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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #2cb6b9 0%, #1e8e92 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    text-align: center;
}

.container {
    max-width: 600px;
    background: rgba(255, 255, 255, 0.9);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #2cb6b9;
}

p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #666;
}

a {
    display: inline-block;
    background: #207f81;
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(44, 182, 185, 0.3);
}

    a:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(44, 182, 185, 0.5);
        background: #1e8e92;
    }

.error-icon {
    font-size: 5rem;
    color: #2cb6b9;
    margin-bottom: 1rem;
}