/* ==========================================================================
   FarmaMarket Web — estilos base del ERP
   Layout: sidebar fijo + topbar + barra de pestañas + área de paneles.
   ========================================================================== */

:root {
    --erp-sidebar-w: 248px;
    --erp-topbar-h: 56px;
    --erp-bg: #f4f6f9;
    --erp-sidebar-bg: #1f2a37;
    --erp-sidebar-fg: #cbd5e1;
    --erp-sidebar-active: #2563eb;
    --erp-border: #e2e8f0;
    --erp-primary: #2563eb;
}

* { box-sizing: border-box; }

body.erp {
    margin: 0;
    background: var(--erp-bg);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: #1f2933;
}

/* ---------- Sidebar ---------- */
.erp-sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--erp-sidebar-w);
    background: var(--erp-sidebar-bg);
    color: var(--erp-sidebar-fg);
    display: flex;
    flex-direction: column;
    transition: transform .2s ease;
    z-index: 1030;
}
.erp-brand {
    display: flex; align-items: center; gap: .6rem;
    height: var(--erp-topbar-h);
    padding: 0 1rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.erp-brand-mark {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 8px;
    background: var(--erp-primary); color: #fff; font-weight: 700;
}
.erp-brand-text { font-weight: 600; color: #fff; }

.erp-nav { flex: 1; overflow-y: auto; padding: .5rem 0; }
.erp-menu { list-style: none; margin: 0; padding: 0; }
.erp-menu-section {
    padding: .8rem 1rem .3rem;
    font-size: .7rem; text-transform: uppercase; letter-spacing: .05em;
    color: #64748b;
}
.erp-menu-item {
    display: flex; align-items: center; gap: .6rem;
    padding: .55rem 1rem;
    color: var(--erp-sidebar-fg); text-decoration: none;
    font-size: .92rem;
}
.erp-menu-item:hover { background: rgba(255,255,255,.06); color: #fff; }
.erp-menu-item.active {
    background: rgba(37,99,235,.18); color: #fff;
    box-shadow: inset 3px 0 0 var(--erp-sidebar-active);
}
.erp-menu-icon { width: 1.2em; text-align: center; opacity: .8; }
.erp-sidebar-foot {
    padding: .6rem 1rem; border-top: 1px solid rgba(255,255,255,.08);
    color: #64748b;
}

/* ---------- Columna principal ---------- */
.erp-main {
    margin-left: var(--erp-sidebar-w);
    min-height: 100vh;
    display: flex; flex-direction: column;
}

/* ---------- Topbar ---------- */
.erp-topbar {
    height: var(--erp-topbar-h);
    display: flex; align-items: center; gap: 1rem;
    padding: 0 1rem;
    background: #fff; border-bottom: 1px solid var(--erp-border);
    position: sticky; top: 0; z-index: 1020;
}
.erp-burger {
    border: 0; background: transparent; font-size: 1.25rem;
    cursor: pointer; display: none;
}
.erp-topbar-title { font-weight: 600; }
.erp-topbar-actions { margin-left: auto; display: flex; align-items: center; gap: .75rem; }
.erp-user { color: #64748b; font-size: .9rem; }

/* ---------- Área de contenido (vista única) ---------- */
.erp-content { flex: 1; padding: 1.25rem; }
.erp-page { max-width: 1100px; }
.erp-card { border: 1px solid var(--erp-border); }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
    .erp-sidebar { transform: translateX(-100%); }
    .erp-sidebar.open { transform: translateX(0); }
    .erp-main { margin-left: 0; }
    .erp-burger { display: inline-block; }
}

/* ---------- Pantalla de login ---------- */
body.auth-body {
    margin: 0; min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #1f2a37, #2563eb);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.auth-wrap { width: 100%; max-width: 380px; padding: 1rem; }
.auth-card { border: 0; border-radius: 12px; }
.auth-brand {
    display: inline-flex; align-items: center; justify-content: center;
    width: 52px; height: 52px; border-radius: 12px;
    background: var(--erp-primary); color: #fff; font-weight: 700; font-size: 1.2rem;
}