/* MOQ Profit Calculator — calculator.css */

/* ============================================================
   CSS VARIABLES & RESET
   ============================================================ */
#mpc-wrap, #mpc-wrap * {
  box-sizing: border-box;
}
#mpc-wrap {
  --mpc-primary: #2563eb;
  --mpc-primary-dark: #1d4ed8;
  --mpc-primary-light: #eff6ff;
  --mpc-success: #16a34a;
  --mpc-success-bg: #f0fdf4;
  --mpc-warning: #d97706;
  --mpc-warning-bg: #fffbeb;
  --mpc-danger: #dc2626;
  --mpc-danger-bg: #fef2f2;
  --mpc-gray-50: #f9fafb;
  --mpc-gray-100: #f3f4f6;
  --mpc-gray-200: #e5e7eb;
  --mpc-gray-300: #d1d5db;
  --mpc-gray-400: #9ca3af;
  --mpc-gray-500: #6b7280;
  --mpc-gray-600: #4b5563;
  --mpc-gray-700: #374151;
  --mpc-gray-800: #1f2937;
  --mpc-gray-900: #111827;
  --mpc-border-radius: 12px;
  --mpc-shadow: 0 1px 3px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.06);
  --mpc-shadow-lg: 0 4px 16px rgba(0,0,0,.1), 0 2px 6px rgba(0,0,0,.06);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--mpc-gray-800);
  background: #fff;
  line-height: 1.6;
}

/* ============================================================
   HERO
   ============================================================ */
.mpc-hero {
  background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);
  padding: 5rem 1.5rem 4rem;
  text-align: center;
  color: #fff;
}
.mpc-hero-inner {
  max-width: 720px;
  margin: 0 auto;
}
.mpc-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}
.mpc-h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 0.5rem;
  color: #fff;
}
.mpc-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin: 0 0 1rem;
  font-weight: 500;
}
.mpc-hero-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  margin: 0 auto 2rem;
}
.mpc-hero-stats {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.mpc-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.mpc-stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
}
.mpc-stat-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.mpc-cta-btn {
  display: inline-block;
  background: #fff;
  color: var(--mpc-primary);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.875rem 2.5rem;
  border-radius: 8px;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}
.mpc-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.2); }

/* ============================================================
   LAYOUT
   ============================================================ */
.mpc-section { padding: 4rem 1.5rem; }
.mpc-section-alt { background: var(--mpc-gray-50); }
.mpc-container { max-width: 1280px; margin: 0 auto; }
.mpc-content-wide { max-width: 1000px; margin: 0 auto; }
.mpc-content-narrow { max-width: 720px; margin: 0 auto; }

.mpc-calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}
@media (min-width: 1024px) {
  .mpc-calc-grid {
    grid-template-columns: 480px 1fr;
  }
  .mpc-results-panel {
    position: sticky;
    top: 16px;
    max-height: 95vh;
    overflow-y: auto;
    padding-right: 4px;
    scrollbar-width: thin;
  }
}

/* ============================================================
   CARDS
   ============================================================ */
.mpc-card {
  background: #fff;
  border: 1px solid var(--mpc-gray-200);
  border-radius: var(--mpc-border-radius);
  padding: 1.5rem;
  box-shadow: var(--mpc-shadow);
  margin-bottom: 1rem;
}
.mpc-card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}
.mpc-card-icon { font-size: 1.2rem; line-height: 1; }
.mpc-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--mpc-gray-800);
  margin: 0;
  flex: 1;
}
.mpc-card-desc { font-size: 0.875rem; color: var(--mpc-gray-500); margin: 0 0 1rem; }

/* ============================================================
   FIELDS
   ============================================================ */
.mpc-fields-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 480px) {
  .mpc-fields-grid { grid-template-columns: 1fr; }
}
.mpc-field-group { display: flex; flex-direction: column; gap: 0.3rem; }
.mpc-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--mpc-gray-700);
}
.mpc-required { color: var(--mpc-danger); }
.mpc-input {
  width: 100%;
  padding: 0.65rem 0.875rem;
  border: 1.5px solid var(--mpc-gray-300);
  border-radius: 8px;
  font-size: 0.9375rem;
  color: var(--mpc-gray-800);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
}
.mpc-input:focus {
  outline: none;
  border-color: var(--mpc-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.mpc-select { cursor: pointer; }
.mpc-hint { font-size: 0.75rem; color: var(--mpc-gray-400); line-height: 1.4; }

/* Toggle advanced */
.mpc-toggle-btn {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--mpc-primary);
  background: var(--mpc-primary-light);
  border: none;
  border-radius: 6px;
  padding: 0.3rem 0.75rem;
  cursor: pointer;
  transition: background .15s;
}
.mpc-toggle-btn:hover { background: #dbeafe; }
.mpc-hidden { display: none !important; }

/* ============================================================
   CALCULATE BUTTON
   ============================================================ */
.mpc-calc-btn {
  width: 100%;
  background: var(--mpc-primary);
  color: #fff;
  font-size: 1.0625rem;
  font-weight: 700;
  padding: 1rem 2rem;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .15s;
  box-shadow: 0 4px 12px rgba(37,99,235,.35);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.mpc-calc-btn:hover { background: var(--mpc-primary-dark); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(37,99,235,.4); }
.mpc-calc-btn:active { transform: translateY(0); }
.mpc-calc-note { font-size: 0.75rem; color: var(--mpc-gray-400); text-align: center; margin-top: 0.5rem; }

/* Loader spinner */
.mpc-loader {
  width: 20px; height: 20px;
  border: 2.5px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: mpc-spin .7s linear infinite;
}
@keyframes mpc-spin { to { transform: rotate(360deg); } }

/* ============================================================
   PLACEHOLDER
   ============================================================ */
.mpc-placeholder-card {
  text-align: center;
  padding: 4rem 2rem;
}
.mpc-placeholder-icon { font-size: 3rem; margin-bottom: 1rem; }
.mpc-placeholder-text { color: var(--mpc-gray-500); font-size: 0.9375rem; line-height: 1.6; }

/* ============================================================
   VERDICT
   ============================================================ */
.mpc-verdict {
  border-radius: var(--mpc-border-radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  border: 2px solid;
}
.mpc-verdict.verdict-green { background: var(--mpc-success-bg); border-color: #86efac; }
.mpc-verdict.verdict-yellow { background: var(--mpc-warning-bg); border-color: #fcd34d; }
.mpc-verdict.verdict-red { background: var(--mpc-danger-bg); border-color: #fca5a5; }
.mpc-verdict-icon { font-size: 2rem; line-height: 1; flex-shrink: 0; }
.mpc-verdict-label {
  font-size: 1.0625rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}
.verdict-green .mpc-verdict-label { color: var(--mpc-success); }
.verdict-yellow .mpc-verdict-label { color: var(--mpc-warning); }
.verdict-red .mpc-verdict-label { color: var(--mpc-danger); }
.mpc-verdict-summary { font-size: 0.875rem; color: var(--mpc-gray-600); line-height: 1.5; }

/* ============================================================
   SCORE CARDS
   ============================================================ */
.mpc-scores-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}
@media (max-width: 480px) {
  .mpc-scores-row { grid-template-columns: 1fr; }
}
.mpc-score-card {
  background: #fff;
  border: 1px solid var(--mpc-gray-200);
  border-radius: var(--mpc-border-radius);
  padding: 1rem;
  text-align: center;
  box-shadow: var(--mpc-shadow);
}
.mpc-score-title { font-size: 0.75rem; font-weight: 600; color: var(--mpc-gray-500); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.mpc-score-gauge-wrap { display: flex; justify-content: center; margin-bottom: 0.25rem; }
.mpc-score-value { font-size: 1.75rem; font-weight: 800; color: var(--mpc-gray-800); }
.mpc-score-label { font-size: 0.75rem; font-weight: 600; margin-top: 0.2rem; }

/* ============================================================
   METRICS GRID
   ============================================================ */
.mpc-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .mpc-metrics-grid { grid-template-columns: repeat(3, 1fr); }
}
.mpc-metric {
  background: var(--mpc-gray-50);
  border: 1px solid var(--mpc-gray-100);
  border-radius: 8px;
  padding: 0.875rem;
}
.mpc-metric-label { font-size: 0.7rem; font-weight: 600; color: var(--mpc-gray-400); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.2rem; }
.mpc-metric-value { font-size: 1.05rem; font-weight: 800; color: var(--mpc-gray-800); }
.mpc-metric-value.positive { color: var(--mpc-success); }
.mpc-metric-value.negative { color: var(--mpc-danger); }
.mpc-metric-value.warning { color: var(--mpc-warning); }

/* ============================================================
   CHARTS
   ============================================================ */
.mpc-chart-wrap { position: relative; height: 260px; }
.mpc-chart-small { height: 220px; }

/* ============================================================
   SCENARIOS
   ============================================================ */
.mpc-scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
@media (max-width: 480px) { .mpc-scenarios-grid { grid-template-columns: 1fr; } }
.mpc-scenario-card {
  border-radius: 10px;
  padding: 1rem;
  text-align: center;
}
.mpc-scenario-card.best { background: var(--mpc-success-bg); border: 1px solid #86efac; }
.mpc-scenario-card.likely { background: var(--mpc-primary-light); border: 1px solid #93c5fd; }
.mpc-scenario-card.worst { background: var(--mpc-danger-bg); border: 1px solid #fca5a5; }
.mpc-scenario-name { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 0.5rem; }
.best .mpc-scenario-name { color: var(--mpc-success); }
.likely .mpc-scenario-name { color: var(--mpc-primary); }
.worst .mpc-scenario-name { color: var(--mpc-danger); }
.mpc-scenario-profit { font-size: 1.125rem; font-weight: 800; margin-bottom: 0.25rem; }
.mpc-scenario-details { font-size: 0.75rem; color: var(--mpc-gray-500); }

/* ============================================================
   INSIGHTS
   ============================================================ */
.mpc-insights-list { display: flex; flex-direction: column; gap: 0.625rem; }
.mpc-insight {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  line-height: 1.5;
}
.mpc-insight.positive { background: var(--mpc-success-bg); color: #166534; }
.mpc-insight.warning { background: var(--mpc-warning-bg); color: #92400e; }
.mpc-insight.danger { background: var(--mpc-danger-bg); color: #991b1b; }
.mpc-insight-icon { font-size: 1rem; flex-shrink: 0; line-height: 1.5; }

/* ============================================================
   EXPORT BAR
   ============================================================ */
.mpc-export-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.mpc-export-btn {
  flex: 1;
  min-width: 120px;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--mpc-gray-300);
  border-radius: 8px;
  background: #fff;
  color: var(--mpc-gray-700);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}
.mpc-export-btn:hover { border-color: var(--mpc-primary); color: var(--mpc-primary); background: var(--mpc-primary-light); }

/* ============================================================
   CONTENT SECTIONS
   ============================================================ */
.mpc-section-title {
  font-size: clamp(1.375rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--mpc-gray-900);
  margin: 0 0 1rem;
  line-height: 1.25;
}
.mpc-section-lead {
  font-size: 1rem;
  color: var(--mpc-gray-600);
  max-width: 700px;
  margin: 0 0 2.5rem;
  line-height: 1.7;
}
.mpc-two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) { .mpc-two-col { grid-template-columns: 1fr 1fr; } }
.mpc-sub-h {
  font-size: 1rem;
  font-weight: 700;
  color: var(--mpc-gray-800);
  margin: 1.5rem 0 0.5rem;
}
.mpc-two-col p { font-size: 0.9375rem; color: var(--mpc-gray-600); line-height: 1.75; margin: 0 0 0.75rem; }

/* Steps */
.mpc-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.mpc-step {
  background: #fff;
  border: 1px solid var(--mpc-gray-200);
  border-radius: var(--mpc-border-radius);
  padding: 1.5rem;
  position: relative;
}
.mpc-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: var(--mpc-primary);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 800;
  border-radius: 50%;
  margin-bottom: 0.875rem;
}
.mpc-step-title { font-size: 0.9375rem; font-weight: 700; margin: 0 0 0.5rem; }
.mpc-step p { font-size: 0.875rem; color: var(--mpc-gray-600); line-height: 1.65; margin: 0; }

/* Info cards */
.mpc-info-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.mpc-info-card { background: #fff; border: 1px solid var(--mpc-gray-200); border-radius: var(--mpc-border-radius); padding: 1.25rem; }
.mpc-info-card h3 { font-size: 0.9375rem; font-weight: 700; margin: 0 0 0.5rem; color: var(--mpc-primary); }
.mpc-info-card p { font-size: 0.875rem; color: var(--mpc-gray-600); line-height: 1.65; margin: 0; }

/* Use cases */
.mpc-usecases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; }
.mpc-usecase { background: #fff; border: 1px solid var(--mpc-gray-200); border-radius: var(--mpc-border-radius); padding: 1.5rem; text-align: center; }
.mpc-usecase-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.mpc-usecase h3 { font-size: 0.9375rem; font-weight: 700; margin: 0 0 0.5rem; }
.mpc-usecase p { font-size: 0.8125rem; color: var(--mpc-gray-500); line-height: 1.6; margin: 0; }

/* Mistakes */
.mpc-mistakes-list { display: flex; flex-direction: column; gap: 1.25rem; }
.mpc-mistake { display: flex; gap: 1.25rem; align-items: flex-start; padding: 1.25rem; background: #fff; border: 1px solid var(--mpc-gray-200); border-radius: var(--mpc-border-radius); }
.mpc-mistake-num { font-size: 1.5rem; font-weight: 900; color: var(--mpc-gray-200); flex-shrink: 0; line-height: 1; }
.mpc-mistake h3 { font-size: 0.9375rem; font-weight: 700; margin: 0 0 0.4rem; }
.mpc-mistake p { font-size: 0.875rem; color: var(--mpc-gray-600); line-height: 1.65; margin: 0; }

/* Examples */
.mpc-examples-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.mpc-example-card { background: #fff; border: 1px solid var(--mpc-gray-200); border-radius: var(--mpc-border-radius); padding: 1.5rem; position: relative; }
.mpc-example-badge { display: inline-block; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; padding: 0.2rem 0.75rem; border-radius: 100px; margin-bottom: 0.75rem; }
.mpc-badge-green { background: var(--mpc-success-bg); color: var(--mpc-success); }
.mpc-badge-yellow { background: var(--mpc-warning-bg); color: var(--mpc-warning); }
.mpc-badge-red { background: var(--mpc-danger-bg); color: var(--mpc-danger); }
.mpc-example-card h3 { font-size: 0.9375rem; font-weight: 700; margin: 0 0 0.75rem; }
.mpc-example-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.375rem; }
.mpc-example-list li { font-size: 0.8125rem; color: var(--mpc-gray-600); }

/* Benefits */
.mpc-benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1rem; }
.mpc-benefit { display: flex; gap: 0.75rem; align-items: flex-start; font-size: 0.9rem; color: var(--mpc-gray-700); line-height: 1.55; }
.mpc-benefit-check { color: var(--mpc-success); font-size: 1.1rem; font-weight: 700; flex-shrink: 0; }

/* FAQ */
.mpc-faq-list { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--mpc-gray-200); border-radius: var(--mpc-border-radius); overflow: hidden; }
.mpc-faq-item { border-bottom: 1px solid var(--mpc-gray-200); }
.mpc-faq-item:last-child { border-bottom: none; }
.mpc-faq-q {
  width: 100%;
  background: #fff;
  border: none;
  padding: 1.1rem 1.25rem;
  text-align: left;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--mpc-gray-800);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  transition: background .1s;
}
.mpc-faq-q:hover { background: var(--mpc-gray-50); }
.mpc-faq-q[aria-expanded="true"] { color: var(--mpc-primary); background: var(--mpc-primary-light); }
.mpc-faq-arrow { font-size: 1.25rem; font-weight: 300; transition: transform .2s; flex-shrink: 0; }
.mpc-faq-q[aria-expanded="true"] .mpc-faq-arrow { transform: rotate(45deg); }
.mpc-faq-a { display: none; padding: 0 1.25rem 1.1rem; font-size: 0.9rem; color: var(--mpc-gray-600); line-height: 1.7; }
.mpc-faq-a p { margin: 0; }
.mpc-faq-a.open { display: block; }

/* CTA */
.mpc-cta-section { background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%); color: #fff; }
.mpc-cta-title { font-size: clamp(1.5rem, 3.5vw, 2.25rem); font-weight: 800; color: #fff; margin: 0 0 1rem; }
.mpc-cta-desc { font-size: 1rem; color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 2rem; line-height: 1.7; }
.mpc-cta-btn-large { font-size: 1.0625rem; padding: 1rem 2.75rem; }

/* Print styles */
@media print {
  .mpc-hero, .mpc-section, .mpc-cta-section { padding: 1.5rem !important; }
  .mpc-inputs-panel, .mpc-export-bar { display: none !important; }
  .mpc-results-panel { position: static !important; max-height: none !important; overflow: visible !important; }
  #mpc-placeholder { display: none !important; }
  #mpc-results { display: block !important; }
  .mpc-card { break-inside: avoid; }
}

/* Accessibility */
:focus-visible { outline: 3px solid var(--mpc-primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ============================================================
   PRINT / PDF EXPORT — Enhanced
   ============================================================ */
@media print {
  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }

  body { background: #fff !important; margin: 0; padding: 0; }

  #mpc-wrap { font-size: 11pt; color: #000; }

  /* Hide non-essential UI for print */
  .mpc-hero,
  .mpc-inputs-panel,
  .mpc-export-bar,
  .mpc-section:not(.mpc-print-section),
  .mpc-cta-section,
  .mpc-faq-list,
  .mpc-adsense-wrap,
  #mpc-placeholder,
  .mpc-toggle-btn,
  .mpc-calc-btn,
  .mpc-calc-note,
  .mpc-hero-stats,
  .mpc-cta-btn { display: none !important; }

  /* Results always visible when printing */
  .mpc-results-panel { position: static !important; max-height: none !important; overflow: visible !important; width: 100% !important; }
  #mpc-results { display: block !important; }

  .mpc-calc-grid { display: block !important; }

  /* Cards */
  .mpc-card {
    border: 1px solid #ccc !important;
    box-shadow: none !important;
    page-break-inside: avoid;
    margin-bottom: 0.75rem;
    padding: 0.875rem;
  }

  /* Scores row */
  .mpc-scores-row {
    display: flex !important;
    gap: 0.5rem;
  }
  .mpc-score-card { border: 1px solid #ccc !important; }

  /* Charts — give fixed height for print */
  .mpc-chart-wrap { height: 200px !important; }
  .mpc-chart-small { height: 160px !important; }

  /* Metrics grid */
  .mpc-metrics-grid { grid-template-columns: repeat(3, 1fr) !important; }

  /* Add print header */
  .mpc-results-panel::before {
    content: 'MOQ Profit Calculator — Analysis Report';
    display: block;
    font-size: 16pt;
    font-weight: 800;
    color: #1e40af;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #1e40af;
  }

  /* Page breaks */
  .mpc-card:nth-child(4) { page-break-before: always; }
}

/* ============================================================
   ADSENSE WRAPPER
   ============================================================ */
.mpc-adsense-wrap {
  max-width: 100%;
  overflow: hidden;
}

/* ============================================================
   INPUT VALIDATION STATES
   ============================================================ */
.mpc-input.mpc-input-error {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220,38,38,.12) !important;
}
.mpc-input.mpc-input-valid {
  border-color: #16a34a;
}
.mpc-field-error-msg {
  font-size: 0.75rem;
  color: #dc2626;
  margin-top: 2px;
}

/* ============================================================
   LOADING SKELETON (shown while recalculating)
   ============================================================ */
.mpc-skeleton {
  background: linear-gradient(90deg, #f3f4f6 25%, #e9eaec 50%, #f3f4f6 75%);
  background-size: 200% 100%;
  animation: mpc-shimmer 1.4s infinite;
  border-radius: 6px;
  height: 1.2rem;
}
@keyframes mpc-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ============================================================
   TOOLTIP (for metric labels)
   ============================================================ */
.mpc-tooltip-wrap { position: relative; display: inline-flex; align-items: center; gap: 3px; }
.mpc-tooltip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px; height: 14px;
  background: #9ca3af;
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  border-radius: 50%;
  cursor: help;
  flex-shrink: 0;
}
.mpc-tooltip-icon:hover + .mpc-tooltip-text,
.mpc-tooltip-icon:focus + .mpc-tooltip-text { display: block; }
.mpc-tooltip-text {
  display: none;
  position: absolute;
  left: 0; bottom: 120%;
  background: #1f2937;
  color: #fff;
  font-size: 0.7rem;
  line-height: 1.4;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  white-space: nowrap;
  z-index: 100;
  pointer-events: none;
  min-width: 160px;
  max-width: 220px;
  white-space: normal;
}

/* ============================================================
   MISC ENHANCEMENTS
   ============================================================ */

/* Smooth scroll for anchor links */
html { scroll-behavior: smooth; }

/* Section separator */
.mpc-section + .mpc-section-alt,
.mpc-section-alt + .mpc-section { border-top: 1px solid #e5e7eb; }

/* Code blocks in help */
.mpc-code-block {
  background: #1e293b;
  color: #7dd3fc;
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  padding: 1rem 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0.5rem 0;
}

/* Focus visible ring for accessibility */
.mpc-calc-btn:focus-visible,
.mpc-export-btn:focus-visible,
.mpc-toggle-btn:focus-visible,
.mpc-cta-btn:focus-visible { outline: 3px solid #93c5fd; outline-offset: 3px; }

/* Result number highlight animation */
@keyframes mpc-pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}
.mpc-metric-value.mpc-updated { animation: mpc-pop 0.3s ease; }

/* High contrast mode support */
@media (forced-colors: active) {
  .mpc-input { border: 2px solid ButtonText; }
  .mpc-calc-btn { border: 2px solid ButtonText; }
}