/* ==========================================================================
   Probe Plumbing & Heating - Design System & Modern Stylesheet
   ========================================================================== */

:root {
  /* Core Palette */
  --color-primary-50: #f0f7ff;
  --color-primary-100: #e0f2fe;
  --color-primary-200: #bae6fd;
  --color-primary-300: #7dd3fc;
  --color-primary-500: #0ea5e9;
  --color-primary-600: #0284c7;
  --color-primary-700: #0369a1;
  --color-primary-800: #075985;
  --color-primary-900: #0c4a6e;

  --color-slate-50: #f8fafc;
  --color-slate-100: #f1f5f9;
  --color-slate-200: #e2e8f0;
  --color-slate-300: #cbd5e1;
  --color-slate-400: #94a3b8;
  --color-slate-500: #64748b;
  --color-slate-600: #475569;
  --color-slate-700: #334155;
  --color-slate-800: #1e293b;
  --color-slate-900: #0f172a;
  --color-slate-950: #0a0f1d;

  --color-amber-50: #fffbeb;
  --color-amber-100: #fef3c7;
  --color-amber-500: #f59e0b;
  --color-amber-600: #d97706;
  --color-amber-700: #b45309;

  --color-emerald-50: #ecfdf5;
  --color-emerald-100: #d1fae5;
  --color-emerald-500: #10b981;
  --color-emerald-600: #059669;
  --color-emerald-700: #047857;

  --color-red-50: #fef2f2;
  --color-red-500: #ef4444;
  --color-red-600: #dc2626;

  --color-whatsapp: #25d366;
  --color-whatsapp-dark: #128c7e;

  /* Semantic Theme Mappings */
  --navy: var(--color-slate-900);
  --navy-soft: var(--color-slate-800);
  --blue: var(--color-primary-700);
  --blue-soft: var(--color-primary-50);
  --orange: var(--color-amber-500);
  --white: #ffffff;
  --bg-light: #f8fafc;
  --bg-soft: #f1f5f9;
  --text: var(--color-slate-700);
  --text-heading: var(--color-slate-900);
  --muted: var(--color-slate-600);
  --muted-light: var(--color-slate-500);
  --success: var(--color-emerald-600);
  --border: var(--color-slate-200);
  --border-light: rgba(226, 232, 240, 0.7);

  /* Elevation & Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 4px -1px rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 16px -4px rgba(15, 23, 42, 0.08), 0 2px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 28px -6px rgba(15, 23, 42, 0.1), 0 4px 10px -3px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 24px 44px -8px rgba(15, 23, 42, 0.14), 0 8px 16px -4px rgba(15, 23, 42, 0.06);

  /* Radius */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --type-display-size: clamp(2.25rem, 4.5vw, 3.25rem);
  --type-display-weight: 800;
  --type-display-line-height: 1.1;
  --type-display-letter-spacing: -0.035em;

  --type-h1-size: clamp(2rem, 3.8vw, 2.75rem);
  --type-h1-weight: 700;
  --type-h1-line-height: 1.16;
  --type-h1-letter-spacing: -0.028em;

  --type-h2-size: clamp(1.625rem, 2.8vw, 2.125rem);
  --type-h2-weight: 700;
  --type-h2-line-height: 1.22;
  --type-h2-letter-spacing: -0.024em;

  --type-h3-size: clamp(1.3rem, 2.2vw, 1.625rem);
  --type-h3-weight: 600;
  --type-h3-line-height: 1.28;
  --type-h3-letter-spacing: -0.018em;

  --type-h4-size: clamp(1.15rem, 1.7vw, 1.35rem);
  --type-h4-weight: 600;
  --type-h4-line-height: 1.32;
  --type-h4-letter-spacing: -0.012em;

  --type-h5-size: 1.125rem;
  --type-h5-weight: 600;
  --type-h5-line-height: 1.35;
  --type-h5-letter-spacing: -0.008em;

  --type-h6-size: 1rem;
  --type-h6-weight: 600;
  --type-h6-line-height: 1.4;
  --type-h6-letter-spacing: 0;

  --type-body-large-size: 1.125rem;
  --type-body-size: 1rem;
  --type-body-small-size: 0.875rem;
  --type-caption-size: 0.75rem;
  --type-body-weight: 400;
  --type-body-line-height: 1.65;
  --type-body-letter-spacing: -0.005em;
  --type-paragraph-spacing: 1.15rem;
  --type-heading-margin-bottom: 0.85rem;
  --type-heading-gap-before: 1.5rem;

  --type-nav-size: 0.95rem;
  --type-nav-weight: 500;
  --type-button-size: 0.95rem;
  --type-button-weight: 600;
  --type-label-size: 0.925rem;
  --type-label-weight: 600;
  --type-input-size: 1rem;
  --type-helper-size: 0.85rem;
  --type-error-size: 0.85rem;
  --type-overline-size: 0.78rem;
  --type-overline-weight: 700;
  --type-overline-letter-spacing: 0.08em;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   CSS Reset & Base Rules
   ========================================================================== */

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

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

body {
  margin: 0;
  font-family: var(--font-primary);
  font-size: var(--type-body-size);
  font-weight: var(--type-body-weight);
  color: var(--text);
  background-color: var(--white);
  line-height: var(--type-body-line-height);
  letter-spacing: var(--type-body-letter-spacing);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

:target {
  scroll-margin-top: 100px;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--navy);
  color: var(--white);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  z-index: 9999;
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--color-primary-500);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 12px;
  outline: none;
}

/* ==========================================================================
   Typography & Elements
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  margin: 0 0 var(--type-heading-margin-bottom);
  color: var(--text-heading);
  text-wrap: balance;
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--type-h1-size);
  font-weight: var(--type-h1-weight);
  line-height: var(--type-h1-line-height);
  letter-spacing: var(--type-h1-letter-spacing);
}

h2 {
  font-size: var(--type-h2-size);
  font-weight: var(--type-h2-weight);
  line-height: var(--type-h2-line-height);
  letter-spacing: var(--type-h2-letter-spacing);
}

h3 {
  font-size: var(--type-h3-size);
  font-weight: var(--type-h3-weight);
  line-height: var(--type-h3-line-height);
  letter-spacing: var(--type-h3-letter-spacing);
}

h4 {
  font-size: var(--type-h4-size);
  font-weight: var(--type-h4-weight);
  line-height: var(--type-h4-line-height);
  letter-spacing: var(--type-h4-letter-spacing);
}

h5 {
  font-size: var(--type-h5-size);
  font-weight: var(--type-h5-weight);
  line-height: var(--type-h5-line-height);
}

h6 {
  font-size: var(--type-h6-size);
  font-weight: var(--type-h6-weight);
  line-height: var(--type-h6-line-height);
}

:is(p, ul, ol, dl, table, blockquote, details) + :is(h2, h3, h4, h5, h6) {
  margin-top: var(--type-heading-gap-before);
}

p {
  margin: 0 0 var(--type-paragraph-spacing);
  font-size: var(--type-body-size);
  line-height: var(--type-body-line-height);
  color: var(--text);
  max-width: 72ch;
}

main h1 + p {
  font-size: var(--type-body-large-size);
  line-height: 1.6;
  color: var(--muted);
}

a {
  color: var(--blue);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

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

a:not(.btn):not(.brand):not(.main-nav a):hover {
  text-decoration-color: var(--color-primary-800);
}

img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  display: block;
}

ul, ol {
  margin: 0 0 var(--type-paragraph-spacing);
  padding-left: 1.35rem;
  color: var(--text);
}

li {
  line-height: var(--type-body-line-height);
  margin-bottom: 0.35rem;
}

strong, b {
  font-weight: 600;
  color: var(--text-heading);
}

small, .text-caption {
  font-size: var(--type-caption-size);
  line-height: 1.5;
  color: var(--muted);
}

/* Accessible Focus States */
:focus-visible {
  outline: 2px solid var(--color-primary-600);
  outline-offset: 3px;
}

/* ==========================================================================
   Layout & Containers
   ========================================================================== */

.container {
  width: min(1160px, 92%);
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 1600px) {
  .container {
    width: min(1440px, 93%);
  }
}

.section {
  padding: clamp(52px, 7vw, 84px) 0;
}

.section--light {
  background-color: var(--color-slate-50);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section--tint {
  background: linear-gradient(180deg, var(--color-primary-50) 0%, var(--white) 100%);
  border-top: 1px solid var(--color-primary-100);
  border-bottom: 1px solid var(--color-primary-100);
}

/* Eyebrow Label */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary-700);
  font-weight: var(--type-overline-weight);
  text-transform: uppercase;
  font-size: var(--type-overline-size);
  letter-spacing: var(--type-overline-letter-spacing);
  line-height: 1.4;
  margin-bottom: 10px;
  background-color: var(--color-primary-50);
  border: 1px solid var(--color-primary-100);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.eyebrow--dark {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-primary-200);
  border-color: rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   Buttons & Interactive Elements
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-md);
  padding: 12px 22px;
  text-decoration: none;
  font-size: var(--type-button-size);
  font-weight: var(--type-button-weight);
  line-height: 1.25;
  border: 1px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
  min-height: 48px;
  cursor: pointer;
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn--primary {
  background: var(--color-primary-700);
  color: var(--white);
  border-color: var(--color-primary-800);
  box-shadow: 0 2px 4px rgba(3, 105, 161, 0.2), 0 1px 2px rgba(15, 23, 42, 0.05);
}

.btn--primary:hover {
  background: var(--color-primary-800);
  color: var(--white);
  box-shadow: 0 6px 14px -2px rgba(3, 105, 161, 0.35);
}

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

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

.btn--accent {
  background: var(--color-whatsapp);
  color: #033618;
  border-color: #1eb957;
  font-weight: 700;
  box-shadow: 0 2px 4px rgba(37, 211, 102, 0.25);
}

.btn--accent:hover {
  background: #22bf5b;
  color: #033618;
  box-shadow: 0 6px 14px -2px rgba(37, 211, 102, 0.4);
}

.btn--amber {
  background: var(--color-amber-500);
  color: var(--color-slate-950);
  border-color: var(--color-amber-600);
}

.btn--amber:hover {
  background: var(--color-amber-600);
  color: var(--white);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* Pills / Badges */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 6px 13px;
  background: var(--white);
  font-size: var(--type-body-small-size);
  line-height: 1.4;
  color: var(--color-slate-800);
  font-weight: 500;
  box-shadow: var(--shadow-xs);
}

.pill--success {
  border-color: var(--color-emerald-200, #a7f3d0);
  background: var(--color-emerald-50);
  color: var(--color-emerald-700);
}

.pill--highlight {
  border-color: var(--color-amber-200, #fde68a);
  background: var(--color-amber-50);
  color: var(--color-amber-700);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--transition-base), background-color var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-slate-900);
  font-weight: 700;
}

.brand__logo {
  height: 48px;
  width: auto;
  max-width: 170px;
  object-fit: contain;
  border-radius: 0;
}

.brand__text {
  display: flex;
  flex-direction: column;
}

.brand__name {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-slate-900);
  letter-spacing: -0.02em;
}

.brand__tagline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.725rem;
  color: var(--muted);
  font-weight: 500;
}

.brand__tagline-icon {
  width: 14px;
  height: 14px;
  color: var(--color-primary-700);
  flex-shrink: 0;
}

/* Compatibility for legacy CSS brand pseudo-element */
.brand small {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.925rem;
  color: var(--color-slate-900);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: var(--color-slate-100);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header-phone:hover {
  background: var(--color-primary-100);
  color: var(--color-primary-800);
}

.header-phone svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary-700);
}

.main-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  color: var(--color-slate-700);
  text-decoration: none;
  font-weight: var(--type-nav-weight);
  font-size: var(--type-nav-size);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.main-nav a:hover {
  background: var(--color-slate-100);
  color: var(--color-slate-900);
}

.main-nav a[aria-current="page"] {
  background: var(--color-primary-50);
  color: var(--color-primary-800);
  font-weight: 600;
}

.menu-toggle {
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: var(--radius-md);
  width: 44px;
  height: 44px;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--color-slate-800);
  cursor: pointer;
  padding: 0;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.menu-toggle:hover {
  background: var(--color-slate-50);
  border-color: var(--color-slate-300);
}

.menu-toggle svg {
  width: 22px;
  height: 22px;
}

.menu-toggle .icon-close {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

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

.hero {
  padding: clamp(56px, 8vw, 88px) 0 clamp(48px, 6vw, 72px);
  background:
    radial-gradient(1100px 500px at 85% -40px, #e8f4fc 0%, transparent 60%),
    linear-gradient(180deg, #f8fbfe 0%, #ffffff 85%);
  position: relative;
  border-bottom: 1px solid var(--border-light);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: clamp(36px, 5vw, 64px);
  align-items: center;
}

.hero h1 {
  font-size: var(--type-h1-size);
  font-weight: var(--type-h1-weight);
  line-height: var(--type-h1-line-height);
  letter-spacing: var(--type-h1-letter-spacing);
  margin-bottom: 16px;
}

.hero p {
  font-size: var(--type-body-large-size);
  line-height: 1.6;
  color: var(--muted);
  margin-bottom: 24px;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: 28px;
}

.hero-image-wrap {
  position: relative;
}

.hero-image-wrap::before {
  content: '';
  position: absolute;
  inset: -8px;
  background: linear-gradient(135deg, rgba(3, 105, 161, 0.15), rgba(15, 23, 42, 0.05));
  border-radius: calc(var(--radius) + 8px);
  z-index: 0;
}

.hero img {
  position: relative;
  z-index: 1;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* Trust Bar / Strip */
.trust-strip {
  background: var(--color-slate-900);
  color: var(--white);
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.trust-strip ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
  align-items: center;
}

.trust-strip li {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.88rem;
  line-height: 1.4;
  color: #e2e8f0;
  text-align: center;
  margin: 0;
}

.trust-strip li svg {
  width: 18px;
  height: 18px;
  color: var(--color-emerald-500);
  flex-shrink: 0;
}

.trust-strip li::before {
  display: none;
}

/* ==========================================================================
   Cards & Card Grids
   ========================================================================== */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.card {
  background: var(--white);
  border: 1px solid var(--color-slate-300);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  position: relative;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-lg);
}

.card h2,
.card h3 {
  font-size: var(--type-h4-size);
  line-height: 1.3;
  margin-bottom: 10px;
  color: var(--text-heading);
}

.card p {
  margin-bottom: 18px;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--muted);
}

.card > a:last-child {
  margin-top: auto;
  color: var(--color-primary-700);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-top: 8px;
}

.card > a:last-child::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.card:hover > a:last-child::after {
  transform: translateX(4px);
}

/* Service Card Icon Badge */
.icon-badge {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  border: 1px solid var(--color-primary-100);
  margin-bottom: 18px;
  flex-shrink: 0;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.icon-badge svg {
  width: 24px;
  height: 24px;
}

.card:hover .icon-badge {
  background: var(--color-primary-100);
  transform: scale(1.05);
}

/* Work Gallery */
.work-gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.work-gallery figure {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.work-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 0;
  border-radius: 0;
}

.work-gallery figcaption {
  margin: 0;
  padding: 10px 14px 12px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--muted);
}

/* Review Cards */
.review {
  border-left: 4px solid var(--color-amber-500);
  position: relative;
}

.review .stars {
  display: flex;
  gap: 3px;
  color: var(--color-amber-500);
  margin-bottom: 12px;
}

.review .stars svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

.review blockquote {
  margin: 0 0 14px 0;
  font-style: normal;
  color: var(--color-slate-800);
  font-size: 0.96rem;
  line-height: 1.55;
}

.review .reviewer {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  font-size: 0.88rem;
  color: var(--muted);
}

.review .avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-primary-100);
  color: var(--color-primary-800);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.8rem;
}

/* ==========================================================================
   Two-Column Split & Visual Sections
   ========================================================================== */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}

.split img {
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.list-check {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}

.list-check li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 12px;
  color: var(--color-slate-700);
  font-size: 0.96rem;
  line-height: 1.5;
}

.list-check li svg {
  width: 18px;
  height: 18px;
  color: var(--color-emerald-600);
  flex-shrink: 0;
  margin-top: 3px;
}

.list-check li::before {
  display: none;
}

/* Areas / Maps */
.areas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

.map {
  border: 1px solid var(--border);
  width: 100%;
  min-height: 360px;
  height: 100%;
  border-radius: var(--radius);
  background: var(--color-slate-100);
  box-shadow: var(--shadow-sm);
}

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

.breadcrumbs {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: var(--type-body-small-size);
  line-height: 1.4;
  margin: 20px 0 16px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--white);
  color: var(--muted);
  box-shadow: var(--shadow-xs);
}

.breadcrumbs a {
  color: var(--color-slate-700);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--color-primary-700);
}

.breadcrumbs .sep {
  color: var(--color-slate-400);
}

.breadcrumbs span[aria-current="page"],
.breadcrumbs span:last-child {
  color: var(--color-slate-900);
  font-weight: 600;
}

/* ==========================================================================
   Facts & Service Process Stepper
   ========================================================================== */

.facts {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}

.facts h2, .facts h3 {
  margin-bottom: 16px;
}

.facts dl {
  margin: 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 10px 16px;
}

.facts dt {
  color: var(--color-slate-900);
  font-weight: 600;
  font-size: 0.95rem;
  padding-right: 8px;
  border-right: 1px solid var(--border);
}

.facts dd {
  margin: 0;
  font-size: 0.95rem;
  line-height: var(--type-body-line-height);
  color: var(--color-slate-700);
}

/* Service Process Stepper */
.service-process {
  counter-reset: step;
  margin: 0 0 20px;
  padding-left: 0;
  position: relative;
}

.service-process li {
  list-style: none;
  margin: 0 0 18px;
  position: relative;
  padding-left: 48px;
  color: var(--color-slate-700);
  font-size: 0.96rem;
  line-height: 1.5;
}

.service-process li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  border: 2px solid var(--color-primary-200);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.88rem;
}

/* ==========================================================================
   FAQ Section & Accordions
   ========================================================================== */

.faq details {
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-xs);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.faq details[open] {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-sm);
}

.faq summary {
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-slate-900);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: '';
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-primary-700);
  border-bottom: 2px solid var(--color-primary-700);
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  margin-right: 4px;
}

.faq details[open] summary::after {
  transform: rotate(-135deg);
}

.faq p {
  margin: 12px 0 0;
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ==========================================================================
   CTA Banners & Panels
   ========================================================================== */

.cta-panel {
  background: linear-gradient(135deg, var(--color-slate-900) 0%, #0d2847 100%);
  border-radius: var(--radius-lg);
  color: var(--white);
  padding: clamp(32px, 5vw, 48px);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-panel::after {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.cta-panel h2,
.cta-panel h3 {
  color: var(--white);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin-bottom: 12px;
}

.cta-panel p {
  color: #cbd5e1;
  font-size: 1.05rem;
  max-width: 60ch;
  margin-bottom: 24px;
}

/* ==========================================================================
   Contact Page & Forms
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(32px, 5vw, 56px);
  align-items: start;
}

.contact-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 36px);
  box-shadow: var(--shadow-md);
}

form {
  display: grid;
  gap: 16px;
}

.form-group {
  display: grid;
  gap: 6px;
}

label {
  font-size: var(--type-label-size);
  font-weight: var(--type-label-weight);
  color: var(--color-slate-800);
}

label .required {
  color: var(--color-red-600);
}

input,
textarea,
select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--color-slate-300);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: var(--font-primary);
  font-size: var(--type-input-size);
  line-height: 1.45;
  background: var(--white);
  color: var(--color-slate-900);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

textarea {
  min-height: 130px;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-primary-600);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.18);
  outline: none;
}

.form-helper {
  color: var(--muted);
  font-size: var(--type-helper-size);
  line-height: 1.4;
}

.form-error {
  color: var(--color-red-600);
  font-size: var(--type-error-size);
  font-weight: 500;
  display: none;
}

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

/* ==========================================================================
   Blog & Article Styles
   ========================================================================== */

.blog-page .card h2 {
  font-size: 1.15rem;
  line-height: 1.35;
  margin-bottom: 10px;
}

.blog-meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary-700);
  background: var(--color-primary-50);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  margin-bottom: 12px;
}

.blog-article main article {
  max-width: 74ch;
  margin: 0 auto;
}

.blog-article main h1 {
  font-size: clamp(2rem, 3.8vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: 16px;
}

.blog-article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  margin-bottom: 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

.blog-article main h2 {
  font-size: 1.4rem;
  margin-top: 36px;
  margin-bottom: 12px;
}

.blog-article .summary-box {
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 24px 0;
}

.blog-article .summary-box h3 {
  color: var(--color-primary-900);
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.author-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 40px;
}

.author-card__avatar {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
  font-size: 1.15rem;
}

.author-card__info h4 {
  margin: 0 0 4px;
  font-size: 1rem;
  color: var(--color-slate-900);
}

.author-card__info p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.5;
}

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

.site-footer {
  background: var(--color-slate-900);
  color: #cbd5e1;
  padding: 64px 0 calc(96px + env(safe-area-inset-bottom, 0px));
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer a {
  color: #e2e8f0;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.site-footer .pill {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  color: #e2e8f0;
  box-shadow: none;
}

.site-footer .pill--success,
.site-footer a.pill--success {
  background: #f59e0b; /* Official Gas Safe Yellow */
  border-color: #d97706;
  color: #0f172a !important;
  font-weight: 700;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  text-decoration: none !important;
}

.site-footer .pill--success:hover,
.site-footer a.pill--success:hover {
  background: #fbbf24;
  color: #0f172a !important;
  text-decoration: none !important;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.9rem;
  line-height: 1.55;
  margin-bottom: 16px;
}

.footer-grid h4,
.footer-grid section h3 {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

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

.footer-list li {
  margin-bottom: 10px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #94a3b8;
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.85rem;
  color: #94a3b8;
}

.footer-bottom p {
  margin: 0;
  color: #94a3b8;
  font-size: 0.85rem;
}

/* ==========================================================================
   Mobile Floating Action Bar
   ========================================================================== */

.floating-cta {
  position: fixed;
  bottom: 16px;
  right: 16px;
  display: flex;
  gap: 8px;
  z-index: 99;
}

.floating-cta a {
  text-decoration: none;
  border-radius: var(--radius-full);
  padding: 10px 16px;
  color: var(--white);
  font-weight: 600;
  font-size: 0.875rem;
  box-shadow: var(--shadow-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.floating-cta a:hover {
  transform: translateY(-2px);
  color: var(--white);
  box-shadow: var(--shadow-xl);
}

.floating-cta .call {
  background: var(--color-primary-700);
}

.floating-cta .wa {
  background: var(--color-whatsapp);
  color: #033618;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
  .hero__grid,
  .split,
  .areas,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .work-gallery__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust-strip ul {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .header-actions .header-phone {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    padding: 20px;
    display: none;
    flex-direction: column;
    justify-content: flex-start;
    overflow-y: auto;
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
    z-index: 99;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 100%;
  }

  .main-nav a {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
  }

  .main-nav-footer {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    margin-top: 24px;
  }

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

  .work-gallery__grid {
    grid-template-columns: 1fr;
  }

  .trust-strip ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .section {
    padding: 48px 0;
  }

  .floating-cta {
    left: 12px;
    right: 12px;
    bottom: max(12px, env(safe-area-inset-bottom));
  }

  .floating-cta a {
    flex: 1;
    font-size: 0.9rem;
    padding: 12px;
  }

  .site-footer {
    padding-bottom: calc(112px + env(safe-area-inset-bottom, 0px));
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

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

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

  .btn-row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}

/* ==========================================================================
   Prefers Reduced Motion
   ========================================================================== */

@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;
  }
}