/* ==========================================================================
   searles.ai Design System & Main Stylesheet
   Warm, Welcoming, and Professional Architecture
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Variables & Theme Configuration
   -------------------------------------------------------------------------- */
   :root {
    /* Color Palette - Warm & Light */
    --bg-light: #FAF9F6;         /* Soft off-white base */
    --bg-card: #FFFFFF;          /* Pure white for depth */
    --bg-card-hover: #FDFBFA;    /* Slight warmth on hover */
    
    --text-main: #2C3E50;        /* Deep slate for primary readability */
    --text-muted: #5A6C7D;       /* Softer slate for secondary text */
    
    --accent-color: #E07A5F;     /* Terracotta / Warm Orange */
    --accent-color-rgb: 224, 122, 95;
    --accent-secondary: #81B29A; /* Soft Sage Green */
    
    --border-color: rgba(44, 62, 80, 0.1);
    --border-color-glow: rgba(224, 122, 95, 0.3);
    
    /* Shadows */
    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 12px 32px rgba(44, 62, 80, 0.08);
    
    /* Typography Hooks */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-display: 'Outfit', 'Inter', sans-serif;
    
    /* Layout & Spacing Tokens */
    --max-width: 1200px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    /* Animation Timings */
    --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: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-Index Layers */
    --z-background: -1;
    --z-base: 1;
    --z-nav: 100;
    --z-modal: 1000;
  }
  
  /* --------------------------------------------------------------------------
     2. CSS Resets & Base Styles
     -------------------------------------------------------------------------- */
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: var(--font-sans);
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  /* Canvas Background */
  #networkCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: var(--z-background);
    pointer-events: none;
    opacity: 0.6;
  }
  
  /* Typography Utilities */
  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-main);
  }
  
  p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
  }
  
  a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
  }
  
  a:hover {
    color: var(--accent-secondary);
  }
  
  .text-gradient {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent; /* Fallback */
    display: inline-block;
  }
  
  .container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
  }
  
  /* --------------------------------------------------------------------------
     3. Navigation
     -------------------------------------------------------------------------- */
  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: var(--z-nav);
    transition: all var(--transition-normal);
    background: rgba(250, 249, 246, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
  }
  
  .navbar.scrolled {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
  }
  
  .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .brand-dot {
    color: var(--accent-color);
  }
  
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--accent-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(224, 122, 95, 0.2);
  }
  
  .btn-primary:hover {
    background-color: #d16b51;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(224, 122, 95, 0.3);
    color: #fff;
  }
  
  .btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: transparent;
    color: var(--text-main);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.95rem;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-normal);
  }
  
  .btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background-color: rgba(224, 122, 95, 0.05);
  }
  
  /* --------------------------------------------------------------------------
     4. Hero Section
     -------------------------------------------------------------------------- */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    position: relative;
  }
  
  .hero-content {
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
  }
  
  .hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(224, 122, 95, 0.1);
    color: var(--accent-color);
    border: 1px solid rgba(224, 122, 95, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  
  .hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
  }
  
  .hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto 3rem;
  }
  
  .typewriter-container {
    height: 1.5em; /* Reserve space for typing */
    display: block;
    margin-bottom: 1rem;
  }
  
  .typewriter-text {
    border-right: 2px solid var(--accent-color);
    padding-right: 4px;
    animation: blinkCursor 0.75s step-end infinite;
  }
  
  @keyframes blinkCursor {
    from, to { border-color: transparent }
    50% { border-color: var(--accent-color); }
  }
  
  .hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
  }
  
  /* --------------------------------------------------------------------------
     5. Services / Capabilities Section
     -------------------------------------------------------------------------- */
  .section {
    padding: 6rem 0;
    position: relative;
    z-index: var(--z-base);
  }
  
  .section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
  }
  
  .section-title {
    font-size: clamp(2rem, 3vw, 2.5rem);
  }
  
  .capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
  }
  
  .card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-soft);
  }
  
  .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
    opacity: 0;
    transition: opacity var(--transition-normal);
  }
  
  .card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--border-color-glow);
  }
  
  .card:hover::before {
    opacity: 1;
  }
  
  .card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(224, 122, 95, 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
  }
  
  .card-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
  }
  
  .card-desc {
    font-size: 0.95rem;
    margin-bottom: 0;
  }
  
  /* --------------------------------------------------------------------------
     6. Experience Section (About)
     -------------------------------------------------------------------------- */
  .experience-section {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
  }
  
  .experience-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }
  
  .experience-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
  }
  
  .experience-content p {
    font-size: 1.1rem;
  }
  
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  
  .stat-item {
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
  }
  
  .stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
  }
  
  .stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
  }
  
  @media (max-width: 992px) {
    .experience-grid {
      grid-template-columns: 1fr;
    }
  }
  
  /* --------------------------------------------------------------------------
     7. Footer & CTA
     -------------------------------------------------------------------------- */
  .cta-section {
    text-align: center;
    padding: 8rem 0;
  }
  
  .cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
  }
  
  .footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    background: var(--bg-card);
  }
  
  .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .footer-text {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
  }
  
  /* --------------------------------------------------------------------------
     8. Modal Component
     -------------------------------------------------------------------------- */
  .modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(250, 249, 246, 0.9);
    backdrop-filter: blur(8px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }
  
  .modal-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  .modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 3rem;
    width: 100%;
    max-width: 500px;
    position: relative;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  }
  
  .modal-overlay.active .modal-content {
    transform: translateY(0);
  }
  
  .modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
  }
  
  .modal-close:hover {
    color: var(--text-main);
    background: var(--bg-light);
  }
  
  .contact-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    color: var(--text-main);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    background: transparent;
    width: 100%;
    text-align: left;
    font-size: 1rem;
    font-family: inherit;
  }
  
  .contact-option:hover {
    border-color: var(--accent-color);
    background: rgba(224, 122, 95, 0.05);
  }
  
  .contact-option svg {
    color: var(--accent-color);
  }
  
  .clipboard-msg {
    font-size: 0.85rem;
    color: var(--accent-secondary);
    text-align: center;
    min-height: 1.5em;
    margin-top: 1rem;
  }
  
  /* Responsive */
  @media (max-width: 768px) {
    .hero {
      padding: 6rem 0 3rem;
    }
    .hero-actions {
      flex-direction: column;
    }
    .footer-content {
      flex-direction: column;
      gap: 1rem;
      text-align: center;
    }
    .modal-content {
      margin: 1rem;
      padding: 2rem;
    }
  }