/* Shared layouts for the tools directory and individual calculators. */
.tools-page [hidden] { display: none !important; }
.tools-page .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.tools-hero {
  padding: 28px 0 64px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(120deg, #fff, #f0f7eb);
}
.tools-hero .breadcrumb { margin-bottom: 38px; }
.tools-hero h1 {
  max-width: 850px;
  margin-bottom: 22px;
  font-size: clamp(2.25rem, 4.5vw, 3.7rem);
  letter-spacing: -0.04em;
}
.tools-hero h1 span { color: var(--primary); }
.tools-hero .eyebrow { margin-bottom: 16px; }
.tools-intro { max-width: 740px; font-size: 1.06rem; }
.tools-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  align-items: center;
  gap: 60px;
}
.tools-feature {
  padding: 30px;
  border: 1px solid #ccdfc4;
  border-radius: var(--radius-lg);
  background: white;
  box-shadow: var(--shadow-sm);
}
.tools-feature h2 { font-size: 1.55rem; letter-spacing: -0.5px; }
.tools-feature-image { display: block; width: 100%; height: 170px; object-fit: cover; border-radius: 14px; margin-bottom: 22px; }
.tools-feature p { font-size: 0.92rem; }
.tools-feature .btn { width: 100%; }
.tools-feature-top { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.catalog-icon {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  flex-shrink: 0;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 800;
}
.catalog-icon svg { width: 26px; height: 26px; }
.tool-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--surface-soft);
  color: var(--text-light);
  font-size: 0.72rem;
  font-weight: 700;
}
.tool-status.available { background: var(--accent-soft); color: var(--primary-dark); }
.tools-principles {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
  font-size: 0.83rem;
  color: var(--heading);
}
.tools-principles li::before { content: "✓"; margin-right: 8px; color: var(--primary); }
.tool-directory { padding: 55px 0 70px; }
.tools-jump-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 42px;
}
.tools-jump-links a {
  padding: 10px 17px;
  border: 1px solid var(--border);
  border-radius: 30px;
  background: white;
  color: var(--heading);
  font-size: 0.86rem;
  font-weight: 600;
}
.tools-jump-links a:hover { border-color: var(--primary); background: var(--accent-soft); }
.catalog-group + .catalog-group { margin-top: 48px; }
.catalog-group h2 { font-size: 1.6rem; letter-spacing: -0.5px; margin-bottom: 10px; }
.catalog-group > p { margin-bottom: 24px; font-size: 0.93rem; }
.catalog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.catalog-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 250px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: white;
}
.catalog-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 24px; }
.catalog-card h3 { font-size: 1.12rem; margin-bottom: 12px; }
.catalog-card p { font-size: 0.9rem; }
.catalog-card .card-link { margin-top: auto; padding-top: 8px; }
a.catalog-card { border-color: #b9d4ad; box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition); }
a.catalog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.tools-note { padding: 28px; margin-top: 46px; border-radius: var(--radius-md); background: var(--accent-soft); }
.tools-note h2 { font-size: 1.3rem; letter-spacing: 0; }
.tools-note p { margin-bottom: 0; font-size: 0.92rem; }
.tools-page .inline-link, .tool-copy a { color: var(--primary-dark); text-decoration: underline; text-underline-offset: 3px; }
.tools-page .inline-link:hover, .tool-copy a:hover { color: var(--primary); }
.tool-meta { display: flex; flex-wrap: wrap; gap: 8px 24px; color: var(--text-light); font-size: 0.8rem; }
.calculator-section { padding: 48px 0 60px; }
.calc-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: white;
  box-shadow: var(--shadow-sm);
}
.calc-form-panel, .calc-result-panel { min-width: 0; padding: 36px; }
.calc-workspace h2 { font-size: 1.5rem; letter-spacing: -0.5px; }
.calc-form-panel > p { font-size: 0.92rem; }
.calc-form-panel fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.calc-field { margin-bottom: 24px; }
.calc-field label, .calc-units legend { display: block; margin-bottom: 8px; color: var(--heading); font-weight: 700; font-size: 0.88rem; }
.calc-field input, .calc-field select {
  width: 100%;
  min-width: 0;
  min-height: 50px;
  padding: 12px 14px;
  border: 1px solid #6b806c;
  border-radius: 10px;
  background: white;
  color: var(--text);
}
.calc-field input:focus-visible, .calc-field select:focus-visible, .calc-units input:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
}
.calc-field [aria-invalid="true"] { border-color: #a12822; }
.calc-help { display: block; margin: 8px 0 0; color: var(--text-light); font-size: 0.79rem; }
.calc-error { margin: 7px 0 0; color: #a12822; font-size: 0.83rem; font-weight: 600; }
.calc-error:empty { display: none; }
.calc-form-panel .calc-units { margin-bottom: 24px; }
.calc-unit-options { display: flex; flex-wrap: wrap; gap: 12px; }
.calc-unit-options label {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.86rem;
}
.calc-unit-options label:has(input:checked) { background: var(--accent-soft); border-color: var(--primary); }
.calc-unit-options input { margin: 0; width: 18px; height: 18px; accent-color: var(--primary); }
.calc-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.calc-actions .btn-primary { flex-grow: 1; }
.calc-actions button:disabled { cursor: default; opacity: 0.6; }
.calc-privacy { padding-top: 20px; margin: 20px 0 0; border-top: 1px solid var(--border); font-size: 0.78rem; }
.calc-result-panel {
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  background: linear-gradient(140deg, #0f3d2e, #1d583a);
  color: white;
  position: relative;
  overflow: hidden;
}

.calc-result-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(167, 213, 109, 0.18), transparent 38%);
  pointer-events: none;
}

.calc-result-panel > * {
  position: relative;
  z-index: 1;
}
.calc-result-panel h2 { color: white; }
.calc-result-panel p { color: #d9e8dc; }
.calc-result-panel .eyebrow { color: #b7df8a; font-size: 0.67rem; }
.calc-result-panel a { color: white; text-decoration: underline; text-underline-offset: 3px; }
.calc-result-panel a:focus-visible { outline-color: var(--primary-light); }
.calc-result-empty {
  display: grid;
  place-content: center;
  min-height: 400px;
  padding: 26px;
  border: 1px solid rgba(183, 223, 138, 0.2);
  border-radius: 18px;
  background: rgba(17, 38, 31, 0.2);
  text-align: center;
}

.calc-result-empty .catalog-icon,
.calc-result-empty .result-icon {
  display: grid;
  place-items: center;
  width: 76px;
  height: 76px;
  margin: 0 auto 20px;
  border-radius: 20px;
  background: rgba(167, 213, 109, 0.16);
  color: #dff4b3;
  box-shadow: inset 0 0 0 1px rgba(183, 223, 138, 0.35);
  font-size: 1.2rem;
  font-weight: 800;
}

.calc-result-empty p {
  max-width: 300px;
  margin-inline: auto;
  color: #dcefe1;
}

.calc-result-empty h2 {
  margin-bottom: 10px;
}

.calc-result-visual {
  display: grid;
  place-items: center;
  width: 88px;
  height: 88px;
  margin: 0 auto 18px;
  border: 1px solid rgba(183, 223, 138, 0.35);
  border-radius: 50%;
  background: rgba(167, 213, 109, 0.13);
  color: #dff4b3;
  box-shadow: 0 0 0 10px rgba(167, 213, 109, 0.045), inset 0 0 0 6px rgba(15, 61, 46, 0.2);
}

.calc-result-visual svg {
  width: 42px;
  height: 42px;
}

#bmi-result-values .calc-result-visual,
#bmi-result .calc-result-visual {
  margin-inline: 0;
  width: 68px;
  height: 68px;
}

.bmi-range-gauge {
  position: relative;
  width: min(100%, 280px);
  height: 92px;
  margin: 26px auto 0;
  overflow: hidden;
  border-radius: 150px 150px 0 0;
  background: conic-gradient(from 270deg at 50% 100%, #72a84c 0 25%, #b7df8a 25% 46%, #e7bf62 46% 68%, #d46a5d 68% 100%);
  box-shadow: inset 0 0 0 8px rgba(15, 61, 46, 0.26);
}

.bmi-range-gauge::after {
  content: "";
  position: absolute;
  inset: 22px 22px 0;
  border-radius: 120px 120px 0 0;
  background: #164632;
}

.bmi-range-needle {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 5px;
  width: 3px;
  height: 70px;
  transform-origin: 50% 100%;
  transform: translateX(-50%) rotate(var(--bmi-angle, 0deg));
  border-radius: 3px;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(15, 61, 46, 0.25);
}

.bmi-range-label {
  position: absolute;
  z-index: 3;
  bottom: 8px;
  color: #e7f3d6;
  font-size: .68rem;
  font-weight: 700;
}

.bmi-range-low { left: 20px; }
.bmi-range-high { right: 20px; }

.calc-result-visual-macro-calculator,
.calc-result-visual-body-fat-calculator,
.calc-result-visual-waist-to-height-ratio-calculator {
  border-radius: 18px;
}

.calc-result-visual-water-intake-calculator svg { color: #b8e9ec; }
.calc-result-visual-target-heart-rate-calculator svg { color: #ffb3a9; }
.calc-result-visual-sleep-calculator svg { color: #d9c9ff; }

@keyframes resultVisualIn {
  from { opacity: 0; transform: translateY(8px) scale(.94); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.calc-result-panel.is-calculated .calc-result-visual,
.calc-result-panel.is-calculated .bmi-range-gauge {
  animation: resultVisualIn .35s ease-out both;
}

.result-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(183, 223, 138, 0.2);
}

.result-list div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid rgba(183, 223, 138, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.result-list span {
  color: #d9e8dc;
  font-size: 0.81rem;
}

.result-list strong {
  color: white;
  font-size: 1.15rem;
  text-align: right;
}

.calc-result-panel .calc-result-caution,
.calc-result-panel .calc-result-sub {
  margin-top: 18px;
  font-size: 0.8rem;
  color: #dfeee2;
}

.calc-result-panel .calc-range-card {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(183, 223, 138, 0.15);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.035);
}

.calc-result-panel .calc-range-card span,
.calc-result-panel .calc-range-card small {
  display: block;
  color: #d9e8dc;
}

.calc-result-panel .calc-range-card strong {
  display: block;
  margin: 8px 0 4px;
  color: white;
  font-size: 1.35rem;
}
.calc-result-label { font-size: 0.9rem; margin-bottom: 4px; }
.calc-result-value { display: block; font-family: "Poppins", sans-serif; font-size: clamp(2.6rem, 5vw, 3.8rem); line-height: 1.2; letter-spacing: -1px; }
.calc-result-caption { font-size: 0.83rem; margin-top: 12px; }
.calc-breakdown { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; padding: 24px 0; margin: 24px 0; border-block: 1px solid #61816c; }
.calc-breakdown dt { color: #d9e8dc; font-size: 0.78rem; }
.calc-breakdown dd { margin: 6px 0 0; font-weight: 700; font-size: 1.2rem; }
.calc-serving { padding: 18px; border-radius: 14px; background: #f1f7ed; }
.calc-serving strong { display: block; color: var(--primary-dark); font-size: 1.25rem; }
.calc-result-panel .calc-serving p { color: var(--text-light); font-size: 0.8rem; margin: 6px 0 0; }
.calc-result-caution { margin-top: 22px; font-size: 0.8rem; }
.calc-disclaimer { margin: 20px 0 0; font-size: 0.85rem; }
.tool-reading-layout { display: grid; grid-template-columns: 230px minmax(0, 800px); justify-content: space-between; gap: 50px; padding-bottom: 70px; }
.tool-toc { align-self: start; padding: 24px; border: 1px solid var(--border); border-radius: 16px; background: white; }
.tool-toc h2 { font-size: 0.95rem; letter-spacing: 0; }
.tool-toc a { display: block; padding: 7px 0; font-size: 0.84rem; color: var(--primary-dark); }
.tool-toc a:hover { text-decoration: underline; }
.tool-copy { min-width: 0; }
.tool-copy section + section { margin-top: 48px; padding-top: 36px; border-top: 1px solid var(--border); }
.tool-copy h2 { font-size: 1.75rem; letter-spacing: -0.5px; }
.tool-copy h3 { font-size: 1.15rem; }
.tool-copy p, .tool-copy li { font-size: 0.96rem; }
.tool-copy li + li { margin-top: 9px; }
.tool-copy ul, .tool-copy ol { padding-left: 23px; color: var(--text-light); }
.reference-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.88rem; background: white; }
.reference-table caption { text-align: left; color: var(--heading); font-weight: 700; margin-bottom: 12px; }
.reference-table th, .reference-table td { padding: 13px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.reference-table thead { background: var(--accent-soft); color: var(--heading); }
.reference-table tbody th { font-weight: 600; }
.formula-box { padding: 22px; margin: 24px 0; background: var(--accent-soft); border-left: 3px solid var(--primary); border-radius: 0 12px 12px 0; }
.formula-box p:last-child { margin-bottom: 0; }
.tool-related { display: grid; gap: 12px; }
.tool-related a { padding: 16px 20px; border: 1px solid var(--border); border-radius: 12px; background: white; text-decoration: none; }
.tool-related a:hover { border-color: var(--primary); }
.tool-related strong { display: block; font-size: 0.92rem; }
.tool-related span { display: block; color: var(--text-light); font-size: 0.8rem; margin-top: 4px; }
.tool-faq { border: 1px solid var(--border); border-radius: 12px; background: white; margin-bottom: 12px; }
.tool-faq summary { padding: 18px 20px; cursor: pointer; color: var(--heading); font-weight: 600; }
.tool-faq p { padding: 0 20px 18px; margin: 0; }
.reference-list a { overflow-wrap: anywhere; }
@media (max-width: 1100px) {
  .tools-hero-grid { gap: 30px; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); }
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tool-reading-layout { grid-template-columns: 190px minmax(0, 1fr); gap: 32px; }
  .calc-form-panel, .calc-result-panel { padding: 28px; }
}
@media (max-width: 850px) {
  .tools-hero-grid { grid-template-columns: minmax(0, 1fr); }
  .tools-feature { max-width: 540px; }
  .calc-workspace, .tool-reading-layout { grid-template-columns: minmax(0, 1fr); }
  .calc-result-panel { border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
  .calc-result-empty { min-height: 260px; }
  .tool-toc { display: flex; flex-wrap: wrap; gap: 6px 22px; }
  .tool-toc h2 { width: 100%; margin-bottom: 8px; }
}
@media (max-width: 560px) {
  .tools-hero { padding-bottom: 40px; }
  .tools-hero h1 { font-size: 2.2rem; }
  .tools-intro { font-size: 1rem; }
  .catalog-grid { grid-template-columns: minmax(0, 1fr); }
  .tools-feature, .catalog-card, .tools-note { padding: 24px; }
  .tools-jump-links { gap: 8px; }
  .tools-jump-links a { padding: 9px 12px; font-size: 0.8rem; }
  .calculator-section { padding-top: 28px; }
  .calc-form-panel, .calc-result-panel { padding: 24px 18px; }
  .calc-actions { flex-direction: column; }
  .calc-unit-options { gap: 8px; }
  .calc-unit-options label { padding: 10px; font-size: 0.8rem; }
  .calc-breakdown { gap: 12px; }
  .reference-table { font-size: 0.78rem; }
  .reference-table th, .reference-table td { padding: 10px 7px; }
  .calc-result-visual { width: 72px; height: 72px; }
  .calc-result-visual svg { width: 34px; height: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  .calc-result-panel.is-calculated .calc-result-visual,
  .calc-result-panel.is-calculated .bmi-range-gauge { animation: none; }
}

/* Shared refinements for multi-field calculators. */
.calc-field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.imperial-height-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.imperial-height-fields[hidden] { display: none !important; }
.metric-height-field[hidden] { display: none !important; }
.calc-range-card {
  padding: 18px;
  margin-top: 24px;
  border-radius: 14px;
  background: #f1f7ed;
  color: var(--primary-dark);
}
.calc-range-card span,
.calc-range-card small { display: block; }
.calc-range-card span { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.calc-range-card strong { display: block; margin: 5px 0 3px; font-size: 1.3rem; }
.calc-range-card small { color: var(--text-light); }
.result-icon { margin: 0 auto 20px; }
@media (max-width: 560px) {
  .calc-field-grid,
  .imperial-height-fields { grid-template-columns: minmax(0, 1fr); gap: 0; }
}


/* Generic controls shared by newer calculators. */
.calc-grid-2 { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; }
.calc-grid-3 { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.calc-result-panel .calc-result-value { font-size:clamp(2rem,5vw,3.4rem); line-height:1.2; color:#fff; margin:8px 0; overflow-wrap:anywhere; }
.calc-result-sub { color:var(--text-light); font-size:.9rem; }
.result-list { display:grid; gap:12px; margin-top:20px; }
.result-list > div { padding:15px 16px; border:1px solid var(--border); border-radius:12px; background:#fbfdf9; }
.result-list span { display:block; color:var(--text-light); font-size:.78rem; }
.result-list strong { color:var(--heading); font-size:1.05rem; }
.calc-inline-note { padding:14px 16px; border-radius:12px; background:var(--accent-soft); color:var(--primary-dark); font-size:.83rem; }
.calc-result-panel [tabindex="-1"]:focus { outline:none; }
@media(max-width:700px){.calc-grid-2,.calc-grid-3{grid-template-columns:1fr}}