/* ========================================
     Robert M. Ross Medical Practice — Styles
     ======================================== */

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

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
  }

  body {
    overflow-x: hidden;
  }

  /* Selection color */
  ::selection {
    background-color: #0d9488;
    color: white;
  }

  /* ========================================
     Navigation
     ======================================== */
  #navbar {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  }

  #navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
  }

  /* ========================================
     Hero
     ======================================== */
  .hero-badge {
    animation: pulse-subtle 3s ease-in-out infinite;
  }

  @keyframes pulse-subtle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
  }

  /* ========================================
     Service Cards
     ======================================== */
  .service-card {
    transform: translateY(0);
  }

  .service-card:hover {
    transform: translateY(-4px);
  }

  /* ========================================
     Scroll Reveal (progressive enhancement)
     ======================================== */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
  }

  /* Default state: always visible for accessibility */
  @media (prefers-reduced-motion: reduce) {
    .reveal {
      opacity: 1;
      transform: none;
      transition: none;
    }
  }

  /* ========================================
     Mobile Menu
     ======================================== */
  #mobile-menu {
    animation: slideDown 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .mobile-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f5f9;
  }

  .mobile-link:last-child {
    border-bottom: none;
  }

  /* ========================================
     Form Focus States
     ======================================== */
  input:focus, textarea:focus {
    outline: none;
  }

  /* ========================================
     Responsive adjustments
     ======================================== */
  @media (max-width: 767px) {
    .font-serif {
      line-height: 1.15;
    }
  }

  @media (min-width: 768px) and (max-width: 1023px) {
    html {
      scroll-padding-top: 90px;
    }
  }