:root {
    --brand: #2D353F;
    --bg: #f5f6f8;
    --card: #ffffff;
    --text: #1f2730;
    --muted: #6b7682;
    --border: #e3e7eb;
    --ok: #1f9d57;
    --err: #d23f3f;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.topbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 14px 24px;
}

.logo { height: 26px; display: block; }

.container { max-width: 880px; margin: 40px auto; padding: 0 20px; }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 28px;
}

h1 { margin: 0 0 8px; font-size: 1.5rem; }

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

.btn {
    display: inline-block;
    background: var(--brand);
    color: #fff;
    border: 0;
    border-radius: 8px;
    padding: 12px 18px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
}

.btn:hover { opacity: .92; }

.ok { color: var(--ok); }
.err { color: var(--err); }

/* Topbar / navegación */
.topbar { display: flex; align-items: center; justify-content: space-between; }
.topnav { display: flex; align-items: center; gap: 18px; }
.topnav a { color: var(--text); text-decoration: none; font-size: .95rem; }
.topnav a:hover { color: var(--brand); }
.inline { display: inline; margin: 0; }
.link { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: .95rem; padding: 0; }
.link:hover { color: var(--brand); }

/* Formularios */
.card-narrow { max-width: 420px; margin: 0 auto; }
.form { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: .9rem; color: var(--muted); }
.form input { padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem; color: var(--text); }
.form input:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
.form-actions { display: flex; align-items: center; gap: 16px; margin-top: 4px; }

/* Cabecera de tarjeta con acción */
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.card-head h1 { margin: 0; }

/* Tablas */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.table .actions { display: flex; gap: 14px; justify-content: flex-end; }
.table .actions a { color: var(--text); text-decoration: none; }
.table .actions a:hover { color: var(--brand); }

/* Pagos: formulario y detalle */
select, textarea { padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem; color: var(--text); font-family: inherit; width: 100%; background: #fff; }
.items { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.items-head { display: grid; grid-template-columns: 1fr 140px 64px; gap: 10px; font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.item-row { display: grid; grid-template-columns: 1fr 140px 64px; gap: 10px; align-items: center; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.card h3 { font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); margin: 20px 0 8px; }
.num { text-align: right; white-space: nowrap; }
.total-row td { border-top: 2px solid var(--border); border-bottom: 0; }
.link-box { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font-family: monospace; font-size: .9rem; word-break: break-all; }
.detail-actions { margin-top: 22px; }
.status { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .82rem; white-space: nowrap; }
.status-draft { background: #eef0f2; color: #58626b; }
.status-pending { background: #fff3d6; color: #8a6d1f; }
.status-paid { background: #dff3e6; color: #1f7d45; }
.status-cancelled { background: #f3dede; color: #9d3838; }

/* Página pública de pago */
.pay { text-align: center; }
.pay .table { text-align: left; margin: 18px 0; }
.pay-code { font-family: monospace; font-size: .85rem; margin: 0 0 4px; }
.consent { font-size: .8rem; text-align: left; background: var(--bg); border-radius: 8px; padding: 12px 14px; margin: 18px 0; }
.btn-lg { width: 100%; padding: 14px; font-size: 1.05rem; }
.message-card { text-align: center; }