/* ============ BASE STYLES ============ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Premium links */
.premium-link {
  color: var(--secondary);
  font-weight: 600;
  text-decoration: none;
  background-image: linear-gradient(var(--secondary), var(--secondary));
  background-position: 0% 100%;
  background-repeat: no-repeat;
  background-size: 0% 2px;
  transition: background-size 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s ease;
}

.premium-link:hover {
  background-size: 100% 2px;
  color: var(--secondary-dark);
}

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

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--secondary);
  color: white;
  padding: 8px 16px;
  z-index: 100;
  transition: top 0.2s;
  font-weight: 600;
  border-radius: 0 0 4px 0;
  text-decoration: none;
}

.skip-link:focus {
  top: 0;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Desktop: hide mobile nav elements */
.mobile-nav-toggle,
.mobile-nav-overlay,
.mobile-nav-panel {
  display: none;
}

/* Navigation */
.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background-color: #2c3e50;
  color: white;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-maple {
  color: #ffffff;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.1em;
  font-weight: 600;
}

.beta-badge {
  background: var(--secondary);
  color: white;
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: 100px;
  vertical-align: middle;
  margin-left: 8px;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: transform 0.2s, background 0.2s;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.beta-badge:hover {
  background: var(--info);
  transform: translateY(-1px);
}

.nav-brand-text {
  display: flex;
  flex-direction: column;
}

.nav-subtitle {
  font-size: 0.75em;
  color: #ffffff;
  font-weight: 400;
}

.nav-disclaimer {
  font-size: 0.65em;
  color: #ffffff;
  font-weight: 400;
  font-style: italic;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switcher {
  display: flex;
  gap: 4px;
}

.lang-link {
  display: inline-block;
  padding: 3px 8px;
  font-size: 0.75em;
  font-weight: 600;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 4px;
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: background 0.2s;
}

.lang-link:hover {
  background: rgba(255, 255, 255, 0.4);
}

.nav-back {
  font-size: 0.8em;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s;
}

.nav-back:hover {
  color: #fff;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-size: 0.9em;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

/* Headings */
h1 {
  color: var(--primary);
  margin-bottom: 10px;
}

h2 {
  color: var(--secondary);
  margin-bottom: 8px;
}

h3 {
  margin-bottom: 10px;
}

.subtitle {
  color: var(--text-muted);
  margin-bottom: 30px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 10px 24px;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 1em;
  font-weight: 600;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
  background: var(--input-bg);
  color: var(--text);
  position: relative;
  overflow: hidden;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white;
  border: none;
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--info), var(--secondary));
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

.btn-secondary {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  color: #334155;
  border-color: #cbd5e1;
}

.btn-secondary:hover:not(:disabled) {
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-color: #94a3b8;
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444, #b91c1c);
  color: white;
  border: none;
}

.btn-danger:hover:not(:disabled) {
  background: linear-gradient(135deg, #f87171, #ef4444);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-success {
  background: linear-gradient(135deg, #22c55e, #15803d);
  color: white;
  border: none;
}

.btn-success:hover:not(:disabled) {
  background: linear-gradient(135deg, #4ade80, #22c55e);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.btn-warning {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: white;
  border: none;
}

.btn-warning:hover:not(:disabled) {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-info {
  background-color: var(--info);
  color: white;
}

.btn-info:hover:not(:disabled) {
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

[data-theme="dark"] .btn-secondary {
  background: linear-gradient(135deg, #334155, #1e293b);
  color: #f8fafc;
  border-color: #475569;
}

[data-theme="dark"] .btn-secondary:hover:not(:disabled) {
  background: linear-gradient(135deg, #475569, #334155);
  border-color: #94a3b8;
}

.btn-grey {
  background-color: #616161;
  color: white;
}

.btn-grey:hover:not(:disabled) {
  background-color: #424242;
}

.btn:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-icon {
  background: none;
  border: none;
  color: white;
  font-size: 1.4em;
  cursor: pointer;
  padding: 4px 8px;
}

.btn-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: stretch;
}

.btn-group .btn {
  flex: 1;
  min-width: 120px;
}

/* Phase cards */
.phase-card {
  background: var(--card-bg);
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 20px;
  border-left: 4px solid var(--secondary);
  box-shadow: 0 2px 8px var(--shadow);
}

.phase-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

/* ============================================
   PRINT: Professional Report Layout
   ============================================ */
@media print {
  @page {
    margin: 2cm;
    size: portrait;
  }

  body {
    background: white !important;
    color: black !important;
    font-family: "Inter", -apple-system, serif !important;
    font-size: 11pt !important;
    line-height: 1.5 !important;
  }

  /* Hide UI noise */
  header, footer, nav, 
  .no-print, .btn, .btn-group,
  .tabs, .stepper-nav, .modal,
  .ad-slot, .donation-cta,
  .sidebar, .scenario-manager,
  .help-section {
    display: none !important;
  }

  /* Force layout to full width */
  .container, .stepper-layout, .stepper-content, 
  .content-section, .content-container, .results {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    box-shadow: none !important;
    border: none !important;
    background: none !important;
  }

  /* Show only results and charts */
  .step-panel {
    display: none !important;
  }
  #step-content-results {
    display: block !important;
  }

  /* Professional Report Header */
  #step-content-results::before {
    content: "Canadian Retirement Calculator - Projection Report";
    display: block;
    font-size: 18pt;
    font-weight: 700;
    margin-bottom: 0.5cm;
    padding-bottom: 0.2cm;
    border-bottom: 2px solid #333;
  }

  #step-content-results::after {
    content: "Visit retirementcalculator.ca to update your projection. Educational tool only. Does not constitute financial advice.";
    display: block;
    font-size: 9pt;
    color: #666;
    margin-top: 2cm;
    text-align: center;
    font-style: italic;
  }

  /* Optimize charts and boxes for print */
  .results-box, .tip-box, .summary-card {
    border: 1px solid #ddd !important;
    border-radius: 4px !important;
    margin-bottom: 1cm !important;
    page-break-inside: avoid !important;
    background: #f9f9f9 !important;
  }

  .charts-section {
    display: block !important;
    margin-top: 1cm !important;
  }

  .chart-container {
    page-break-inside: avoid !important;
    margin-bottom: 1.5cm !important;
    max-height: 4in !important;
  }

  h1, h2, h3 {
    color: black !important;
    page-break-after: avoid !important;
  }

  table {
    width: 100% !important;
    border-collapse: collapse !important;
  }

  th, td {
    border: 1px solid #ddd !important;
    padding: 8px !important;
    font-size: 9pt !important;
  }
}

/* Mobile Styles */
@media (max-width: 768px) {
  .container {
    padding: 15px 10px;
  }

.btn-icon:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 2px;
  border-radius: 4px;
}

.btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    width: 100%;
  }

  .chart-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .main-nav {
    padding: 10px 15px;
  }

  .nav-title {
    font-size: 0.95em;
  }

  .nav-actions {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
  }

  .mobile-nav-toggle .hamburger-bar {
    width: 100%;
    height: 3px;
    background-color: #ffffff;
    border-radius: 2px;
    transition: all var(--transition-speed) var(--transition-easing);
  }

  .mobile-nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed) var(--transition-easing);
    z-index: var(--z-index-overlay);
  }

  .mobile-nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-nav-panel {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: #2c3e50;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-speed) var(--transition-easing);
    z-index: var(--z-index-mobile-nav);
  }

  .mobile-nav-panel.open {
    max-height: 300px;
  }

  .mobile-nav-link {
    display: block;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.9em;
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s;
  }

  .mobile-nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
  }

  .mobile-lang-switcher {
    display: flex;
    gap: 4px;
    padding: 8px 20px;
  }
}

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

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* High Contrast */
@media (prefers-contrast: high) {
  :root {
    --border: #000000;
    --input-border: #000000;
  }

  [data-theme='dark'] {
    --border: #ffffff;
    --input-border: #ffffff;
  }
}