* {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    box-sizing: border-box;
}

body {
    padding: 0 12px;
}

main {
    width: 400px;
    max-width: 100%;
    margin: 200px auto 0;
}

.logo {
    margin: 0 auto;
    width: 160px;
    height: 160px;
    display: block;
    margin-bottom: 28px;
}

h1 {
    font-size: 28px;
    font-weight: 600;
}

.subtitle {
    font-size: 16px;
    color: #666;
    margin-top: 4px;
}

.subtitle strong {
    color: black;
    font-weight: 600;
}

form {
    margin-top: 24px;
}

input {
    width: 100%;
    padding: 12px;
    font-size: 18px;
    border: solid 2px #eee;
    border-radius: 16px;
}

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

.error input {
    animation: shake 0.5s;
}

button {
    background: black;
    color: white;
    width: 100%;
    border: none;
    font-size: 16px;
    padding: 12px 0;
    border-radius: 999px;
    margin-top: 16px;
    font-weight: 600;
}

@keyframes shake {
    0% { transform: translateX(0); }
    10% { transform: translateX(-5px); }
    20% { transform: translateX(5px); }
    30% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    50% { transform: translateX(-5px); }
    60% { transform: translateX(5px); }
    70% { transform: translateX(-5px); }
    80% { transform: translateX(5px); }
    90% { transform: translateX(-5px); }
    100% { transform: translateX(0); }
}