/* ==========================================================================
   Civitas Contracting Incorporated - Modern Design System Stylesheet
   ========================================================================== */

/* 1. Foundations & Reset
   ========================================================================== */
@layer reset, base, theme, components, utilities;

@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -moz-tab-size: 4;
    tab-size: 4;
  }

  body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
    scrollbar-gutter: stable;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
  }

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

  button, input, select, textarea {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
  }

  button {
    cursor: pointer;
  }

  ul, ol {
    list-style: none;
  }

  a {
    text-decoration: none;
    color: inherit;
  }

  /* Skip link for accessibility */
  .skip-link {
    position: absolute;
    top: -100px;
    left: 20px;
    background: var(--color-primary);
    color: var(--color-bg);
    padding: 0.8rem 1.5rem;
    font-weight: 600;
    border-radius: 4px;
    z-index: 9999;
    transition: top 0.2s ease;
  }

  .skip-link:focus {
    top: 20px;
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
  }
}

/* 2. Design Tokens (Theme)
   ========================================================================== */
@layer theme {
  :root {
    /* Color Palette - Tiers 1 & 2 (Literal & Semantic) */
    --color-slate-900: #0f172a;
    --color-slate-800: #1e293b;
    --color-slate-700: #334155;
    --color-slate-500: #64748b;
    --color-slate-100: #f1f5f9;
    --color-slate-50: #f8fafc;
    
    --color-amber-700: #b45309;
    --color-amber-600: #d97706;
    --color-amber-500: #f59e0b;
    --color-amber-100: #fef3c7;
    
    --color-cream-100: #fcfbf9;
    --color-cream-200: #f5f3ef;
    --color-cream-300: #e8e5de;
    
    /* Dynamic Theme Token Setup */
    --color-primary: var(--color-slate-900);
    --color-primary-dark: #090d16;
    --color-accent: var(--color-amber-700);
    --color-accent-hover: var(--color-amber-600);
    --color-accent-light: var(--color-amber-100);
    --color-bg: var(--color-cream-100);
    --color-bg-light: var(--color-cream-200);
    --color-bg-border: var(--color-cream-300);
    --color-text: var(--color-slate-800);
    --color-text-light: var(--color-slate-500);
    --color-card-bg: #ffffff;
    
    /* Layout / Dimensions */
    --header-height-max: 96px;
    --header-height-min: 72px;
    --container-max-width: 1280px;
    
    /* Shadows - Soft soft soft */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Fonts & Weights */
    --font-family-headings: 'Outfit', sans-serif;
    --font-family-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  }

  /* Native Dark Mode Settings */
  @media (prefers-color-scheme: dark) {
    :root {
      --color-primary: var(--color-cream-100);
      --color-primary-dark: #ffffff;
      --color-accent: var(--color-amber-600);
      --color-accent-hover: var(--color-amber-500);
      --color-accent-light: rgba(217, 119, 6, 0.15);
      --color-bg: #090d16;
      --color-bg-light: #0f172a;
      --color-bg-border: #1e293b;
      --color-text: #e2e8f0;
      --color-text-light: #94a3b8;
      --color-card-bg: #0f172a;
      
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
      --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
    }
  }
}

/* 3. Base Layout & Typography
   ========================================================================== */
@layer base {
  .container {
    inline-size: 100%;
    max-inline-size: var(--container-max-width);
    margin-inline: auto;
    padding-inline: 1.5rem;
  }

  .grid {
    display: grid;
    gap: 2rem;
  }

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

  @media (min-width: 768px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
  }

  @media (min-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
  }

  .section {
    padding-block: clamp(4rem, 8dvh, 7rem);
  }

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

  .bg-dark {
    background-color: var(--color-slate-900);
    color: #e2e8f0;
  }

  /* Typography */
  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-headings);
    color: var(--color-primary);
    font-weight: 700;
    line-height: 1.25;
    text-wrap: balance;
  }

  p {
    text-wrap: pretty;
    margin-block-end: 1rem;
  }

  p:last-child {
    margin-block-end: 0;
  }

  .section-header {
    max-inline-size: 680px;
    margin-inline: auto;
    margin-block-end: clamp(2.5rem, 5dvh, 4rem);
  }

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

  .section-subtitle {
    display: inline-block;
    font-family: var(--font-family-headings);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-block-end: 0.75rem;
  }

  .section-subtitle.light {
    color: var(--color-amber-500);
  }

  .section-title {
    font-size: clamp(2rem, 4dvw, 2.75rem);
    margin-block-end: 1rem;
  }

  .section-title.light {
    color: #ffffff;
  }

  .section-desc {
    color: var(--color-text-light);
    font-size: 1.125rem;
  }
}

/* 4. Component Styles
   ========================================================================== */
@layer components {
  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family-headings);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.85rem 1.8rem;
    border-radius: 4px;
    transition: all var(--transition-fast);
    outline: none;
  }

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

  .btn-sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.875rem;
  }

  .btn-lg {
    padding: 1.1rem 2.2rem;
    font-size: 1.05rem;
  }

  .btn-primary {
    background-color: var(--color-accent);
    color: #ffffff;
  }

  .btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.35);
  }

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

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

  .btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-bg);
    transform: translateY(-2px);
  }

  .btn-block {
    display: flex;
    width: 100%;
  }

  /* Header & Sticky Shrink */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height-max);
    z-index: 100;
    transition: height var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal);
    border-block-end: 1px solid transparent;
  }

  .header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
  }

  /* Logo Image styles */
  .logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
    display: block;
    background-color: #ffffff; /* Contrast and clean presentation */
    border: 1px solid var(--color-bg-border);
    border-radius: 4px;
    padding: 4px 10px;
    box-shadow: var(--shadow-sm);
    transition: height var(--transition-normal), padding var(--transition-normal);
  }

  .site-header.scrolled .logo-img {
    height: 38px;
    padding: 2px 8px;
  }

  .footer-logo-img {
    height: 52px;
    background-color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 6px 12px;
    box-shadow: none;
  }

  /* Navigation */
  .nav-list {
    display: flex;
    gap: 1.5rem;
  }

  .nav-link {
    font-family: var(--font-family-headings);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    padding: 0.5rem 0.2rem;
    border-block-end: 2px solid transparent;
    transition: all var(--transition-fast);
  }

  .nav-link:hover, .nav-link.active {
    color: var(--color-accent);
    border-block-end-color: var(--color-accent);
  }

  .nav-toggle {
    display: none;
  }

  /* Sticky scrolled state (JS triggered fallback & Scroll timeline) */
  .site-header.scrolled {
    height: var(--header-height-min);
    background-color: rgba(var(--color-bg-rgb, 252, 251, 249), 0.85);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border-block-end-color: var(--color-bg-border);
    box-shadow: var(--shadow-md);
  }
  
  @media (prefers-color-scheme: dark) {
    .site-header.scrolled {
      --color-bg-rgb: 9, 13, 22;
    }
  }

  /* Header Shrink via CSS-only Scroll-Driven Animation (Baseline support check) */
  @supports (animation-timeline: scroll()) {
    .site-header {
      animation: shrink-header linear both;
      animation-timeline: scroll();
      animation-range: 0px 100px;
    }

    .logo-img {
      animation: shrink-logo linear both;
      animation-timeline: scroll();
      animation-range: 0px 100px;
    }

    @keyframes shrink-header {
      to {
        height: var(--header-height-min);
        background-color: rgba(var(--color-bg-rgb, 252, 251, 249), 0.85);
        backdrop-filter: blur(12px) saturate(180%);
        -webkit-backdrop-filter: blur(12px) saturate(180%);
        border-block-end-color: var(--color-bg-border);
        box-shadow: var(--shadow-md);
      }
    }

    @keyframes shrink-logo {
      to {
        height: 38px;
        padding: 2px 8px;
      }
    }
  }

  /* Hero Section */
  .hero-section {
    position: relative;
    padding-block-start: calc(var(--header-height-max) + 2rem);
    padding-block-end: 4rem;
    min-block-size: 85dvb;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-image: url('assets/hero-bg.png');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    isolation: isolate;
  }

  .hero-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.75), rgba(15, 23, 42, 0.9));
    z-index: -1;
  }

  .hero-content {
    max-inline-size: 780px;
    color: #ffffff;
    margin-block-end: 2rem;
  }

  .hero-slogan {
    display: block;
    font-family: var(--font-family-headings);
    font-size: clamp(1.2rem, 2.5dvw, 1.6rem);
    font-weight: 700;
    color: var(--color-amber-500);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-block-end: 0.75rem;
  }

  .hero-badge {
    display: inline-block;
    background-color: var(--color-accent-light);
    border: 1px solid var(--color-accent);
    color: var(--color-amber-500);
    font-family: var(--font-family-headings);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    margin-block-end: 1.5rem;
  }

  .footer-slogan {
    font-family: var(--font-family-headings);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-amber-500);
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-block-start: 1.25rem;
    margin-block-end: 1.25rem;
  }

  .hero-heading {
    font-size: clamp(2.5rem, 5.5dvw, 4rem);
    line-height: 1.15;
    color: #ffffff;
    margin-block-end: 1.5rem;
  }

  .hero-subheading {
    font-size: clamp(1.05rem, 2dvw, 1.25rem);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
    margin-block-end: 2.5rem;
    text-wrap: pretty;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .hero-actions .btn-outline {
    border-color: #ffffff;
    color: #ffffff;
  }

  .hero-actions .btn-outline:hover {
    background-color: #ffffff;
    color: var(--color-slate-900);
  }

  /* Trust badges bar */
  .trust-bar {
    background-color: rgba(15, 23, 42, 0.85);
    border-block-start: 1px solid rgba(255, 255, 255, 0.1);
    border-block-end: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding-block: 1.2rem;
    margin-block-start: auto;
  }

  .trust-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem clamp(1.5rem, 3.5dvw, 3rem);
  }

  .trust-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
    font-weight: 500;
  }

  .trust-icon {
    inline-size: 16px;
    block-size: 16px;
    color: var(--color-amber-500);
  }

  /* About Us Section */
  .about-image-wrapper {
    position: relative;
    padding-block-end: 2rem;
  }

  .about-image-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    aspect-ratio: 4 / 3;
  }

  .about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .about-badge-card {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background-color: var(--color-slate-900);
    color: #ffffff;
    padding: 1.5rem;
    border-radius: 4px;
    border-left: 4px solid var(--color-accent);
    display: flex;
    flex-direction: column;
    max-width: 220px;
    box-shadow: var(--shadow-lg);
  }

  .about-badge-number {
    font-family: var(--font-family-headings);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-amber-500);
    line-height: 1;
    margin-block-end: 0.25rem;
  }

  .about-badge-text {
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: 0.02em;
  }

  .about-lead {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.5;
    margin-block-end: 1.5rem;
  }

  .about-text {
    color: var(--color-text-light);
    margin-block-end: 1rem;
  }

  .about-mission {
    display: flex;
    gap: 1rem;
    background-color: var(--color-bg-light);
    padding: 1.5rem;
    border-radius: 6px;
    margin-block: 1.5rem;
    border: 1px solid var(--color-bg-border);
  }

  .mission-icon-box {
    background-color: var(--color-accent-light);
    color: var(--color-accent);
    min-inline-size: 48px;
    block-size: 48px;
    border-radius: 4px;
    display: grid;
    place-content: center;
  }

  .mission-icon {
    inline-size: 24px;
    block-size: 24px;
  }

  .mission-title {
    font-size: 1.1rem;
    margin-block-end: 0.25rem;
  }

  .mission-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-block-end: 0;
  }

  .about-footer-text {
    font-style: italic;
    color: var(--color-text);
    border-left: 2px solid var(--color-accent);
    padding-left: 1rem;
    margin-block-start: 1.5rem;
  }

  /* Services Section */
  .service-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-bg-border);
    padding: 2.25rem;
    border-radius: 6px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
  }

  .service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
  }

  .service-icon-box {
    width: 60px;
    height: 60px;
    background-color: var(--color-bg-light);
    color: var(--color-accent);
    border-radius: 6px;
    display: grid;
    place-content: center;
    margin-block-end: 1.5rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
  }

  .service-card:hover .service-icon-box {
    background-color: var(--color-accent);
    color: #ffffff;
  }

  .service-icon {
    width: 28px;
    height: 28px;
  }

  .service-card-title {
    font-size: 1.35rem;
    margin-block-end: 0.75rem;
  }

  .service-card-desc {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-block-end: 1.5rem;
  }

  .service-bullet-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-block-start: 1px solid var(--color-bg-border);
    padding-block-start: 1.25rem;
  }

  .service-bullet-list li {
    font-size: 0.875rem;
    font-weight: 550;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .service-bullet-list li::before {
    content: "✓";
    color: var(--color-accent);
    font-weight: bold;
  }

  /* Why Choose Us Box */
  .why-choose-us-box {
    margin-block-start: 5rem;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-bg-border);
    border-radius: 8px;
    padding: 3.5rem 2.5rem;
    box-shadow: var(--shadow-md);
  }

  .why-title {
    font-size: 1.75rem;
    margin-block-end: 2.5rem;
  }

  .why-item {
    position: relative;
    padding-block-start: 1.5rem;
  }

  .why-bullet {
    font-family: var(--font-family-headings);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent-light);
    line-height: 1;
    position: absolute;
    top: -10px;
    left: 0;
    transition: color var(--transition-fast);
    z-index: 1;
  }

  .why-item:hover .why-bullet {
    color: var(--color-accent);
  }

  .why-item h4 {
    font-size: 1.1rem;
    margin-block-end: 0.5rem;
    position: relative;
    z-index: 2;
  }

  .why-item p {
    font-size: 0.9rem;
    color: var(--color-text-light);
  }

  /* Gallery & Comparison Slider */
  .slider-wrapper {
    max-inline-size: 960px;
    margin-inline: auto;
    margin-block-end: 3rem;
  }

  .comparison-slider {
    position: relative;
    inline-size: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 4px solid var(--color-bg-border);
  }

  .image-container {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
  }

  .slider-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .image-label {
    position: absolute;
    bottom: 20px;
    background-color: rgba(15, 23, 42, 0.75);
    color: #ffffff;
    font-family: var(--font-family-headings);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    letter-spacing: 0.05em;
    backdrop-filter: blur(4px);
    z-index: 4;
  }

  .before-label {
    left: 20px;
  }

  .after-label {
    right: 20px;
  }

  /* Clip the AFTER image container on the left side based on exposure */
  .image-after {
    clip-path: inset(0 0 0 var(--exposure));
    z-index: 3;
  }

  /* Invisible input overlay that handles mouse dragging / accessibility keys */
  .slider-range-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: col-resize;
    z-index: 10;
    margin: 0;
  }

  /* Visual Slider Line & Handle Button */
  .slider-handle-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--exposure);
    inline-size: 3px;
    background-color: #ffffff;
    transform: translateX(-50%);
    pointer-events: none;
    z-index: 8;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
  }

  .slider-handle-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    background-color: var(--color-accent);
    border: 3px solid #ffffff;
    border-radius: 50%;
    display: grid;
    place-content: center;
    color: #ffffff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
  }

  .slider-arrows {
    width: 18px;
    height: 18px;
  }

  /* Projects Grid */
  .projects-grid {
    margin-block-start: 2rem;
  }

  .project-item {
    position: relative;
    border-radius: 6px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  }

  .project-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
  }

  .project-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
  }

  .project-item:hover img {
    transform: scale(1.03);
  }

  .project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.3) 70%, transparent);
    padding: 2rem;
    color: #ffffff;
  }

  .project-info h3 {
    color: #ffffff;
    font-size: 1.25rem;
    margin-block-end: 0.25rem;
  }

  .project-info p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    margin-block-end: 0;
  }

  /* Timeline */
  .process-timeline {
    position: relative;
    max-inline-size: 800px;
    margin-inline: auto;
    padding-inline-start: 2.5rem;
  }

  .process-timeline::before {
    content: "";
    position: absolute;
    top: 5px;
    bottom: 5px;
    left: 17px;
    width: 2px;
    background-color: var(--color-bg-border);
  }

  .timeline-item {
    position: relative;
    margin-block-end: 3.5rem;
  }

  .timeline-item:last-child {
    margin-block-end: 0;
  }

  .timeline-badge {
    position: absolute;
    top: 0;
    left: -40px;
    width: 36px;
    height: 36px;
    background-color: var(--color-card-bg);
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    border-radius: 50%;
    display: grid;
    place-content: center;
    font-family: var(--font-family-headings);
    font-weight: 700;
    font-size: 0.95rem;
    z-index: 2;
    transition: all var(--transition-fast);
  }

  .timeline-item:hover .timeline-badge {
    background-color: var(--color-accent);
    color: #ffffff;
    transform: scale(1.1);
  }

  .timeline-content h3 {
    font-size: 1.25rem;
    margin-block-end: 0.5rem;
  }

  .timeline-content p {
    color: var(--color-text-light);
    font-size: 0.95rem;
  }

  /* Testimonials */
  .review-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-bg-border);
    padding: 2.5rem;
    border-radius: 6px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
  }

  .review-stars {
    color: var(--color-amber-600);
    font-size: 1.1rem;
    margin-block-end: 1rem;
  }

  .review-text {
    font-style: italic;
    color: var(--color-text);
    font-size: 0.975rem;
    line-height: 1.7;
    margin-block-end: 1.5rem;
    flex-grow: 1;
  }

  .review-author {
    border-block-start: 1px solid var(--color-bg-border);
    padding-block-start: 1rem;
    display: flex;
    flex-direction: column;
  }

  .author-name {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 0.95rem;
  }

  .author-location {
    font-size: 0.8rem;
    color: var(--color-text-light);
  }

  /* Areas Map & Placeholder */
  .areas-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-block-start: 2rem;
  }

  .areas-list li {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
  }

  .area-bullet-icon {
    inline-size: 18px;
    block-size: 18px;
    color: var(--color-accent);
    margin-block-start: 0.2rem;
  }

  .areas-list span {
    font-size: 0.975rem;
    color: var(--color-text);
  }

  .areas-map-wrapper {
    position: relative;
  }

  .map-placeholder {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-bg-border);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
  }

  /* Decorative Vector map presentation */
  .nyc-map-svg {
    flex-grow: 1;
    background-color: var(--color-bg-light);
    background-image: 
      radial-gradient(rgba(217, 119, 6, 0.1) 1.5px, transparent 1.5px),
      radial-gradient(rgba(15, 23, 42, 0.05) 1px, transparent 1px);
    background-size: 30px 30px, 15px 15px;
    position: relative;
    overflow: hidden;
  }

  .map-dot {
    position: absolute;
    width: 14px;
    height: 14px;
    background-color: var(--color-accent);
    border: 2px solid #ffffff;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(217, 119, 6, 0.5);
  }

  .map-dot::before {
    content: "";
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px solid var(--color-accent);
    opacity: 0;
    transform: scale(0.8);
    animation: pulse-ring 2s infinite;
  }

  @keyframes pulse-ring {
    0% { opacity: 0.8; transform: scale(0.8); }
    100% { opacity: 0; transform: scale(1.6); }
  }

  .map-dot span {
    position: absolute;
    bottom: calc(100% + 5px);
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-slate-900);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    white-space: nowrap;
    opacity: 0.9;
    pointer-events: none;
    box-shadow: var(--shadow-sm);
  }

  .dot-manhattan { top: 35%; left: 45%; }
  .dot-brooklyn { top: 60%; left: 52%; }
  .dot-queens { top: 45%; left: 68%; }
  .dot-bronx { top: 15%; left: 65%; }
  .dot-staten { top: 80%; left: 22%; }

  .map-overlay-text {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(4px);
    color: #ffffff;
    padding: 1.25rem;
    border-radius: 4px;
    box-shadow: var(--shadow-md);
  }

  .map-overlay-text h3 {
    color: #ffffff;
    font-size: 1.05rem;
    margin-block-end: 0.25rem;
  }

  .map-overlay-text p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    margin-block-end: 0;
  }

  /* FAQs - Details & Summary */
  .faq-accordion-wrapper {
    max-inline-size: 800px;
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .faq-item {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-bg-border);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
  }

  .faq-item[open] {
    border-color: var(--color-accent);
  }

  .faq-question {
    padding: 1.5rem;
    font-size: 1.075rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    list-style: none;
    position: relative;
    user-select: none;
    padding-inline-end: 3.5rem;
    font-family: var(--font-family-headings);
  }

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

  .faq-question::after {
    content: "+";
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    line-height: 1;
    color: var(--color-text-light);
    transition: transform var(--transition-normal);
  }

  .faq-item[open] .faq-question::after {
    content: "−";
    color: var(--color-accent);
  }

  .faq-answer {
    padding: 0 1.5rem 1.5rem 1.5rem;
    border-block-start: 1px solid var(--color-bg-border);
    background-color: var(--color-bg-light);
    font-size: 0.95rem;
    color: var(--color-text-light);
  }

  .faq-answer p {
    margin-block-end: 0;
  }

  /* Contact & Forms styling */
  .contact-info-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-inline-end: 2rem;
  }

  .contact-lead-text {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.8);
    margin-block-end: 3rem;
  }

  .contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-block-end: 3rem;
  }

  .contact-info-item {
    display: flex;
    gap: 1.25rem;
  }

  .contact-info-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-amber-500);
    border-radius: 4px;
    display: grid;
    place-content: center;
  }

  .contact-info-icon svg {
    width: 22px;
    height: 22px;
  }

  .contact-info-item span {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.5);
    margin-block-end: 0.25rem;
  }

  .info-link {
    font-family: var(--font-family-headings);
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
    transition: color var(--transition-fast);
  }

  .info-link:hover {
    color: var(--color-amber-500);
  }

  .info-text {
    font-family: var(--font-family-headings);
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
  }

  .license-alert {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.25rem;
    border-radius: 6px;
    display: flex;
    gap: 0.75rem;
    font-size: 0.9rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.75);
  }

  .alert-icon {
    color: var(--color-amber-500);
    font-weight: bold;
  }

  /* Form Container */
  .contact-form-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-bg-border);
    padding: 3rem 2.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-xl);
    color: var(--color-text);
  }

  .form-title {
    font-size: 1.6rem;
    margin-block-end: 0.5rem;
  }

  .form-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-block-end: 2rem;
  }

  /* Floating labels logic & form fields */
  .form-group {
    position: relative;
    margin-block-end: 1.75rem;
  }

  .form-control {
    width: 100%;
    background-color: var(--color-bg-light);
    border: 1.5px solid var(--color-bg-border);
    border-radius: 4px;
    padding: 1rem;
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
    outline: none;
  }

  .form-control:focus {
    border-color: var(--color-accent);
    background-color: var(--color-card-bg);
  }

  .text-area {
    min-block-size: 110px;
    resize: vertical;
  }

  .form-label {
    position: absolute;
    left: 1.1rem;
    top: 1rem;
    font-size: 0.925rem;
    color: var(--color-text-light);
    pointer-events: none;
    transition: transform var(--transition-fast), font-size var(--transition-fast), color var(--transition-fast);
    transform-origin: 0 0;
  }

  /* Float effect when populated or focused */
  .form-control:focus ~ .form-label,
  .form-control:not(:placeholder-shown) ~ .form-label {
    transform: translateY(-1.4rem) scale(0.85);
    color: var(--color-accent);
    background-color: var(--color-card-bg);
    padding-inline: 0.4rem;
    left: 0.8rem;
  }

  /* Adjust select menus (where label floats immediately because select is required) */
  select.form-control {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
  }

  .select-label {
    transform: translateY(-1.4rem) scale(0.85);
    background-color: var(--color-card-bg);
    padding-inline: 0.4rem;
    left: 0.8rem;
  }

  /* Native validation states styled with :user-invalid */
  .form-control:user-invalid {
    border-color: #ef4444;
  }
  .form-control:user-invalid ~ .form-label {
    color: #ef4444;
  }

  .error-msg {
    display: none;
    font-size: 0.8rem;
    color: #ef4444;
    margin-block-start: 0.35rem;
  }

  .form-control:user-invalid ~ .error-msg {
    display: block;
  }

  /* Modal Estimate Form Dialog */
  .estimate-modal {
    border: none;
    border-radius: 8px;
    padding: 0;
    max-width: 620px;
    width: calc(100% - 2rem);
    box-shadow: var(--shadow-xl);
    background-color: var(--color-card-bg);
    color: var(--color-text);
  }

  .estimate-modal::backdrop {
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
  }

  .modal-wrapper {
    padding: 3rem 2.5rem;
    position: relative;
  }

  .modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    line-height: 1;
    color: var(--color-text-light);
    transition: color var(--transition-fast);
  }

  .modal-close:hover {
    color: var(--color-accent);
  }

  .modal-title {
    font-size: 1.75rem;
    margin-block-end: 0.5rem;
  }

  .modal-subtitle {
    font-size: 0.925rem;
    color: var(--color-text-light);
    margin-block-end: 2.25rem;
  }

  /* Modal Reveal animations using @starting-style (native CSS transition for display) */
  .estimate-modal {
    transition: opacity 0.3s ease, transform 0.3s ease, display 0.3s allow-discrete;
    opacity: 0;
    transform: translateY(20px);
  }

  .estimate-modal[open] {
    opacity: 1;
    transform: translateY(0);

    @starting-style {
      opacity: 0;
      transform: translateY(20px);
    }
  }

  /* Footer */
  .site-footer {
    background-color: var(--color-slate-900);
    color: #94a3b8;
    border-block-start: 1px solid #1e293b;
  }

  .footer-top {
    padding-block: 5rem 4rem;
  }

  .footer-brand-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-block-start: 1.25rem;
    margin-block-end: 1rem;
    color: #94a3b8;
  }

  .footer-license {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-amber-500);
  }

  .footer-links h3, .footer-contact h3 {
    color: #ffffff;
    font-size: 1.1rem;
    margin-block-end: 1.5rem;
  }

  .footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
  }

  .footer-links a {
    font-size: 0.925rem;
    transition: color var(--transition-fast);
  }

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

  .footer-contact p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-block-end: 1rem;
  }

  .footer-contact a {
    color: #ffffff;
    transition: color var(--transition-fast);
  }

  .footer-contact a:hover {
    color: var(--color-amber-500);
  }

  .footer-bottom {
    border-block-start: 1px solid #1e293b;
    padding-block: 1.5rem;
    font-size: 0.825rem;
  }

  .footer-bottom-flex {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
    justify-content: space-between;
  }

  @media (min-width: 768px) {
    .footer-bottom-flex {
      flex-direction: row;
    }
  }

  .footer-bottom-links {
    display: flex;
    gap: 1.5rem;
  }

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

/* 5. Scroll Animations & Reveal Effects
   ========================================================================== */
@layer utilities {
  /* Scroll reveal support using native View Timeline */
  @media (prefers-reduced-motion: no-preference) {
    @supports ((animation-timeline: view()) and (animation-range: entry)) {
      @keyframes reveal-up {
        from {
          opacity: 0;
          transform: translateY(40px) scale(0.97);
        }
        to {
          opacity: 1;
          transform: translateY(0) scale(1);
        }
      }

      .card-reveal {
        animation: reveal-up auto linear both;
        animation-timeline: view();
        animation-range: entry 10% cover 40%;
      }
    }
  }

  /* Fallback transitions when View Timeline scroll animations are unsupported */
  .reveal-fallback {
    opacity: 0;
    transform: translateY(40px) scale(0.97);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .reveal-fallback.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  /* Responsive Adjustments for Mobile Nav Menu */
  @media (max-width: 1023px) {
    .site-header {
      background-color: var(--color-bg);
      border-block-end-color: var(--color-bg-border);
      height: var(--header-height-min);
    }
    
    .logo-img {
      height: 38px;
      padding: 2px 8px;
    }

    .main-nav {
      position: fixed;
      top: var(--header-height-min);
      left: 0;
      width: 100%;
      height: calc(100dvh - var(--header-height-min));
      background-color: var(--color-bg);
      border-block-start: 1px solid var(--color-bg-border);
      padding: 3rem 1.5rem;
      transform: translateX(-100%);
      transition: transform var(--transition-normal);
      z-index: 99;
      overflow-y: auto;
    }

    .main-nav.active {
      transform: translateX(0);
    }

    .nav-list {
      flex-direction: column;
      gap: 2rem;
      align-items: center;
    }

    .nav-link {
      font-size: 1.25rem;
      padding: 0.5rem 1rem;
    }

    .nav-toggle {
      display: block;
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 101;
    }

    .hamburger {
      position: relative;
      width: 20px;
      height: 2px;
      background-color: var(--color-primary);
      transition: background-color var(--transition-fast);
    }

    .hamburger::before, .hamburger::after {
      content: "";
      position: absolute;
      left: 0;
      width: 20px;
      height: 2px;
      background-color: var(--color-primary);
      transition: transform var(--transition-fast), top var(--transition-fast);
    }

    .hamburger::before { top: -6px; }
    .hamburger::after { top: 6px; }

    .nav-toggle[aria-expanded="true"] .hamburger {
      background-color: transparent;
    }

    .nav-toggle[aria-expanded="true"] .hamburger::before {
      transform: rotate(45deg);
      top: 0;
    }

    .nav-toggle[aria-expanded="true"] .hamburger::after {
      transform: rotate(-45deg);
      top: 0;
    }

    .header-cta {
      display: none;
    }
  }
}