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


html {
    scroll-behavior: smooth;
}


body {
    font-family: Arial, sans-serif;
    background: #f5f7fb;
    color: #222;
}


/* NAVBAR */

.navbar {
    height: 70px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 8%;

    background: white;

    border-bottom: 1px solid #ddd;

    position: sticky;
    top: 0;

    z-index: 100;
}


.logo {
    font-size: 24px;
    font-weight: bold;
}


.nav-links {
    display: flex;
    gap: 30px;
}


.nav-links a {
    color: #333;
    text-decoration: none;
}


.nav-links a:hover {
    color: #4f46e5;
}


/* HERO */

.hero {
    min-height: 500px;

    display: flex;
    align-items: center;
    justify-content: center;

    text-align: center;

    padding: 60px 20px;

    background: white;
}


.hero-content {
    max-width: 700px;
}


.badge {
    display: inline-block;

    padding: 8px 14px;

    border-radius: 20px;

    background: #eee;

    font-size: 13px;
    font-weight: bold;

    margin-bottom: 20px;
}


.hero h1 {
    font-size: 52px;

    margin-bottom: 20px;
}


.hero p:not(.badge) {
    font-size: 18px;

    line-height: 1.6;

    color: #666;

    margin-bottom: 30px;
}


button {
    border: none;

    background: #4f46e5;

    color: white;

    padding: 12px 22px;

    border-radius: 8px;

    cursor: pointer;

    font-size: 15px;
}


button:hover {
    background: #3730a3;
}


/* TEST SECTION */

.tests-section {
    padding: 80px 8%;
}


.tests-section > h2,
.section-description {
    text-align: center;
}


.tests-section h2 {
    font-size: 32px;

    margin-bottom: 10px;
}


.section-description {
    color: #666;

    margin-bottom: 40px;
}


/* TEST CARDS */

.test-grid {
    max-width: 1100px;

    margin: auto;

    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 25px;
}


.test-card {
    background: white;

    padding: 30px;

    border-radius: 14px;

    border: 1px solid #ddd;
}


.icon {
    font-size: 35px;

    margin-bottom: 15px;
}


.test-card h3 {
    margin-bottom: 10px;
}


.test-card p {
    color: #666;

    line-height: 1.5;

    margin-bottom: 20px;
}


.result {
    margin-top: 15px;

    padding: 10px;

    background: #f3f4f6;

    border-radius: 6px;

    font-size: 14px;
}


/* STATUS */

.status-box {
    max-width: 1100px;

    margin: 50px auto 0;

    padding: 30px;

    text-align: center;

    background: white;

    border-radius: 14px;

    border: 1px solid #ddd;
}


#overall-status {
    margin-top: 15px;

    font-weight: bold;

    color: #4f46e5;
}


/* ABOUT */

.about {
    background: white;

    padding: 80px 20px;

    text-align: center;
}


.about h2 {
    margin-bottom: 20px;
}


.about p {
    max-width: 700px;

    margin: 10px auto;

    color: #666;

    line-height: 1.6;
}


/* FOOTER */

footer {
    padding: 25px;

    text-align: center;

    background: #111;

    color: white;
}


/* MOBILE */

@media (max-width: 700px) {

    .navbar {
        padding: 0 20px;
    }


    .nav-links {
        gap: 12px;
    }


    .hero h1 {
        font-size: 38px;
    }


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

}