/* =====================================================================
   Sistema de Inventario - estilos generales
   ===================================================================== */
:root {
    --color-primario: #1f4b43;
    --color-primario-claro: #2f6b5f;
    --color-acento: #c98a3d;
    --color-fondo: #f5f4f0;
    --color-superficie: #ffffff;
    --color-texto: #26302c;
    --color-texto-suave: #6b7570;
    --color-borde: #e2e0d8;
    --color-exito: #2f6b3f;
    --color-exito-fondo: #e6f2e8;
    --color-error: #a13d3d;
    --color-error-fondo: #fbe9e9;
    --color-alerta: #b5791f;
    --color-alerta-fondo: #fbf0dd;
    --radio: 10px;
    --sombra: 0 1px 2px rgba(20, 30, 25, 0.06), 0 4px 14px rgba(20, 30, 25, 0.05);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    background: var(--color-fondo);
    color: var(--color-texto);
    font-size: 15px;
}

a { color: var(--color-primario); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ---------- Sidebar ---------- */
.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--color-primario);
    color: #eef4f1;
    display: flex;
    flex-direction: column;
    padding: 22px 16px;
}
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
    padding: 0 6px;
}
.brand-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-acento);
    flex-shrink: 0;
}
.sidebar-brand strong { display: block; font-size: 15px; }
.sidebar-brand small { color: #b9ccc4; font-size: 12px; }

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav a {
    color: #dce9e4;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
}
.sidebar-nav a:hover { background: rgba(255,255,255,0.08); text-decoration: none; }
.sidebar-nav a.activo { background: rgba(255,255,255,0.16); color: #fff; font-weight: 600; }
.sidebar-export {
    margin-top: 14px;
    border: 1px solid rgba(255,255,255,0.3) !important;
    text-align: center;
}

/* ---------- Contenido ---------- */
.content { flex: 1; padding: 28px 34px; max-width: 1180px; }
.content-header { margin-bottom: 18px; }
.content-header h1 { margin: 0; font-size: 22px; font-weight: 700; }
.content-sub { color: var(--color-texto-suave); margin-top: 4px; }

.alerta {
    padding: 12px 16px;
    border-radius: var(--radio);
    margin-bottom: 18px;
    font-size: 14px;
}
.alerta-exito { background: var(--color-exito-fondo); color: var(--color-exito); border: 1px solid #c9e4cd; }
.alerta-error { background: var(--color-error-fondo); color: var(--color-error); border: 1px solid #f0c8c8; }
.alerta-info { background: #e7eef1; color: #345; border: 1px solid #cfe0e6; }

/* ---------- Tarjetas / KPIs ---------- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 16px;
    margin-bottom: 26px;
}
.kpi-card {
    background: var(--color-superficie);
    border-radius: var(--radio);
    padding: 18px 20px;
    box-shadow: var(--sombra);
    border-left: 4px solid var(--color-primario);
}
.kpi-card.alerta-roja { border-left-color: var(--color-error); }
.kpi-card.alerta-ambar { border-left-color: var(--color-acento); }
.kpi-card .kpi-valor { font-size: 28px; font-weight: 700; line-height: 1.1; }
.kpi-card .kpi-etiqueta { color: var(--color-texto-suave); font-size: 13px; margin-top: 4px; }

.panel {
    background: var(--color-superficie);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    padding: 22px 24px;
    margin-bottom: 22px;
}
.panel h2 { margin-top: 0; font-size: 17px; }
.panel h3 { font-size: 15px; margin-bottom: 10px; }

/* ---------- Botones ---------- */
.btn {
    display: inline-block;
    padding: 9px 16px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: var(--color-primario);
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    font-weight: 600;
}
.btn:hover { background: var(--color-primario-claro); text-decoration: none; }
.btn-secundario { background: #fff; color: var(--color-primario); border-color: var(--color-borde); }
.btn-secundario:hover { background: #f2f1ec; }
.btn-peligro { background: var(--color-error); }
.btn-peligro:hover { background: #8a3232; }
.btn-pequeno { padding: 5px 10px; font-size: 12.5px; }
.btn-acento { background: var(--color-acento); }
.btn-acento:hover { background: #b47a30; }

.barra-acciones { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }

/* ---------- Formularios ---------- */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: #3c453f; }
input[type=text], input[type=number], input[type=search], select, textarea {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--color-borde);
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    color: var(--color-texto);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primario-claro);
    box-shadow: 0 0 0 3px rgba(47,107,95,0.15);
}
.campo { margin-bottom: 16px; }
.fila-campos { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.campo-ayuda { font-size: 12px; color: var(--color-texto-suave); margin-top: 4px; }
.requerido { color: var(--color-error); }

fieldset { border: 1px solid var(--color-borde); border-radius: var(--radio); padding: 16px 18px; margin: 0 0 20px; }
legend { font-weight: 700; padding: 0 8px; font-size: 14px; }

.selector-tipo { display: flex; gap: 20px; margin-bottom: 18px; }
.selector-tipo label { display: flex; align-items: center; gap: 8px; font-weight: 600; cursor: pointer; }
.selector-tipo input { width: auto; }

/* ---------- Tablas ---------- */
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
    text-align: left;
    background: #f0efe9;
    color: #4a534d;
    padding: 10px 12px;
    font-weight: 700;
    border-bottom: 1px solid var(--color-borde);
    white-space: nowrap;
}
tbody td { padding: 9px 12px; border-bottom: 1px solid var(--color-borde); vertical-align: middle; }
tbody tr:hover { background: #faf9f5; }
.fila-stock-bajo { background: var(--color-error-fondo) !important; }
.fila-stock-alto { background: var(--color-alerta-fondo) !important; }
.tabla-wrap { overflow-x: auto; }
.badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 700;
}
.badge-simple { background: #e4ecea; color: var(--color-primario); }
.badge-variable { background: #efe2cf; color: #8a5a20; }
.badge-bajo { background: #f5d3d3; color: var(--color-error); }
.badge-alto { background: #f6e2bd; color: var(--color-alerta); }
.badge-ok { background: #d9ecdc; color: var(--color-exito); }

.tabla-variantes input { padding: 6px 8px; font-size: 13px; }
.tabla-variantes td, .tabla-variantes th { padding: 6px 8px; }
.acciones-fila { display: flex; gap: 6px; }

.tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 1px solid var(--color-borde); }
.tabs a {
    padding: 9px 16px;
    border-radius: 8px 8px 0 0;
    color: var(--color-texto-suave);
    font-weight: 600;
    font-size: 13.5px;
}
.tabs a.activo { background: var(--color-superficie); color: var(--color-primario); box-shadow: var(--sombra); }

.texto-suave { color: var(--color-texto-suave); }
.texto-derecha { text-align: right; }
.texto-centro { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

@media (max-width: 860px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; }
    .content { padding: 20px; }
}

/* ---------- Login ---------- */
.pagina-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--color-primario);
}
.login-caja {
    background: #fff;
    border-radius: var(--radio);
    padding: 34px 32px;
    width: 100%;
    max-width: 360px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.25);
}
.login-marca { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; color: var(--color-texto-suave); font-weight: 600; font-size: 13px; }
.login-caja h1 { margin: 0 0 18px; font-size: 20px; }

/* ---------- Detalles opcionales (campos de baja prioridad) ---------- */
details.detalles-opcionales {
    margin: 14px 0 6px;
    border: 1px dashed var(--color-borde);
    border-radius: var(--radio);
    padding: 10px 14px;
}
details.detalles-opcionales summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 13.5px;
    color: var(--color-texto-suave);
}
details.detalles-opcionales[open] summary { color: var(--color-texto); margin-bottom: 6px; }

/* ---------- Selector de atributos (multi-select) ---------- */
select.selector-atributo {
    min-height: 110px;
}

/* Checkbox en tablas */
table input[type="checkbox"] { width: auto; }