:root {
      --bg-dark: #000000;
      --bg-navbar-dark: rgba(0, 0, 0, 0.85);
      --text-primary-dark: #ffffff;
      --text-secondary-dark: #b8b8b8;
      --bg-light: #f8f9fa;
      --bg-navbar-light: rgba(255, 255, 255, 0.85);
      --text-primary-light: #1a1a1f;
      --text-secondary-light: #4a4a4f;
      --accent-gold: #d4af37;
      --accent-gold-light: #f0c952;
      --accent-gold-dark: #b8941f;
      --transition: all 0.3s ease;
      
      --bg-body: var(--bg-dark);
      --bg-navbar: var(--bg-navbar-dark);
      --text-primary: var(--text-primary-dark);
      --text-secondary: var(--text-secondary-dark);
      --shadow-color: rgba(0, 0, 0, 0.3);
      --border-color: rgba(212, 175, 55, 0.1);
    }

    body.light-theme {
      --bg-body: var(--bg-light);
      --bg-navbar: var(--bg-navbar-light);
      --text-primary: var(--text-primary-light);
      --text-secondary: var(--text-secondary-light);
      --shadow-color: rgba(0, 0, 0, 0.1);
      --border-color: rgba(212, 175, 55, 0.2);
          }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: var(--bg-body);
      color: var(--text-primary);
      min-height: 100%;
      padding-top: 80px;
      transition: background-color 0.3s ease, color 0.3s ease;
    }

    html {
      height: 100%;
    }

    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: var(--bg-navbar);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      z-index: 1000;
      transition: var(--transition);
    }

    .navbar-container {
      max-width: 1400px;
      height: 85px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1.2rem 2rem;
    }

    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      text-decoration: none;
      color: var(--text-primary);
      transition: var(--transition);
    }

    .navbar-brand:hover,
    .navbar-brand:focus {
      transform: translateY(-2px);
      outline: none;
    }

    .logo {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-light) 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 1.2rem;
      color: var(--bg-dark);
      box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
    }

    .company-name {
      font-size: 1.3rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      
    }

    .nav-right {
      display: flex;
      align-items: center;
      gap: 2rem;
    }

    .nav-menu {
      display: flex;
      list-style: none;
      gap: 2.5rem;
      align-items: center;
    }

    .nav-link {
      color: var(--text-secondary);
      text-decoration: none;
      font-size: 1rem;
      font-weight: 500;
      position: relative;
      transition: var(--transition);
      padding: 0.5rem 0;
    }

    .nav-link:hover,
    .nav-link:focus {
      color: var(--text-primary);
      outline: none;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--accent-gold) 0%, var(--accent-gold-light) 100%);
      transition: width 0.3s ease;
    }

    .nav-link:hover::after,
    .nav-link:focus::after {
      width: 100%;
    }

    .nav-link.active {
      color: var(--accent-gold);
    }

    .nav-link.active::after {
      width: 100%;
    }

    .cta-button {
      background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-light) 100%);
      color: var(--bg-dark);
      padding: 0.75rem 1.75rem;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      font-size: 1rem;
      transition: var(--transition);
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
    }

    .cta-button:hover,
    .cta-button:focus {
      transform: translateY(-2px);
      box-shadow: 0 6px 25px rgba(212, 175, 55, 0.5);
      outline: 2px solid var(--accent-gold);
      outline-offset: 2px;
    }

    .theme-toggle {
      background: none;
      border: 2px solid var(--border-color);
      width: 44px;
      height: 44px;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      transition: var(--transition);
      color: var(--text-primary);
    }

    .theme-toggle:hover,
    .theme-toggle:focus {
      background: var(--accent-gold);
      border-color: var(--accent-gold);
      transform: rotate(20deg) scale(1.1);
      outline: 2px solid var(--accent-gold);
      outline-offset: 2px;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
      z-index: 1001;
    }

    .hamburger span {
      width: 28px;
      height: 3px;
      background: var(--text-primary);
      border-radius: 3px;
      transition: var(--transition);
    }

    .hamburger.active span:nth-child(1) {
      transform: rotate(45deg) translate(8px, 8px);
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
      transform: rotate(-45deg) translate(8px, -8px);
    }

    .demo-content {
      max-width: 1400px;
      margin: 4rem auto;
      padding: 2rem;
      text-align: center;
    }

    .demo-content h1 {
      font-size: 3rem;
      margin-bottom: 1rem;
      background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-gold) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .demo-content p {
      font-size: 1.2rem;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    @media (max-width: 768px) {
      .navbar-container {
        padding: 1rem 1.5rem;
      }

      .hamburger {
        display: flex;
      }

      .nav-right {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100%;
        background: var(--bg-navbar);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 6rem 2rem 2rem;
        gap: 2rem;
        align-items: flex-start;
        transition: right 0.4s ease;
        box-shadow: -5px 0 25px var(--shadow-color);
        border-left: 1px solid var(--border-color);
      }

      .nav-right.active {
        right: 0;
      }

      .nav-menu {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
        width: 100%;
      }

      .nav-link {
        font-size: 1.1rem;
        width: 100%;
      }

      .cta-button {
        width: 100%;
        text-align: center;
      }

      .theme-toggle {
        align-self: flex-start;
      }

      .company-name {
        font-size: 1.1rem;
      }

      /* .logo {
        width: 36px;
        height: 36px;
        font-size: 1rem;
      } */

      .demo-content h1 {
        font-size: 2rem;
      }

      .demo-content p {
        font-size: 1rem;
      }
    }

    @media (max-width: 480px) {
      .navbar-container {
        padding: 0.875rem 1rem;
      }

      .company-name {
        font-size: 1rem;
      }

      .logo {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
      }
    }

    /* Remove transparent navbar background on mobile */
@media (max-width: 768px) {
  .navbar,
  .nav-menu,
  .mobile-menu {
    /* background-color: #0a0e27 !important; or any solid color */
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
}


    /* Light theme styles */
body.light-theme {
  background-color: #f8fafc;        /* Light background */
  color: #0f172a;                   /* Dark text */
  height: 20px;
}

/* Adjust navbar for light mode */
body.light-theme .navbar,
body.light-theme .sticky-header {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* Links in light mode */
body.light-theme .nav-link {
  color: #334155;
}

body.light-theme .nav-link:hover,
body.light-theme .nav-link.active {
  color: #b45309; /* Amber accent in light mode */
}

/* CTA button in light mode */
body.light-theme .cta-button,
body.light-theme .btn-primary {
  background: linear-gradient(90deg, #fbbf24, #f59e0b);
  color: white;
}
/* Only make dark logo taller (in dark theme) */
body:not(.light-theme) #iris-logo {
  height: 50px !important;    /* ← Change this number to make it taller, e.g. 80px, 90px */
  width: auto !important;     /* Keeps proportions */
}

/* Keep light logo normal size */
body.light-theme #iris-logo {
  height: 180px !important;    /* ← Keep this smaller or same as before */
  width: auto !important;
}

/* link active new code */

.nav-link {
  position: relative;
  padding-bottom: 6px;
  transition: color 0.3s ease;
}

/* Active link text color (optional) */
.nav-link.active {
  color: #facc15; /* vibrant yellow */
}

/* Yellow underline */
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #facc15, #fde047);
  border-radius: 2px;
}

/* Hover effect (optional but nice) */
.nav-link:hover {
  color: #fde047;
}