/* TDEE Calculator — design aligned with cmrabdu.com */

/* ---- Reset body alignment from main style.css ---- */
.layout,
.layout * {
  text-align: left;
}

.calc-intro {
  max-width: 600px;
  margin: 0 auto 30px;
  color: #666;
  font-size: 14px;
  line-height: 1.6;
  text-align: center;
}

/* ---- Two-column layout ---- */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
  gap: 20px;
  padding: 0 20px 40px;
  max-width: 1100px;
  margin: 0 auto;
  align-items: start;
}

/* ---- Panels ---- */
.panel {
  background-color: #f0f0f0;
  padding: 20px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  border-bottom: 1px solid #ccc;
  padding-bottom: 15px;
}

.panel-head h2 {
  margin: 0;
  font-size: 20px;
  color: #1a1a1a;
}

.panel-head > p {
  margin: 0;
  font-size: 13px;
  color: #666;
  line-height: 1.5;
}

.section-kicker {
  display: block;
  margin: 0 0 4px;
  font-family: monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #999;
}

/* ---- Groups ---- */
.group + .group {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #ccc;
}

.group-title {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #333;
}

/* ---- Field groups ---- */
.field-group {
  margin: 0 0 14px;
  padding: 0;
  border: 0;
}

.field-group:last-child {
  margin-bottom: 0;
}

legend,
.field-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-bottom: 8px;
  padding: 0;
  font-size: 13px;
  font-weight: 600;
  color: #333;
}

/* Value badge */
.field-val {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border: 1px solid #ccc;
  background: white;
  color: darkblue;
  font-family: monospace;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}

/* ---- Toggle buttons ---- */
.toggle-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 6px;
}

.toggle-btn {
  appearance: none;
  padding: 7px 10px;
  border: 1px solid #999;
  background: white;
  color: #333;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.1s ease, color 0.1s ease;
  font-family: inherit;
}

.toggle-btn:hover {
  border-color: darkblue;
  color: darkblue;
}

.toggle-btn.active {
  border-color: darkblue;
  background: white;
  color: darkblue;
  text-decoration: underline;
}

/* ---- Range sliders ---- */
input[type="range"] {
  appearance: none;
  width: 100%;
  height: 5px;
  border-radius: 0;
  background: linear-gradient(
    90deg,
    darkblue 0%,
    darkblue var(--fill, 0%),
    #ccc var(--fill, 0%),
    #ccc 100%
  );
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  border: 2px solid white;
  border-radius: 50%;
  background: darkblue;
  box-shadow: 0 1px 3px rgba(0, 0, 80, 0.25);
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 2px solid white;
  border-radius: 50%;
  background: darkblue;
  box-shadow: 0 1px 3px rgba(0, 0, 80, 0.25);
  cursor: pointer;
}

input[type="range"]::-moz-range-track {
  height: 5px;
  background: transparent;
}

.toggle-btn:focus-visible,
input[type="range"]:focus-visible,
.formula-card:focus-visible,
.formula-guide summary:focus-visible {
  outline: 2px solid darkblue;
  outline-offset: 2px;
}

.range-hints {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  color: #999;
  font-family: monospace;
  font-size: 10px;
}

/* ---- Goal help text ---- */
.goal-help {
  margin: 10px 0 0;
  padding: 10px 12px;
  border: 1px dashed #bbb;
  background: white;
  color: #666;
  font-size: 13px;
  line-height: 1.5;
}

/* ---- Result blocks ---- */
.result-block + .result-block {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #ccc;
}

.result-block-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.block-label {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: #1a1a1a;
}

.block-copy {
  margin: 3px 0 0;
  color: #666;
  font-size: 13px;
  line-height: 1.5;
}

.block-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border: 1px solid #ccc;
  background: white;
  color: #666;
  font-family: monospace;
  font-size: 10px;
  white-space: nowrap;
}

/* ---- Formula cards (BMR / TDEE display) ---- */
.formula-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
}

.formula-card {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  background: white;
  color: #333;
  text-align: left;
  transition: border-color 0.1s ease;
}

button.formula-card {
  cursor: pointer;
  font-family: inherit;
}

button.formula-card:hover {
  border-color: darkblue;
}

.formula-card.selected {
  border-color: darkblue;
  background: white;
}

.fc-name,
.gc-label {
  margin: 0 0 6px;
  color: #999;
  font-family: monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.formula-card.selected .fc-name {
  color: darkblue;
}

.fc-val,
.gc-val {
  margin: 0;
  font-family: monospace;
  font-size: 22px;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.2;
}

.formula-card.selected .fc-val {
  color: darkblue;
}

.fc-unit {
  color: #666;
  font-size: 12px;
  font-weight: 400;
}

.fc-meta,
.gc-help {
  display: block;
  margin-top: 4px;
  color: #666;
  font-size: 12px;
  line-height: 1.3;
}

/* ---- Breakdown bar ---- */
.breakdown-bar {
  display: flex;
  gap: 3px;
  height: 10px;
  margin-bottom: 12px;
}

.bar-seg {
  height: 100%;
  border-radius: 0;
}

.breakdown-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-bottom: 12px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #666;
  font-size: 12px;
}

.legend-dot,
.bd-dot {
  flex-shrink: 0;
  border-radius: 0;
}

.legend-dot {
  width: 10px;
  height: 10px;
}

.breakdown-rows {
  display: grid;
  gap: 8px;
}

.bd-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
  padding-bottom: 8px;
  border-bottom: 1px dotted #ccc;
}

.bd-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.bd-label {
  display: flex;
  gap: 7px;
  color: #666;
  font-size: 13px;
  line-height: 1.5;
}

.bd-dot {
  width: 10px;
  height: 10px;
  margin-top: 3px;
}

.bd-val {
  font-family: monospace;
  font-size: 13px;
  color: #333;
  white-space: nowrap;
}

.bd-pct {
  margin-left: 4px;
  color: #999;
}

/* ---- Goal grid ---- */
.goal-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  gap: 8px;
}

.goal-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px;
  border: 1px solid #ccc;
  background: white;
}

.goal-card.highlight {
  border-color: darkblue;
}

.goal-card.caution {
  border-color: #b36200;
  background: #fff7ee;
}

.goal-card.success {
  border-color: #2a6a2a;
  background: #f0f7f0;
}

.gc-val {
  font-size: 18px;
}

/* ---- Weekly note ---- */
.weekly-note {
  margin-top: 12px;
  padding: 12px;
  border: 1px solid #ccc;
  background: white;
  color: #666;
  font-size: 13px;
  line-height: 1.7;
}

.weekly-note strong {
  color: #333;
}

.note-alert {
  color: #cc3300;
  font-weight: 600;
}

/* ---- Expandable guide ---- */
.formula-guide {
  margin-top: 20px;
  border: 1px solid #ccc;
  background: white;
}

.formula-guide summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  color: #333;
}

.formula-guide summary::-webkit-details-marker {
  display: none;
}

.formula-guide summary::after {
  content: "+";
  color: #999;
  font-family: monospace;
  font-size: 16px;
}

.formula-guide[open] summary::after {
  content: "−";
}

.guide-content {
  display: grid;
  gap: 10px;
  padding: 0 12px 12px;
  border-top: 1px solid #ccc;
}

.guide-content p {
  margin: 0;
  color: #666;
  font-size: 13px;
  line-height: 1.6;
}

.guide-content strong {
  color: #333;
}

/* ---- Source note ---- */
.source-note {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 10px;
  text-align: center;
}

.source-note p {
  margin: 0;
  color: #bbb;
  font-size: 12px;
}

.source-note a {
  color: #999;
  text-decoration: underline;
}

.source-note a:hover {
  color: #666;
}

/* ---- Responsive ---- */
@media (min-width: 980px) {
  .inputs-panel {
    position: sticky;
    top: 20px;
  }
}

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .goal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .layout {
    padding: 0 10px 30px;
    gap: 12px;
  }

  .panel {
    padding: 15px;
  }

  .formula-cards,
  .goal-grid {
    grid-template-columns: 1fr;
  }

  .fc-val {
    font-size: 18px;
  }

  .gc-val {
    font-size: 16px;
  }

  .bd-row {
    flex-direction: column;
  }

  .bd-val {
    white-space: normal;
  }
}