* {
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    margin: 0;
    background: #0f172a;
    color: #e2e8f0;
}

a {
    color: #38bdf8;
    text-decoration: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px;
}

.card {
    background: #1e293b;
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.4);
}

h1, h2, h3 {
    margin-top: 0;
}

button {
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    margin-right: 8px;
}

.btn-start {
    background: #16a34a;
    color: white;
}

.btn-stop {
    background: #dc2626;
    color: white;
}

.btn-restart {
    background: #f59e0b;
    color: black;
}

.btn-danger {
    background: #dc2626;
    color: white;
}

input {
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #334155;
    background: #0f172a;
    color: white;
    margin-right: 10px;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.badge {
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.badge-ok {
    background: #16a34a;
    color: white;
}

.badge-unknown {
    background: #64748b;
    color: white;
}