/* ============================================
   Buddy's Cleaning Services Ltd - Main Stylesheet
   Light/Dark theme based on time of day
   ============================================ */

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

/* --- Skip Link (WCAG 2.4.1) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--accent);
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 var(--radius) var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  z-index: 10000;
  transition: top 0.2s ease;
  text-decoration: none;
}

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

:root {
  /* Dark theme (default / night) */
  --primary: #0a1628;
  --primary-light: #111d33;
  --accent: #00a8ff;
  --accent-glow: #4dc9ff;
  --accent-dark: #0077b6;
  --text: #ffffff;
  --text-secondary: #d0dce8;
  --text-muted: #9badc0;
  --card-bg: #111d33;
  --card-border: rgba(0, 168, 255, 0.1);
  --input-bg: #0a1628;
  --input-border: rgba(0, 168, 255, 0.15);
  --header-bg: rgba(0, 0, 0, 0.95);
  --header-bg-scroll: rgba(0, 0, 0, 0.98);
  --footer-bg: #060d18;
  --footer-border: rgba(0, 168, 255, 0.1);
  --divider: rgba(255, 255, 255, 0.05);
  --overlay-bg: rgba(0, 0, 0, 0.6);
  --hero-gradient-1: rgba(0, 168, 255, 0.08);
  --hero-gradient-2: rgba(0, 168, 255, 0.05);
  --nav-hover-bg: rgba(0, 168, 255, 0.1);
  --btn-outline-border: rgba(255, 255, 255, 0.3);
  --hamburger-color: #ffffff;
  --success: #00d2d3;
  --font-main: 'Inter', 'Segoe UI', sans-serif;
  --font-heading: 'Montserrat', 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --radius: 12px;
  --shadow: 0 4px 30px rgba(0, 168, 255, 0.1);
  --shadow-lg: 0 8px 60px rgba(0, 168, 255, 0.15);
  --transition: 0.3s ease;
}

/* Light theme */
[data-theme="light"] {
  --primary: #f0f4f8;
  --primary-light: #ffffff;
  --text: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --card-bg: #ffffff;
  --card-border: rgba(0, 119, 182, 0.12);
  --input-bg: #f7f9fc;
  --input-border: rgba(0, 119, 182, 0.2);
  --header-bg: rgba(255, 255, 255, 0.95);
  --header-bg-scroll: rgba(255, 255, 255, 0.98);
  --footer-bg: #1a1a2e;
  --footer-border: rgba(0, 168, 255, 0.15);
  --divider: rgba(0, 0, 0, 0.06);
  --overlay-bg: rgba(0, 0, 0, 0.4);
  --hero-gradient-1: rgba(0, 168, 255, 0.06);
  --hero-gradient-2: rgba(0, 168, 255, 0.03);
  --nav-hover-bg: rgba(0, 168, 255, 0.08);
  --btn-outline-border: rgba(0, 119, 182, 0.3);
  --hamburger-color: #1a1a2e;
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);
  --accent-dark: #005f8f;
}

/* Light theme specific overrides for footer text */
[data-theme="light"] .site-footer {
  color: #ffffff;
}
[data-theme="light"] .site-footer h4 {
  color: #ffffff;
}
[data-theme="light"] .footer-links a {
  color: #b0bec5;
}
[data-theme="light"] .footer-links a:hover {
  color: var(--accent);
}
[data-theme="light"] .footer-brand p {
  color: #b0bec5;
}
[data-theme="light"] .footer-bottom {
  color: #b0bec5;
}

/* Logo switching */
.logo-dark { display: block; }
.logo-light { display: none; }

[data-theme="light"] .logo-dark { display: none; }
[data-theme="light"] .logo-light { display: block; }

/* Theme transition */
body,
.site-header,
.service-card,
.pricing-card,
.contact-info-card,
.contact-form,
.service-detail-image,
.site-footer {
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background: var(--primary);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

/* --- Focus Styles (WCAG 2.4.7) --- */
*:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

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

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

.nav-cta:focus-visible {
  outline: 3px solid var(--accent-glow) !important;
  outline-offset: 3px;
}

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

[data-theme="light"] a:hover {
  color: var(--accent-dark);
}

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

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
}

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--header-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--card-border);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header .container {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  gap: 1rem;
}

.site-header .logo {
  order: 1;
  margin-right: auto;
}

.site-header .main-nav {
  order: 2;
}

.site-header .nav-toggle {
  order: 4;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 100px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--hamburger-color);
  margin: 5px 0;
  border-radius: 3px;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.main-nav a {
  display: block;
  padding: 0.6rem 1.2rem;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text);
  background: var(--nav-hover-bg);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  min-width: 220px;
  padding: 0.5rem;
  box-shadow: var(--shadow-lg);
}

.nav-dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border-radius: 8px;
}

.nav-cta {
  background: var(--accent) !important;
  color: #ffffff !important;
  font-weight: 600 !important;
  padding: 0.6rem 1.5rem !important;
}

.nav-cta:hover {
  background: var(--accent-dark) !important;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 1rem 4rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center top, var(--hero-gradient-1) 0%, transparent 60%),
              radial-gradient(ellipse at bottom right, var(--hero-gradient-2) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-logo {
  width: 400px;
  max-width: 90%;
  margin: 0 auto 2rem;
  filter: drop-shadow(0 0 30px rgba(0, 168, 255, 0.3));
}

[data-theme="light"] .hero-logo {
  filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.1));
}

.hero h1 {
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-glow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .hero h1 {
  background: linear-gradient(135deg, #1a1a2e 0%, var(--accent-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 168, 255, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0, 168, 255, 0.4);
  color: #ffffff;
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--btn-outline-border);
}

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

.btn-lg {
  padding: 1.1rem 2.5rem;
  font-size: 1.1rem;
}

/* --- Section Styles --- */
.section {
  padding: 5rem 0;
}

.section-dark {
  background: var(--card-bg);
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

.section-label {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.75rem;
}

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-glow));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 168, 255, 0.25);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(0, 168, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--accent);
}

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.service-card .btn {
  font-size: 0.9rem;
  padding: 0.6rem 1.5rem;
}

/* --- Features / Why Choose Us --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-item {
  text-align: center;
  padding: 2rem 1.5rem;
}

.feature-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-heading);
  margin-bottom: 0.5rem;
}

.feature-item h3 {
  margin-bottom: 0.5rem;
}

.feature-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 50%, var(--accent-glow) 100%);
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.cta-banner h2 {
  margin-bottom: 1rem;
  color: #ffffff;
}

.cta-banner p {
  margin-bottom: 2rem;
  font-size: 1.1rem;
  opacity: 0.9;
  color: #ffffff;
}

.cta-banner .btn {
  background: #ffffff;
  color: var(--accent-dark);
}

.cta-banner .btn:hover {
  background: var(--primary);
  color: var(--text);
}

/* --- Service Detail Page --- */
.page-hero {
  padding: 10rem 0 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at top, var(--hero-gradient-1), transparent 60%);
  pointer-events: none;
}

.page-hero h1 {
  margin-bottom: 1rem;
}

.page-hero p {
  color: var(--text-secondary);
  font-size: 1.15rem;
  max-width: 650px;
  margin: 0 auto;
}

.service-detail {
  padding: 4rem 0;
}

.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.service-detail-content h2 {
  margin-bottom: 1rem;
}

.service-detail-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.service-detail-image {
  background: var(--card-bg);
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  border: 1px solid var(--card-border);
}

.check-list {
  list-style: none;
  margin-bottom: 2rem;
}

.check-list li {
  padding: 0.5rem 0;
  padding-left: 2rem;
  position: relative;
  color: var(--text-secondary);
}

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

/* --- Pricing Cards --- */
.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all var(--transition);
}

.pricing-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

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

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #ffffff;
  padding: 0.25rem 1.25rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.pricing-card h3 {
  margin-bottom: 0.5rem;
}

.pricing-card .price {
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 2rem;
  text-align: left;
}

.pricing-card li {
  padding: 0.4rem 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding-left: 1.5rem;
  position: relative;
}

.pricing-card li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  transition: all var(--transition);
}

.contact-info-card:hover {
  border-color: var(--accent);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: rgba(0, 168, 255, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  color: var(--accent);
}

.contact-info-card h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-info-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-form {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2.5rem;
}

.contact-form h3 {
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 3px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.form-group input:focus:not(:focus-visible),
.form-group select:focus:not(:focus-visible),
.form-group textarea:focus:not(:focus-visible) {
  outline: none;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* --- Footer --- */
.site-footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--footer-border);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 300px;
}

.footer-brand .logo img {
  height: 40px;
}

.site-footer h4 {
  font-size: 0.95rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--divider);
  padding: 1.5rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- Theme Toggle Button --- */
.theme-toggle {
  background: none;
  border: 2px solid var(--card-border);
  border-radius: 50px;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-secondary);
  margin-left: 1.5rem;
  order: 3;
}

.theme-toggle:hover {
  border-color: var(--accent);
  background: var(--nav-hover-bg);
}

.theme-toggle .theme-icon-dark { display: inline; }
.theme-toggle .theme-icon-light { display: none; }

[data-theme="light"] .theme-toggle .theme-icon-dark { display: none; }
[data-theme="light"] .theme-toggle .theme-icon-light { display: inline; }

/* --- Visually Hidden (screen reader only) --- */
.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;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 968px) {
  .service-detail-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 350px;
    height: 100vh;
    background: var(--card-bg);
    padding: 5rem 2rem 2rem;
    transition: right var(--transition);
    border-left: 1px solid var(--card-border);
    z-index: 1000;
  }

  .main-nav.open {
    right: 0;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }

  .theme-toggle {
    order: 3;
    margin-left: 0;
  }

  .nav-dropdown .dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    background: transparent;
  }

  .nav-dropdown.open .dropdown-menu {
    display: block;
  }

  .hero {
    min-height: 80vh;
    padding: 7rem 1rem 3rem;
  }

  .hero-logo {
    width: 280px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .section {
    padding: 3.5rem 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .pricing-cards {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
}

/* --- Reduced Motion (WCAG 2.3.3) --- */
@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;
  }

  html {
    scroll-behavior: auto;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* --- High Contrast (WCAG 1.4.11) --- */
@media (prefers-contrast: more) {
  :root {
    --card-border: rgba(255, 255, 255, 0.4);
    --btn-outline-border: rgba(255, 255, 255, 0.6);
  }

  [data-theme="light"] {
    --card-border: rgba(0, 0, 0, 0.3);
    --btn-outline-border: rgba(0, 0, 0, 0.5);
  }

  *:focus-visible {
    outline-width: 4px;
  }
}

/* --- Nav Overlay --- */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  z-index: 999;
}

.nav-overlay.active {
  display: block;
}