body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
}

.nav {
    display: flex;
    justify-content: space-between;
    padding: 20px 8%;
    background: #020617;
    border-bottom: 1px solid #334155;
}

.nav a {
    color: #38bdf8;
    text-decoration: none;
    margin-left: 18px;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

.card {
    background: #1e293b;
    padding: 24px;
    border-radius: 16px;
    margin-bottom: 20px;
    border: 1px solid #334155;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

input, textarea, select {
    width: 100%;
    padding: 12px;
    margin: 8px 0 18px;
    border-radius: 10px;
    border: 1px solid #475569;
    background: #0f172a;
    color: white;
}

button {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: #38bdf8;
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    background: #0ea5e9;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    background: #334155;
    color: #93c5fd;
    font-size: 13px;
}

.small {
    opacity: 0.7;
    font-size: 14px;
}

.error {
    color: #f87171;
}