/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --color-brand:       #16a34a;
  --color-brand-dark:  #15803d;
  --color-brand-light: #e6f4ea;
  --color-bg:          #f5f7fb;
  --color-surface:     #ffffff;
  --color-border:      #e5e7eb;
  --color-text:        #111111;
  --color-text-muted:  #666666;
  --color-error-bg:    #fef2f2;
  --color-error-text:  #b91c1c;
  --color-error-border:#fca5a5;
  --radius-sm:         8px;
  --radius-md:         12px;
  --radius-lg:         14px;
  --shadow-card:       0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-hover:      0 14px 30px rgba(0, 0, 0, 0.09);
  --transition:        0.2s ease;
}

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 12px;
}

.logo {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  margin: 0 6px;
  text-decoration: none;
  color: #333;
  font-size: 14px;
  transition: color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--color-brand);
}

.nav-cta {
  background: var(--color-brand);
  color: var(--color-surface) !important;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--color-brand-dark);
  transform: translateY(-1px);
}

/* Mobile header — hide nav links, keep logo + CTA */
@media (max-width: 480px) {
  .header {
    padding: 10px 16px;
  }

  .nav-links {
    display: none;
  }

  .logo {
    font-size: 14px;
  }

  .nav-cta {
    padding: 6px 12px;
    font-size: 13px;
  }
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 20px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

.hero-left {
  flex: 1 1 0;
  min-width: 0;
}

.hero-left h1 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 16px;
}

.hero-desc {
  font-size: 16px;
  color: #444;
  margin: 0 0 24px;
}

.hero-note {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

.hero-guide {
  margin: 12px 0 0;
  font-size: 14px;
}

.hero-card {
  flex: 1 1 0;
  min-width: 0;
  background: var(--color-surface);
  padding: 28px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}

@media (max-width: 700px) {
  .hero {
    flex-direction: column;
    gap: 28px;
  }

  .hero-card {
    width: 100%;
  }
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: #333;
}

input[type="number"] {
  display: block;
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
}

input[type="number"]:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

input[type="number"]:hover {
  border-color: #9ca3af;
}

.field-hint {
  font-size: 12px;
  color: var(--color-text-muted);
  margin: 0 0 16px;
  line-height: 1.5;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary {
  display: inline-block;
  background: var(--color-brand);
  color: var(--color-surface);
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--color-brand-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-full {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 8px;
}

/* ============================================================
   ERROR & RESULT
   ============================================================ */
.error-msg {
  background: var(--color-error-bg);
  color: var(--color-error-text);
  border: 1px solid var(--color-error-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 14px;
  margin-bottom: 14px;
}

.result-box {
  background: var(--color-brand-light);
  border: 1px solid #bbf7d0;
  padding: 18px 20px;
  margin-top: 18px;
  border-radius: var(--radius-sm);
}

.result-box p {
  margin: 6px 0;
  font-size: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.result-label {
  color: #374151;
  font-size: 14px;
}

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

.result-value.highlight {
  color: var(--color-brand);
  font-size: 16px;
}

/* ============================================================
   SECTION SPACING & TYPOGRAPHY
   ============================================================ */
.intent-line {
  padding-top: 16px;
  padding-bottom: 16px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.intent-line p {
  font-size: 15px;
  color: #444;
  margin: 0;
}

.trust h2,
.calculators h2,
.value h2,
.guides h2 {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  margin: 0 0 12px;
}

.trust-desc {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  color: #444;
  font-size: 15px;
}

/* ============================================================
   AD BOX
   ============================================================ */
.ad-box {
  height: 80px;
  background: #dbe2ea;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* ============================================================
   CALCULATOR GRID & CARDS
   ============================================================ */
.calculators h3 {
  font-size: 16px;
  font-weight: 600;
  color: #374151;
  margin: 28px 0 14px;
}

.calculator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.calculator-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.calculator-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top center, rgba(22, 163, 74, 0.06), transparent 65%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.calculator-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(22, 163, 74, 0.3);
}

.calculator-card:hover::before {
  opacity: 1;
}

.card-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 28px 16px;
  text-decoration: none;
  color: var(--color-text);
  height: 100%;
}

.card-icon {
  font-size: 26px;
  line-height: 1;
  transition: transform 0.25s ease;
}

.calculator-card:hover .card-icon {
  transform: scale(1.12);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  text-align: center;
  line-height: 1.35;
}

.open {
  font-size: 13px;
  color: var(--color-brand);
  font-weight: 500;
  transition: transform 0.25s ease;
}

.calculator-card:hover .open {
  transform: translateX(4px);
}

/* ============================================================
   RESPONSIVE GRID BREAKPOINTS
   ============================================================ */
@media (max-width: 900px) {
  .calculator-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .calculator-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   VALUE LIST & GUIDE LIST
   ============================================================ */
.value-list,
.guide-list {
  padding-left: 20px;
  margin: 0;
}

.value-list li,
.guide-list li {
  margin-bottom: 10px;
  font-size: 15px;
  color: #333;
}

.guide-list a {
  color: var(--color-brand);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.guide-list a:hover {
  color: var(--color-brand-dark);
  text-decoration: underline;
}

/* ============================================================
   COMPARISON CARDS
   ============================================================ */
.compare-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.compare-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--color-border);
}

.compare-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 12px;
}

.compare-card p {
  margin: 5px 0;
  font-size: 14px;
  color: #444;
}

.good {
  color: var(--color-brand);
  font-weight: 600;
}

@media (max-width: 600px) {
  .compare-cards {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  text-align: center;
  padding: 24px 20px;
  color: var(--color-text-muted);
  font-size: 13px;
  border-top: 1px solid var(--color-border);
  margin-top: 40px;
}

/* ============================================================
   GUIDE PAGES (what-are-treasury-bills, etc.)
   ============================================================ */
.guide-meta {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0 0 32px;
}

/* Table of Contents */
.toc {
  background: var(--color-brand-light);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  padding: 20px 28px;
  margin: 0 0 40px;
}

.toc h2 {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--color-brand);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toc ol {
  margin: 0;
  padding-left: 20px;
}

.toc li {
  margin-bottom: 6px;
  font-size: 14px;
}

.toc a {
  color: var(--color-brand);
  text-decoration: none;
  font-weight: 500;
}

.toc a:hover {
  text-decoration: underline;
}

/* Guide Tables */
.guide-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 14px;
}

.guide-table th {
  background: #f1f5f9;
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--color-border);
  color: #374151;
}

.guide-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  color: #444;
  vertical-align: top;
}

.guide-table tr:last-child td {
  border-bottom: none;
}

.guide-table tr:nth-child(even) td {
  background: #f8fafc;
}

/* Highlight & Warning Boxes */
.highlight-box {
  background: var(--color-brand-light);
  border-left: 4px solid var(--color-brand);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 18px;
  margin: 16px 0 0;
  font-size: 15px;
}

.highlight-box strong {
  color: var(--color-brand);
}

.warning-box {
  background: #fffbeb;
  border-left: 4px solid #d97706;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 18px;
  margin: 16px 0 0;
  font-size: 15px;
}

/* Numbered Step List */
.step-list {
  counter-reset: steps;
  list-style: none;
  padding: 0;
}

.step-list li {
  counter-increment: steps;
  position: relative;
  padding-left: 40px;
  margin-bottom: 16px;
  font-size: 15px;
}

.step-list li::before {
  content: counter(steps);
  background: var(--color-brand);
  color: white;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  position: absolute;
  left: 0;
  top: 1px;
}

/* Pros / Cons Cards */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 20px 0;
}

.pros-cons-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.pros-cons-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 12px;
}

.pros-cons-card.pros h3 { color: var(--color-brand); }
.pros-cons-card.cons h3 { color: #dc2626; }

.pros-cons-card ul {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  color: #444;
}

.pros-cons-card li { margin-bottom: 8px; }

/* FAQ Items */
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 18px 0;
}

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

.faq-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--color-text);
}

.faq-item p {
  margin: 0;
  font-size: 15px;
  color: #444;
  line-height: 1.6;
}

/* Calculator CTA Blocks */
.calculator-cta {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.calculator-cta p {
  margin: 0;
  font-size: 14px;
  color: #444;
}

.calculator-cta strong {
  display: block;
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 4px;
}

@media (max-width: 600px) {
  .pros-cons { grid-template-columns: 1fr; }
  .calculator-cta { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   SELECT INPUTS (shared across all calculator pages)
   ============================================================ */
select {
  display: block;
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

select:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

select:hover {
  border-color: #9ca3af;
}

/* ============================================================
   DATE INPUT (shared)
   ============================================================ */
input[type="date"] {
  display: block;
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit;
  cursor: pointer;
  /* Remove any appearance overrides that hide native icon */
  -webkit-appearance: none;
  appearance: none;
}

input[type="date"]:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

/* Restore the native calendar icon */
input[type="date"]::-webkit-calendar-picker-indicator {
  opacity: 1;
  cursor: pointer;
  color: var(--color-text-muted);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='16' y1='2' x2='16' y2='6'%3E%3C/line%3E%3Cline x1='8' y1='2' x2='8' y2='6'%3E%3C/line%3E%3Cline x1='3' y1='10' x2='21' y2='10'%3E%3C/line%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: 16px 16px;
  width: 16px;
  height: 16px;
  padding: 0;
  /* Make entire input area clickable on mobile */
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
}

/* Wrapper needed for absolute positioning of icon */
.date-input-wrap {
  position: relative;
  display: block;
}



/* ============================================================
   VERDICT BOXES (T-Bill vs comparison pages)
   ============================================================ */
.verdict-win {
  background: #dcfce7;
  color: #15803d;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
}

.verdict-lose {
  background: #fef2f2;
  color: #b91c1c;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
}

.verdict-tie {
  background: #fffbeb;
  color: #d97706;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
}

/* ============================================================
   RESULT TABLES (reinvestment, ladder, income calculators)
   ============================================================ */
.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin-top: 8px;
}

.result-table thead tr {
  background: #f1f5f9;
  text-align: left;
}

.result-table thead th {
  padding: 10px 12px;
  border-bottom: 2px solid var(--color-border);
  font-weight: 600;
  color: #374151;
}

.result-table tbody tr:nth-child(even) {
  background: #f8fafc;
}

.result-table tbody td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--color-border);
  color: #374151;
}

.result-table tbody tr:last-child td {
  font-weight: 600;
  color: var(--color-brand);
  border-bottom: none;
}

/* ============================================================
   SPACING FIXES — consistent section gaps
   ============================================================ */

/* Standard gap between stacked sections — 0 extra, base padding handles it */
.container + .container {
  padding-top: 0;
}


/* Hero section needs more breathing room below */
.hero.container {
  padding-top: 40px;
  padding-bottom: 40px;
}

/* FAQ section — reduce top gap since it follows related calculators */
.faq-section.container {
  padding-top: 8px;
}

/* First content section after hero */
section.container:first-of-type {
  padding-top: 40px;
}

/* Calculator CTA blocks */
.calculator-cta {
  margin: 12px 0;
}

/* H2 headings inside sections — add breathing room between topics */
.container h2 + p,
.container h2 + ul,
.container h2 + table,
.container h2 + .highlight-box,
.container h2 + .warning-box {
  margin-top: 10px;
}

/* Space between consecutive h2 headings within same section */
.container p + h2,
.container table + h2 {
  margin-top: 28px;
}

/* More breathing room after boxes and lists before new heading */
.container ul + h2,
.container ol + h2,
.container .highlight-box + h2,
.container .warning-box + h2,
.container .calculator-cta + h2,
.container .compare-cards + h2,
.container .guide-table + h2 {
  margin-top: 40px;
}

/* ============================================================
   STATIC PAGES (Disclosure, Contact)
   ============================================================ */
.static-page {
  max-width: 740px;
  margin: 0 auto;
}

.static-page h1 {
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  margin: 0 0 6px;
}

.static-page h2 {
  font-size: 18px;
  font-weight: 650;
  margin: 32px 0 10px;
  color: var(--color-text);
}

.static-meta {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0 0 32px;
}

.static-page p {
  font-size: 15px;
  color: #333;
  margin: 0 0 14px;
  line-height: 1.7;
}

.static-page ul {
  padding-left: 20px;
  margin: 0 0 16px;
}

.static-page ul li {
  font-size: 15px;
  color: #333;
  margin-bottom: 8px;
  line-height: 1.6;
}

.contact-note {
  background: #fffbeb;
  border: 1px solid #fcd34d;
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 14px;
  color: #92400e;
  margin: 24px 0 28px;
  line-height: 1.6;
}

.contact-form-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-top: 8px;
  box-shadow: var(--shadow-card);
}

.contact-form-wrap label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  margin-top: 18px;
  color: #333;
}

.contact-form-wrap label:first-of-type { margin-top: 0; }

.contact-form-wrap input[type="text"],
.contact-form-wrap input[type="email"],
.contact-form-wrap select,
.contact-form-wrap textarea {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-form-wrap input[type="text"]:focus,
.contact-form-wrap input[type="email"]:focus,
.contact-form-wrap select:focus,
.contact-form-wrap textarea:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

.contact-form-wrap textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
}

.contact-form-wrap .btn-primary { margin-top: 22px; }

/* ============================================================
   FOCUS VISIBLE — keyboard navigation for buttons
   ============================================================ */
.btn-primary:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}


/* ============================================================
   MOBILE STYLES
   ============================================================ */
@media (max-width: 600px) {

  /* Header */
  .header { padding: 12px 16px; }
  .nav-links { display: none; }

  /* Layout */
  .container { padding: 24px 16px; }

  /* Tables — horizontal scroll instead of overflow */
  .guide-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .guide-table th,
  .guide-table td { font-size: 13px; padding: 8px 10px; }

  /* Step list */
  .step-list li { padding-left: 34px; font-size: 14px; }
  .step-list li::before { width: 24px; height: 24px; font-size: 12px; }


  /* Pros/cons — already handled above, reinforcing */
  .pros-cons { grid-template-columns: 1fr; gap: 14px; }

  /* Boxes */
  .highlight-box, .warning-box { font-size: 14px; padding: 12px 14px; }

  /* TOC */
  .toc { padding: 16px 18px; }
  .toc li { font-size: 13px; }

  /* Calculator CTA */
  .calculator-cta { flex-direction: column; align-items: flex-start; gap: 12px; }
  .calculator-cta .btn-primary { width: 100%; text-align: center; }

  /* Typography */
  h1 { font-size: clamp(20px, 6vw, 28px); word-break: break-word; }
  h2 { font-size: clamp(17px, 5vw, 22px); }
  h3 { font-size: 15px; }

  /* Prevent overflow */
  img, iframe, pre { max-width: 100%; }

  input[type="date"] {
    padding-right: 40px; /* Space for icon */
    min-height: 44px;    /* iOS minimum tap target */
  }

  input[type="date"]::-webkit-calendar-picker-indicator {
    /* Expand tap area on mobile */
    width: 44px;
    height: 44px;
    right: 0;
    top: 0;
    transform: none;
    background-position: center;
    opacity: 1;
  }
}