.demo-section {
    text-align: center;
    margin-top: 20px;
}

.demo-btn {
    display: inline-block;
    padding: 10px 18px;
    background: #1f6feb;
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: 0.2s ease;
}

.demo-btn:hover {
    background: #388bfd;
    transform: translateY(-1px);
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
}

.layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 220px;
    background: #111827;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-right: 1px solid #1f2937;
}

.sidebar h2 {
    margin-bottom: 20px;
    font-size: 20px;
}

.sidebar a {
    color: #cbd5e1;
    text-decoration: none;
    padding: 8px;
    border-radius: 6px;
}

.sidebar a:hover {
    background: #1f2937;
}

/* Main content */
.main {
    flex: 1;
    padding: 30px;
}

.login-box {
    width: 320px;
    margin: 80px auto;
    padding: 24px;
    background: #1e293b;
    border-radius: 10px;
}