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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #000000;
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    max-width: 600px;
    width: 100%;
    text-align: center;
}

.logo-container {
    margin-bottom: 30px;
}

.logo {
    width: 150px;
    height: 150px;
    border: 2px solid #00aaff;
    border-radius: 8px;
}

h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 40px;
    letter-spacing: 1px;
}

.verification-box {
    background-color: #0a0a0a;
    border: 1px solid #222222;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
}

label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
    color: #00aaff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

input {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    background-color: #000000;
    border: 2px solid #333333;
    border-radius: 4px;
    color: #ffffff;
    margin-bottom: 20px;
    transition: border-color 0.3s ease;
}

input:focus {
    outline: none;
    border-color: #00aaff;
}

input::placeholder {
    color: #666666;
}

button {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    background-color: #00aaff;
    color: #000000;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

button:hover {
    background-color: #0099ee;
}

button:active {
    transform: scale(0.98);
}

.result {
    background-color: #0a0a0a;
    border: 1px solid #222222;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
    animation: fadeIn 0.4s ease;
}

.result.hidden {
    display: none;
}

.result-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.result-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
}

.result-title.valid {
    color: #00ff88;
}

.result-title.invalid {
    color: #ff4444;
}

.cert-details {
    text-align: left;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #222222;
}

.cert-detail {
    display: flex;
    margin-bottom: 12px;
}

.cert-label {
    font-weight: 600;
    color: #00aaff;
    min-width: 100px;
}

.cert-value {
    color: #ffffff;
}

footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #222222;
}

.backed-by {
    font-size: 14px;
    color: #00aaff;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.social-links a {
    color: #ffffff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
    padding: 5px 10px;
}

.social-links a:hover {
    color: #00aaff;
}

.contact-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.contact-info a {
    color: #888888;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: #00aaff;
}

.separator {
    color: #444444;
    font-size: 13px;
}

.copyright {
    font-size: 12px;
    color: #666666;
    margin-top: 15px;
    letter-spacing: 1px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 22px;
        margin-bottom: 30px;
    }
    
    .logo {
        width: 120px;
        height: 120px;
    }
    
    .verification-box {
        padding: 20px;
    }
    
    .result {
        padding: 20px;
    }
    
    .result-icon {
        font-size: 36px;
    }
    
    .result-title {
        font-size: 20px;
    }
    
    .cert-label {
        min-width: 80px;
        font-size: 14px;
    }
    
    .cert-value {
        font-size: 14px;
    }
    
    .social-links {
        gap: 15px;
    }
    
    .social-links a {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    input, button {
        font-size: 14px;
        padding: 12px;
    }
    
    .cert-detail {
        flex-direction: column;
        margin-bottom: 15px;
    }
    
    .cert-label {
        margin-bottom: 5px;
    }
    
    .social-links {
        gap: 10px;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 5px;
    }
    
    .separator {
        display: none;
    }
}