/* ==========================================================================
   SHOEBILL RESTORATION PROS SYDNEY - MASTER STYLESHEET
   "Elegant Dark" Theme - High-Contrast, Sophisticated Obsidian Palette
   Zero-Dependency Pure CSS3 with Strict Responsive & Accessibility QA
   ========================================================================== */

/* --- CSS Variables & Design Tokens (Elegant Dark) --- */
:root {
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Primary Accent & Brand Tones */
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-primary-light: rgba(59, 130, 246, 0.15);
  --color-primary-glow: rgba(59, 130, 246, 0.3);
  --color-accent: #f97316;
  --color-accent-dark: #ea580c;
  --color-accent-light: rgba(249, 115, 22, 0.15);
  --color-emergency: #ef4444;

  /* Typography Colors */
  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-light: #64748b;
  --color-text-inverse: #0a0a0a;

  /* Backgrounds & Surfaces (Elegant Dark) */
  --color-bg-body: #0a0a0a;
  --color-bg-surface: #111111;
  --color-bg-subtle: #161616;
  --color-bg-dark: #0a0a0a;
  --color-bg-darker: #050505;
  --color-bg-card: #111111;
  --color-bg-card-hover: #171717;

  /* Borders */
  --color-border: #1e293b;
  --color-border-subtle: #334155;
  --color-border-focus: #3b82f6;

  /* Spacing & Sizing */
  --container-max-width: 1200px;
  --container-padding: 16px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.5), 0 2px 6px -2px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.6), 0 4px 8px -4px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 30px -6px rgba(0, 0, 0, 0.8), 0 8px 12px -6px rgba(0, 0, 0, 0.5);
  --shadow-blue-glow: 0 8px 25px -4px rgba(37, 99, 235, 0.35);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  background-color: var(--color-bg-body);
  color-scheme: dark;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-bg-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

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

ul, ol {
  list-style: none;
}

/* --- Typography System --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-main);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.65rem, 3.2vw, 2.4rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

p:last-child {
  margin-bottom: 0;
}

/* --- Layout Container --- */
.container {
  width: min(var(--container-max-width), calc(100% - (var(--container-padding) * 2)));
  margin-inline: auto;
}

.section {
  padding-block: clamp(48px, 6vw, 84px);
  position: relative;
}

.section-bg-surface {
  background-color: var(--color-bg-surface);
  border-block: 1px solid var(--color-border);
}

.section-bg-dark {
  background-color: #050505;
  color: var(--color-text-main);
  border-block: 1px solid var(--color-border);
}

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

.section-bg-dark p {
  color: var(--color-text-muted);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: clamp(32px, 4vw, 54px);
}

.section-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #60a5fa;
  background-color: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.section-tag-emergency {
  color: #f87171;
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.section-tag-dark {
  color: #38bdf8;
  background-color: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.section-desc {
  font-size: clamp(1rem, 1.15vw, 1.125rem);
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* --- Buttons & Action Links --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--color-primary-dark);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
  border-color: rgba(59, 130, 246, 0.4);
}

.btn-primary:hover, .btn-primary:focus-visible {
  background-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-blue-glow);
}

.btn-phone {
  background-color: #1e293b;
  color: #ffffff;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.btn-phone:hover, .btn-phone:focus-visible {
  background-color: #2563eb;
  border-color: #3b82f6;
  transform: translateY(-1px);
  box-shadow: var(--shadow-blue-glow);
}

.btn-secondary {
  background-color: #111111;
  color: #ffffff;
  border-color: var(--color-border-subtle);
}

.btn-secondary:hover, .btn-secondary:focus-visible {
  background-color: #1f293d;
  border-color: var(--color-primary);
}

.btn-white {
  background-color: #ffffff;
  color: #0a0a0a;
  border: 1px solid #ffffff;
  font-weight: 700;
}

.btn-white:hover {
  background-color: #e2e8f0;
  transform: translateY(-1px);
}

.btn-lg {
  padding: 16px 28px;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
}

.btn-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* --- 1. Top Information Bar --- */
.top-bar {
  background-color: #111111;
  color: #94a3b8;
  font-size: 0.8125rem;
  padding-block: 8px;
  border-bottom: 1px solid var(--color-border);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #94a3b8;
}

.top-bar-item svg {
  width: 14px;
  height: 14px;
  color: #38bdf8;
  flex-shrink: 0;
}

.top-bar-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(220, 38, 38, 0.2);
  color: #fca5a5;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
  border: 1px solid rgba(220, 38, 38, 0.4);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  background-color: #ef4444;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 rgba(239, 68, 68, 0.7);
  animation: pulseAnimation 2s infinite;
}

@keyframes pulseAnimation {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

.top-bar a:hover {
  color: #ffffff;
}

/* --- 2. Header & Main Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-lg);
  background-color: rgba(10, 10, 10, 0.98);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 20px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-img {
  height: 48px;
  width: auto;
  max-width: 250px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #cbd5e1;
  padding: 6px 4px;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link:focus-visible {
  color: #38bdf8;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: #161616;
  color: #ffffff;
  border: 1px solid var(--color-border);
}

.hamburger-line {
  width: 22px;
  height: 2px;
  background-color: #ffffff;
  margin-block: 2.5px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  border-radius: 2px;
}

.nav-toggle-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Overlay */
.mobile-nav-panel {
  display: none;
  background-color: #0a0a0a;
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  padding: 20px 16px 24px;
}

.mobile-nav-panel.is-open {
  display: block;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 20px;
}

.mobile-nav-link {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: #f8fafc;
  background-color: #111111;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-link:hover {
  background-color: #1a1a1a;
  color: #38bdf8;
}

.mobile-nav-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.mobile-contact-info {
  margin-top: 16px;
  padding: 12px;
  background-color: #111111;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --- 3. Hero Section (Elegant Dark Radial Backdrop) --- */
.hero-section {
  padding-block: clamp(36px, 5vw, 68px);
  background: radial-gradient(circle at top left, #161c26 0%, #0a0a0a 100%);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.hero-content {
  max-width: 640px;
}

.hero-title {
  margin-bottom: 1rem;
  color: #ffffff;
}

.hero-title-highlight {
  color: #3b82f6;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.25vw, 1.1875rem);
  line-height: 1.6;
  color: #94a3b8;
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 2rem;
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.highlight-icon {
  width: 22px;
  height: 22px;
  color: #f97316;
  flex-shrink: 0;
  margin-top: 2px;
}

.highlight-text strong {
  display: block;
  font-size: 0.875rem;
  color: #ffffff;
}

.highlight-text span {
  font-size: 0.8125rem;
  color: #94a3b8;
}

.hero-media-wrapper {
  position: relative;
}

.hero-media-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  background-color: #111111;
}

.hero-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  filter: brightness(0.92) contrast(1.05);
}

.hero-badge-overlay {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background-color: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #ffffff;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-badge-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-badge-left svg {
  width: 24px;
  height: 24px;
  color: #38bdf8;
  flex-shrink: 0;
}

.hero-badge-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 2px;
}

.hero-badge-sub {
  font-size: 0.75rem;
  color: #94a3b8;
}

.hero-badge-cta {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #f97316;
  white-space: nowrap;
}

/* --- 4. Services Section --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.service-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #3b82f6;
}

.service-card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  background-color: #161616;
  overflow: hidden;
}

.service-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  filter: brightness(0.9) contrast(1.05);
}

.service-card:hover .service-card-img {
  transform: scale(1.04);
  filter: brightness(1);
}

.service-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(4px);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.service-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: rgba(59, 130, 246, 0.15);
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.service-card-icon svg {
  width: 22px;
  height: 22px;
}

.service-card-title {
  font-size: 1.25rem;
  margin-bottom: 10px;
  color: #ffffff;
}

.service-card-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.service-card-features {
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
  margin-bottom: 18px;
}

.service-card-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84375rem;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.service-card-features li:last-child {
  margin-bottom: 0;
}

.service-card-features svg {
  width: 14px;
  height: 14px;
  color: #38bdf8;
  flex-shrink: 0;
}

.service-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* --- 5. Why Choose Us Section --- */
.why-choose-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-box {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.feature-box:hover {
  transform: translateY(-2px);
  border-color: #334155;
  background-color: var(--color-bg-card-hover);
}

.feature-box-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: rgba(249, 115, 22, 0.15);
  color: #f97316;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 1px solid rgba(249, 115, 22, 0.3);
}

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

.feature-box-title {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: #ffffff;
}

.feature-box-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --- 6. Service Areas Section --- */
.service-areas-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 36px;
  align-items: center;
}

.service-areas-info h3 {
  margin-bottom: 12px;
  color: #ffffff;
}

.service-areas-info p {
  margin-bottom: 20px;
}

.areas-chips-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.area-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: #161616;
  border: 1px solid var(--color-border);
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: #f8fafc;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.area-chip:hover {
  background-color: #1e293b;
  border-color: #3b82f6;
  color: #38bdf8;
}

.area-chip svg {
  width: 14px;
  height: 14px;
  color: #38bdf8;
}

.location-card {
  background-color: #111111;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.location-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.location-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: rgba(59, 130, 246, 0.15);
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.location-icon svg {
  width: 20px;
  height: 20px;
}

.location-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  font-size: 0.875rem;
}

.location-detail-item strong {
  display: block;
  color: #ffffff;
  margin-bottom: 2px;
}

.location-detail-item span {
  color: var(--color-text-muted);
}

/* --- 7. Our Process Section --- */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
  position: relative;
}

.process-step-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.process-step-card:hover {
  transform: translateY(-2px);
  border-color: #3b82f6;
  background-color: var(--color-bg-card-hover);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #2563eb;
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 800;
  margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.4);
}

.process-step-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
  color: #ffffff;
}

.process-step-card p {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

/* --- 8. FAQ Section --- */
.faq-container {
  max-width: 840px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-card);
  overflow: hidden;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.faq-item[open] {
  border-color: #3b82f6;
  box-shadow: var(--shadow-sm);
  background-color: #141414;
}

.faq-question {
  padding: 18px 22px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
  list-style: none;
}

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

.faq-chevron {
  width: 20px;
  height: 20px;
  color: var(--color-text-light);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
  color: #38bdf8;
}

.faq-answer {
  padding: 0 22px 20px;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: #94a3b8;
  border-top: 1px solid transparent;
}

.faq-item[open] .faq-answer {
  border-top-color: var(--color-border);
  padding-top: 12px;
}

/* --- 9. Contact / Quote Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: flex-start;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background-color: rgba(59, 130, 246, 0.15);
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.contact-info-icon svg {
  width: 20px;
  height: 20px;
}

.contact-info-text strong {
  display: block;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  margin-bottom: 2px;
}

.contact-info-text a, .contact-info-text span {
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
}

.contact-info-text a:hover {
  color: #38bdf8;
}

.form-wrapper {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 36px);
  box-shadow: var(--shadow-xl);
}

.form-header {
  margin-bottom: 24px;
}

.form-header h3 {
  font-size: 1.45rem;
  margin-bottom: 6px;
  color: #ffffff;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #f8fafc;
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.9375rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: #0a0a0a;
  color: #f8fafc;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: #64748b;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
  background-color: #0d0d0d;
}

.form-select option {
  background-color: #111111;
  color: #f8fafc;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-note {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 10px;
  line-height: 1.4;
}

.form-status-msg {
  display: none;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  margin-top: 16px;
  font-size: 0.875rem;
}

.form-status-msg.is-success {
  display: block;
  background-color: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.form-status-msg.is-info {
  display: block;
  background-color: rgba(59, 130, 246, 0.15);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

/* --- 10. Final CTA Banner (Dark Radial Theme) --- */
.final-cta-section {
  background: radial-gradient(circle at center, #1e293b 0%, #0a0a0a 100%);
  color: #ffffff;
  padding-block: clamp(48px, 6vw, 76px);
  text-align: center;
  border-block: 1px solid var(--color-border);
}

.final-cta-content {
  max-width: 760px;
  margin-inline: auto;
}

.final-cta-content h2 {
  color: #ffffff;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 12px;
}

.final-cta-content p {
  color: #94a3b8;
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  margin-bottom: 28px;
}

.final-cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

/* --- 11. Footer & Socials --- */
.site-footer {
  background-color: #050505;
  color: #94a3b8;
  border-top: 1px solid var(--color-border);
  padding-top: clamp(48px, 5vw, 68px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: clamp(24px, 3.5vw, 48px);
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.875rem;
  line-height: 1.6;
  margin-block: 14px 20px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  color: #94a3b8;
}

.footer-links a:hover {
  color: #38bdf8;
  text-decoration: underline;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: #94a3b8;
  margin-bottom: 12px;
}

.footer-contact-list svg {
  width: 16px;
  height: 16px;
  color: #38bdf8;
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-list a {
  color: #cbd5e1;
}

.footer-contact-list a:hover {
  color: #ffffff;
}

/* Social Media Section in Footer */
.social-icons-wrapper {
  margin-top: 14px;
}

.social-icons-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.social-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.06);
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: all var(--transition-fast);
}

.social-icon-btn svg {
  width: 17px;
  height: 17px;
}

.social-icon-btn:hover, .social-icon-btn:focus-visible {
  background-color: #2563eb;
  color: #ffffff;
  border-color: #3b82f6;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.footer-bottom {
  padding-block: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8125rem;
  color: #64748b;
}

.footer-bottom a {
  color: #94a3b8;
}

.footer-bottom a:hover {
  color: #ffffff;
}

/* --- 404 Error Page --- */
.error-page-wrapper {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: 60px;
  background-color: var(--color-bg-body);
}

.error-card {
  max-width: 540px;
  background-color: #111111;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  box-shadow: var(--shadow-xl);
}

.error-code {
  font-size: 4.5rem;
  font-weight: 900;
  color: #3b82f6;
  line-height: 1;
  margin-bottom: 12px;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS & QA GUARDS
   1920px, 1440px, 1366px, 1280px, 1200px, 1024px, 768px, 480px, 390px, 375px
   ========================================================================== */

/* 1024px and below: Transition Header smoothly to Mobile Hamburger */
@media (max-width: 1024px) {
  .nav-desktop {
    display: none;
  }

  .nav-toggle-btn {
    display: flex;
  }

  .header-actions .btn-primary {
    display: none; /* keep clean in header, show in mobile drawer */
  }

  .service-areas-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

/* 768px and below (Tablet / Large Mobile) */
@media (max-width: 768px) {
  .top-bar-inner {
    justify-content: center;
    text-align: center;
  }

  .top-bar-left, .top-bar-right {
    justify-content: center;
    gap: 10px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

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

  .location-details-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .final-cta-buttons {
    flex-direction: column;
  }

  .final-cta-buttons .btn {
    width: 100%;
  }
}

/* 480px, 390px, 375px (Small Screen Safeguards) */
@media (max-width: 480px) {
  :root {
    --container-padding: 14px;
  }

  .header-inner {
    height: 68px;
  }

  .logo-img {
    height: 40px;
    max-width: 200px;
  }

  .header-actions .btn-phone {
    padding: 8px 12px;
    font-size: 0.8125rem;
  }

  .header-actions .btn-phone span {
    display: none; /* keep phone icon visible, save space */
  }

  .hero-highlights {
    grid-template-columns: 1fr;
  }

  .hero-badge-overlay {
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    margin-top: 12px;
    flex-direction: column;
    text-align: center;
  }

  .hero-badge-left {
    flex-direction: column;
  }

  .btn {
    padding: 12px 18px;
    font-size: 0.9rem;
  }

  .form-wrapper {
    padding: 20px 16px;
  }
}

/* Accessibility: 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;
  }
}