* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Malgun Gothic", sans-serif;
    background: #f4f5f7;
    margin: 0;
    color: #1f2937;
}
body.center-page {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem 0;
}
h1 { font-size: 1.25rem; margin: 0; }
a.logout { color: #6b7280; font-size: 0.8125rem; text-decoration: none; }
a.logout:hover { text-decoration: underline; }

.card {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    margin: 1.5rem 2rem;
}
body.center-page .card { width: 320px; margin: 0; }

.badge {
    display: inline-block;
    background: #fef3c7;
    color: #92400e;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    margin-bottom: 1rem;
}
p { color: #374151; line-height: 1.6; }
label { display: block; font-size: 0.8125rem; color: #555; margin-bottom: 0.25rem; }
input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 0.9375rem;
}
button {
    width: 100%;
    padding: 0.65rem;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 0.9375rem;
    cursor: pointer;
}
button:hover { background: #1d4ed8; }
.error { color: #dc2626; font-size: 0.8125rem; margin-bottom: 0.75rem; }