/* ─────────────────────────────────────────────────────────────────────────────
   weight.css — Thanzi Weight Panel
   Uses the same CSS var tokens as the rest of Thanzi (style.css)
   ───────────────────────────────────────────────────────────────────────────── */

/* ── Panel ───────────────────────────────────────────────────────────────── */
#weight-panel {
  padding: 20px 16px 96px;
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.wt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.wt-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -.3px;
}

.wt-subtitle {
  font-size: .8rem;
  color: var(--text-3);
  margin-top: 3px;
}

/* ── Summary banner ──────────────────────────────────────────────────────── */
.wt-summary-banner {
  display: flex;
  align-items: stretch;
  justify-content: space-around;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-active, #1a7a52) 100%);
  border-radius: 18px;
  padding: 18px 12px;
  margin-bottom: 20px;
  gap: 4px;
}

.wt-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.wt-stat + .wt-stat {
  border-left: 1px solid rgba(255,255,255,.2);
}

.wt-stat-label {
  font-size: .7rem;
  color: rgba(255,255,255,.8);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 4px;
}

.wt-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.wt-stat-unit {
  font-size: .7rem;
  color: rgba(255,255,255,.75);
  margin-top: 2px;
}

.wt-stat-badge {
  font-size: .68rem;
  font-weight: 600;
  color: rgba(255,255,255,.9);
  background: rgba(255,255,255,.18);
  border-radius: 20px;
  padding: 2px 8px;
  margin-top: 4px;
}

/* ── Stat cards grid (Current Weight, BMI, Total Change, Change %) ────────── */
.wt-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.wt-card {
  background: var(--surface-2);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.wt-card-label {
  font-size: .72rem;
  color: var(--text-3);
  font-weight: 500;
}

.wt-card-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.1;
}

.wt-card-sub {
  font-size: .72rem;
  color: var(--text-3);
}

.wt-card-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: flex-end;
  margin-top: -34px; /* float to top-right */
  margin-left: auto;
}

.wt-card-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent);
}

/* ── Progress chart card ────────────────────────────────────────────────── */
.wt-chart-card {
  background: var(--surface-2);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
}

.wt-chart-title {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 12px;
}

.wt-chart-wrap {
  position: relative;
  height: 160px;
}

.wt-chart-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 140px;
  color: var(--text-3);
  font-size: .85rem;
  text-align: center;
  flex-direction: column;
  gap: 8px;
}

.wt-chart-empty svg {
  width: 36px;
  height: 36px;
  stroke: var(--text-3);
  opacity: .4;
}

/* ── Log weight card ────────────────────────────────────────────────────── */
.wt-log-card {
  background: var(--surface-2);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
}

.wt-log-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 14px;
}

.wt-field {
  margin-bottom: 12px;
}

.wt-field-label {
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: .4px;
  margin-bottom: 6px;
  display: block;
}

.wt-field input[type="number"],
.wt-field select {
  width: 100%;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: var(--surface-1);
  color: var(--text-1);
  font-size: .95rem;
  outline: none;
  box-sizing: border-box;
  transition: border-color .15s;
  appearance: none;
}

.wt-field input[type="number"]:focus,
.wt-field select:focus {
  border-color: var(--accent);
}

.wt-date-wrap {
  position: relative;
}

.wt-date-wrap select { padding-right: 36px; cursor: pointer; }

.wt-date-wrap::after {
  content: '';
  position: absolute;
  right: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--text-3);
  pointer-events: none;
}

#wt-add-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 100%;
  padding: 12px;
  border-radius: 50px;
  border: none;
  background: var(--accent);
  color: var(--on-accent);
  font-size: .93rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, transform .1s, opacity .15s;
}

#wt-add-btn:active   { transform: scale(0.97); }
#wt-add-btn:disabled { opacity: .55; cursor: not-allowed; }
#wt-add-btn svg { width: 17px; height: 17px; stroke: var(--on-accent); flex-shrink: 0; }

/* ── Weight history card ─────────────────────────────────────────────────── */
.wt-history-card {
  background: var(--surface-2);
  border-radius: 14px;
  padding: 16px;
}

.wt-history-title {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 12px;
}

.wt-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px 0 8px;
  color: var(--text-3);
}

.wt-empty svg {
  width: 38px;
  height: 38px;
  stroke: var(--text-3);
  opacity: .4;
}

.wt-empty-text  { font-size: .85rem; }
.wt-empty-sub   { font-size: .78rem; color: var(--text-3); text-align: center; }

/* ── History row ─────────────────────────────────────────────────────────── */
.wt-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
}

.wt-row:last-child { border-bottom: none; }

.wt-row-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.wt-row-icon svg { width: 18px; height: 18px; stroke: var(--accent); }

.wt-row-info { flex: 1; min-width: 0; }

.wt-row-weight {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text-1);
}

.wt-row-date {
  font-size: .75rem;
  color: var(--text-3);
  margin-top: 1px;
}

.wt-row-delta {
  font-size: .82rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.wt-row-delta.up   { color: #e05; }
.wt-row-delta.down { color: var(--accent); }
.wt-row-delta.same { color: var(--text-3); }

.wt-row-delete {
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  color: var(--text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: color .15s, background .15s;
  flex-shrink: 0;
}

.wt-row-delete:hover { color: #e05; background: color-mix(in srgb, #e05 10%, transparent); }
.wt-row-delete svg { width: 16px; height: 16px; stroke: currentColor; }

/* ── Error ───────────────────────────────────────────────────────────────── */
#wt-error {
  font-size: .8rem;
  color: #e05;
  min-height: 18px;
  margin: 6px 0 0;
  display: none;
}

#wt-error.visible { display: block; }