/* ==========================================================================
   JD Butler - WCAG Accessibility Specialist
   CSS Custom Properties & Base Styles
   All color combinations meet WCAG AA contrast ratios (4.5:1 normal, 3:1 large)
   ========================================================================== */

:root {
  /* Primary palette */
  --color-primary: #1a365d;
  --color-primary-light: #2a4a7f;
  --color-primary-dark: #0f2440;
  --color-accent: #0d7c6e;
  --color-accent-hover: #0a6258;
  --color-accent-light: #e6f7f5;

  /* Neutral palette */
  --color-text: #1a202c;
  --color-text-light: #4a5568;
  --color-text-inverse: #ffffff;
  --color-bg: #ffffff;
  --color-bg-alt: #f7fafc;
  --color-bg-dark: #1a202c;
  --color-border: #8a94a6;
  --color-border-light: #e2e8f0;

  /* Feedback colors */
  --color-success: #276749;
  --color-error: #c53030;
  --color-warning: #c05621;
  --color-info: #2b6cb0;

  /* Typography */
  --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --max-width: 72rem;
  --max-width-narrow: 48rem;

  /* Borders */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Focus */
  --focus-ring: 0 0 0 3px rgba(13, 124, 110, 0.5);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem; /* Account for sticky header so focused elements aren't obscured (WCAG 2.2 2.4.11) */
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* ==========================================================================
   Skip Link (Accessibility)
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-sm) var(--space-lg);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-weight: 600;
  z-index: 1000;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==========================================================================
   Focus Styles
   ========================================================================== */

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
  outline: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-top: 0;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: var(--space-lg); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); margin-bottom: var(--space-md); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); margin-bottom: var(--space-md); }
h4 { font-size: 1.25rem; margin-bottom: var(--space-sm); }

p {
  margin-top: 0;
  margin-bottom: var(--space-md);
  max-width: 70ch;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

ul, ol {
  padding-left: var(--space-xl);
  margin-top: 0;
  margin-bottom: var(--space-md);
}

li {
  margin-bottom: var(--space-xs);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

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

.section {
  padding-block: var(--space-4xl);
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-text-inverse);
}

.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
}

.grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
}

.text-center { text-align: center; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  background-color: var(--color-bg);
  border-bottom: 2px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-md);
  flex-wrap: nowrap;
  gap: var(--space-md);
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.site-logo:hover {
  opacity: 0.85;
}

.site-logo-img {
  width: 384px;
  height: 108px;
  max-width: none;
  max-height: none;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.site-logo svg {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-primary);
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.main-nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-xs);
  align-items: center;
}

.main-nav a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  background-color: var(--color-accent-light);
  color: var(--color-accent);
}

.main-nav .nav-cta {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  font-weight: 600;
}

.main-nav .nav-cta:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-text-inverse);
}

@media (max-width: 768px) {
  .site-header .container {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    width: 100%;
    order: 3;
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .main-nav a {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
  }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  color: var(--color-text-inverse);
  padding-block: var(--space-4xl);
  text-align: center;
}

.hero h1 {
  color: var(--color-text-inverse);
  max-width: 50rem;
  margin-inline: auto;
}

.hero p {
  font-size: 1.25rem;
  max-width: 40rem;
  margin-inline: auto;
  opacity: 0.95;
}

.hero .btn {
  margin-top: var(--space-lg);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
}

.hero-stat strong {
  display: block;
  font-size: 2rem;
  font-weight: 700;
}

.hero-stat span {
  font-size: 0.875rem;
  opacity: 0.85;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
  min-width: 200px;
  text-align: center;
  line-height: 1.2;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-text-inverse);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text-inverse);
  border-color: var(--color-text-inverse);
}

.btn--secondary:hover {
  background-color: var(--color-text-inverse);
  color: var(--color-primary);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline:hover {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn--dark-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--dark-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn--small {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  min-height: 40px;
  min-width: auto;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card--featured {
  border-color: var(--color-accent);
  border-width: 2px;
  position: relative;
}

.card--featured::before {
  content: attr(data-badge);
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  padding: 0.25rem 1rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card h3 {
  color: var(--color-primary);
}

.card-icon {
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.card-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.card-price span {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-light);
}

.card-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg);
}

.card-list li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
  padding-left: 1.5rem;
  position: relative;
}

.card-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}



/* ==========================================================================
   FAQ Accordion
   ========================================================================== */

.faq-list {
  max-width: var(--max-width-narrow);
  margin-inline: auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border-light);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0;
  background: none;
  border: none;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
  gap: var(--space-md);
  min-height: 48px;
}

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

.faq-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  transition: transform var(--transition-base);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding-bottom: var(--space-lg);
  color: var(--color-text-light);
  line-height: 1.7;
}

.faq-answer p {
  max-width: none;
}

/* ==========================================================================
   Contact Form
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  color: var(--color-text);
}

.form-group .required {
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
}

.form-textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-accent);
  box-shadow: var(--focus-ring);
  outline: none;
}

.form-hint {
  display: block;
  margin-top: var(--space-xs);
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.form-error {
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: var(--space-xs);
}

/* ==========================================================================
   Email Signup
   ========================================================================== */

.signup-form {
  display: flex;
  gap: var(--space-sm);
  max-width: 32rem;
  margin-inline: auto;
  flex-wrap: wrap;
}

.signup-form .form-input {
  flex: 1;
  min-width: 12rem;
}

.signup-micro {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: var(--space-sm);
}

.section--dark .signup-micro {
  color: rgba(255, 255, 255, 0.7);
}

/* ==========================================================================
   Process Steps
   ========================================================================== */

.process-steps {
  counter-reset: step;
}

.process-step {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  margin-bottom: var(--space-2xl);
}

.process-step::before {
  counter-increment: step;
  content: counter(step);
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.25rem;
}

/* ==========================================================================
   WCAG Levels Badge
   ========================================================================== */

.wcag-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.wcag-badge--aa {
  background-color: #276749;
  color: #fff;
}

.wcag-badge--aaa {
  background-color: var(--color-primary);
  color: #fff;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.85);
  padding-block: var(--space-3xl) var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-col h4 {
  color: var(--color-text-inverse);
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: var(--space-sm);
}

.footer-col a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: inline-block;
  padding-block: 0.125rem; /* Ensure 24px min target height with line-height (WCAG 2.2 2.5.8) */
}

.footer-col a:hover {
  color: var(--color-text-inverse);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--color-text-inverse);
}

/* ==========================================================================
   Blog List
   ========================================================================== */

.blog-card {
  display: flex;
  flex-direction: column;
}

.blog-card time {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.blog-card h3 {
  margin-bottom: var(--space-sm);
}

.blog-card h3 a {
  color: var(--color-primary);
  text-decoration: none;
}

.blog-card h3 a:hover {
  text-decoration: underline;
}

.blog-card p {
  color: var(--color-text-light);
  flex-grow: 1;
}

.blog-tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-sm);
}

.blog-tag {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
}

/* ==========================================================================
   About Page
   ========================================================================== */

.about-intro {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-2xl);
  align-items: start;
}

@media (max-width: 768px) {
  .about-intro {
    grid-template-columns: 1fr;
  }
}

.about-photo {
  width: 100%;
  max-width: 18rem;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-alt);
  border: 3px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.875rem;
}

.credentials-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
  margin-top: var(--space-lg);
}

.credentials-list li {
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
}

/* ==========================================================================
   Services Detail
   ========================================================================== */

.service-detail {
  padding-bottom: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border-light);
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail h3 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* ==========================================================================
   CTA Banner
   ========================================================================== */

.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-text-inverse);
  padding-block: var(--space-3xl);
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-text-inverse);
}

.cta-banner p {
  margin-inline: auto;
  opacity: 0.95;
  font-size: 1.125rem;
}

/* ==========================================================================
   Guarantee Section
   ========================================================================== */

.guarantee {
  text-align: center;
  padding: var(--space-2xl);
  background-color: var(--color-accent-light);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  max-width: var(--max-width-narrow);
  margin-inline: auto;
}

.guarantee h3 {
  color: var(--color-accent);
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumb {
  padding: var(--space-md) 0;
  font-size: 0.875rem;
}

.breadcrumb ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.breadcrumb li::after {
  content: "/";
  margin-left: var(--space-xs);
  color: var(--color-text-light);
}

.breadcrumb li:last-child::after {
  content: none;
}

.breadcrumb a {
  color: var(--color-text-light);
}

.breadcrumb [aria-current] {
  color: var(--color-text);
  font-weight: 600;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .site-header,
  .site-footer,
  .nav-toggle,
  .btn,
  .signup-form,
  .skip-link {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
    font-size: 12pt;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }

  .hero {
    background: #f0f0f0 !important;
    color: #000 !important;
  }

  .hero h1 {
    color: #000 !important;
  }

  .a11y-toolbar { display: none !important; }
}

/* ==========================================================================
   Accessibility Dialog (Full Featured)
   ========================================================================== */

.a11y-floating-btn {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 991;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border: 2px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: all 0.3s;
}

.a11y-floating-btn:hover,
.a11y-floating-btn:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #fff;
  transform: scale(1.1);
}

.a11y-dialog { border: none; padding: 0; max-width: none; max-height: none; width: 100vw; height: 100vh; background: transparent; }
.a11y-dialog::backdrop { background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); }

.a11y-dialog-inner {
  position: fixed;
  right: 0;
  top: 0;
  width: 380px;
  max-width: 100%;
  height: 100%;
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
  overflow-y: auto;
  box-shadow: -8px 0 24px rgba(0,0,0,0.15);
}

.a11y-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
}

.a11y-dialog-header h2 {
  font-size: 1rem;
  margin: 0;
  color: var(--color-primary);
}

.a11y-dialog-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-light);
  padding: 0.375rem;
  border-radius: var(--radius-sm);
  display: flex;
  min-width: 36px;
  min-height: 36px;
  align-items: center;
  justify-content: center;
}

.a11y-dialog-close:hover,
.a11y-dialog-close:focus-visible {
  color: var(--color-text);
  background: var(--color-bg-alt);
}

.a11y-dialog-body { padding: 1rem 1.5rem; }

.a11y-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.a11y-option-label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
}

.a11y-option--reset { border-bottom: none; justify-content: center; padding-top: 1.25rem; }

/* Toggle Switch */
.a11y-toggle {
  width: 52px;
  height: 28px;
  background: var(--color-bg-alt);
  border: 2px solid var(--color-border);
  border-radius: 14px;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: background 0.3s, border-color 0.3s;
}

.a11y-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--color-text-light);
  border-radius: 50%;
  transition: left 0.3s, background 0.3s;
}

.a11y-toggle[aria-checked="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.a11y-toggle[aria-checked="true"] .a11y-toggle-thumb {
  left: 26px;
  background: #fff;
}

/* Text Size Buttons */
.a11y-size-btns {
  display: flex;
  gap: 0.375rem;
}

.a11y-size-btn {
  width: 36px;
  height: 36px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 700;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.a11y-size-btn:nth-child(1) { font-size: 0.7rem; }
.a11y-size-btn:nth-child(2) { font-size: 0.85rem; }
.a11y-size-btn:nth-child(3) { font-size: 1rem; }
.a11y-size-btn:nth-child(4) { font-size: 1.15rem; }

.a11y-size-btn:hover { border-color: var(--color-accent); }
.a11y-size-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.a11y-reset-btn {
  background: none;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-light);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.5rem 1.5rem;
  transition: all 0.2s;
}

.a11y-reset-btn:hover { border-color: var(--color-error); color: var(--color-error); }

.a11y-scroll-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: none;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.375rem 0.875rem;
  transition: all 0.2s;
  min-height: 36px;
}

.a11y-scroll-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }

.a11y-statement {
  padding-top: 1rem;
  margin-top: 0.5rem;
  border-top: 1px solid var(--color-border-light);
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.a11y-statement p { margin: 0; max-width: none; }

/* ── Reading Guide ── */
.reading-guide {
  position: fixed;
  left: 0;
  right: 0;
  height: 40px;
  background: rgba(13, 124, 110, 0.08);
  border-top: 1px solid rgba(13, 124, 110, 0.2);
  border-bottom: 1px solid rgba(13, 124, 110, 0.2);
  z-index: 9998;
  pointer-events: none;
  display: none;
  transition: top 0.05s linear;
}

.reading-guide-active .reading-guide { display: block; }

/* ── Link Highlighting ── */
.highlight-links a {
  outline: 2px solid var(--color-accent) !important;
  outline-offset: 2px !important;
  text-decoration: underline !important;
}

/* ── Reduce Motion ── */
.reduce-motion *,
.reduce-motion *::before,
.reduce-motion *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
}

/* ==========================================================================
   Floating Contact Button & Panel
   ========================================================================== */

/* ── Right-side floating button stack ── */
.floating-btn-stack {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 993;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 12px;
}

.floating-btn {
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.floating-btn:hover,
.floating-btn:focus-visible {
  transform: scale(1.1);
}

/* Contact / message button — bottom of stack (primary action) */
.floating-contact-btn {
  background: var(--color-accent);
  color: #fff;
  width: 52px;
  height: 52px;
  box-shadow: 0 4px 20px rgba(13,124,110,0.4);
}

.floating-contact-btn:hover,
.floating-contact-btn:focus-visible {
  background: var(--color-accent-hover);
}

.floating-contact-btn.fc-active {
  background: var(--color-primary);
  color: #fff;
  border: 2px solid var(--color-border);
}

/* Scroll buttons */
.floating-scroll-btn {
  background: var(--color-primary);
  color: #fff;
  width: 40px;
  height: 40px;
}

.floating-scroll-btn:hover,
.floating-scroll-btn:focus-visible {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.floating-scroll-top { opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.floating-scroll-top.is-visible { opacity: 1; pointer-events: auto; }

.floating-contact-panel {
  position: fixed;
  bottom: 0;
  right: 0;
  z-index: 995;
  width: 400px;
  max-width: 100%;
  height: 100vh;
  height: 100dvh;
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  box-shadow: -8px 0 24px rgba(0,0,0,0.15);
}

.floating-contact-panel.fc-open { transform: translateX(0); }

.fc-panel-inner { padding: 1.5rem; }
.fc-panel-header { margin-bottom: 1.5rem; }
.fc-panel-header h3 { margin-bottom: 0.25rem; }

.fc-panel-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--color-surface, #f0f0f0);
  color: var(--color-text);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s ease;
}

.fc-panel-close:hover,
.fc-panel-close:focus-visible {
  background: var(--color-border, #ddd);
}

.fc-overlay {
  position: fixed;
  inset: 0;
  z-index: 994;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.fc-overlay.fc-open {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 480px) {
  .a11y-floating-btn { width: 42px; height: 42px; bottom: 16px; left: 16px; }
  .a11y-dialog-inner { width: 100%; }
  .floating-btn-stack { bottom: 16px; right: 16px; gap: 8px; }
  .floating-contact-btn { width: 48px; height: 48px; }
  .floating-scroll-btn { width: 36px; height: 36px; }
  .floating-contact-panel {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    border-left: none;
  }
  .fc-panel-inner { padding: 1rem; }
  .fc-panel-inner .form-textarea { rows: 2; }
  .fc-panel-inner .btn { padding: 0.75rem; font-size: 1rem; }
}

/* ==========================================================================
   Cookie Consent Banner
   ========================================================================== */

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.9);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.2);
}

.cookie-banner p { margin: 0; max-width: none; }
.cookie-banner a { color: var(--color-accent); }

.cookie-banner .btn--small {
  min-width: auto;
  padding: 0.375rem 1rem;
  font-size: 0.75rem;
}

.cookie-banner-hidden { display: none; }

/* ==========================================================================
   Dark Mode
   ========================================================================== */

.dark-mode {
  --color-bg: #1a202c;
  --color-bg-alt: #2d3748;
  --color-bg-dark: #0f1318;
  --color-text: #e2e8f0;
  --color-text-light: #a0aec0;
  --color-text-inverse: #1a202c;
  --color-border: #4a5568;
  --color-border-light: #2d3748;
  --color-primary: #90cdf4;
  --color-primary-light: #bee3f8;
  --color-primary-dark: #63b3ed;
  --color-accent-light: #0d3331;
}

.dark-mode .site-header { background-color: #1a202c; border-bottom-color: #2d3748; }
.dark-mode .site-logo { color: #90cdf4; }
.dark-mode .site-logo-img { filter: brightness(1.8) contrast(0.9); }
.dark-mode .main-nav a { color: #e2e8f0; }
.dark-mode .main-nav a:hover,
.dark-mode .main-nav a[aria-current="page"] { background: #2d3748; color: var(--color-accent); }
.dark-mode .main-nav .nav-cta { background: var(--color-accent); color: #fff; }
.dark-mode .main-nav .nav-cta:hover { background: var(--color-accent-hover); }

.dark-mode .card { background: #2d3748; border-color: #4a5568; }
.dark-mode .card h3 { color: #90cdf4; }
.dark-mode .card--featured { border-color: var(--color-accent); }


.dark-mode .faq-question { color: #e2e8f0; }
.dark-mode .faq-question:hover { color: var(--color-accent); }
.dark-mode .faq-answer { color: #a0aec0; }

.dark-mode .form-input, .dark-mode .form-textarea, .dark-mode .form-select {
  background: #2d3748; border-color: #4a5568; color: #e2e8f0;
}

.dark-mode .guarantee { background: #0d3331; border-color: var(--color-accent); }
.dark-mode .guarantee h3 { color: var(--color-accent); }
.dark-mode .breadcrumb a { color: #a0aec0; }
.dark-mode .breadcrumb [aria-current] { color: #e2e8f0; }
.dark-mode .blog-tag { background: #0d3331; color: var(--color-accent); }
.dark-mode .nav-toggle { border-color: #90cdf4; color: #90cdf4; }
.dark-mode .skip-link { background: #90cdf4; color: #1a202c; }

.dark-mode .a11y-dialog-inner { background: #2d3748; border-color: #4a5568; }
.dark-mode .a11y-dialog-header h2 { color: #90cdf4; }
.dark-mode .a11y-toggle { background: #4a5568; border-color: #4a5568; }
.dark-mode .a11y-size-btn { background: #2d3748; border-color: #4a5568; color: #e2e8f0; }
.dark-mode .a11y-reset-btn { color: #a0aec0; border-color: #4a5568; }
.dark-mode .a11y-floating-btn { background: #2d3748; border-color: #4a5568; }

.dark-mode .floating-contact-panel { background: #2d3748; border-color: #4a5568; }
.dark-mode .fc-panel-header h3 { color: #90cdf4; }
.dark-mode .fc-panel-close { background: #4a5568; color: #e2e8f0; }
.dark-mode .fc-panel-close:hover,
.dark-mode .fc-panel-close:focus-visible { background: #718096; }
.dark-mode .floating-scroll-btn { background: #4a5568; color: #e2e8f0; }
.dark-mode .floating-scroll-btn:hover { background: #718096; }

.dark-mode .cookie-banner { background: #0f1318; }

/* ==========================================================================
   High Contrast Mode
   ========================================================================== */

.high-contrast {
  --color-text: #000000;
  --color-text-light: #333333;
  --color-bg: #ffffff;
  --color-bg-alt: #f0f0f0;
  --color-primary: #00008b;
  --color-accent: #006600;
  --color-accent-hover: #004d00;
  --color-border: #000000;
  --color-border-light: #666666;
}

.high-contrast a { text-decoration-thickness: 2px; }
.high-contrast .card { border-width: 2px; }
.high-contrast .btn { border-width: 3px; }
.high-contrast :focus-visible { outline-width: 4px; outline-color: #000; }

.dark-mode.high-contrast {
  --color-text: #ffffff;
  --color-text-light: #cccccc;
  --color-bg: #000000;
  --color-bg-alt: #1a1a1a;
  --color-primary: #6db3f2;
  --color-accent: #00cc00;
  --color-accent-hover: #00ff00;
  --color-border: #ffffff;
  --color-border-light: #888888;
}

.dark-mode.high-contrast :focus-visible { outline-color: #ffff00; }
.dark-mode.high-contrast a { color: #00cc00; }
.dark-mode.high-contrast .hero { background: #000 !important; }
.dark-mode.high-contrast .site-header { background: #000; border-bottom-color: #fff; }
.dark-mode.high-contrast .site-footer { background: #000; }
.dark-mode.high-contrast .cta-banner { background: #1a1a1a !important; }