/* =============================================================
   CARDIO TAB
   Card-based cardio tracker with activity-type pills,
   live pace/speed preview, weekly summary strip, and
   grouped history cards.
   ============================================================= */

/* ── Tab wrapper ────────────────────────────────────────────── */
#cardioTab {
  padding: 14px 12px 80px;
  max-width: 600px;
  margin: 0 auto;
}

/* ── Weekly summary strip ───────────────────────────────────── */
.cardio-weekly-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.cardio-stat-chip {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 10px 8px;
  text-align: center;
}

.cardio-stat-chip .chip-val {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
}

.cardio-stat-chip .chip-lbl {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 3px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* ── Form card ──────────────────────────────────────────────── */
.cardio-form-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 20px;
}

.cardio-form-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.cardio-form-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-color);
  margin: 0;
}

.cardio-form-date-chip {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--elevated-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 3px 10px;
}

/* ── Activity type pill picker ──────────────────────────────── */
.cardio-type-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 14px;
}

.cardio-type-btn {
  padding: 6px 13px;
  border-radius: 20px;
  border: 1.5px solid var(--border-color);
  background: var(--elevated-bg);
  color: var(--secondary-text);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.cardio-type-btn:active {
  transform: scale(0.95);
}

.cardio-type-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
}

/* ── Custom type input (shown when Other is selected) ───────── */
.cardio-custom-type-wrap {
  margin-bottom: 12px;
}

/* ── Section divider label ──────────────────────────────────── */
.cardio-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin: 0 0 8px;
}

/* ── Two-column rows ────────────────────────────────────────── */
.cardio-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

/* ── Field (label + input-wrap) ─────────────────────────────── */
.cardio-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.cardio-field-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.cardio-opt {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.68rem;
  opacity: 0.75;
}

/* ── Icon-wrapped input ─────────────────────────────────────── */
.cardio-input-wrap {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--elevated-bg);
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.cardio-input-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(45, 125, 91, 0.18);
}

.cardio-input-icon {
  flex-shrink: 0;
  width: 36px;
  text-align: center;
  font-size: 0.95rem;
  line-height: 1;
  color: var(--text-muted);
  pointer-events: none;
  user-select: none;
}

.cardio-input-wrap input {
  flex: 1;
  min-width: 0;
  padding: 10px 6px;
  border: none;
  background: transparent;
  color: var(--text-color);
  font-size: 1rem;          /* ≥ 16px — prevents iOS auto-zoom */
  font-family: inherit;
  -webkit-appearance: none;
}

.cardio-input-wrap input:focus { outline: none; }

.cardio-input-wrap input::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.cardio-input-unit {
  flex-shrink: 0;
  padding: 0 10px 0 2px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  pointer-events: none;
  user-select: none;
}

/* date inputs need right padding */
.cardio-input-wrap input[type="date"] {
  padding-right: 10px;
}

/* ── Intensity / effort pill row ────────────────────────────── */
.cardio-intensity-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.cardio-intensity-btn {
  flex: 1;
  min-width: 64px;
  padding: 8px 6px;
  border-radius: 10px;
  border: 1.5px solid var(--border-color);
  background: var(--elevated-bg);
  color: var(--secondary-text);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.cardio-intensity-btn:active { transform: scale(0.96); }

.cardio-intensity-btn[data-intensity="easy"].active    { background: rgba(82,214,138,0.15);  border-color: #52d68a; color: #52d68a; }
.cardio-intensity-btn[data-intensity="moderate"].active{ background: rgba(45,125,91,0.15);   border-color: var(--primary); color: var(--primary); }
.cardio-intensity-btn[data-intensity="hard"].active    { background: rgba(240,160,64,0.15);  border-color: #f0a040; color: #f0a040; }
.cardio-intensity-btn[data-intensity="max"].active     { background: rgba(224,80,80,0.15);   border-color: #e05050; color: #e05050; }

/* ── "More options" collapsible ─────────────────────────────── */
.cardio-optional {
  margin-bottom: 14px;
}

.cardio-optional-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--elevated-bg);
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.12s;
}

.cardio-optional-toggle::-webkit-details-marker { display: none; }
.cardio-optional[open] .cardio-optional-toggle  { border-radius: 10px 10px 0 0; border-bottom-color: transparent; }
.cardio-optional-toggle:active { background: rgba(45,125,91,0.08); }

.cardio-optional-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--secondary-text);
}

.cardio-optional-arrow {
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: transform 0.2s;
  line-height: 1;
}

.cardio-optional[open] .cardio-optional-arrow { transform: rotate(90deg); }

.cardio-optional-body {
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 10px 10px;
  padding: 12px 12px 4px;
  background: var(--elevated-bg);
}

/* ── Live pace / speed preview ──────────────────────────────── */
.cardio-pace-preview {
  background: rgba(45,125,91,0.07);
  border: 1px solid rgba(45,125,91,0.3);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--primary);
  animation: cardio-fadein 0.2s ease;
}

@keyframes cardio-fadein {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.cardio-pace-preview .pace-icon { font-size: 1.05rem; }

.cardio-pace-preview .pace-value {
  font-weight: 700;
  font-size: 0.95rem;
}

/* ── Submit button ──────────────────────────────────────────── */
.cardio-submit-btn {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  letter-spacing: 0.02em;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  box-shadow: 0 2px 8px rgba(45,125,91,0.25);
  -webkit-tap-highlight-color: transparent;
}

.cardio-submit-btn:active {
  background: var(--primary-dark);
  transform: scale(0.98);
  box-shadow: none;
}

/* ── History section ────────────────────────────────────────── */
.cardio-history-section-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--secondary-text);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.cardio-history-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 32px 16px;
  background: var(--card-bg);
  border: 1px dashed var(--border-color);
  border-radius: 14px;
}

/* ── Day group ──────────────────────────────────────────────── */
.cardio-day-group {
  margin-bottom: 18px;
}

.cardio-day-header {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 4px 4px 8px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 10px;
}

/* ── Individual entry card ──────────────────────────────────── */
.cardio-entry-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--c-accent, var(--primary));
  border-radius: 12px;
  padding: 12px 12px 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
  position: relative;
}

.cardio-entry-icon {
  font-size: 1.6rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.cardio-entry-info {
  flex: 1;
  min-width: 0;
}

.cardio-entry-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 6px;
  text-transform: capitalize;
}

.cardio-entry-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.cardio-stat-tag {
  background: var(--elevated-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 3px 8px;
  font-size: 0.78rem;
  color: var(--secondary-text);
  white-space: nowrap;
}

.cardio-stat-tag.highlight {
  color: var(--primary);
  border-color: rgba(45, 125, 91, 0.4);
  background: rgba(45, 125, 91, 0.08);
}

.cardio-entry-notes {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
  font-style: italic;
}

.cardio-remove-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  opacity: 0.45;
  padding: 4px;
  border-radius: 6px;
  color: var(--danger);
  transition: opacity 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.cardio-remove-btn:hover,
.cardio-remove-btn:active {
  opacity: 1;
}

/* ── Responsive: narrow screens ────────────────────────────── */
@media (max-width: 360px) {
  .cardio-weekly-strip { grid-template-columns: repeat(2, 1fr); }
  .cardio-row-2        { grid-template-columns: 1fr; }
  .cardio-intensity-btn { font-size: 0.72rem; padding: 7px 4px; }
}