/* ─── Reset ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ─── Variables ──────────────────────────────────────────────────── */
:root {
  --bg:   #f4f9f5;
  --bg-2: #eaf4eb;

  /* Surfaces */
  --glass:    rgba(255,255,255,0.84);
  --glass-hi: rgba(255,255,255,0.96);
  --gb:       rgba(0,0,0,0.08);
  --gb-hi:    rgba(0,0,0,0.15);

  /* Text */
  --text:   #0d1a0d;
  --text-2: #4d6b4d;
  --text-3: #8faa8f;

  /* Green accent (var names kept as --blue for CSS compatibility) */
  --blue:      #16a34a;
  --blue-dim:  #15803d;
  --blue-bg:   rgba(22,163,74,0.09);
  --blue-glow: rgba(22,163,74,0.18);

  /* Semantic */
  --green:     #16a34a;
  --green-bg:  rgba(22,163,74,0.09);
  --amber:     #d97706;
  --amber-bg:  rgba(217,119,6,0.10);
  --danger:    #dc2626;
  --danger-bg: rgba(220,38,38,0.08);

  /* Running accent — teal, distinct from cycling green at a glance */
  --run:      #0f766e;
  --swim:     #0369a1;
  --strength: #7c3aed;
  --run-dim:  #115e59;
  --run-bg:   rgba(15,118,110,0.09);
  --run-glow: rgba(15,118,110,0.18);

  /* Zone colours — semantic training zones */
  --z1: #64748b;
  --z2: #2563eb;
  --z3: #15803d;
  --z4: #ca8a04;
  --z5: #ea580c;
  --z6: #dc2626;
  --z7: #7c3aed;

  --r:       8px;
  --shadow:  0 1px 3px rgba(0,0,0,.07), 0 4px 16px rgba(0,0,0,.04);
  --shadow2: 0 8px 30px rgba(0,0,0,.12), 0 2px 8px rgba(0,0,0,.06);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, "Fira Code", monospace;
}

/* ─── Base ───────────────────────────────────────────────────────── */
html, body {
  height: 100%;
  background-color: var(--bg);
  background-image: radial-gradient(ellipse 70% 40% at 50% -5%,
    rgba(22,163,74,0.08) 0%, transparent 60%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ─── Header ─────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: stretch;
  padding: 0 24px;
  height: 54px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  white-space: nowrap;
  margin-right: 28px;
  flex-shrink: 0;
  text-decoration: none;
}
.logo svg { color: var(--blue); }
.logo .accent-word,
.auth-logo .accent-word {
  background: linear-gradient(100deg, #16a34a 20%, #4ade80 85%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* Tab nav */
.tab-nav {
  display: flex;
  align-items: stretch;
  flex: 1;
}
.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-2);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 0 14px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  white-space: nowrap;
  margin-bottom: -1px;
  letter-spacing: .005em;
}
.tab-btn:hover  { color: var(--text); }
.tab-btn.active {
  color: var(--text);
  border-bottom-color: var(--blue);
  font-weight: 600;
}

.header-status { display: flex; align-items: center; margin-left: auto; }

.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-2);
  padding: 5px 11px;
  border-radius: 20px;
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.07);
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-3);
  transition: background .3s, box-shadow .3s;
}
.status-dot.connected {
  background: var(--green);
  box-shadow: 0 0 6px rgba(22,163,74,.5);
}

/* ─── Layout ─────────────────────────────────────────────────────── */
main { padding: 0; }
.tab-content {
  display: none;
  padding: 24px 28px;
  max-width: 1300px;
  margin: 0 auto;
}
.tab-content.active { display: block; }

/* ─── Glass utility ──────────────────────────────────────────────── */
.glass {
  background: var(--glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--gb);
  box-shadow: var(--shadow);
}

/* ─── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--r);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .12s, box-shadow .12s, border-color .12s, transform .08s;
  white-space: nowrap;
  letter-spacing: .01em;
}
.btn:active   { transform: scale(.97); }
.btn:disabled { opacity: .35; cursor: not-allowed; pointer-events: none; }

.btn-start {
  background: var(--blue);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 1px 3px rgba(0,0,0,.15), 0 0 14px rgba(22,163,74,.20);
}
.btn-start:hover:not(:disabled) {
  background: var(--blue-dim);
  box-shadow: 0 2px 6px rgba(0,0,0,.18), 0 0 20px rgba(22,163,74,.28);
}

.btn-run, .run-plan-btn {
  background: var(--run) !important;
  box-shadow: 0 1px 3px rgba(0,0,0,.15), 0 0 14px rgba(15,118,110,.20) !important;
}
.btn-run:hover:not(:disabled), .run-plan-btn:hover:not(:disabled) {
  background: var(--run-dim) !important;
  box-shadow: 0 2px 6px rgba(0,0,0,.18), 0 0 20px rgba(15,118,110,.28) !important;
}

.btn-pause {
  background: var(--glass-hi);
  color: var(--text);
  border-color: var(--gb);
}
.btn-pause:hover { background: #fff; border-color: var(--gb-hi); }

.btn-stop {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: rgba(220,38,38,0.22);
}
.btn-stop:hover { background: rgba(220,38,38,0.14); }

.btn-skip {
  background: var(--glass);
  color: var(--text-2);
  border-color: var(--gb);
}
.btn-skip:hover { color: var(--text); background: #fff; border-color: var(--gb-hi); }

.btn-adj {
  background: var(--glass);
  color: var(--text-2);
  border-color: var(--gb);
  padding: 6px 11px;
  font-size: 12px;
  font-weight: 500;
}
.btn-adj:hover { color: var(--text); background: #fff; border-color: var(--gb-hi); }
.btn-sm { font-size: 12px; padding: 4px 10px; }

.btn-add {
  background: var(--green-bg);
  color: var(--blue-dim);
  border-color: rgba(22,163,74,0.28);
  width: 100%;
  font-weight: 600;
}
.btn-add:hover { background: rgba(22,163,74,0.15); }

/* ─── Form elements ──────────────────────────────────────────────── */
select {
  width: 100%;
  background: #fff;
  border: 1px solid var(--gb);
  color: var(--text);
  padding: 8px 32px 8px 11px;
  border-radius: var(--r);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%234d6b4d' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 11px center;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
  transition: border-color .15s, box-shadow .15s;
}
select option { background: #fff; color: var(--text); }
select:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-bg);
}

input[type="number"],
input[type="text"] {
  background: #fff;
  border: 1px solid var(--gb);
  color: var(--text);
  padding: 7px 10px;
  border-radius: var(--r);
  font: inherit;
  font-size: 13px;
  width: 72px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
  transition: border-color .15s, box-shadow .15s;
}
input[type="number"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-bg);
}
input::placeholder { color: var(--text-3); }

.unit  { color: var(--text-3); font-size: 12px; }
.hint  { color: var(--text-3); font-size: 11px; }

/* ─── Ride toolbar ───────────────────────────────────────────────── */
.ride-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.select-wrap { flex: 1; min-width: 220px; }
.ftp-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--text-2);
  white-space: nowrap;
}
.sim-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.sim-toggle input { accent-color: var(--blue); }

/* ─── Today plan banner ──────────────────────────────────────────── */
.today-plan {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--blue-bg);
  border: 1px solid rgba(22,163,74,0.22);
  border-radius: var(--r);
  padding: 9px 14px;
  margin-bottom: 14px;
  font-size: 13px;
}
.today-plan-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--blue-dim);
  white-space: nowrap;
}
.today-plan-name { flex: 1; font-weight: 600; color: var(--text); }

/* ─── Chart ──────────────────────────────────────────────────────── */
.chart-wrap {
  position: relative;
  width: 100%;
  background: #fff;
  border: 1px solid var(--gb);
  border-radius: var(--r);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
#workout-canvas, #create-canvas { display: block; width: 100%; }
.chart-placeholder, .create-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  font-size: 14px;
  pointer-events: none;
}

/* ─── Metrics ────────────────────────────────────────────────────── */
.metrics-row {
  display: flex;
  align-items: center;
  background: var(--glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  padding: 16px 0;
  margin-bottom: 10px;
  overflow-x: auto;
  box-shadow: var(--shadow);
}

.metric {
  flex: 1;
  text-align: center;
  min-width: 76px;
  padding: 0 10px;
}
.metric-value {
  font-size: 32px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  color: var(--text);
  font-family: var(--mono);
  line-height: 1;
  margin-bottom: 5px;
}
.power-metric .metric-value {
  font-size: 46px;
  font-weight: 800;
  color: var(--blue-dim);
  letter-spacing: -0.05em;
}
.target-metric .metric-value {
  font-size: 38px;
  color: var(--text-3);
  font-weight: 600;
}
.metric-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .10em;
  color: var(--text-3);
  font-weight: 600;
}
.metric-divider {
  width: 1px;
  height: 32px;
  background: var(--gb);
  flex-shrink: 0;
}

/* ─── Interval bar ───────────────────────────────────────────────── */
.interval-bar {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  padding: 12px 16px;
  margin-bottom: 10px;
  box-shadow: var(--shadow);
}
.interval-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}
.interval-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(0,0,0,0.05);
  color: var(--text-2);
  border: 1px solid var(--gb);
  white-space: nowrap;
}
.interval-name {
  font-weight: 600;
  font-size: 14px;
  flex: 1;
  color: var(--text);
}
.interval-countdown {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  min-width: 58px;
  text-align: right;
}
.interval-track {
  height: 4px;
  background: rgba(0,0,0,0.07);
  border-radius: 2px;
  overflow: hidden;
}
.interval-fill {
  height: 100%;
  background: linear-gradient(90deg, #15803d, #22c55e);
  border-radius: 2px;
  transition: width .9s linear;
  width: 0%;
}

/* ─── Workout controls ───────────────────────────────────────────── */
.controls-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  padding: 10px 12px;
  box-shadow: var(--shadow);
}
.power-adj { display: flex; align-items: center; gap: 5px; margin-left: auto; }
.adj-label {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-2);
  min-width: 40px;
  text-align: center;
}

/* ─── Zone badges ────────────────────────────────────────────────── */
.badge-recovery      { background: rgba(100,116,139,.09); color: #475569; border-color: rgba(100,116,139,.22) !important; }
.badge-endurance     { background: rgba(37,99,235,.08);   color: #1d4ed8; border-color: rgba(37,99,235,.22)   !important; }
.badge-tempo         { background: rgba(21,128,61,.09);   color: #15803d; border-color: rgba(21,128,61,.22)   !important; }
.badge-threshold     { background: rgba(202,138,4,.09);   color: #a16207; border-color: rgba(202,138,4,.22)   !important; }
.badge-vo2max        { background: rgba(234,88,12,.09);   color: #c2410c; border-color: rgba(234,88,12,.22)   !important; }
.badge-anaerobic     { background: rgba(220,38,38,.09);   color: #b91c1c; border-color: rgba(220,38,38,.22)   !important; }
.badge-neuromuscular { background: rgba(124,58,237,.09);  color: #6d28d9; border-color: rgba(124,58,237,.22)  !important; }

/* ─── Create tab ─────────────────────────────────────────────────── */
.create-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 900px) { .create-layout { grid-template-columns: 1fr; } }

.create-panel {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow);
}
.create-panel h2 { font-size: 15px; font-weight: 700; }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.row { flex-direction: row; align-items: center; gap: 8px; }
.form-group label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-2);
}
.form-group input[type="text"],
.form-group input[type="number"] { width: 100%; }
.form-group.row input { width: auto; flex: 1; }

.intervals-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-2);
  border-top: 1px solid var(--gb);
  padding-top: 14px;
}
.total-time { font-family: var(--mono); color: var(--text); font-weight: 700; }

.intervals-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-height: 220px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--gb) transparent;
}

.interval-row {
  display: grid;
  grid-template-columns: 24px 1fr 58px 50px 26px;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  background: rgba(255,255,255,0.70);
  border: 1px solid var(--gb);
  border-radius: 5px;
  font-size: 12px;
}
.interval-row-num  { color: var(--text-3); font-size: 11px; text-align: center; }
.interval-row-name { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.interval-row-dur  { font-family: var(--mono); font-size: 11px; color: var(--text-2); text-align: right; }
.interval-row-pwr  { font-family: var(--mono); font-size: 12px; font-weight: 700; color: var(--blue-dim); text-align: right; }
.interval-row-del  { background: none; border: none; color: var(--text-3); cursor: pointer; font-size: 14px; padding: 2px 4px; border-radius: 4px; line-height: 1; }
.interval-row-del:hover { color: var(--danger); background: var(--danger-bg); }

.add-block {
  background: rgba(0,0,0,0.025);
  border-radius: var(--r);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--gb);
}
.add-block h3 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-2);
}

.create-actions {
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--gb);
  padding-top: 14px;
}
.create-actions .btn { flex: 1; }

.create-preview {
  position: relative;
  background: #fff;
  border: 1px solid var(--gb);
  border-radius: var(--r);
  overflow: hidden;
  min-height: 240px;
  box-shadow: var(--shadow);
}

/* ─── Devices tab ────────────────────────────────────────────────── */
.devices-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 860px) { .devices-layout { grid-template-columns: 1fr; } }

.devices-panel, .scan-panel {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow);
}
.devices-panel h2, .scan-panel h2 { font-size: 15px; font-weight: 700; }

.device-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.70);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  padding: 12px 14px;
}
.device-icon { display: flex; align-items: center; }
.device-icon svg { color: var(--text-3); }
.device-info { flex: 1; }
.device-name { font-weight: 600; font-size: 14px; }
.device-type { font-size: 11px; color: var(--text-3); margin-top: 1px; }

.device-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: .05em;
  white-space: nowrap;
  border: 1px solid transparent;
}
.device-badge.connected    { background: var(--green-bg); color: var(--blue-dim); border-color: rgba(22,163,74,.28); }
.device-badge.disconnected { background: rgba(0,0,0,.04); color: var(--text-3);   border-color: var(--gb); }

/* Connected apps (Strava etc.) */
.apps-panel { grid-column: 1 / -1; }
.app-icon-strava {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: #fc4c02;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 1px 4px rgba(252,76,2,.3);
}
.btn-strava {
  background: #fc4c02;
  color: #fff;
  font-weight: 700;
  border-color: transparent;
}
.btn-strava:hover { background: #e34402; }
.strava-view {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #fc4c02;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  margin-right: auto;
  align-self: center;
}
.strava-view:hover { text-decoration: underline; }

.scan-header { display: flex; align-items: center; justify-content: space-between; }
.scan-hint {
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.65;
  background: var(--blue-bg);
  border-radius: var(--r);
  padding: 10px 12px;
  border-left: 3px solid var(--blue);
}

.scan-status { font-size: 13px; color: var(--blue-dim); min-height: 20px; }
.scan-status.scanning { display: flex; align-items: center; gap: 8px; }
.scan-status.scanning::before {
  content: '';
  width: 10px;
  height: 10px;
  border: 2px solid var(--blue);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin .75s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

.device-list { display: flex; flex-direction: column; gap: 8px; }
.found-device {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.75);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  padding: 10px 14px;
  transition: border-color .15s, box-shadow .15s;
}
.found-device:hover {
  border-color: rgba(22,163,74,.45);
  box-shadow: 0 0 0 1px rgba(22,163,74,.12);
}
.found-device-name { flex: 1; font-weight: 600; font-size: 13px; }
.found-device-rssi { font-size: 11px; color: var(--text-3); font-family: var(--mono); }
.found-device-btns { display: flex; gap: 6px; }

.btn-connect-trainer {
  background: var(--blue);
  color: #fff;
  border: 1px solid transparent;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 700;
}
.btn-connect-trainer:hover { background: var(--blue-dim); }
.btn-connect-pm {
  background: rgba(0,0,0,0.04);
  color: var(--text-2);
  border: 1px solid var(--gb);
  padding: 5px 10px;
  font-size: 11px;
}
.btn-connect-pm:hover { background: rgba(0,0,0,0.08); }

/* ─── History tab ────────────────────────────────────────────────── */
.history-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 18px;
}
.history-header h2 { font-size: 16px; font-weight: 700; }
.history-count     { font-size: 12px; color: var(--text-3); }

/* Career totals bar */
.history-summary {
  display: flex;
  align-items: center;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gb);
  border-left: 3px solid var(--blue);
  border-radius: var(--r);
  padding: 18px 8px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.history-summary.run-summary { border-left-color: var(--run); }
.hs-stat {
  flex: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-right: 1px solid var(--gb);
}
.hs-stat:last-child { border-right: none; }
.hs-value {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  line-height: 1;
}
.hs-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .10em;
  color: var(--text-3);
  font-weight: 600;
}

/* ─── Dashboard charts ───────────────────────────────────────────── */
.dash-charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 28px;
}
.dash-card-wide { grid-column: 1 / -1; }
@media (max-width: 760px) { .dash-charts-grid { grid-template-columns: 1fr; } }

.dash-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  padding: 16px 16px 14px;
  box-shadow: var(--shadow);
}

.dash-card-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}
.dash-card-head h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}
.dash-card-sub {
  font-size: 11.5px;
  color: var(--text-3);
  font-weight: 500;
}

.dash-chart-wrap { position: relative; width: 100%; }
.dash-chart-wrap canvas { display: block; width: 100%; }
.dash-chart-empty {
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
  color: var(--text-3);
  font-size: 12.5px;
  line-height: 1.6;
}

.dash-tooltip {
  position: absolute;
  display: none;
  background: rgba(13,26,13,0.92);
  color: #fff;
  font-size: 11.5px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 6px;
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
  box-shadow: var(--shadow2);
}

.dash-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--gb);
}
.dash-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-2);
  font-weight: 500;
}
.dash-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dash-zone-bar {
  display: flex;
  height: 30px;
  border-radius: 6px;
  overflow: hidden;
  margin-top: 10px;
  gap: 2px;
}
.dash-zone-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  min-width: 2px;
  transition: flex .3s;
}

.dash-section-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin: 32px 0 12px;
}
.dash-section-title-first { margin-top: 4px; }
.dash-charts-grid-2 { grid-template-columns: 1fr 1fr; }

/* ─── Upcoming Workouts ──────────────────────────────────────────── */
.upcoming-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.upcoming-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--glass);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: background .12s, border-color .12s;
}
.upcoming-card:hover { background: #fff; border-color: var(--gb-hi); }
.upcoming-icon {
  font-size: 18px;
  flex-shrink: 0;
  width: 30px;
  text-align: center;
}
.upcoming-main { flex: 1; min-width: 0; }
.upcoming-title {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.upcoming-sub {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 1px;
}
.upcoming-when {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  background: rgba(0,0,0,0.04);
  padding: 4px 10px;
  border-radius: 20px;
  flex-shrink: 0;
  white-space: nowrap;
}

/* ─── Entry detail modal (run/swim/strength calendar + upcoming) ──── */
.entry-detail-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.entry-detail-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gb);
}
.entry-detail-row:last-child { border-bottom: none; padding-bottom: 0; }
.entry-detail-label {
  font-size: 12.5px;
  color: var(--text-3);
  font-weight: 500;
  flex-shrink: 0;
}
.entry-detail-value {
  font-size: 13.5px;
  color: var(--text);
  font-weight: 600;
  text-align: right;
}

/* ─── Activity tab — sub-nav pills over Cycling/Running/Swimming/Strength ─── */
.activity-subnav {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--gb);
  padding-bottom: 14px;
}
.activity-subtab-btn {
  background: var(--glass);
  border: 1px solid var(--gb);
  color: var(--text-2);
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: background .12s, border-color .12s, color .12s;
}
.activity-subtab-btn:hover { color: var(--text); border-color: var(--gb-hi); }
.activity-subtab-btn.active {
  background: var(--text);
  color: #fff;
  border-color: var(--text);
}
.activity-subpanel { display: none; }
.activity-subpanel.active { display: block; }

.history-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-3);
  background: var(--glass);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  box-shadow: var(--shadow);
}

.history-list { display: flex; flex-direction: column; gap: 8px; }

.ride-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gb);
  border-left: 3px solid var(--gb-hi);
  border-radius: var(--r);
  padding: 15px 20px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 16px;
  align-items: start;
  box-shadow: var(--shadow);
  transition: border-color .15s, border-left-color .15s, box-shadow .15s;
}
.ride-card:hover {
  border-color: rgba(22,163,74,.3);
  border-left-color: var(--blue);
  box-shadow: var(--shadow2);
}

.ride-card-title { font-weight: 700; font-size: 14px; margin-bottom: 2px; }
.ride-card-date  { font-size: 12px; color: var(--text-3); }

.ride-card-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  letter-spacing: .04em;
  text-transform: uppercase;
  align-self: start;
  border: 1px solid transparent;
}
.ride-card-badge.completed  { background: var(--green-bg);  color: var(--blue-dim); border-color: rgba(22,163,74,.28); }
.ride-card-badge.incomplete { background: var(--amber-bg);  color: var(--amber);    border-color: rgba(217,119,6,.28); }

.ride-card-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--gb);
  grid-column: 1 / -1;
}
.ride-stat { display: flex; flex-direction: column; gap: 2px; min-width: 60px; }
.ride-stat-value {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
}
.ride-stat-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-3);
  font-weight: 600;
}
.ride-card-actions {
  display: flex;
  justify-content: flex-end;
  grid-column: 1 / -1;
  margin-top: 2px;
}

/* ─── Plan / Calendar ────────────────────────────────────────────── */
.planner-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0 16px;
}
.planner-header h2 {
  flex: 1;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.cal-weekday-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  margin-bottom: 4px;
  /* Must size identically to .calendar-grid or the day headers drift
     out of alignment with the cells below them. */
  min-width: 0;
}
.cal-weekday-row > div {
  text-align: center;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 2px 0 6px;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  min-width: 0;
}

.cal-cell {
  min-height: 82px;
  /* Grid/flex items default to min-width:auto, so a nowrap chip inside
     would force this cell — and the whole 7-column grid — wider than its
     track. Explicit 0 lets chips truncate instead of blowing out layout. */
  min-width: 0;
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--gb);
  border-radius: 6px;
  padding: 7px 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
  transition: border-color .14s, box-shadow .14s;
}
.cal-cell:hover {
  border-color: rgba(22,163,74,.45);
  box-shadow: 0 0 0 1px rgba(22,163,74,.15), 0 4px 12px rgba(22,163,74,.06);
}
.cal-blank {
  background: transparent;
  backdrop-filter: none;
  border-color: transparent;
  box-shadow: none;
  cursor: default;
}
.cal-blank:hover { border-color: transparent; box-shadow: none; }
.cal-today {
  border-color: rgba(22,163,74,.55);
  background: rgba(22,163,74,.07);
}
.cal-past { opacity: .5; }

.cal-day-num { font-size: 12px; font-weight: 600; color: var(--text-2); line-height: 1; }
.cal-today .cal-day-num { color: var(--blue-dim); font-weight: 700; }

.cal-chip {
  background: var(--blue);
  color: #fff;
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 5px;
  border-radius: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.45;
  /* Without min-width:0 the nowrap text sets this flex item's minimum
     size, so it grows the cell instead of truncating. */
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}
.cal-chip-run { background: var(--run); margin-top: 2px; }
.cal-chip-swim { background: var(--swim); margin-top: 2px; }
.cal-chip-strength { background: var(--strength); margin-top: 2px; }

.cal-dots { display: flex; gap: 3px; flex-wrap: wrap; margin-top: auto; padding-top: 3px; }
.cal-dot  { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.cal-dot.done    { background: var(--blue); }
.cal-dot.run     { background: var(--run); }
.cal-dot.swim     { background: var(--swim); }
.cal-dot.strength { background: var(--strength); }
.cal-dot.partial { background: var(--amber); }
.cal-dot.strava  { background: #fc4c02; }

/* ─── Day modal ──────────────────────────────────────────────────── */
.day-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.20);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.day-modal-card {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(0,0,0,.10);
  border-radius: 12px;
  padding: 26px 26px 20px;
  width: min(460px, 92vw);
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow2);
}
.day-modal-card h3 { font-size: 1.05rem; font-weight: 700; letter-spacing: -0.02em; }
.day-modal-actions { display: flex; gap: 8px; justify-content: flex-end; }

.day-details { display: flex; flex-direction: column; gap: 8px; }
.day-chart-wrap { margin-bottom: 0; }
.day-workout-meta {
  font-size: 12.5px;
  color: var(--text-3);
  text-align: center;
}

/* ─── Auth overlay ───────────────────────────────────────────────── */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}

.auth-card {
  background: #fff;
  border: 1px solid var(--gb);
  border-radius: 14px;
  padding: 36px 32px 28px;
  width: min(420px, 92vw);
  display: flex;
  flex-direction: column;
  gap: 22px;
  box-shadow: var(--shadow2);
}

.auth-brand { display: flex; flex-direction: column; gap: 6px; }
.auth-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
}
.auth-tagline {
  font-size: 13px;
  color: var(--text-2);
  font-weight: 500;
}
.auth-back {
  font-size: 12.5px;
  color: var(--text-3);
  text-decoration: none;
  text-align: center;
  margin-top: -6px;
  transition: color .15s;
}
.auth-back:hover { color: var(--text-2); }

.auth-tabs {
  display: flex;
  gap: 3px;
  background: rgba(0,0,0,0.05);
  padding: 3px;
  border-radius: 9px;
}
.auth-tab {
  flex: 1;
  padding: 7px 12px;
  background: transparent;
  border: none;
  border-radius: 7px;
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-2);
  transition: background .15s, color .15s, box-shadow .15s;
}
.auth-tab.active {
  background: #fff;
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(0,0,0,.10);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-form input[type="email"],
.auth-form input[type="password"],
.auth-form input[type="text"] {
  width: 100%;
}

.auth-error {
  font-size: 13px;
  color: var(--danger);
  min-height: 18px;
  font-weight: 500;
}

.auth-success {
  font-size: 13px;
  color: var(--green);
  background: var(--green-bg);
  border-radius: 8px;
  padding: 8px 10px;
  font-weight: 500;
  text-align: center;
}

.auth-forgot {
  text-align: center;
  margin: -4px 0 0;
}
.auth-forgot a {
  font-size: 12.5px;
  color: var(--text-3);
  text-decoration: none;
}
.auth-forgot a:hover { color: var(--text-2); }

/* ─── Toast ──────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: rgba(13,26,13,0.92);
  backdrop-filter: blur(12px);
  color: #fff;
  padding: 10px 20px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.10);
  font-size: 13px;
  font-weight: 500;
  opacity: 0;
  transition: opacity .2s, transform .2s;
  pointer-events: none;
  z-index: 999;
  white-space: nowrap;
  box-shadow: var(--shadow2);
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ─── Coach chat (Plan tab) ──────────────────────────────────────── */
.coach-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
/* A bare `1fr` track is really minmax(auto, 1fr) and refuses to shrink
   below its content's min-content width — which is what pushed the
   calendar off the page. minmax(0, 1fr) plus min-width:0 on the children
   lets the calendar size to the space actually available. */
.coach-layout > * { min-width: 0; }
@media (max-width: 900px) { .coach-layout { grid-template-columns: minmax(0, 1fr); } }

.coach-panel {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gb);
  border-radius: var(--r);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  height: 600px;
  max-height: 75vh;
  overflow: hidden;
}

.coach-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--gb);
  flex-shrink: 0;
}
.coach-panel-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.coach-panel-title svg { color: var(--blue); }

.coach-panel-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* "Coach is thinking…" — shown while an AI turn is in flight */
.coach-thinking {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 16px 10px;
  flex-shrink: 0;
}
.coach-thinking-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  opacity: .35;
  animation: coach-thinking-pulse 1.2s ease-in-out infinite;
}
.coach-thinking-dot:nth-child(2) { animation-delay: .15s; }
.coach-thinking-dot:nth-child(3) { animation-delay: .30s; }
.coach-thinking-label {
  margin-left: 4px;
  font-size: 11.5px;
  color: var(--text-3);
}
@keyframes coach-thinking-pulse {
  0%, 100% { opacity: .25; transform: translateY(0); }
  50%      { opacity: .95; transform: translateY(-2px); }
}
@media (prefers-reduced-motion: reduce) {
  .coach-thinking-dot { animation: none; opacity: .6; }
}

.coach-restart-btn {
  background: none;
  border: none;
  color: var(--text-3);
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
  transition: color .15s, background .15s;
}
.coach-restart-btn:hover { color: var(--text-2); background: var(--gb); }

.coach-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--gb) transparent;
}

.coach-bubble {
  max-width: 82%;
  padding: 9px 13px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.55;
}
.coach-bubble.coach {
  align-self: flex-start;
  background: var(--blue-bg);
  color: var(--text);
  border: 1px solid rgba(22,163,74,0.18);
  border-bottom-left-radius: 4px;
}
.coach-bubble.user {
  align-self: flex-end;
  background: rgba(0,0,0,0.05);
  color: var(--text);
  border: 1px solid var(--gb);
  border-bottom-right-radius: 4px;
}

.coach-quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 16px 12px;
  flex-shrink: 0;
}
.coach-quick-reply-btn {
  padding: 6px 15px;
  border-radius: 20px;
  border: 1.5px solid var(--gb);
  background: transparent;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--blue-dim);
  cursor: pointer;
  transition: background .13s, color .13s, border-color .13s;
}
.coach-quick-reply-btn:hover {
  border-color: var(--blue);
  background: var(--blue-bg);
  color: var(--blue);
}

.coach-input-row {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--gb);
  flex-shrink: 0;
}
.coach-input-row input { flex: 1; width: auto; }

.coach-cal-col .planner-header { padding-top: 0; }

/* ─── Strength session notes (strength.js cards) ──────────────────── */
.ride-card-notes {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--gb);
  font-size: 12.5px;
  color: var(--text-2);
  line-height: 1.45;
  white-space: pre-wrap;
}