/* ============================================
   SportyCalc - Strava-inspired Design System
   Light mode default, dark mode via data-theme
   ============================================ */

:root {
  /* Primary Accent */
  --primary: #F95700;
  --primary-hover: #E04F00;
  --primary-focus: rgba(249, 87, 0, 0.25);
  --secondary: #2563EB;

  /* Light Mode (default) */
  --bg: #FFFFFF;
  --bg-card: #F7F7F7;
  --bg-elevated: #EEEEEE;
  --border: #E5E5E5;
  --text-primary: #222222;
  --text-secondary: #525252;
  --text-muted: #737373;

  /* Surfaces */
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --nav-bg: rgba(255, 255, 255, 0.95);
  --nav-bg-scroll: rgba(255, 255, 255, 0.98);

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-card: 12px;
  --radius-btn: 8px;
  --section-gap: 32px;
  --transition: 200ms ease;
}

[data-theme="dark"] {
  --bg: #111111;
  --bg-card: #1F1F1F;
  --bg-elevated: #2A2A2A;
  --border: #2A2A2A;
  --text-primary: #FFFFFF;
  --text-secondary: #A1A1AA;
  --text-muted: #71717A;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
  --nav-bg: rgba(17, 17, 17, 0.95);
  --nav-bg-scroll: rgba(17, 17, 17, 0.98);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  font-weight: 400;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===================== Layout ===================== */
.wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===================== Navigation ===================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.nav.nav-scrolled {
  background: var(--nav-bg-scroll);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
}

.nav-logo-text {
  font-size: 1.25rem;
  font-weight: 600;
  font-family: var(--font);
  color: var(--primary);
  letter-spacing: -0.01em;
}

.nav-logo-img {
  height: 32px;
  width: auto;
  display: block;
  object-fit: contain;
}

.nav-links {
  display: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 400;
  font-size: 0.9375rem;
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link.active {
  color: var(--text-primary);
  font-weight: 600;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 768px) {
  .nav-toggle { display: none; }
}

.mobile-nav {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  padding: 2rem;
  transform: translateX(100%);
  transition: transform 350ms ease;
  z-index: 99;
  overflow-y: auto;
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav-link {
  display: block;
  padding: 1rem 0;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 400;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}

.mobile-nav-link:hover {
  color: var(--primary);
}

/* ===================== Hero ===================== */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Primary CTA - Orange */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  background: var(--primary);
  color: white;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary Ghost */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid var(--border);
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}

.btn-ghost:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

/* ===================== Featured Calculators (Home) ===================== */
.featured-section {
  padding: var(--section-gap) 0 64px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.featured-card {
  display: block;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(249, 87, 0, 0.2);
}

.featured-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.featured-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===================== Footer ===================== */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--section-gap) 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ===================== 404 Page ===================== */
.error-page {
  padding: 120px 0;
  text-align: center;
}

.error-page h1 {
  font-size: 4rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.error-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.error-desc {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* ===================== Contact Page ===================== */
.contact-section {
  padding-bottom: var(--section-gap);
}

.contact-form-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 2rem;
}

.contact-form-card textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font);
  resize: vertical;
  min-height: 120px;
  transition: border-color var(--transition);
}

.contact-form-card textarea:focus {
  outline: none;
  border-color: var(--text-secondary);
}

.contact-form-card textarea::placeholder {
  color: var(--text-muted);
}

/* ===================== Calculator Page ===================== */
.calculator-page .hero {
  padding: 48px 0 32px;
  text-align: left;
}

.calculator-page .hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.calculator-layout {
  display: grid;
  gap: var(--section-gap);
  padding-bottom: var(--section-gap);
}

@media (min-width: 992px) {
  .calculator-layout {
    grid-template-columns: 1fr 360px;
    align-items: start;
  }
}

.calc-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 1.5rem;
  margin-bottom: var(--section-gap);
}

.calc-form-card h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.input-group {
  margin-bottom: 1rem;
}

.input-group:last-of-type {
  margin-bottom: 0;
}

.input-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font);
  transition: border-color var(--transition);
}

.input-group input:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--text-secondary);
}

.input-group input::placeholder {
  color: var(--text-muted);
}

.input-group small {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.unit-toggle {
  margin-bottom: 1.25rem;
}

.unit-toggle-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.unit-toggle-btns {
  display: flex;
  gap: 0.5rem;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

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

.unit-btn {
  padding: 0.5rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 400;
  cursor: pointer;
  transition: all var(--transition);
}

.unit-btn:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.unit-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.calc-btn {
  width: 100%;
  padding: 1rem 1.5rem;
  background: var(--primary);
  border: none;
  border-radius: var(--radius-btn);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  margin-top: 1.25rem;
}

.calc-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.calc-btn:active {
  transform: translateY(0);
}

/* Results panel */
.results-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 1.5rem;
  position: sticky;
  top: 88px;
}

.results-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.result-item:last-child {
  border-bottom: none;
}

.result-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.result-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.result-value.highlight {
  color: var(--primary);
}

/* BMI calculator – bodycalc-style results */
.bmi-result-main {
  text-align: center;
  margin-bottom: 1.5rem;
}

.bmi-value {
  display: block;
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.2;
}

.bmi-label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.bmi-category {
  display: block;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0.5rem;
}

.bmi-scale {
  margin: 1.5rem 0;
}

.bmi-scale-bar {
  position: relative;
  height: 12px;
  background: linear-gradient(to right,
    rgba(99, 102, 241, 0.4) 0%,
    rgba(34, 197, 94, 0.4) 25%,
    rgba(234, 179, 8, 0.4) 50%,
    rgba(239, 68, 68, 0.4) 75%
  );
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.bmi-scale-marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 4px;
  height: 20px;
  background: var(--primary);
  border-radius: 2px;
  transition: left 0.2s ease;
}

.bmi-scale-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.bmi-category-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.bmi-category-card {
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border: 2px solid var(--border);
  border-radius: var(--radius-btn);
  text-align: center;
  transition: all var(--transition);
}

.bmi-category-card .bmi-card-range {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.bmi-category-card .bmi-card-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.bmi-category-card.active {
  border-color: var(--primary);
  background: rgba(249, 87, 0, 0.12);
}

.bmi-category-card.active .bmi-card-range,
.bmi-category-card.active .bmi-card-label {
  color: var(--primary);
}

.bmi-disclaimer {
  padding: 1rem;
  background: rgba(234, 179, 8, 0.12);
  border: 1px solid rgba(234, 179, 8, 0.4);
  border-radius: var(--radius-btn);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-primary);
  margin-top: 1rem;
}

.bmi-disclaimer strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.bmr-calorie-table-wrap {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.bmr-calorie-table-wrap h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.table-responsive {
  overflow-x: auto;
}

.bmr-calorie-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.bmr-calorie-table th,
.bmr-calorie-table td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.bmr-calorie-table th {
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-elevated);
}

.bmr-calorie-table td:last-child {
  font-weight: 600;
  color: var(--primary);
  text-align: right;
  white-space: nowrap;
}

.bmr-calorie-table tbody tr:hover {
  background: rgba(249, 87, 0, 0.04);
}

.bmr-table-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 0.75rem;
}

.bmr-table-note strong {
  color: var(--text-secondary);
}

.bmi-chart-section {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.bmi-chart-section h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.bmi-chart-section .chart-container {
  min-height: 200px;
  margin-top: 0;
}

/* Chart */
.chart-container {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-btn);
  min-height: 220px;
}

.chart-container canvas {
  max-height: 200px;
}

/* SEO Content */
.seo-content {
  margin-top: var(--section-gap);
  padding-top: var(--section-gap);
  border-top: 1px solid var(--border);
}

.seo-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--text-primary);
}

.seo-content h2:first-child {
  margin-top: 0;
}

.seo-content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.seo-content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.seo-content ul {
  margin-bottom: 1rem;
  padding-left: 1.25rem;
  color: var(--text-secondary);
}

.seo-content li {
  margin-bottom: 0.375rem;
}

.seo-content a {
  color: var(--primary);
  text-decoration: none;
}

.seo-content a:hover {
  text-decoration: underline;
}

/* FAQ */
.faq-item {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}

.faq-item p {
  margin: 0;
  font-size: 0.9375rem;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--primary);
}

/* Related links */
.related-section {
  margin-top: var(--section-gap);
  margin-bottom: var(--section-gap);
  padding-top: var(--section-gap);
  border-top: 1px solid var(--border);
}

.related-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.related-links a {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all var(--transition);
}

.related-links a:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Calculators listing page */
.calculators-section {
  padding: var(--section-gap) 0;
}

.home-disclaimer {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  background: rgba(234, 179, 8, 0.12);
  border: 1px solid rgba(234, 179, 8, 0.4);
  border-radius: var(--radius-card);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.home-disclaimer strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
}

.home-advantages {
  padding: var(--section-gap) 0 64px;
  border-top: 1px solid var(--border);
}

.home-advantages .section-title {
  text-align: center;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.advantage-card {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.advantage-card:hover {
  border-color: rgba(249, 87, 0, 0.3);
  box-shadow: var(--shadow-hover);
}

.advantage-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.advantage-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.advantage-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.calculators-section .section-title {
  margin-bottom: 1.25rem;
}

/* All calculators grid (non-featured) */
.calculators-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.calc-card {
  display: block;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}

.calc-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(249, 87, 0, 0.15);
}

.calc-card-icon {
  width: 40px;
  height: 40px;
  background: var(--bg);
  border-radius: var(--radius-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.calc-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.calc-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.calc-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.875rem;
}

.calc-card-tags span {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--primary);
  background: rgba(249, 87, 0, 0.12);
  border-radius: 4px;
  transition: background 0.3s ease, color 0.3s ease;
}

.calc-card:hover .calc-card-tags span {
  background: rgba(249, 87, 0, 0.2);
}

/* Content page (guides, blog, about) */
.content-page {
  padding: var(--section-gap) 0;
}

.content-page .lead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.content-body {
  max-width: 720px;
}

.content-body h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
}

.content-body p, .content-body li {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}