:root {
    color-scheme: light;
    --bg: #f5f7f8;
    --panel: #ffffff;
    --text: #1c2428;
    --muted: #607079;
    --line: #d9e1e5;
    --accent: #1f7a5a;
    --accent-dark: #166146;
    --danger: #b3261e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
}

a {
    color: var(--accent-dark);
}

.app-shell {
    min-height: 100vh;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
}

.brand {
    font-weight: 700;
}

.page {
    width: min(1180px, calc(100% - 32px));
    margin: 24px auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
}

.panel h2,
.panel h3 {
    margin: 0 0 12px;
}

.muted {
    color: var(--muted);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 14px;
    border: 1px solid var(--accent);
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    cursor: pointer;
}

.button.secondary {
    background: #fff;
    color: var(--accent-dark);
}

.form {
    max-width: 420px;
}

.field {
    margin-bottom: 14px;
}

.field label {
    display: block;
    margin-bottom: 6px;
    font-weight: 700;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    min-height: 40px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 8px 10px;
    font: inherit;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
}

.alert {
    padding: 10px 12px;
    border-radius: 6px;
    background: #fff4f2;
    color: var(--danger);
    border: 1px solid #f0c5bf;
}