:root {
            --navy: #001F3F;
            --slate: #2C3E50;
            --gray: #95A5A6;
            --light: #F8F9FA;
            --border-gray: #BDC3C7;
            --accent-blue: #00A8E8;
        }

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

        body {
            font-family: 'Vazirmatn', sans-serif;
            background-color: var(--light);
            color: var(--slate);
            line-height: 1.7;
        }

        header {
            background-color: var(--navy);
            padding: 1.5rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .logo {
            font-size: 2.3rem;
            font-weight: 800;
        }

        .logo span:first-child { color: var(--accent-blue); }
        .logo span:last-child { color: var(--border-gray); }

        .header-cta {
            padding: 1rem 2.2rem;
            background: linear-gradient(90deg, var(--navy), #009fd9);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1.15rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.4s ease;
            box-shadow: 0 6px 20px rgba(0,168,232,0.3);
            animation: pulse 2.5s infinite;
            font-family:'Vazirmatn' ;
        }

        .header-cta:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0,168,232,0.4);
        }

        @keyframes pulse {
            0% { box-shadow: 0 6px 20px rgba(0,168,232,0.3); }
            50% { box-shadow: 0 6px 30px rgba(0,168,232,0.5); }
            100% { box-shadow: 0 6px 20px rgba(0,168,232,0.3); }
        }

        main { max-width: 1400px; margin: 0 auto 5rem; padding: 0 2rem; }

        .section-title {
            text-align: center;
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--navy);
            margin-bottom: 0.5rem;
            position: relative;
        }

        .section-title::after {
            content: '';
            width: 100px;
            height: 5px;
            background: var(--accent-blue);
            display: block;
            margin: 1rem auto 0;
            border-radius: 3px;
        }

        .help-section {
            background-color: white;
            border-radius: 20px;
            padding: 3rem 2.5rem;
            margin-bottom: 4rem;
            box-shadow: 0 12px 35px rgba(0,0,0,0.1);
            border: 2px solid var(--navy);
        }

        .help-section h2 {
            font-size: 2.0rem;
            font-weight: 800;
            color: var(--navy);
            margin-bottom: 2rem;
        }

        .help-section h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--navy);
            margin-bottom: 2rem;
        }

        .help-section p {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: #4d4d4d;
            line-height: 1.8;
        }

        /* کارت‌های چرخشی سوالات متداول */
        .faq {
            display: flex;
            flex-direction: column;
            gap: 2rem;
            margin-top: 3rem;
        }

        .faq-item {
            background-color: #f9f9f9;
            padding: 1.5rem 2rem;
            border-radius: 15px;
            border: 1px solid var(--border-gray);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }

        .faq-item h4 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--navy);
            margin-bottom: 0.8rem;
        }

        .faq-item p {
            font-size: 1.1rem;
            color: var(--gray);
            display: none;
        }

        .faq-item.open p {
            display: block;
        }

        /* فوتر */
        footer {
            background-color: var(--navy);
            color: white;
            padding: 3rem 2rem 1.5rem;
            text-align: center;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--border-gray);
            text-decoration: none;
            font-size: 1.1rem;
            transition: color 0.3s;
        }

        .footer-links a:hover { color: var(--accent-blue); }

        .made-for {
            margin-top: 1.5rem;
            font-size: 1.1rem;
            color: var(--border-gray);
        }

        .made-for .heart {
            color: white;
            font-size: 1.4rem;
            margin-left: 0.5rem;
        }

        .copyright {
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 1rem;
        }

        @media (max-width: 768px) {
            .help-section { padding: 2rem 1.5rem; }
        }

            .highlight {
      color: #2563eb;
      font-weight: bold;
    }
            .nav-links{
            display: flex;
            gap: 2rem;
            align-items:center;
        }

        .nav-links a {
            color: var(--border-gray);
            text-decoration: none;
            font-weight:500;
            font-size: 1.05rem;
            position:relative;
            transition: all 0.3 ease;
        }

        .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    right: 0;
    width: 0%;
    height: 3px;
    background: var(--accent-blue);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: white;
}

.nav-links a:hover::after {
    width: 100%;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    right: 0;
    width: 0%;
    height: 3px;
    background: #009fd9;
    transition: width 0.3s ease;
    
}
@media (max-width: 768px) {
  header { flex-direction: column; gap: 1.5rem; }
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
}
.header-cta {
            padding: 1rem 2.2rem;
            background: linear-gradient(90deg, var(--navy),var(--navy));
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1.15rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.4s ease;
            box-shadow: 0 6px 20px rgba(0,168,232,0.3);
            animation: pulse 2.5s infinite;
            font-family:'Vazirmatn' ;
        }

        .header-cta:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0,168,232,0.4);
        }
                #logo-whyno{
            width: 75px ; 
            height: 75px ;
        }

        header {
      background-color: #001f3f;
        color:white;
                  padding: 1.5rem 2rem;
                  display: flex;
                  justify-content: space-between;
                  align-items: center;
                  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
                  position: sticky;
                  top: 0;
                  z-index: 100;
        transition:top 0.3s ease
    }

    .logo {
            display: flex;
            align-items: center;}


  footer {
            background-color: #001F3F;
            color: white;
            padding: 3rem 2rem 1.5rem;
            text-align: center;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--border-gray);
            text-decoration: none;
            font-size: 1.1rem;
            transition: color 0.3s;
        }

        .footer-links a:hover { color: var(--accent-blue); }

        .made-for {
            margin-top: 1.5rem;
            font-size: 1.1rem;
            color: var(--border-gray);
        }

        .made-for .heart {
            color: white;
            font-size: 1.4rem;
            margin-left: 0.5rem;
        }

        .copyright {
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 1rem;
        }            
   header h1{
    font-size: xx-large;
   }
.btn {
            padding: 1.1rem 2.8rem;
            border-radius: 14px;
            font-size: 1.25rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.4s ease;
            min-width: 190px;
        }

        .btn-login {
            background-color: var(--accent-blue);
            color: white;
            border: 3px solid white;
            font-family:'Vazirmatn' ;
        }

        .btn-login:hover {
            background-color: #008cc2;
            transform: translateY(-6px);
            box-shadow: 0 15px 35px rgba(0,168,232,0.4);
        }

        .btn-register {
            background-color: white;
            color: var(--accent-blue);
            border: 3px solid var(--accent-blue);
            font-weight: 700;
            font-family: 'Vazirmatn';
        }

        .btn-register:hover {
            background-color: #f0f8ff;
            transform: translateY(-6px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.2);
        }

        img{
            max-width: 100%;
            max-height: 50%;
            
        }

    .achievements {
      background: #f0f9ff;
      border-right: 4px solid #3b82f6;
      padding: 1rem 1.5rem;
      border-radius: 10px;
      margin: 1.5rem 0;
    }