, 380px);
  aspect-ratio: 1;
  transform: rotate(-90deg);
  display: block;
}
.ring-track {
  fill: none; stroke: var(--bg-elev-2); stroke-width: 10;
}
.ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 578.05; /* 2*pi*92 */
  stroke-dashoffset: 0;
  transition: stroke-dashoffset .95s linear, stroke .3s;
}
.is-rest .ring-progress { stroke: var(--rest); }

.ring-center {
  position: absolute; inset: 0; display: grid; place-items: center;
  text-align: center; pointer-events: none;
}
.big-time {
  font-size: clamp(64px, 14vw, 120px);
  font-weight: 800; line-height: 1; letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.exercise-name {
  text-align: center;
  margin: 6px auto 4px;
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 700;
  color: var(--text);
  max-width: 28ch;
  letter-spacing: -0.01em;
}
.is-rest .exercise-name { color: var(--rest); }
.is-rest .big-time { color: var(--rest); }

.cues { min-height: 24px; text-align: center; color: var(--accent); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: 13px; }

.next-up {
  text-align: center; margin: 8px 0 16px;
  display: flex; justify-content: center; gap: 8px; align-items: baseline;
}
.next-label { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .12em; }
.next-name { font-weight: 600; }

.controls-bar {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  padding: 8px 0 24px;
  margin-top: auto;
}

/* ---------------- Done ---------------- */
.view--done {
  display: grid; place-items: center; min-height: calc(100dvh - 64px);
  text-align: center;
  flex: 1;
}
.view--done h1 { font-size: clamp(48px, 8vw, 88px); margin: 0 0 8px; letter-spacing: -0.03em; }

/* ---------------- Phone ---------------- */
@media (max-width: 600px) {
  .picker-header h1 { font-size: 28px; }
  .lede { font-size: 15px; margin-bottom: 16px; }

  .controls { grid-template-columns: 1fr 1fr; gap: 10px; }
  .field { padding: 10px 12px; }
  .field--inline { grid-column: 1 / -1; padding: 12px; }
  .seg-btn { padding: 9px 10px; font-size: 14px; min-height: 38px; }

  /* Sticky Start CTA so it's always thumb-reachable */
  .cta {
    position: sticky;
    bottom: 0;
    margin: 0 calc(-1 * max(16px, var(--safe-left))) 0 calc(-1 * max(16px, var(--safe-right)));
    padding: 12px max(16px, var(--safe-right)) calc(12px + var(--safe-bottom)) max(16px, var(--safe-left));
    background: linear-gradient(to top, var(--bg) 60%, rgba(246, 247, 251, 0));
    z-index: 5;
  }
  .cta .btn { width: 100%; min-width: 0; padding: 16px; font-size: 17px; }

  /* Workout view */
  .ring-wrap, .ring { width: min(82vw, 360px); }
  .big-time { font-size: clamp(72px, 22vw, 104px); }
  .exercise-name { font-size: 22px; margin-top: 4px; }
  .next-up { margin: 6px 0 12px; font-size: 14px; }

  .controls-bar { gap: 18px; padding-bottom: calc(16px + var(--safe-bottom)); }
  .icon-btn { width: 52px; height: 52px; font-size: 24px; }
  .btn--lg { padding: 18px 28px; font-size: 18px; min-width: 160px; }

  .workout-top { padding-top: 4px; }
  .progress { font-size: 14px; }
  .total { font-size: 14px; }
}