/* ============================================================================
 * styles.css — mobile-first dark "athletic" theme.
 * Accent: Pepper Effect green #19A27A.
 * ==========================================================================*/

:root {
  --bg:        #0e1411;
  --bg-2:      #141d18;
  --card:      #18241e;
  --card-2:    #1f2e26;
  --line:      #29382f;
  --text:      #eaf2ee;
  --muted:     #8fa79b;
  --accent:    #19A27A;
  --accent-2:  #21c794;
  --danger:    #e0584f;
  --warn:      #e0a94f;
  --z1:        #4a90d9;
  --z2:        #19A27A;
  --z3:        #e0a94f;
  --z4:        #e0584f;
  --radius:    16px;
  --tap:       48px;
  --safe-top:    env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  overscroll-behavior-y: none;
}

#app { display: flex; flex-direction: column; min-height: 100%; }

/* ---------- Top bar ---------- */
#topbar {
  position: sticky; top: 0; z-index: 20;
  display: grid; grid-template-columns: var(--tap) 1fr var(--tap);
  align-items: center;
  padding-top: var(--safe-top);
  height: calc(52px + var(--safe-top));
  background: rgba(14,20,17,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
#topTitle { text-align: center; font-weight: 700; font-size: 17px; }
.icon-btn {
  height: var(--tap); width: var(--tap);
  background: none; border: none; color: var(--text);
  font-size: 24px; cursor: pointer;
}
#rulesBtn { color: var(--accent-2); }
#backBtn { font-size: 30px; }

/* ---------- Main view ---------- */
#view {
  flex: 1;
  padding: 16px 16px calc(96px + var(--safe-bottom));
  max-width: 640px; width: 100%; margin: 0 auto;
}

/* ---------- Tab bar ---------- */
#tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 20;
  display: flex;
  padding-bottom: var(--safe-bottom);
  background: rgba(14,20,17,0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
}
.tab {
  flex: 1; height: 56px; background: none; border: none;
  color: var(--muted); font-size: 12px; font-weight: 600; cursor: pointer;
  letter-spacing: 0.02em;
}
.tab.active { color: var(--accent-2); }

/* ---------- Cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px; margin-bottom: 14px;
}
.card.tight { padding: 12px 14px; }
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.eyebrow { color: var(--accent-2); font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
h1 { font-size: 26px; margin: 4px 0 2px; }
h2 { font-size: 20px; margin: 18px 2px 10px; }
h3 { font-size: 16px; margin: 0 0 4px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.pill {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: var(--card-2); color: var(--muted); font-size: 12px; font-weight: 600;
  border: 1px solid var(--line);
}
.pill.accent { background: rgba(25,162,122,0.16); color: var(--accent-2); border-color: rgba(25,162,122,0.4); }

/* ---------- Buttons ---------- */
.btn {
  display: block; width: 100%; min-height: var(--tap);
  border: none; border-radius: 12px; cursor: pointer;
  font-size: 16px; font-weight: 700; color: #06120d;
  background: var(--accent); padding: 12px 16px;
}
.btn:active { transform: translateY(1px); }
.btn.secondary { background: var(--card-2); color: var(--text); border: 1px solid var(--line); }
.btn.ghost { background: none; color: var(--accent-2); border: 1px solid var(--line); }
.btn.danger { background: none; color: var(--danger); border: 1px solid rgba(224,88,79,0.5); }
.btn.small { min-height: 38px; font-size: 14px; padding: 8px 12px; width: auto; display: inline-block; }
.btn-row { display: flex; gap: 10px; }
.btn-row .btn { flex: 1; }

/* ---------- Exercise / set rows ---------- */
.ex { border-bottom: 1px solid var(--line); padding: 14px 0; }
.ex:last-child { border-bottom: none; }
.ex-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.ex-name { font-weight: 700; font-size: 16px; }
.ex-prescr { color: var(--accent-2); font-weight: 700; font-size: 13px; white-space: nowrap; }
.ex-note { color: var(--muted); font-size: 13px; margin-top: 4px; }
.ex-last { color: var(--muted); font-size: 12px; margin-top: 4px; }
.superset-wrap { border-left: 3px solid var(--accent); padding-left: 12px; margin: 6px 0; }
.superset-label { color: var(--accent-2); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }

.sets { margin-top: 10px; display: flex; flex-direction: column; gap: 8px; }
.set-row { display: flex; align-items: center; gap: 8px; }
.set-no { width: 26px; color: var(--muted); font-size: 13px; font-weight: 700; }
.set-row input {
  width: 100%; min-width: 0; height: 44px; text-align: center;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); font-size: 16px; font-weight: 600;
}
.set-row input:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
.set-row .unit { color: var(--muted); font-size: 12px; width: 22px; }
.set-done {
  width: 44px; height: 44px; flex: 0 0 44px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg-2); color: var(--muted);
  font-size: 20px; cursor: pointer;
}
.set-done.on { background: var(--accent); border-color: var(--accent); color: #06120d; }
.field-label { display: block; color: var(--muted); font-size: 11px; text-align: center; margin-bottom: 2px; }

/* ---------- Block done check (timed / informational) ---------- */
.block-check {
  display: flex; align-items: center; gap: 12px; margin-top: 10px;
}
.block-check .set-done { flex: 0 0 44px; }
.timer-btn { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- Progress bar ---------- */
.progress { height: 8px; background: var(--bg-2); border-radius: 999px; overflow: hidden; margin: 10px 0 4px; }
.progress > div { height: 100%; background: var(--accent); width: 0; transition: width 0.3s; }

/* ---------- Warmup / list items ---------- */
.list-item { display: flex; justify-content: space-between; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.list-item:last-child { border-bottom: none; }
.list-item .lead { font-weight: 600; }
.list-item .trail { color: var(--accent-2); font-weight: 700; font-size: 13px; white-space: nowrap; }

/* ---------- Zones ---------- */
.zonebar { display: flex; height: 22px; border-radius: 6px; overflow: hidden; margin-top: 8px; border: 1px solid var(--line); }
.zonebar > span { display: block; }
.zone-Z1 { background: var(--z1); } .zone-Z2 { background: var(--z2); }
.zone-Z3 { background: var(--z3); } .zone-Z4 { background: var(--z4); } .zone-Z5 { background: #b03a8f; }
.zone-key { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; font-size: 12px; color: var(--muted); }
.zone-key b { color: var(--text); }
.swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }

/* ---------- Modal (rules / timer) ---------- */
#modalHost {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(4,8,6,0.75); backdrop-filter: blur(4px);
  display: flex; align-items: flex-end; justify-content: center;
}
/* The [hidden] attribute alone is beaten by the display rule above, which left
   this overlay permanently on top of the app. This restores hide-when-hidden. */
#modalHost[hidden] { display: none !important; }
.modal {
  width: 100%; max-width: 640px; max-height: 92vh; overflow-y: auto;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 20px 20px 0 0; padding: 18px 18px calc(24px + var(--safe-bottom));
  animation: slideUp 0.22s ease;
}
@keyframes slideUp { from { transform: translateY(30px); opacity: 0.6; } to { transform: none; opacity: 1; } }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.modal-head h2 { margin: 0; }
.modal-close { background: none; border: none; color: var(--muted); font-size: 26px; cursor: pointer; }

/* ---------- Timer modal ---------- */
.timer-display { text-align: center; padding: 8px 0 4px; }
.timer-step { color: var(--accent-2); font-weight: 700; min-height: 22px; }
.timer-clock { font-size: 72px; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.1; margin: 6px 0; }
.timer-sub { color: var(--muted); font-size: 13px; }
.timer-clock.work { color: var(--accent-2); } .timer-clock.rest { color: var(--z1); }
.timer-clock.prep { color: var(--warn); }

/* ---------- Inputs (settings) ---------- */
.form-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.form-row:last-child { border-bottom: none; }
.form-row label { font-weight: 600; }
.form-row .hint { color: var(--muted); font-size: 12px; }
.form-row input, .form-row select {
  height: 44px; min-width: 120px; text-align: right;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); font-size: 16px; padding: 0 12px;
}
.form-row input[type=date] { text-align: left; }

/* ---------- Misc ---------- */
.banner {
  border-radius: 12px; padding: 12px 14px; margin-bottom: 14px; font-size: 14px;
  border: 1px solid var(--line); background: var(--card);
}
.banner.good { border-color: rgba(25,162,122,0.45); background: rgba(25,162,122,0.12); }
.banner.caution { border-color: rgba(224,169,79,0.5); background: rgba(224,169,79,0.12); }
.center { text-align: center; }
.stack > * + * { margin-top: 10px; }
.spacer { height: 8px; }
hr.sep { border: none; border-top: 1px solid var(--line); margin: 14px 0; }
.kbd { font-family: ui-monospace, Menlo, monospace; background: var(--bg-2); padding: 1px 6px; border-radius: 6px; border: 1px solid var(--line); font-size: 13px; }