:root {
  --green: #2d5a3d;
  --green-soft: #3f7a55;
  --green-pale: #d9e6dd;
  --cream: #f7f5ef;
  --cream-2: #efece3;
  --ink: #1a1a1a;
  --muted: #6b6b6b;
  --line: #d8d4c4;
  --warn: #c25a3d;
  --gold: #b78a2c;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  padding-bottom: 88px; /* room for bottom nav */
}

a { color: var(--green); }

button {
  font: inherit;
  cursor: pointer;
}

/* --- Header --- */
.app-header {
  padding: 28px 20px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--cream);
}
.app-title {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--green);
  text-transform: uppercase;
}
.app-sub {
  margin: 4px 0 0;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
}

/* --- Layout --- */
.page {
  padding: 20px;
  max-width: 720px;
  margin: 0 auto;
}
.section {
  margin-bottom: 28px;
}
.section h2 {
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
  font-weight: 700;
}

/* --- Cards --- */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.card.accent {
  border-left: 4px solid var(--green);
}

/* --- Bottom nav --- */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  background: #fff;
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
  z-index: 50;
}
.bottom-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 4px;
  text-decoration: none;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.bottom-nav a .ico {
  font-size: 18px;
  line-height: 1;
  margin-bottom: 4px;
}
.bottom-nav a.active {
  color: var(--green);
  font-weight: 700;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  background: var(--green);
  color: #fff;
  border: 1px solid var(--green);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-decoration: none;
}
.btn.secondary {
  background: #fff;
  color: var(--green);
}
.btn.danger {
  background: #fff;
  color: var(--warn);
  border-color: var(--warn);
}
.btn:disabled { opacity: 0.5; cursor: default; }
.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* --- Inputs --- */
input[type="text"], input[type="number"], input[type="date"], textarea, select {
  font: inherit;
  width: 100%;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--ink);
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(45, 90, 61, 0.15);
}
.label {
  display: block;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

/* --- Exercise blocks --- */
.exercise {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 10px;
}
.exercise.complete {
  background: var(--green-pale);
  border-color: var(--green-soft);
}
.exercise-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.exercise-move {
  font-weight: 700;
  font-size: 15px;
  margin: 0 0 4px;
}
.exercise-meta {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1px;
}
.exercise-note {
  font-size: 13px;
  color: #444;
  margin: 8px 0 0;
  line-height: 1.45;
}
.complete-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.complete-toggle input {
  width: 18px;
  height: 18px;
  accent-color: var(--green);
}

.set-grid {
  display: grid;
  grid-template-columns: 32px 1fr 1fr;
  gap: 6px;
  margin-top: 10px;
  align-items: center;
}
.set-grid .set-label {
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  letter-spacing: 1px;
}
.set-grid input {
  padding: 6px 8px;
  font-size: 14px;
}
.set-grid .head {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  text-align: center;
}

/* --- Swap / add controls --- */
.exercise-actions {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.btn.tiny {
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: 1px;
  border-radius: 6px;
}
.add-row {
  display: flex;
  gap: 6px;
  margin: 8px 0 16px;
  align-items: center;
}
.add-row select { flex: 1; }
.exercise.added { border-left: 4px solid var(--gold); }
.exercise.swapped { border-left: 4px solid var(--green-soft); }
.swap-banner {
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* --- Block titles --- */
.block-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--cream-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 16px 0 8px;
  cursor: pointer;
  user-select: none;
}
.block-head:first-child { margin-top: 0; }
.block-name {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 700;
}
.block-toggle { color: var(--muted); font-weight: 700; }

/* --- Calendar --- */
.cal-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.cal-month {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.cal-dow {
  text-align: center;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
  padding: 6px 0;
  text-transform: uppercase;
}
.cal-cell {
  aspect-ratio: 1 / 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
  cursor: pointer;
  position: relative;
  font-size: 12px;
}
.cal-cell.empty { background: transparent; border-color: transparent; cursor: default; }
.cal-cell.today { box-shadow: 0 0 0 2px var(--green); }
.cal-cell.selected { background: var(--green-pale); }
.cal-cell .num {
  font-weight: 600;
  color: var(--ink);
}
.cal-cell .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  align-self: flex-end;
}
.dot.full { background: var(--green); }
.dot.partial { background: var(--gold); }
.dot.started { background: #aaa; }
.dot.missed { background: #c0c0c0; }
.dot.future { background: transparent; border: 1px dashed var(--line); }
.cal-cell .rest {
  font-size: 9px;
  color: var(--muted);
  letter-spacing: 1px;
  align-self: flex-end;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 12px;
}
.legend .item { display: flex; align-items: center; gap: 6px; }
.legend .swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* --- Stats --- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 6px;
  text-align: center;
}
.stat .v { font-size: 22px; font-weight: 800; color: var(--green); line-height: 1; }
.stat .l { font-size: 10px; letter-spacing: 2px; color: var(--muted); margin-top: 6px; text-transform: uppercase; }

/* --- Phase tabs --- */
.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin-bottom: 16px;
}
.tab {
  flex: 0 0 auto;
  padding: 8px 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--muted);
  text-transform: uppercase;
}
.tab.active {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}

/* --- Day list (program page) --- */
.day-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-bottom: 12px;
}
@media (min-width: 768px) {
  .day-list { grid-template-columns: 1fr 1fr; }
}
.day-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  transition: background 0.15s, border-color 0.15s;
}
.day-row.active {
  background: var(--green-pale);
  border-color: var(--green-soft);
}
.day-row.rest {
  background: var(--cream-2);
}
.day-row.rest .day-info strong { color: var(--muted); letter-spacing: 2px; }
.day-row.dragging { opacity: 0.4; }
.day-row.drag-over { border-color: var(--green); box-shadow: 0 0 0 2px var(--green-pale) inset; }
.day-info {
  flex: 1;
  min-width: 0;
  cursor: pointer;
  user-select: none;
}
.day-info strong {
  display: block;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--green);
  font-weight: 700;
}
.day-info .day-title {
  display: block;
  font-size: 13px;
  color: var(--ink);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.day-row.rest .day-info .day-title { color: var(--muted); }
.day-actions { display: flex; align-items: center; gap: 2px; flex: 0 0 auto; }
.day-icon-btn {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  padding: 0;
}
.day-icon-btn:hover { background: var(--cream-2); color: var(--green); }
.day-icon-btn:disabled { opacity: 0.3; cursor: default; }
.day-icon-btn.handle { cursor: grab; touch-action: none; }
.day-icon-btn.handle:active { cursor: grabbing; }
.day-icon-btn svg { display: block; }

.week-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin-bottom: 12px;
}
.week-tab {
  flex: 0 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--muted);
}
.week-tab.active {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}
.reset-row { display: flex; justify-content: flex-end; margin-bottom: 16px; }

/* --- Tracker / PR cards --- */
.pr-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.pr {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
}
.pr .label { color: var(--muted); font-size: 11px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 4px; }
.pr .v { font-size: 28px; font-weight: 800; color: var(--green); line-height: 1; }
.pr .meta { font-size: 12px; color: var(--muted); margin-top: 4px; }
.pr-form { display: flex; gap: 6px; margin-top: 10px; }
.pr-form input { flex: 1; }

canvas.bw-chart {
  width: 100%;
  height: 180px;
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

/* --- Toast / messages --- */
.msg {
  background: var(--green-pale);
  color: var(--green);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 12px;
}

/* --- Misc --- */
.muted { color: var(--muted); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.tag {
  display: inline-block;
  background: var(--cream-2);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
}
.tag.green { background: var(--green-pale); color: var(--green); }
.divider { border: 0; border-top: 1px solid var(--line); margin: 16px 0; }