/* ==========================================================================
   INVOICEFLOW — DESIGN SYSTEM & CORE STYLES (style.css)
   Clean, modern, accessible SaaS aesthetic for financial/business tools.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Brand / Primary Palette */
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-200: #bfdbfe;
  --color-primary-300: #93c5fd;
  --color-primary-400: #60a5fa;
  --color-primary-500: #3b82f6;
  --color-primary-600: #2563eb; /* Primary Brand Blue */
  --color-primary-700: #1d4ed8; /* Hover Blue */
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;

  /* Neutral Slate Palette */
  --color-slate-50: #f8fafc;  /* Page background */
  --color-slate-100: #f1f5f9; /* Muted surface / borders */
  --color-slate-200: #e2e8f0; /* Default border */
  --color-slate-300: #cbd5e1; /* Strong border */
  --color-slate-400: #94a3b8; /* Muted text / icons */
  --color-slate-500: #64748b; /* Secondary text */
  --color-slate-600: #475569; /* Body text secondary */
  --color-slate-700: #334155; /* Headings secondary */
  --color-slate-800: #1e293b; /* Headings primary */
  --color-slate-900: #0f172a; /* Main text / deep charcoal */

  /* Semantic Feedback */
  --color-success-50: #ecfdf5;
  --color-success-600: #059669;
  --color-danger-50: #fef2f2;
  --color-danger-600: #dc2626;

  /* Surfaces & Pure Colors */
  --color-white: #ffffff;
  --color-black: #000000;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing Scale */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* Border Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows (Subtle, multi-layered) */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-paper: 0 12px 32px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.04);

  /* Layout */
  --container-max-width: 1240px;
  --container-narrow: 840px;
  --header-height: 72px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. Modern Reset & Base Elements
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-slate-50);
  color: var(--color-slate-900);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, optgroup, select, textarea {
  font-family: inherit;
  font-size: 100%;
  line-height: 1.15;
  margin: 0;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

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

/* Focus Outline for Accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary-600);
  outline-offset: 2px;
}

/* Reduced Motion for Accessibility (WCAG 2.1 Guideline 2.3) */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Skip link for screen readers */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-primary-600);
  color: var(--color-white);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: var(--font-weight-medium);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* --------------------------------------------------------------------------
   3. Layout Containers & Grid Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section-alt {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-slate-200);
  border-bottom: 1px solid var(--color-slate-200);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-12);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: 0.8125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-700);
  background-color: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-title {
  font-size: 2.25rem;
  font-weight: var(--font-weight-bold);
  line-height: 1.25;
  color: var(--color-slate-900);
  letter-spacing: -0.025em;
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-slate-600);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   4. Buttons & UI Elements
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.6875rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: var(--font-weight-semibold);
  line-height: 1.25;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-align: center;
  white-space: nowrap;
  user-select: none;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--color-primary-600);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-700);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

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

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-slate-800);
  border-color: var(--color-slate-300);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background-color: var(--color-slate-50);
  border-color: var(--color-slate-400);
  color: var(--color-slate-900);
}

.btn-sm {
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-md);
  color: var(--color-slate-600);
}

.btn-icon:hover {
  background-color: var(--color-slate-100);
  color: var(--color-slate-900);
}

/* --------------------------------------------------------------------------
   5. Global Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-slate-200);
  display: flex;
  align-items: center;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.3125rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  letter-spacing: -0.03em;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-800));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.logo-text span {
  color: var(--color-primary-600);
}

/* Desktop Nav Links */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-slate-600);
  padding: var(--space-2) 0;
  position: relative;
}

.nav-link:hover {
  color: var(--color-primary-600);
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary-600);
  border-radius: var(--radius-full);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Mobile Hamburger Toggle */
.mobile-nav-toggle {
  display: none;
  padding: var(--space-2);
  color: var(--color-slate-700);
  background: transparent;
  border-radius: var(--radius-sm);
}

.mobile-nav-toggle:hover {
  background-color: var(--color-slate-100);
}

/* Mobile Drawer Menu */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-nav-drawer.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer-content {
  background-color: var(--color-white);
  padding: var(--space-6) var(--space-4) var(--space-8);
  border-bottom: 1px solid var(--color-slate-200);
  box-shadow: var(--shadow-xl);
  transform: translateY(-10px);
  transition: transform var(--transition-normal);
}

.mobile-nav-drawer.is-open .mobile-drawer-content {
  transform: translateY(0);
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-size: 1.0625rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-slate-800);
  border-radius: var(--radius-md);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--color-primary-50);
  color: var(--color-primary-700);
}

/* --------------------------------------------------------------------------
   6. Homepage Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: var(--space-12);
  padding-bottom: var(--space-16);
  background: radial-gradient(circle at 50% 0%, #f0f7ff 0%, #f8fafc 70%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-12);
  align-items: center;
}

.hero-content {
  max-width: 580px;
}

.hero-trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.375rem 0.875rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-slate-700);
  box-shadow: var(--shadow-xs);
  margin-bottom: var(--space-5);
}

.hero-trust-badge .dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success-600);
  border-radius: 50%;
  display: inline-block;
}

.hero-title {
  font-size: 3.125rem;
  font-weight: var(--font-weight-bold);
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--color-slate-900);
  margin-bottom: var(--space-5);
}

.hero-subtitle {
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--color-slate-600);
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}

.hero-guarantee {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: 0.875rem;
  color: var(--color-slate-500);
}

.hero-guarantee-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Hero Visual Invoice Mockup (Pure CSS) */
.hero-visual {
  position: relative;
  perspective: 1000px;
}

.hero-mockup-wrapper {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-paper);
  padding: var(--space-8);
  font-size: 0.8125rem;
  color: var(--color-slate-700);
  transform: rotate(0.5deg);
  transition: transform var(--transition-normal);
  position: relative;
}

.hero-mockup-wrapper:hover {
  transform: rotate(0deg) translateY(-4px);
}

.mockup-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 2px solid var(--color-slate-100);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-5);
}

.mockup-company-title {
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-1);
}

.mockup-meta {
  text-align: right;
}

.mockup-invoice-tag {
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-600);
  letter-spacing: 0.05em;
}

.mockup-meta-row {
  color: var(--color-slate-500);
  font-size: 0.75rem;
  margin-top: 2px;
}

.mockup-parties {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.mockup-party-label {
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  color: var(--color-slate-400);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.mockup-party-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-slate-900);
}

.mockup-table {
  width: 100%;
  margin-bottom: var(--space-5);
}

.mockup-table th {
  text-align: left;
  padding: var(--space-2) 0;
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  color: var(--color-slate-400);
  border-bottom: 1px solid var(--color-slate-200);
}

.mockup-table th:last-child,
.mockup-table td:last-child {
  text-align: right;
}

.mockup-table td {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-slate-100);
}

.mockup-totals {
  width: 200px;
  margin-left: auto;
}

.mockup-total-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 0.75rem;
  color: var(--color-slate-600);
}

.mockup-total-grand {
  font-size: 0.9375rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  border-top: 1px solid var(--color-slate-200);
  padding-top: var(--space-2);
  margin-top: var(--space-2);
}

.mockup-floating-badge {
  position: absolute;
  bottom: -16px;
  right: 24px;
  background-color: var(--color-slate-900);
  color: var(--color-white);
  padding: 0.4375rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   7. Benefits Section (4 Cards)
   -------------------------------------------------------------------------- */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.benefit-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.benefit-card:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.benefit-icon-box {
  width: 44px;
  height: 44px;
  background-color: var(--color-primary-50);
  color: var(--color-primary-600);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.benefit-title {
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-2);
}

.benefit-text {
  font-size: 0.9375rem;
  color: var(--color-slate-600);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   8. How It Works Section (4 Steps)
   -------------------------------------------------------------------------- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  position: relative;
}

.step-card {
  position: relative;
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-600);
  background-color: var(--color-primary-50);
  display: inline-block;
  align-self: flex-start;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}

.step-title {
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-2);
}

.step-text {
  font-size: 0.9375rem;
  color: var(--color-slate-600);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   9. Template Showcase Section (5 Templates)
   -------------------------------------------------------------------------- */
.templates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.templates-grid > :nth-child(4),
.templates-grid > :nth-child(5) {
  grid-column: span 1;
}

.template-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.template-card:hover {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.template-preview-frame {
  height: 200px;
  background-color: var(--color-slate-100);
  padding: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-slate-200);
  overflow: hidden;
}

.mini-preview {
  width: 150px;
  height: 190px;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  border-radius: 2px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 5px;
  line-height: 1;
  pointer-events: none;
}

/* Template Mini Styles */
.mini-classic {
  border-top: 3px solid #1e3a8a;
}
.mini-classic .mini-bar { height: 3px; background: #1e3a8a; margin-bottom: 4px; }
.mini-classic .mini-line { height: 2px; background: #cbd5e1; margin-bottom: 2px; width: 60%; }

.mini-modern {
  border-left: 4px solid var(--color-primary-600);
}
.mini-modern .mini-head { height: 12px; background: var(--color-primary-50); border-radius: 2px; margin-bottom: 4px; }

.mini-minimal {
  border: 1px solid #e2e8f0;
}
.mini-minimal .mini-line { height: 2px; background: #94a3b8; margin-bottom: 3px; }

.mini-corporate {
  border-top: 8px solid #0f172a;
}
.mini-corporate .mini-head { height: 8px; background: #0f172a; margin-bottom: 4px; }

.mini-elegant {
  border: 1px solid #e5e5e5;
  font-family: Georgia, serif;
}
.mini-elegant .mini-head { border-bottom: 1px solid #71717a; height: 8px; margin-bottom: 4px; }

.template-info {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.template-name {
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-1);
}

.template-desc {
  font-size: 0.875rem;
  color: var(--color-slate-600);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

/* --------------------------------------------------------------------------
   10. SEO Content Section
   -------------------------------------------------------------------------- */
.seo-content-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-xs);
}

.seo-lead {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-slate-700);
  margin-bottom: var(--space-6);
}

.seo-text-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.seo-text-columns p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-slate-600);
  margin-bottom: var(--space-4);
}

.seo-text-columns p:last-child {
  margin-bottom: 0;
}

.seo-text-columns strong {
  color: var(--color-slate-900);
}

.seo-audience-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-slate-200);
}

.audience-chip {
  background-color: var(--color-slate-100);
  color: var(--color-slate-700);
  font-size: 0.8125rem;
  font-weight: var(--font-weight-medium);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   11. Accessible FAQ Accordion Section
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-slate-300);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  font-size: 1.0625rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-slate-900);
  text-align: left;
  background: transparent;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary-600);
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--color-slate-400);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
  color: var(--color-primary-600);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 var(--space-6);
  color: var(--color-slate-600);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.faq-item.is-open .faq-answer {
  max-height: 800px;
  padding: 0 var(--space-6) var(--space-6);
}

/* --------------------------------------------------------------------------
   12. Global Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-slate-200);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-slate-500);
  line-height: 1.6;
  max-width: 280px;
}

.footer-column-title {
  font-size: 0.8125rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-900);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  font-size: 0.875rem;
  color: var(--color-slate-600);
}

.footer-link:hover {
  color: var(--color-primary-600);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-slate-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--color-slate-500);
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* --------------------------------------------------------------------------
   13. Toast / Notification System
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  background-color: var(--color-slate-900);
  color: var(--color-white);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  pointer-events: auto;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   14. Content Pages, Guides, Legal Prose & Contact Styles
   -------------------------------------------------------------------------- */
.prose-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-10);
  box-shadow: var(--shadow-xs);
  color: var(--color-slate-700);
  line-height: 1.8;
  font-size: 1rem;
}

@media (max-width: 767px) {
  .prose-card {
    padding: var(--space-5) var(--space-5);
  }
}

.prose-card h2 {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
  line-height: 1.3;
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-slate-100);
}

.prose-card h2:first-child {
  margin-top: 0;
}

.prose-card h3 {
  font-size: 1.2rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-slate-900);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.prose-card p {
  margin-bottom: var(--space-4);
  color: var(--color-slate-700);
}

.prose-card ul,
.prose-card ol {
  margin-left: var(--space-6);
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.prose-card li strong {
  color: var(--color-slate-900);
}

.prose-card code {
  background-color: var(--color-slate-100);
  color: var(--color-primary-700);
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-slate-200);
}

/* Callout Boxes */
.callout-box {
  background-color: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  border-left: 4px solid var(--color-primary-600);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-6) 0;
  font-size: 0.9375rem;
  color: var(--color-primary-950);
  line-height: 1.6;
}

.callout-box strong {
  color: var(--color-primary-900);
}

.callout-warning {
  background-color: #fffbeb;
  border-color: #fde68a;
  border-left-color: #d97706;
  color: #78350f;
}

.callout-warning strong {
  color: #92400e;
}

.callout-tip {
  background-color: #f0fdf4;
  border-color: #bbf7d0;
  border-left-color: #16a34a;
  color: #14532d;
}

.callout-tip strong {
  color: #166534;
}

/* Common Mistakes Grid */
.mistakes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.mistake-item {
  background-color: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border-top: 3px solid #ef4444;
}

.mistake-title {
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.mistake-desc {
  font-size: 0.875rem;
  color: var(--color-slate-600);
  line-height: 1.6;
}

/* Numbering Grid */
.numbering-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.numbering-card {
  background-color: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.numbering-title {
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  font-size: 0.9375rem;
  margin-bottom: var(--space-1);
}

.numbering-example {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-primary-600);
  background-color: var(--color-white);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-slate-200);
  display: inline-block;
  margin: var(--space-2) 0;
}

/* Contact Grid */
.contact-layout {
  display: grid;
  grid-template-columns: 1.8fr 1.2fr;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

.contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-info-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-xs);
}

.contact-info-card h3 {
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-2);
}

.contact-info-card p {
  font-size: 0.875rem;
  color: var(--color-slate-600);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}

/* Content Page CTA Banner */
.content-cta-banner {
  background-color: var(--color-slate-900);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  margin-top: var(--space-12);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.content-cta-title {
  font-size: 1.75rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  line-height: 1.2;
}

.content-cta-desc {
  font-size: 1rem;
  color: var(--color-slate-300);
  max-width: 540px;
  line-height: 1.6;
}

/* ==========================================================================
   15. BREADCRUMBS & SEO COMPONENTS
   ========================================================================== */
.breadcrumb-nav {
  margin-bottom: var(--space-6);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-slate-500);
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
}

.breadcrumb-item a {
  color: var(--color-slate-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
  color: var(--color-primary-600);
  text-decoration: underline;
}

.breadcrumb-separator {
  margin-left: var(--space-2);
  color: var(--color-slate-400);
  user-select: none;
}

.breadcrumb-current {
  color: var(--color-slate-900);
  font-weight: var(--font-weight-medium);
}

/* Accessibility & SEO utility for screen readers / semantic headings */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ==========================================================================
   16. BLOG & ARTICLE READING SYSTEM
   ========================================================================== */

/* Blog Hero */
.blog-hero {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-10) auto;
}

.blog-eyebrow {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary-600);
  background-color: var(--color-primary-50);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.blog-hero-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  line-height: 1.2;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.blog-hero-sub {
  font-size: var(--font-size-lg);
  color: var(--color-slate-600);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

/* Blog Toolbar (Search & Filter Bar) */
.blog-toolbar {
  margin-bottom: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.blog-search-wrap {
  position: relative;
  max-width: 540px;
  width: 100%;
  margin: 0 auto;
}

.blog-search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-slate-400);
  pointer-events: none;
}

.blog-search-input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  font-size: var(--font-size-base);
  font-family: inherit;
  border: 1px solid var(--color-slate-300);
  border-radius: var(--radius-full);
  background-color: var(--color-white);
  color: var(--color-slate-900);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
}

.blog-search-input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.blog-search-input::placeholder {
  color: var(--color-slate-400);
}

/* Category Filter Bar */
.blog-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  align-items: center;
}

.blog-filter-btn {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-slate-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.blog-filter-btn:hover {
  background-color: var(--color-slate-50);
  color: var(--color-slate-900);
  border-color: var(--color-slate-300);
}

.blog-filter-btn.active {
  background-color: var(--color-primary-600);
  color: var(--color-white);
  border-color: var(--color-primary-600);
  box-shadow: var(--shadow-xs);
}

/* Featured Article Card */
.blog-featured-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-8);
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  margin-bottom: var(--space-12);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  align-items: center;
}

.blog-featured-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-slate-300);
}

.featured-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--color-primary-50);
  color: var(--color-primary-700);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
}

.featured-title {
  font-size: clamp(1.4rem, 2.2vw, 1.875rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  line-height: 1.3;
  margin-bottom: var(--space-3);
}

.featured-title a {
  color: inherit;
  text-decoration: none;
}

.featured-title a:hover {
  color: var(--color-primary-600);
}

.featured-excerpt {
  font-size: var(--font-size-base);
  color: var(--color-slate-600);
  line-height: 1.6;
  margin-bottom: var(--space-5);
}

.featured-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-slate-500);
  margin-bottom: var(--space-6);
}

.featured-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  position: relative;
  overflow: hidden;
}

@media (max-width: 900px) {
  .blog-featured-card {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    padding: var(--space-6);
  }
}

/* Blog Cards Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.blog-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

.blog-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-300);
}

.blog-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.blog-card-category {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-600);
  background-color: var(--color-primary-50);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-card-time {
  font-size: var(--font-size-xs);
  color: var(--color-slate-400);
}

.blog-card-title {
  font-size: 1.2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  line-height: 1.35;
  margin-bottom: var(--space-3);
}

.blog-card-title a {
  color: inherit;
  text-decoration: none;
}

.blog-card-title a:hover {
  color: var(--color-primary-600);
}

.blog-card-excerpt {
  font-size: 0.875rem;
  color: var(--color-slate-600);
  line-height: 1.6;
  margin-bottom: var(--space-5);
  flex-grow: 1;
}

.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-slate-100);
  font-size: var(--font-size-xs);
  color: var(--color-slate-500);
}

.blog-card-link {
  color: var(--color-primary-600);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.blog-card-link:hover {
  color: var(--color-primary-700);
  text-decoration: underline;
}

/* Empty State */
.blog-empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  background-color: var(--color-slate-50);
  border: 1px dashed var(--color-slate-300);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-12);
}

.empty-state-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-white);
  color: var(--color-slate-400);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-xs);
}

.empty-state-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-2);
}

.empty-state-text {
  font-size: var(--font-size-base);
  color: var(--color-slate-600);
  margin-bottom: var(--space-6);
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   ARTICLE PAGE READING SYSTEM
   ========================================================================== */
.container-article {
  max-width: 840px;
  margin-left: auto;
  margin-right: auto;
}

.article-header {
  margin-bottom: var(--space-8);
}

.article-category-badge {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary-700);
  background-color: var(--color-primary-50);
  padding: 4px 10px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
}

.article-title {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  line-height: 1.25;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-slate-200);
  border-bottom: 1px solid var(--color-slate-200);
  font-size: var(--font-size-sm);
  color: var(--color-slate-600);
}

.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Table of Contents */
.article-toc {
  background-color: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-left: 4px solid var(--color-primary-600);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-8);
}

.toc-title {
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.toc-list li {
  font-size: 0.9375rem;
}

.toc-list a {
  color: var(--color-slate-700);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.toc-list a:hover {
  color: var(--color-primary-600);
  text-decoration: underline;
}

/* Article Body Typography & Components */
.article-body {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-slate-800);
}

.article-body p {
  margin-bottom: var(--space-5);
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  line-height: 1.3;
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-slate-200);
  scroll-margin-top: 80px;
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  line-height: 1.4;
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  scroll-margin-top: 80px;
}

.article-body ul,
.article-body ol {
  margin: var(--space-4) 0 var(--space-6) var(--space-6);
  padding: 0;
}

.article-body li {
  margin-bottom: var(--space-2);
  line-height: 1.7;
}

.article-body strong {
  color: var(--color-slate-900);
}

.article-body a {
  color: var(--color-primary-600);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.article-body a:hover {
  color: var(--color-primary-800);
}

/* Responsive Table in Articles */
.article-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--space-6) 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-slate-200);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  text-align: left;
  background-color: var(--color-white);
}

.article-table th {
  background-color: var(--color-slate-100);
  color: var(--color-slate-900);
  font-weight: var(--font-weight-bold);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-slate-200);
  white-space: nowrap;
}

.article-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-slate-200);
  color: var(--color-slate-700);
  vertical-align: top;
}

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

.article-table tr:nth-child(even) td {
  background-color: var(--color-slate-50);
}

/* Calculation & Example Breakdown Box */
.example-box {
  background-color: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
}

.example-box-header {
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  font-size: 0.9375rem;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Key Takeaways Box */
.takeaways-box {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-8) 0;
}

.takeaways-title {
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  color: #166534;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.takeaways-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.takeaways-list li {
  position: relative;
  padding-left: var(--space-6);
  color: #15803d;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.takeaways-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: var(--font-weight-bold);
  color: #16a34a;
}

/* In-Article CTA Banner */
.article-cta-box {
  background: linear-gradient(135deg, var(--color-primary-900) 0%, #1e3a8a 100%);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  margin: var(--space-10) 0;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.article-cta-title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.article-cta-desc {
  color: var(--color-primary-100);
  font-size: 1rem;
  max-width: 540px;
  margin: 0 auto var(--space-6) auto;
  line-height: 1.6;
}

/* Related Articles Section */
.related-articles-section {
  margin-top: var(--space-12);
  padding-top: var(--space-10);
  border-top: 2px solid var(--color-slate-200);
}

.related-title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-slate-900);
  margin-bottom: var(--space-6);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-6);
}