body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f4f7f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}
.container {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    max-width: 500px;
    width: 100%;
}
header h1 { margin: 0; color: #2c3e50; }
.badge { font-size: 0.5em; background: #e74c3c; color: white; padding: 2px 8px; border-radius: 4px; vertical-align: middle; }
.features { display: flex; gap: 1rem; margin: 1.5rem 0; border-bottom: 1px solid #eee; padding-bottom: 1rem; }
.feature h3 { font-size: 0.9rem; margin: 0 0 0.5rem; color: #3498db; }
.feature p { font-size: 0.8rem; margin: 0; line-height: 1.4; }
.login-box { margin-top: 1.5rem; }
input { width: 100%; padding: 12px; margin: 8px 0; border: 1px solid #ddd; border-radius: 6px; box-sizing: border-box; }
button { width: 100%; padding: 12px; background: #2c3e50; color: white; border: none; border-radius: 6px; cursor: pointer; font-weight: bold; }
button:hover { background: #34495e; }
.error { color: #e74c3c; font-size: 0.85rem; margin-top: 10px; font-weight: bold; }
.notice { font-size: 0.75rem; color: #7f8c8d; margin-top: 1.5rem; font-style: italic; }
footer { margin-top: 2rem; text-align: center; font-size: 0.7rem; color: #bdc3c7; }