/* Colores corporativos de Biotierras: verde #2D512F y blanco. El resto son matices del verde. */
:root {
    --verde: #2d512f;
    --verde-oscuro: #1f3a21;
    --verde-hover: #3b6a3e;
    --verde-claro: #e9f0e9;
    --verde-borde: #cbd8cb;
    --fondo: #f5f7f5;
    --texto: #1d2a1f;
    --suave: #5b6b5d;
    --error: #b3261e;
    --error-fondo: #fdecea;
    --ok-fondo: #e3f0e4;
    --radio: 8px;
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--fondo); color: var(--texto); }
a { color: var(--verde); }

/* Estructura */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 250px; flex-shrink: 0; background: var(--verde); color: #fff; padding: 1.25rem 1rem; display: flex; flex-direction: column; }
.sidebar .brand img { width: 180px; max-width: 100%; display: block; margin-bottom: 1.25rem; }
.sidebar nav { flex: 1; }
.sidebar nav a, .sidebar nav .off { display: block; padding: .4rem .6rem; border-radius: 6px; color: #fff; text-decoration: none; font-size: .95rem; }
.sidebar nav a:hover { background: rgba(255,255,255,.12); }
.sidebar nav a.on { background: #fff; color: var(--verde); font-weight: 600; }
.sidebar nav .off { opacity: .45; }
.sidebar h2 { margin: 1rem 0 .3rem; padding: 0 .6rem; font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; opacity: .7; font-weight: 600; }
.sidebar .salir { margin-top: 1rem; padding: 0 .6rem; }
.sidebar .salir button.link { color: #fff; opacity: .85; }
.content { flex: 1; min-width: 0; padding: 1.5rem; max-width: 1150px; }

.head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
h1 { margin: 0; font-size: 1.5rem; }
.sub { font-size: 1.05rem; margin: 1.5rem 0 .5rem; color: var(--suave); }

/* Botones y enlaces */
.btn, button { display: inline-block; padding: .55rem 1.1rem; border: 0; border-radius: var(--radio); background: var(--verde); color: #fff; font: inherit; text-decoration: none; cursor: pointer; }
.btn:hover, button:hover { background: var(--verde-hover); }
.btn-sec { display: inline-block; padding: .5rem 1rem; border: 1px solid var(--verde); border-radius: var(--radio); background: #fff; color: var(--verde); font: inherit; text-decoration: none; cursor: pointer; }
.btn-sec:hover { background: var(--verde-claro); }
button.link { background: none; padding: 0; color: var(--verde); text-decoration: underline; font-size: .95rem; }
button.link:hover { background: none; color: var(--verde-hover); }

/* Mensajes */
.flash { padding: .65rem .9rem; border-radius: var(--radio); margin: 0 0 1rem; }
.flash-ok { background: var(--ok-fondo); color: var(--verde-oscuro); border: 1px solid var(--verde-borde); }
.flash-error { background: var(--error-fondo); color: var(--error); border: 1px solid #f3c4c0; }

/* Formularios */
.form-card, .card { background: #fff; border: 1px solid var(--verde-borde); border-radius: var(--radio); padding: 1.25rem; }
.form-card { max-width: 560px; }
.campo { display: block; margin-bottom: 1rem; }
.campo > span { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .25rem; }
.campo small { display: block; margin-top: .2rem; color: var(--suave); font-size: .8rem; }
input[type=text], input[type=email], input[type=password], input[type=search], select, textarea {
    width: 100%; padding: .55rem .65rem; border: 1px solid #aebcae; border-radius: var(--radio); font: inherit; background: #fff; color: var(--texto);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--verde); outline-offset: 1px; border-color: var(--verde); }
.botones { display: flex; gap: .75rem; align-items: center; margin-top: 1.25rem; }
.preview { background: var(--verde-claro); border: 1px solid var(--verde-borde); border-radius: var(--radio); padding: .75rem 1rem; margin: 0 0 1rem; font-size: .92rem; }
.preview strong { display: block; margin-bottom: .25rem; }

/* Filtros y tablas */
.filtros { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }
.filtros input[type=search] { width: 260px; max-width: 100%; }
.chk { font-size: .9rem; display: flex; align-items: center; gap: .35rem; }
.tabla-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--verde-borde); border-radius: var(--radio); }
table { width: 100%; border-collapse: collapse; font-size: .93rem; }
th { background: var(--verde-claro); text-align: left; padding: .6rem .75rem; white-space: nowrap; color: var(--verde-oscuro); }
td { padding: .55rem .75rem; border-top: 1px solid #e3eae3; vertical-align: top; }
th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.inactivo td { opacity: .55; }
.badge { font-size: .75rem; padding: .1rem .5rem; border-radius: 999px; }
.badge-on { background: var(--ok-fondo); color: var(--verde-oscuro); }
.badge-off { background: #ececec; color: #666; }
.acciones { white-space: nowrap; }
.acciones form.inline { display: inline; margin-left: .6rem; }
.vacio { color: var(--suave); padding: 1rem 0; }

/* Panel */
.resumen { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: .75rem; }
.tarjeta { display: block; background: #fff; border: 1px solid var(--verde-borde); border-radius: var(--radio); padding: .9rem 1rem; text-decoration: none; color: var(--texto); }
.tarjeta:hover { border-color: var(--verde); }
.tarjeta strong { display: block; font-size: 1.6rem; color: var(--verde); line-height: 1.1; }
.tarjeta span { font-size: .85rem; color: var(--suave); }

/* Login */
body.login { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.card-login { width: 100%; max-width: 400px; margin: 1rem; }
.card-login h1 { font-size: 1.15rem; margin-bottom: 1rem; text-align: center; color: var(--suave); font-weight: 600; }
.logo-login { display: block; width: 220px; max-width: 80%; margin: 0 auto 1rem; }

@media (max-width: 800px) {
    .layout { flex-direction: column; }
    .sidebar { width: 100%; padding: .75rem 1rem; }
    .sidebar .brand img { width: 130px; margin-bottom: .5rem; }
    .sidebar nav a, .sidebar nav .off { display: inline-block; }
    .content { padding: 1rem; }
}