:root {
    --primary: #0f172a;
    --bg: #f8fafc;
    --border: #cbd5e1;
}

body {
    font-family: system-ui, sans-serif;
    background: var(--bg);
    padding: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

input,
select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    box-sizing: border-box;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th,
td {
    text-align: left;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.price-input {
    width: 80px;
}

button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    font-size: 1.1rem;
}

button:hover {
    opacity: 0.9;
}

.sync-btn {
    background: #2563eb;
    margin-top: 1rem;
}

#status {
    margin-top: 1rem;
    font-weight: bold;
    text-align: center;
}