/* ==========================================================================
   CeramiGuard Detailing — Stylesheet
   Color Palette: Dark Charcoal, Burnt Orange, Steel Blue
   ========================================================================== */

/* ---------- 1. Custom Properties ---------- */
:root {
  color-scheme: dark;

  /* Colors */
  --color-primary: #D4600A;
  --color-primary-hover: #B8520A;
  --color-secondary: #1E5F8C;
  --color-secondary-hover: #174A6E;
  --color-accent-silver: #A0A0A8;
  --color-surface: #2A2A2E;
  --color-background: #1C1C1E;
  --color-dark: #121214;
  --color-text-primary: #E8E8EB;
  --color-text-secondary: #9CA3AF;
  --color-text-inverse: #FFFFFF;
  --color-border: #3A3A3E;
  --color-success: #16A34A;
  --color-error: #DC2626;
  --color-warning: #F59E0B;

  /* Spacing — 8 px grid */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-micro: 0.75rem;   /* 12 px */
  --font-size-small: 0.875rem;  /* 14 px */
  --font-size-body: 1rem;       /* 16 px */
  --font-size-body-lg: 1.125rem;/* 18 px */
  --font-size-h4: 1.25rem;      /* 20 px */
  --font-size-h3: 1.563rem;     /* ~25 px */
  --font-size-h2: 1.953rem;     /* ~31 px */
  --font-size-h1: 2.441rem;     /* ~39 px */
  --font-size-display: 3.052rem;/* ~49 px */

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-nav: 0 2px 8px rgba(0, 0, 0, 0.3);

  /* Misc */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --max-width: 1200px;
  --nav-height: 64px;
  --nav-height-mobile: 56px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: #3B8AC4;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #4FA0D8;
}

ul, ol {
  list-style: none;
}

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-h1); margin-bottom: var(--space-5); }
h2 { font-size: var(--font-size-h2); margin-bottom: var(--space-5); }
h3 { font-size: var(--font-size-h3); margin-bottom: var(--space-4); }
h4 { font-size: var(--font-size-h4); margin-bottom: var(--space-3); }

p {
  margin-bottom: var(--space-4);
  max-width: 72ch;
}

.text-center { text-align: center; }
.text-center p { margin-left: auto; margin-right: auto; }

/* ---------- 4. Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section {
  padding: var(--space-8) 0;
}

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

.section--dark {
  background-color: var(--color-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-6);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

.flex {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
}

.flex--center {
  align-items: center;
  justify-content: center;
}

/* ---------- 5. Navigation ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 600;
  font-weight: 700;
}

.skip-link:focus {
  top: var(--space-2);
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-background);
  height: var(--nav-height-mobile);
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition-base);
  border-bottom: 1px solid var(--color-border);
}

.navbar--scrolled {
  box-shadow: var(--shadow-nav);
  border-bottom-color: transparent;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  font-size: var(--font-size-h4);
  font-weight: 800;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.navbar__logo span {
  color: var(--color-primary);
}

.navbar__links {
  display: none;
  gap: var(--space-5);
  align-items: center;
}

.navbar__links a {
  color: var(--color-text-primary);
  font-size: var(--font-size-small);
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.navbar__links a:hover,
.navbar__links a.active {
  color: var(--color-primary);
}

.navbar__links a:hover::after,
.navbar__links a.active::after {
  width: 100%;
}

.navbar__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  position: relative;
  transition: background var(--transition-fast);
}

.navbar__toggle span::before,
.navbar__toggle span::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  left: 0;
  transition: transform var(--transition-base);
}

.navbar__toggle span::before { top: -7px; }
.navbar__toggle span::after { top: 7px; }

.navbar__toggle.active span {
  background: transparent;
}

.navbar__toggle.active span::before {
  transform: rotate(45deg);
  top: 0;
}

.navbar__toggle.active span::after {
  transform: rotate(-45deg);
  top: 0;
}

/* Mobile menu */
.navbar__mobile-menu {
  display: none;
  position: absolute;
  top: var(--nav-height-mobile);
  left: 0;
  right: 0;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: var(--space-4);
  z-index: 99;
}

.navbar__mobile-menu.active {
  display: block;
}

.navbar__mobile-menu a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-primary);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.navbar__mobile-menu a:hover,
.navbar__mobile-menu a.active {
  background: var(--color-surface);
  color: var(--color-primary);
}

/* ---------- 6. Buttons / CTAs ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: var(--font-size-body);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  min-height: 44px;
  padding: var(--space-3) var(--space-5);
}

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

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

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

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

.btn--tertiary {
  background: none;
  border: none;
  color: var(--color-primary);
  padding: var(--space-2) var(--space-3);
  min-height: auto;
}

.btn--tertiary:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

.btn--lg {
  font-size: var(--font-size-body-lg);
  padding: var(--space-4) var(--space-6);
  min-height: 52px;
}

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

.btn--white {
  background-color: #E8E8EB;
  color: var(--color-primary);
  border-color: #E8E8EB;
}

.btn--white:hover {
  background-color: #D0D0D5;
  border-color: #D0D0D5;
  color: var(--color-primary-hover);
}

/* ---------- 7. Cards ---------- */
.card {
  background: var(--color-background);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid var(--color-border);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), #E8832A);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-text-inverse);
  font-size: 1.5rem;
}

.card__icon--blue {
  background: linear-gradient(135deg, var(--color-secondary), #2A7AB5);
}

.card__title {
  font-size: var(--font-size-h4);
  margin-bottom: var(--space-3);
}

.card__text {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
  margin-bottom: var(--space-4);
}

.card__link {
  font-weight: 600;
  font-size: var(--font-size-small);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.card__link:hover {
  color: var(--color-primary-hover);
}

.card__link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.card__link:hover::after {
  transform: translateX(4px);
}

/* Pricing card variant */
.card--pricing {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.card--pricing.featured {
  border: 2px solid var(--color-primary);
}

.card--pricing .card__badge {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--font-size-small);
  font-weight: 600;
  padding: var(--space-2) 0;
}

.card--pricing .card__tier {
  font-size: var(--font-size-h3);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.card--pricing .card__durability {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
  margin-bottom: var(--space-5);
}

.card--pricing ul {
  text-align: left;
  margin-bottom: var(--space-5);
}

.card--pricing li {
  padding: var(--space-2) 0;
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.card--pricing li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
  flex-shrink: 0;
}

/* ---------- 8. Forms ---------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: var(--font-size-small);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  height: 48px;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(30, 95, 140, 0.35);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-small);
  margin-top: var(--space-1);
  display: none;
}

.form-error.visible {
  display: block;
}

.form-row {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

/* ---------- 9. Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-dark) 0%, #1A1A1C 100%);
  color: var(--color-text-inverse);
  padding: var(--space-9) 0;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://images.unsplash.com/photo-1607860108855-64acf2078ed9?w=1920&h=1080&fit=crop') center/cover no-repeat;
  opacity: 0.25;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 700px;
}

.hero h1 {
  color: var(--color-text-inverse);
  font-size: var(--font-size-display);
  line-height: 1.1;
  margin-bottom: var(--space-5);
}

.hero h1 span {
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: var(--font-size-body-lg);
  color: var(--color-accent-silver);
  max-width: 600px;
  margin-bottom: var(--space-6);
  line-height: 1.7;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ---------- 10. Trust Bar ---------- */
.trust-bar {
  background: linear-gradient(135deg, var(--color-primary), #E8832A);
  padding: var(--space-6) 0;
  color: var(--color-text-inverse);
}

.trust-bar__items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-5);
  text-align: center;
}

.trust-bar__item {
  font-weight: 600;
  font-size: var(--font-size-small);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.trust-bar__item::before {
  content: '✓';
  width: 24px;
  height: 24px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-micro);
  flex-shrink: 0;
}

/* ---------- 11. Footer ---------- */
.footer {
  background-color: var(--color-dark);
  color: var(--color-accent-silver);
  padding: var(--space-8) 0 var(--space-6);
}

.footer__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-8);
}

.footer__col-title {
  color: var(--color-text-inverse);
  font-size: var(--font-size-body);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.footer__links li {
  margin-bottom: var(--space-2);
}

.footer__links a {
  color: var(--color-accent-silver);
  font-size: var(--font-size-small);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-primary);
}

.footer__brand {
  font-size: var(--font-size-h4);
  font-weight: 800;
  color: var(--color-text-inverse);
  margin-bottom: var(--space-3);
}

.footer__brand span {
  color: var(--color-primary);
}

.footer__tagline {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  max-width: 300px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.footer__copyright {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
}

/* ---------- 12. Page-Specific: Service Area ---------- */
.service-area__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}

.service-area__tag {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ---------- 13. Page-Specific: Process Steps ---------- */
.process-steps {
  counter-reset: step;
}

.process-step {
  display: flex;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
  align-items: flex-start;
}

.process-step__number {
  counter-increment: step;
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: linear-gradient(135deg, var(--color-primary), #E8832A);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-inverse);
  font-weight: 800;
  font-size: var(--font-size-h4);
}

.process-step__content h3 {
  font-size: var(--font-size-h4);
  margin-bottom: var(--space-2);
}

.process-step__content p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
  margin-bottom: 0;
}

/* ---------- 14. Page-Specific: FAQ Accordion ---------- */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
}

.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: left;
  min-height: 44px;
}

.faq-item__icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  position: relative;
  transition: transform var(--transition-base);
}

.faq-item__icon::before,
.faq-item__icon::after {
  content: '';
  position: absolute;
  background: var(--color-primary);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: transform var(--transition-base);
}

.faq-item__icon::before {
  width: 16px;
  height: 2px;
}

.faq-item__icon::after {
  width: 2px;
  height: 16px;
}

.faq-item.active .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-item__answer-inner {
  padding: 0 var(--space-5) var(--space-5);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.faq-item__answer-inner a {
  color: var(--color-primary);
  font-weight: 600;
}

/* ---------- 15. Page-Specific: Services Page ---------- */
.service-block {
  display: grid;
  gap: var(--space-6);
  align-items: center;
  margin-bottom: var(--space-8);
  grid-template-columns: 1fr;
}

.service-block:nth-child(even) .service-block__image {
  order: -1;
}

.service-block__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16/10;
}

.service-block__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-block__content h2 {
  color: var(--color-text-primary);
}

.service-block__content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-5);
}

/* ---------- 16. Page-Specific: Benefits List ---------- */
.benefits-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

.benefit-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.benefit-item__icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: rgba(212, 96, 10, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.25rem;
}

.benefit-item h3 {
  font-size: var(--font-size-body);
  margin-bottom: var(--space-1);
}

.benefit-item p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
  margin-bottom: 0;
}

/* ---------- 17. Contact Info Cards ---------- */
.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-inverse);
  font-size: 1.25rem;
}

.contact-card__label {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.contact-card__value {
  font-weight: 600;
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
}

/* ---------- 18. Breadcrumb ---------- */
.breadcrumb {
  padding: var(--space-4) 0;
  font-size: var(--font-size-small);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.breadcrumb__item {
  color: var(--color-text-secondary);
}

.breadcrumb__item a {
  color: var(--color-text-secondary);
}

.breadcrumb__item a:hover {
  color: var(--color-primary);
}

.breadcrumb__separator {
  color: var(--color-border);
}

/* ---------- 19. Page Header ---------- */
.page-header {
  background: linear-gradient(135deg, var(--color-dark) 0%, #1A1A1C 100%);
  color: var(--color-text-inverse);
  padding: var(--space-7) 0;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(212, 96, 10, 0.2), rgba(30, 95, 140, 0.2));
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  color: var(--color-text-inverse);
  margin-bottom: var(--space-4);
}

.page-header p {
  color: var(--color-accent-silver);
  font-size: var(--font-size-body-lg);
  max-width: 650px;
}

/* ---------- 20. CTA Section ---------- */
.cta-section {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-hover));
  color: var(--color-text-inverse);
  padding: var(--space-8) 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--color-text-inverse);
  margin-bottom: var(--space-4);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  margin: 0 auto var(--space-6);
  max-width: 550px;
}

/* ---------- 21. Responsive ---------- */
@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-6);
  }

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

  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }

  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .navbar {
    height: var(--nav-height);
  }

  .navbar__links {
    display: flex;
  }

  .navbar__toggle {
    display: none;
  }

  .navbar__mobile-menu {
    display: none !important;
  }

  .hero h1 {
    font-size: 3.5rem;
  }

  .grid--3 { grid-template-columns: repeat(3, 1fr); }

  .service-block {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }

  h1 { font-size: 2.75rem; }
  h2 { font-size: 2.25rem; }

  .hero h1 { font-size: 4rem; }

  .section {
    padding: var(--space-9) 0;
  }

  .grid--4 { grid-template-columns: repeat(4, 1fr); }

  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

@media (min-width: 1280px) {
  h1 { font-size: 3rem; }
  .hero h1 { font-size: 4.5rem; }
}

/* ---------- 22. Accessibility ---------- */
:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

@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;
  }
}

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