body {
    margin: 0;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #172033;
    background: linear-gradient(135deg, #e8f0ff, #f8fbff 50%, #eefaf4);
}

.card,
.panel {
    max-width: 720px;
    margin: 64px auto;
    padding: 32px;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(120, 140, 180, 0.18);
    border-radius: 24px;
    box-shadow: 0 24px 80px rgba(31, 57, 108, 0.12);
}

.panel {
    max-width: 1120px;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    color: #2563eb;
    background: #dbeafe;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
}

h1 {
    margin: 18px 0 8px;
    font-size: 32px;
}

.muted {
    color: #64748b;
}

.amount {
    margin: 24px 0;
    font-size: 48px;
    font-weight: 800;
    color: #16a34a;
}

dl {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 12px;
    margin: 24px 0;
}

dt {
    color: #64748b;
}

dd {
    margin: 0;
    word-break: break-all;
}

.button {
    width: 100%;
    display: inline-block;
    box-sizing: border-box;
    padding: 14px 20px;
    color: #fff;
    background: #2563eb;
    border: 0;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

.secondary {
    background: #0f172a;
}

.nav {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.nav a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 700;
}

.nav span {
    margin-left: auto;
    color: #64748b;
}

.form,
.grid-form {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

.grid-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

label {
    display: grid;
    gap: 8px;
    color: #475569;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 12px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    font: inherit;
}

textarea {
    resize: vertical;
}

.wide {
    grid-column: 1 / -1;
}

.error {
    padding: 12px 14px;
    color: #b91c1c;
    background: #fee2e2;
    border-radius: 12px;
}

code {
    font-size: 12px;
    word-break: break-all;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 24px;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
}

th,
td {
    padding: 14px 16px;
    border-bottom: 1px solid #e2e8f0;
    text-align: left;
    font-size: 14px;
}

th {
    color: #475569;
    background: #f8fafc;
}

.status {
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: 700;
}

.status.paid {
    color: #15803d;
    background: #dcfce7;
}

.status.pending {
    color: #b45309;
    background: #fef3c7;
}