/* Lift Studio — mobile-first, dark, dependency-free */
:root {
  --bg: #0e1116;
  --bg-2: #151a22;
  --card: #1a2029;
  --card-2: #212936;
  --line: #2a3342;
  --line-strong: #3d4859; /* >= 3:1 non-text contrast for pending set slots */
  --text: #e8ecf2;
  --text-dim: #97a3b4;
  --text-faint: #8390a3;  /* >= 4.5:1 on --card / --card-2 */
  --accent: #f2a33c;      /* amber — plates & progress */
  --accent-soft: rgba(242,163,60,.14);
  --green: #4cc38a;
  --green-soft: rgba(76,195,138,.14);
  --blue: #5ea2ef;
  --blue-soft: rgba(94,162,239,.14);
  --red: #e5645f;
  --red-soft: rgba(229,100,95,.14);
  --radius: 14px;
  --tabbar-h: 64px;
  color-scheme: dark;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  user-select: none;
  -webkit-user-select: none;
}
input, textarea { user-select: text; -webkit-user-select: text; }

/* ---------- chrome ---------- */
.topbar {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: calc(14px + env(safe-area-inset-top)) 18px 10px;
  position: sticky; top: 0; z-index: 20;
  background: linear-gradient(var(--bg) 75%, transparent);
}
.brand { font-size: 1.25rem; font-weight: 800; letter-spacing: -.02em; }
.brand span { color: var(--accent); font-weight: 800; }
.topbar-date { color: var(--text-faint); font-size: .8rem; font-weight: 600; }

.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 30;
  height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  display: flex;
  background: rgba(14,17,22,.92);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
}
.tab {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  background: none; border: none; color: var(--text-faint); font-size: .72rem; font-weight: 700; position: relative;
  cursor: pointer; font-family: inherit;
}
.tab svg { width: 23px; height: 23px; fill: currentColor; }
.tab.active { color: var(--accent); }

.view { padding: 4px 16px 24px; max-width: 560px; margin: 0 auto; }

/* ---------- shared ---------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; margin-bottom: 12px;
}
.section-title {
  font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-faint); margin: 18px 4px 8px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--accent); color: #17110a; border: none; border-radius: 12px;
  font: inherit; font-weight: 800; font-size: .95rem; padding: 13px 18px; cursor: pointer;
  width: 100%;
}
.btn:active { transform: scale(.985); }
.btn.secondary { background: var(--card-2); color: var(--text); border: 1px solid var(--line); }
.btn.danger { background: var(--red-soft); color: var(--red); }
.btn-ghost {
  background: none; border: 1px solid var(--line); border-radius: 10px; color: var(--text-dim);
  font: inherit; font-weight: 700; font-size: .82rem; padding: 10px 14px; min-height: 44px; cursor: pointer;
}
.btn-row { display: flex; gap: 10px; }
.btn-row .btn { flex: 1; }
.hidden { display: none !important; }
.muted { color: var(--text-dim); font-size: .85rem; }
.faint { color: var(--text-faint); font-size: .8rem; }

.pill {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  font-size: .7rem; font-weight: 800; letter-spacing: .03em;
}
.pill.amber { background: var(--accent-soft); color: var(--accent); }
.pill.green { background: var(--green-soft); color: var(--green); }
.pill.blue  { background: var(--blue-soft);  color: var(--blue); }
.pill.red   { background: var(--red-soft);   color: var(--red); }
.pill.gray  { background: var(--card-2); color: var(--text-dim); }

/* ---------- day picker ---------- */
.day-card {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  cursor: pointer;
}
.day-card.suggested { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.day-card h3 { font-size: 1.05rem; font-weight: 800; }
.day-card .day-meta { color: var(--text-faint); font-size: .78rem; margin-top: 3px; }
.day-arrow { color: var(--text-faint); font-size: 1.2rem; }

.hero {
  background: linear-gradient(135deg, var(--card) 0%, var(--card-2) 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; margin-bottom: 14px;
}
.hero h2 { font-size: 1.05rem; margin-bottom: 4px; }

/* ---------- active workout ---------- */
.workout-head {
  display: flex; align-items: center; justify-content: space-between; margin: 6px 2px 12px;
}
.workout-head h2 { font-size: 1.3rem; font-weight: 800; }
.ex-card { padding: 0; overflow: hidden; }
.ex-head { padding: 13px 15px 4px; cursor: pointer; }
.ex-title-row { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.ex-name { font-weight: 800; font-size: .98rem; }
.ex-target { color: var(--accent); font-weight: 800; font-size: .95rem; white-space: nowrap; }
.ex-sub { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 4px; color: var(--text-dim); font-size: .8rem; }
.plate-math { color: var(--text-faint); font-size: .78rem; margin-top: 4px; }
.plate-math b { color: var(--text-dim); font-weight: 700; }
.ex-note-line { color: var(--blue); font-size: .78rem; margin-top: 4px; }

.set-dots { display: flex; gap: 8px; padding: 10px 15px 13px; flex-wrap: wrap; }
.set-dot {
  min-width: 52px; height: 44px; border-radius: 11px; border: 1.5px dashed var(--line-strong);
  background: none; color: var(--text-dim); font: inherit; font-weight: 800; font-size: .9rem;
  cursor: pointer; display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 0 8px;
}
.set-dot.next { border-style: solid; border-color: var(--accent); color: var(--accent); }
.set-dot.done { border-style: solid; border-color: transparent; background: var(--card-2); color: var(--text); }
.set-dot.done.e-easy  { box-shadow: inset 0 -3px 0 var(--green); }
.set-dot.done.e-solid { box-shadow: inset 0 -3px 0 var(--blue); }
.set-dot.done.e-grind { box-shadow: inset 0 -3px 0 var(--red); }
.set-dot small { font-size: .62rem; font-weight: 700; color: var(--text-faint); }

/* set logger (inline expand) */
.logger { border-top: 1px solid var(--line); background: var(--bg-2); padding: 14px 15px; }
.logger-row { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.stepper { display: flex; align-items: center; justify-content: space-between; gap: 2px; flex: 1; min-width: 0; background: var(--card-2); border-radius: 12px; border: 1px solid var(--line); }
.stepper button {
  width: 44px; flex: 0 0 44px; height: 48px; border: none; background: none; color: var(--accent);
  font-size: 1.4rem; font-weight: 800; cursor: pointer; font-family: inherit;
}
.stepper .stepper-val { min-width: 0; flex: 1; text-align: center; font-weight: 800; font-size: 1.15rem; }
.stepper .stepper-val small { display: block; font-size: .62rem; color: var(--text-faint); font-weight: 700; letter-spacing: .05em; }
.effort-row { display: flex; gap: 8px; margin-bottom: 12px; }
.effort-btn {
  flex: 1; padding: 11px 0; min-height: 46px; border-radius: 11px; border: 1px solid var(--line); background: var(--card-2);
  color: var(--text-dim); font: inherit; font-weight: 800; font-size: .85rem; cursor: pointer;
}
.effort-btn.sel-easy  { background: var(--green-soft); border-color: var(--green); color: var(--green); }
.effort-btn.sel-solid { background: var(--blue-soft);  border-color: var(--blue);  color: var(--blue); }
.effort-btn.sel-grind { background: var(--red-soft);   border-color: var(--red);   color: var(--red); }
.logger textarea, .modal textarea, .modal input[type=text], .modal input[type=number], .cardio-form input, .cardio-form textarea {
  width: 100%; background: var(--card-2); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); font: inherit; font-size: 16px; padding: 10px 12px; min-height: 44px; resize: none; /* 16px stops iOS focus-zoom */
}
.logger textarea { margin-bottom: 12px; }

/* rest bar */
.rest-bar {
  position: fixed; left: 12px; right: 12px; bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 10px);
  z-index: 40; background: var(--card-2); border: 1px solid var(--accent);
  border-radius: 14px; padding: 10px 14px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,.5);
  max-width: 560px; margin: 0 auto;
}
.rest-label { font-size: .6rem; font-weight: 800; letter-spacing: .12em; color: var(--text-faint); }
.rest-time { font-size: 1.3rem; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--accent); }
.rest-progress { flex: 1; height: 5px; border-radius: 3px; background: var(--line); overflow: hidden; }
.rest-progress-fill { height: 100%; background: var(--accent); width: 100%; transition: width 1s linear; }
.rest-actions { display: flex; gap: 6px; }

/* ---------- modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 50;
  display: flex; align-items: flex-end; justify-content: center;
}
.modal {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 20px 20px 0 0;
  padding: 20px 18px calc(20px + env(safe-area-inset-bottom));
  width: 100%; max-width: 560px; max-height: 86dvh; overflow-y: auto;
}
.modal h3 { font-size: 1.1rem; margin-bottom: 6px; }
.modal .muted { margin-bottom: 14px; }
.check-row { display: flex; gap: 8px; margin: 10px 0 16px; }

/* progression banners */
.prog-banner { border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; font-size: .88rem; }
.prog-banner.up   { background: var(--green-soft); border: 1px solid var(--green); }
.prog-banner.down { background: var(--red-soft); border: 1px solid var(--red); }
.prog-banner.info { background: var(--blue-soft); border: 1px solid var(--blue); }
.prog-banner b { font-weight: 800; }
.prog-banner .prog-actions { display: flex; gap: 8px; margin-top: 10px; }
.prog-banner .btn-ghost { flex: 1; color: var(--text); }
.prog-banner .btn-ghost.primary { border-color: var(--green); color: var(--green); font-weight: 800; }
.prog-banner.down .btn-ghost.primary { border-color: var(--red); color: var(--red); }

/* ---------- progress tab ---------- */
.ex-picker { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 10px; scrollbar-width: none; }
.ex-picker::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto; padding: 10px 16px; min-height: 40px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--card); color: var(--text-dim); font: inherit; font-size: .8rem; font-weight: 700; cursor: pointer;
  white-space: nowrap;
}
.chip.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.chart-wrap { margin: 4px 0 8px; }
.chart-wrap svg { width: 100%; height: auto; display: block; }
.stat-row { display: flex; gap: 10px; margin-bottom: 12px; }
.stat {
  flex: 1; background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 12px; text-align: center;
}
.stat .stat-val { font-size: 1.15rem; font-weight: 800; color: var(--text); }
.stat .stat-label { font-size: .64rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--text-faint); margin-top: 2px; }
.hist-item { cursor: pointer; }
.hist-head { display: flex; justify-content: space-between; align-items: baseline; }
.hist-detail { margin-top: 10px; border-top: 1px solid var(--line); padding-top: 10px; font-size: .84rem; color: var(--text-dim); }
.hist-detail div { margin-bottom: 4px; }

/* ---------- cardio ---------- */
.kind-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.cardio-form .form-row { display: flex; gap: 10px; margin-bottom: 12px; }
.cardio-form label { display: block; font-size: .7rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 5px; }
.cardio-form .form-row > div { flex: 1; }

/* ---------- coach ---------- */
.coach-pre {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .72rem;
  color: var(--text-dim); white-space: pre-wrap; max-height: 300px; overflow-y: auto;
  user-select: text; -webkit-user-select: text;
}
.settings-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); gap: 12px; }
.settings-row:last-child { border-bottom: none; }
.settings-row .s-label { font-size: .88rem; font-weight: 600; }
.settings-row .s-sub { color: var(--text-faint); font-size: .74rem; margin-top: 2px; }
.settings-row input { width: 130px; text-align: right; background: var(--card-2); border: 1px solid var(--line); border-radius: 8px; color: var(--text); font: inherit; font-size: 16px; padding: 7px 10px; min-height: 44px; }

.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 14px);
  background: var(--card-2); border: 1px solid var(--green); color: var(--text);
  padding: 10px 18px; border-radius: 999px; font-size: .85rem; font-weight: 700; z-index: 60;
  animation: toastin .2s ease;
}
@keyframes toastin { from { opacity: 0; transform: translateX(-50%) translateY(8px); } }

@media (min-width: 700px) {
  html { font-size: 17px; }
  .modal-backdrop { align-items: center; }
  .modal { border-radius: 20px; }
}

/* ---------- data-safety banner ---------- */
.banner { border-radius: var(--radius); padding: 12px 14px; margin: 4px 0 12px; font-size: .85rem; line-height: 1.4; color: var(--text); }
.banner.danger { background: var(--red-soft); border: 1px solid var(--red); }
.banner b { display: block; margin-bottom: 2px; }
.link { color: var(--accent); font-weight: 700; }
.banner.warn { background: var(--accent-soft); border: 1px solid var(--accent); }
.set-dot.extra { border-style: solid; border-color: var(--line); color: var(--text-dim); font-size: 1.2rem; }
.btn-ghost.danger { color: var(--red); border-color: var(--red); }

/* keep the rest bar from covering the bottom of the page (Finish workout) */
body.resting { padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 84px); }
body.resting .toast { bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 90px); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- a11y / polish ---------- */
.rest-actions .btn-ghost { min-width: 56px; }
.cardio-form input, .settings-row input { min-height: 44px; }
input[type=number] { -moz-appearance: textfield; appearance: textfield; }
input[type=number]::-webkit-inner-spin-button, input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
/* day cards / history rows are real buttons now — reset UA button styles */
button.day-card, button.hist-toggle {
  width: 100%; text-align: left; font: inherit; color: inherit; cursor: pointer;
}
button.hist-toggle { background: none; border: none; padding: 0; display: flex; gap: 8px; }
.hist-actions { display: flex; justify-content: flex-end; margin-top: 8px; }
.cardio-item .hist-actions { margin-top: 6px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
/* amber dot on the Workout tab while a session is open */
.tab.live::after {
  content: ''; position: absolute; top: 10px; right: calc(50% - 16px);
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
/* pinch-zoom stays available, but rapid double-taps on steppers must not zoom the page */
html, button, a, [role=button] { touch-action: manipulation; }
.day-card .day-title { display: block; font-size: 1.05rem; font-weight: 800; }
.day-card .day-meta { display: block; }
.cardio-form .form-row > div { min-width: 0; }
.cardio-form input[type=date] { -webkit-appearance: none; appearance: none; display: block; min-width: 0; }

/* ---------- github sync ---------- */
.topbar-right { display: flex; align-items: center; gap: 6px; }
.sync-dot {
  width: 44px; height: 44px; margin: -14px -12px -14px 0; /* big tap target, small footprint */
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: none; border-radius: 50%; cursor: pointer;
}
.sync-dot > span, .sync-dot-inline {
  display: inline-block; width: 10px; height: 10px; border-radius: 50%;
  background: var(--text-faint); box-shadow: 0 0 0 3px var(--card-2);
}
.sync-dot-inline { width: 9px; height: 9px; margin-right: 8px; flex: none; box-shadow: none; }
.s-synced > span, .sync-dot-inline.s-synced, .s-idle > span, .sync-dot-inline.s-idle { background: var(--green); }
.s-syncing > span, .sync-dot-inline.s-syncing { background: var(--blue); animation: syncPulse 1s ease-in-out infinite alternate; }
.s-offline > span, .sync-dot-inline.s-offline { background: var(--text-faint); }
.s-error > span, .sync-dot-inline.s-error { background: var(--red); }
.s-signedout > span, .sync-dot-inline.s-signedout { background: transparent; box-shadow: inset 0 0 0 2px var(--accent); }
@keyframes syncPulse { from { opacity: 1; } to { opacity: .35; } }
.sync-line { display: flex; align-items: center; flex-wrap: wrap; gap: 2px 0; margin-bottom: 6px; font-size: .92rem; }
.sync-when { margin-left: auto; padding-left: 10px; }
.sync-path { margin-top: 4px; overflow-wrap: anywhere; }
.sync-err { color: var(--red); font-size: .8rem; margin: 2px 0 4px; overflow-wrap: anywhere; }
.sync-hint { margin-top: 8px; }
.sync-err:empty { display: none; }
.sync-warn { color: var(--accent); font-size: .8rem; margin: 2px 0 4px; overflow-wrap: anywhere; }
.sync-howto { margin: 0 0 12px; font-size: .85rem; color: var(--text-dim); }
.sync-howto summary { cursor: pointer; font-weight: 700; color: var(--text); min-height: 32px; display: flex; align-items: center; }
.sync-howto ol { margin: 6px 0 0; padding-left: 20px; }
.sync-howto li { margin: 4px 0; overflow-wrap: anywhere; }
.sync-card code { font-size: .78rem; background: var(--card-2); padding: 1px 5px; border-radius: 5px; }
.sync-code-label { display: block; font-size: .82rem; font-weight: 700; color: var(--text-dim); margin-bottom: 6px; }
.sync-card input[type=text], .sync-card input[type=password] {
  width: 100%; background: var(--card-2); border: 1px solid var(--line); border-radius: 10px; color: var(--text);
  font: inherit; font-size: 16px; padding: 10px 12px; min-height: 44px;
}
a.btn { text-decoration: none; }
.link-btn {
  display: block; width: 100%; text-align: center; margin-top: 10px; padding: 10px 0; min-height: 44px;
  color: var(--accent); font-weight: 700; font-size: .85rem; text-decoration: none; background: none; border: none; cursor: pointer;
}
.backup-card .btn-row .btn-ghost { flex: 1; }