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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(to bottom, #a8e6ff, #d4f1f9);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 1200px;
    padding: 20px;
}

#start-screen {
    background: linear-gradient(to bottom right, #dfffe1, #a2f5a0);
    padding: 40px 20px;
    border-radius: 20px;
    box-shadow: 0 0 20px rgba(0,0,0,0.2);
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.start-title {
    font-size: clamp(32px, 5vw, 64px);
    color: #023047;
    margin-bottom: 30px;
}

input[type="text"] {
    width: 100%;
    max-width: 300px;
    padding: 12px;
    font-size: 16px;
    border-radius: 6px;
    border: 1px solid #ccc;
    margin-bottom: 20px;
}

button {
    padding: 12px 24px;
    font-size: 18px;
    border: none;
    background-color: #0496c7;
    color: white;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
    max-width: 200px;
}

button:hover {
    background-color: #036f94;
}

@media (max-width: 480px) {
    #start-screen {
        padding: 30px 15px;
    }
    
    .start-title {
        font-size: 28px;
    }
}