* {
        font-family: "Vazirmatn", sans-serif;
        scroll-behavior: smooth;
      }

      /* استایل‌های جدید برای ناوبری */
      .nav-transparent {
        background: rgba(255, 255, 255, 0);
        backdrop-filter: blur(0);
        -webkit-backdrop-filter: blur(0);
        transition: all 0.5s ease;
      }

      .nav-scrolled {
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
      }

      .gradient-bg {
        background: radial-gradient(
          circle,
          rgba(15, 117, 129, 1) 10%,
          rgba(16, 69, 82, 1) 77%
        );
      }
      .service-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
      }
      .text-glow {
        text-shadow: 0 0 20px rgba(14, 165, 233, 0.5);
      }
      .parallax-bg {
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
      }
      @keyframes float {
        0%,
        100% {
          transform: translateY(0);
        }
        50% {
          transform: translateY(-20px);
        }
      }
      .floating {
        animation: float 6s ease-in-out infinite;
      }
      /* استایل جدید برای هدر تمام صفحه */
      #home {
        min-height: 100vh;
        height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
      }

      /* استایل‌های جدید برای دکمه در حالت‌های مختلف */
      .nav-btn-transparent {
        background: rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(5px);
        color: white;
        border: 1px solid rgba(255, 255, 255, 0.3);
      }

      .nav-btn-scrolled {
        background: radial-gradient(
          circle,
          rgba(15, 117, 129, 1) 10%,
          rgba(16, 69, 82, 1) 77%
        );
        color: white;
        border: none;
      }

      /* رفع مشکل هدر در موبایل */
      @media (max-width: 768px) {
        #home {
          padding-top: 80px;
          height: auto;
          min-height: calc(100vh - 80px);
        }
      }

      /* استایل‌های منوی همبرگر */
      .hamburger-menu {
        display: none;
        flex-direction: column;
        cursor: pointer;
        z-index: 100;
        width: 30px;
        height: 24px;
        justify-content: space-between;
      }

      .hamburger-menu span {
        width: 100%;
        height: 3px;
        background-color: white;
        transition: 0.3s;
        border-radius: 2px;
        display: block;
      }

      .hamburger-menu.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-6px, 6px);
      }

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

      .hamburger-menu.active span:nth-child(3) {
        transform: rotate(45deg) translate(-6px, -6px);
      }

      .hamburger-menu.scrolled span {
        background-color: #333;
      }

      /* منوی موبایل */
      .mobile-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        z-index: 999;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        padding: 100px 20px 20px;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
      }

      .mobile-menu.active {
        transform: translateX(0);
      }

      .mobile-menu a {
        display: block;
        padding: 15px;
        color: #333;
        font-size: 1.1rem;
        font-weight: 500;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
        text-align: right;
      }

      .mobile-menu a:hover {
        color: #0f7581;
        background: rgba(15, 117, 129, 0.05);
        padding-right: 25px;
      }

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

      /* دکمه بستن منو */
      .close-menu {
        position: absolute;
        top: 25px;
        left: 25px;
        background: #0f7581;
        color: white;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.2rem;
        cursor: pointer;
        z-index: 1000;
      }