/* -------------------------------------------------------------
   Focus iTech Premium Stylesheet
   Created: 2026-06-15
   Architecture: Cascade Layers + Modern CSS Custom Properties
   ------------------------------------------------------------- */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

/* Declare Cascade Layers */
@layer reset, base, layout, components, utilities, themes;

@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
  }
}

@layer base {
  :root {
    /* Design Tokens - HSL Values for dynamic opacity control */
    --hue-primary: 260;    /* Neon Indigo/Purple */
    --hue-secondary: 180;  /* Electric Teal/Cyan */
    --hue-accent: 320;     /* Vivid Pink/Magenta */
    
    --color-bg: #090d16;
    --color-bg-subtle: #0f1524;
    --color-bg-card: rgba(15, 22, 40, 0.6);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-glow: rgba(138, 92, 246, 0.2);
    
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-light: #ffffff;
    
    --color-primary: hsl(var(--hue-primary) 90% 66%);
    --color-secondary: hsl(var(--hue-secondary) 85% 50%);
    --color-accent: hsl(var(--hue-accent) 90% 60%);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Layout */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  }

  body {
    background-color: var(--color-bg);
    background-image: 
      radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
      radial-gradient(circle at 90% 80%, rgba(20, 184, 166, 0.08) 0%, transparent 40%),
      radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0) 0%, var(--color-bg) 100%);
    background-attachment: fixed;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  /* Headings with balanced wrapping */
  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text-light);
    font-weight: 700;
    line-height: 1.25;
    text-wrap: balance;
  }
  
  h1 {
    font-size: clamp(2.5rem, 5cqi, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
  }
  
  h2 {
    font-size: clamp(1.8rem, 3.5cqi, 2.75rem);
    letter-spacing: -0.01em;
    position: relative;
    margin-bottom: 1.5rem;
  }
  
  h3 {
    font-size: clamp(1.3rem, 2cqi, 1.8rem);
  }

  p {
    font-size: clamp(0.95rem, 1cqi + 0.5rem, 1.1rem);
    color: var(--color-text-muted);
    text-wrap: pretty;
  }

  /* Accessible outlines */
  a:focus-visible, 
  button:focus-visible, 
  input:focus-visible, 
  textarea:focus-visible,
  details summary:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 4px;
  }
  
  a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
  }

  /* Selection highlights */
  ::selection {
    background: rgba(139, 92, 246, 0.3);
    color: var(--color-text-light);
  }

  /* Premium scrollbar */
  ::-webkit-scrollbar {
    width: 10px;
    height: 10px;
  }
  
  ::-webkit-scrollbar-track {
    background: var(--color-bg);
  }
  
  ::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--color-bg);
    border-radius: 10px;
    transition: var(--transition-fast);
  }
  
  ::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
  }
}

@layer layout {
  .container {
    width: 100%;
    max-width: 1280px;
    margin-inline: auto;
    padding-inline: clamp(1rem, 5vw, 2.5rem);
  }
  
  /* Navigation Bar */
  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(9, 13, 22, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-normal);
  }
  
  .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4.5rem;
  }
  
  .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-light);
    letter-spacing: -0.01em;
  }
  
  .logo-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    box-shadow: 0 0 10px var(--color-primary);
  }
  
  nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
  }
  
  nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-muted);
  }
  
  nav a:hover, nav a.active {
    color: var(--color-text-light);
  }
  
  .nav-cta {
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    font-weight: 600;
  }
  
  .nav-cta:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
  }

  /* Grid Layouts */
  .grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
  }
  
  .grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  section {
    padding-block: clamp(4rem, 8vw, 7.5rem);
    position: relative;
  }

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

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

@layer components {
  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.975rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
  }
  
  .btn-primary {
    background: linear-gradient(135deg, var(--color-primary), hsl(var(--hue-primary) 90% 50%));
    color: var(--color-text-light);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.25);
  }
  
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(139, 92, 246, 0.4);
  }

  .btn-primary:active {
    transform: translateY(1px);
  }
  
  .btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
  }
  
  .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
  }

  /* Cards (Glassmorphism Core) */
  .card-glass {
    background: var(--color-bg-card);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    transition: var(--transition-normal);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  }
  
  .card-glass:hover {
    border-color: var(--color-border-glow);
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.1);
    transform: translateY(-4px);
  }

  /* Badge */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 1rem;
    border-radius: 100px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  /* Hero Section */
  .hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6.5rem;
    padding-bottom: 4rem;
  }
  
  .hero-content {
    max-width: 680px;
  }
  
  .hero-tagline {
    font-size: clamp(1.1rem, 2cqi, 1.4rem);
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--color-secondary);
  }
  
  .gradient-text {
    background: linear-gradient(135deg, var(--color-text-light) 30%, var(--color-primary) 70%, var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  .hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
  }
  
  .hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    transition: var(--transition-slow);
  }
  
  .hero-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .hero-image-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent, rgba(9, 13, 22, 0.6));
    pointer-events: none;
  }

  .hero-glow-back {
    position: absolute;
    width: 110%;
    height: 110%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 60%);
    filter: blur(20px);
    z-index: -1;
    animation: rotate-glow 20s linear infinite;
  }

  @keyframes rotate-glow {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
  }

  /* Services tabs Section */
  .section-header {
    text-align: center;
    max-width: 650px;
    margin-inline: auto;
    margin-bottom: 4rem;
  }

  .section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: 1rem auto 0;
    border-radius: 2px;
  }

  .services-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 3rem;
  }

  .tab-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    color: var(--color-text-muted);
    font-family: var(--font-heading);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
  }

  .tab-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-light);
  }

  .tab-btn.active {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(20, 184, 166, 0.15));
    border-color: var(--color-primary);
    color: var(--color-text-light);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.15);
  }

  .services-container {
    position: relative;
    min-height: 400px;
  }

  .service-panel {
    display: none;
    animation: fade-in-up 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }

  .service-panel.active {
    display: block;
  }

  @keyframes fade-in-up {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .service-panel-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
  }

  @media (min-width: 992px) {
    .service-panel-content {
      grid-template-columns: 1.2fr 1fr;
    }
  }

  .service-info h3 {
    font-size: 2rem;
    margin-bottom: 1.25rem;
  }

  .service-features-list {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    list-style: none;
  }

  .service-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 1.05rem;
  }

  .service-features-list li svg {
    flex-shrink: 0;
    color: var(--color-secondary);
    margin-top: 0.25rem;
  }

  /* Interactive Cost Calculator */
  .calculator-box {
    background: linear-gradient(145deg, rgba(15, 22, 40, 0.7), rgba(9, 13, 22, 0.8));
    border-radius: var(--radius-xl);
    padding: clamp(1.5rem, 4vw, 3rem);
    border: 1px solid var(--color-border);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
  }

  .calc-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  @media (min-width: 992px) {
    .calc-grid {
      grid-template-columns: 1.4fr 1fr;
    }
  }

  .calc-form-group {
    margin-bottom: 2rem;
  }

  .calc-label-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
  }

  .calc-label-header label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-text-light);
  }

  .calc-val {
    color: var(--color-secondary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
  }

  /* Custom Range Input */
  .slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    transition: var(--transition-fast);
  }

  .slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-secondary);
    cursor: pointer;
    box-shadow: 0 0 10px var(--color-secondary);
    transition: var(--transition-fast);
  }

  .slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
  }

  .slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-secondary);
    cursor: pointer;
    box-shadow: 0 0 10px var(--color-secondary);
    border: none;
    transition: var(--transition-fast);
  }

  .slider::-moz-range-thumb:hover {
    transform: scale(1.2);
  }

  /* Custom Checkbox Grid */
  .checkbox-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  @media (min-width: 576px) {
    .checkbox-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  .custom-checkbox-container {
    position: relative;
  }

  .custom-checkbox-input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
  }

  .custom-checkbox-box {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
  }

  .custom-checkbox-box::before {
    content: '';
    display: inline-block;
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 2px solid var(--color-text-muted);
    flex-shrink: 0;
    transition: var(--transition-fast);
  }

  .custom-checkbox-input:checked + .custom-checkbox-box {
    background: rgba(20, 184, 166, 0.05);
    border-color: var(--color-secondary);
    color: var(--color-text-light);
  }

  .custom-checkbox-input:checked + .custom-checkbox-box::before {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-size: 12px;
    background-position: center;
    background-repeat: no-repeat;
  }

  /* Cost summary box */
  .calc-summary {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
  }

  .calc-summary-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
  }

  .calc-price {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 800;
    color: var(--color-text-light);
    margin-block: 0.5rem 1.5rem;
    line-height: 1;
    display: flex;
    align-items: baseline;
    justify-content: center;
  }

  .price-suffix {
    font-size: 1rem;
    color: var(--color-text-muted);
    font-weight: 400;
    margin-left: 0.25rem;
  }

  /* Academic Accordion Details */
  .academy-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  @media (min-width: 992px) {
    .academy-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  .courses-accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  details[name="syllabus"] {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-normal);
  }

  details[name="syllabus"]:hover {
    border-color: rgba(255, 255, 255, 0.15);
  }

  details[name="syllabus"][open] {
    border-color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.1);
  }

  details[name="syllabus"] summary {
    list-style: none;
    padding: 1.25rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-text-light);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
  }

  details[name="syllabus"] summary::-webkit-details-marker {
    display: none;
  }

  details[name="syllabus"] summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-primary);
    transition: transform 0.3s ease;
  }

  details[name="syllabus"][open] summary::after {
    transform: rotate(45deg);
  }

  .details-body {
    padding: 0 1.5rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.25rem;
    font-size: 0.975rem;
    color: var(--color-text-muted);
  }

  .details-body ul {
    margin-left: 1.25rem;
    margin-top: 0.5rem;
  }

  .details-body li {
    margin-bottom: 0.25rem;
  }

  .syllabus-meta {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-secondary);
  }

  /* Google Verification Map & Details Section */
  .contact-box {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
  }

  @media (min-width: 992px) {
    .contact-box {
      grid-template-columns: 1.2fr 1fr;
    }
  }

  .contact-info-panel {
    padding: clamp(1.5rem, 4vw, 3rem);
  }

  .contact-meta-list {
    margin-block: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    list-style: none;
  }

  .contact-meta-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
  }

  .contact-meta-item svg {
    flex-shrink: 0;
    color: var(--color-primary);
    margin-top: 0.25rem;
  }

  .contact-meta-item h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
  }

  .contact-meta-item p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
  }

  .map-panel {
    position: relative;
    min-height: 300px;
    background: #0f1422;
    border-left: 1px solid var(--color-border);
  }

  @media (max-width: 991px) {
    .map-panel {
      border-left: none;
      border-top: 1px solid var(--color-border);
    }
  }

  /* Dynamic CSS Interactive Map Simulator */
  .mock-map {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
  }

  .mock-map-bg {
    width: 100%;
    height: 100%;
    background-color: #0d1220;
    background-image: 
      radial-gradient(#151d33 1px, transparent 1px),
      radial-gradient(#151d33 1.5px, transparent 1.5px);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    opacity: 0.7;
  }

  .mock-map-roads {
    position: absolute;
    inset: 0;
  }

  .mock-map-road {
    position: absolute;
    background: #192239;
  }

  .mock-map-road-h1 { top: 30%; left: 0; width: 100%; height: 8px; }
  .mock-map-road-h2 { top: 70%; left: 0; width: 100%; height: 12px; }
  .mock-map-road-v1 { top: 0; left: 25%; width: 10px; height: 100%; }
  .mock-map-road-v2 { top: 0; left: 65%; width: 8px; height: 100%; }

  .mock-map-pin {
    position: absolute;
    top: 50%;
    left: 45%;
    transform: translate(-50%, -100%);
    cursor: pointer;
    filter: drop-shadow(0 0 10px var(--color-primary));
    animation: float-pin 2.5s ease-in-out infinite;
  }

  @keyframes float-pin {
    0% { transform: translate(-50%, -100%) translateY(0); }
    50% { transform: translate(-50%, -100%) translateY(-6px); }
    100% { transform: translate(-50%, -100%) translateY(0); }
  }

  .mock-map-label {
    position: absolute;
    top: 38%;
    left: 45%;
    transform: translate(-50%, -100%);
    background: var(--color-bg);
    border: 1px solid var(--color-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
  }

  /* Native Dialog Popup Form */
  dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: none;
    background: transparent;
    padding: 0;
    max-width: min(550px, 90vw);
    width: 100%;
    z-index: 1000;
  }

  dialog::backdrop {
    background: rgba(4, 7, 13, 0.85);
    backdrop-filter: blur(8px);
    animation: fade-in-backdrop 0.3s ease forwards;
  }

  @keyframes fade-in-backdrop {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  .dialog-content {
    background: #0f1524;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
  }

  .dialog-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
  }

  .dialog-close:hover {
    color: var(--color-text-light);
  }

  .dialog-content h3 {
    margin-bottom: 0.5rem;
  }

  .dialog-content p {
    margin-bottom: 1.75rem;
  }

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

  .form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
  }

  .form-control {
    width: 100%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--color-text-light);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
  }

  .form-control:focus {
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.04);
    outline: none;
  }

  /* User interaction invalid styles */
  .form-control:user-invalid {
    border-color: #ef4444;
  }

  /* Footer */
  footer {
    background: #05080e;
    border-top: 1px solid var(--color-border);
    padding-block: 4rem 2rem;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
  }

  @media (min-width: 768px) {
    .footer-grid {
      grid-template-columns: 1.5fr repeat(3, 1fr);
    }
  }

  .footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .footer-col a {
    font-size: 0.95rem;
    color: var(--color-text-muted);
  }

  .footer-col a:hover {
    color: var(--color-text-light);
  }

  .footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
  }

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

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

  /* Scroll reveals */
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .reveal.active {
    opacity: 1;
    transform: translateY(0);
  }
}

@layer utilities {
  .text-primary { color: var(--color-primary); }
  .text-secondary { color: var(--color-secondary); }
  
  .flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}