*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Tahoma, Arial, sans-serif;
}

body{
    background:#f8fafc;
    color:#0f172a;
}

a{
    text-decoration:none;
    color:inherit;
}

.container{
    width:90%;
    max-width:1200px;
    margin:auto;
}

.main-header{
    background:#ffffff;
    border-bottom:1px solid #e5e7eb;
    position:sticky;
    top:0;
    z-index:100;
}

.header-content{
    height:78px;
    display:flex;
    align-items:center;
    justify-content:space-between;
}

.logo-box{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:24px;
    font-weight:800;
    color:#2563eb;
}

.logo-box img{
    width:52px;
    height:52px;
    object-fit:contain;
}

nav{
    display:flex;
    align-items:center;
    gap:22px;
    font-size:15px;
    font-weight:600;
}

nav a{
    color:#334155;
}

.login-link{
    background:#2563eb;
    color:#fff !important;
    padding:10px 18px;
    border-radius:14px;
}

.hero{
    min-height:680px;
    background:
        radial-gradient(circle at 15% 20%, rgba(37,99,235,.16), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(124,58,237,.14), transparent 25%),
        linear-gradient(135deg,#eff6ff,#ffffff 55%,#f5f3ff);
    display:flex;
    align-items:center;
}

.hero-content{
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:50px;
    align-items:center;
}

.badge{
    display:inline-block;
    background:#dbeafe;
    color:#1d4ed8;
    padding:9px 16px;
    border-radius:50px;
    font-size:14px;
    font-weight:700;
    margin-bottom:20px;
}

.hero h1{
    font-size:48px;
    line-height:1.35;
    color:#0f172a;
    margin-bottom:20px;
}

.hero p{
    font-size:18px;
    line-height:2;
    color:#475569;
    max-width:620px;
}

.hero-buttons{
    display:flex;
    gap:15px;
    margin-top:30px;
}

.btn{
    padding:14px 26px;
    border-radius:16px;
    font-weight:800;
    display:inline-block;
}

.btn.primary{
    background:#2563eb;
    color:#fff;
    box-shadow:0 14px 30px rgba(37,99,235,.25);
}

.btn.secondary{
    background:#fff;
    color:#2563eb;
    border:1px solid #bfdbfe;
}

.hero-card{
    background:#ffffff;
    border-radius:32px;
    padding:28px;
    box-shadow:0 25px 60px rgba(15,23,42,.12);
    border:1px solid #e5e7eb;
}

.card-title{
    font-size:22px;
    font-weight:900;
    margin-bottom:22px;
    color:#1e293b;
}

.student-row{
    display:flex;
    justify-content:space-between;
    align-items:center;
    background:#f8fafc;
    padding:16px 18px;
    border-radius:18px;
    margin-bottom:14px;
    font-size:17px;
}

.student-row.first{
    background:#fff7ed;
    border:1px solid #fed7aa;
}

.student-row strong{
    color:#2563eb;
}

.mini-note{
    margin-top:20px;
    background:#ecfeff;
    color:#0f766e;
    padding:14px;
    border-radius:16px;
    text-align:center;
    font-weight:700;
}

.features-section{
    padding:80px 0;
    background:#fff;
}

.features-section h2,
.pricing-section h2,
.cta-section h2{
    text-align:center;
    font-size:34px;
    margin-bottom:12px;
}

.section-desc{
    text-align:center;
    color:#64748b;
    font-size:17px;
    margin-bottom:40px;
}

.features-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:22px;
}

.feature-card{
    background:#f8fafc;
    border:1px solid #e5e7eb;
    border-radius:24px;
    padding:25px;
    text-align:center;
}

.feature-card .icon{
    font-size:38px;
    margin-bottom:14px;
}

.feature-card h3{
    font-size:20px;
    margin-bottom:10px;
    color:#1e293b;
}

.feature-card p{
    color:#64748b;
    line-height:1.8;
    font-size:15px;
}

.pricing-section{
    padding:70px 0;
    background:#f1f5f9;
}

.pricing-box{
    display:grid;
    grid-template-columns:1fr 350px;
    gap:30px;
    align-items:center;
}

.pricing-box h2{
    text-align:right;
}

.pricing-box p{
    color:#64748b;
    font-size:18px;
    line-height:1.9;
}

.price-card{
    background:#fff;
    border-radius:28px;
    padding:28px;
    text-align:center;
    box-shadow:0 18px 45px rgba(15,23,42,.10);
}

.price-card span{
    color:#64748b;
    font-weight:700;
}

.price-card strong{
    display:block;
    font-size:30px;
    color:#2563eb;
    margin:15px 0 22px;
}

.price-card a{
    display:block;
    background:#2563eb;
    color:#fff;
    padding:14px;
    border-radius:16px;
    font-weight:800;
}

.cta-section{
    padding:80px 0;
    text-align:center;
    background:linear-gradient(135deg,#1d4ed8,#7c3aed);
    color:#fff;
}

.cta-section p{
    margin:12px 0 28px;
    font-size:18px;
    color:#e0e7ff;
}

.cta-section .btn.primary{
    background:#fff;
    color:#2563eb;
}

footer{
    background:#0f172a;
    color:#cbd5e1;
    padding:25px 0;
    font-size:14px;
}

.footer-content{
    display:flex;
    justify-content:space-between;
    gap:15px;
}

@media(max-width:900px){

    .header-content{
        height:auto;
        padding:15px 0;
        flex-direction:column;
        gap:15px;
    }

    nav{
        flex-wrap:wrap;
        justify-content:center;
        gap:12px;
    }

    .hero{
        padding:55px 0;
    }

    .hero-content,
    .pricing-box{
        grid-template-columns:1fr;
    }

    .hero h1{
        font-size:34px;
    }

    .hero p{
        font-size:16px;
    }

    .features-grid{
        grid-template-columns:1fr;
    }

    .pricing-box h2{
        text-align:center;
    }

    .footer-content{
        flex-direction:column;
        text-align:center;
    }
}
.footer-links{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    justify-content:center;
}

.footer-links a{
    color:#cbd5e1;
    font-size:14px;
}

.footer-links a:hover{
    color:#fff;
}
.free-month {
    display: block;
    margin-top: 8px;
    color: #16a34a;
    font-size: 15px;
    font-weight: bold;
}
html,
body {
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
}

body {
    position: static;
}