/* =============================================================
   1. Reset + variables — paleta NexoWeb (nexoweb.net)
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; }
[hidden] { display: none !important; }

:root {
  --bg: #050c18;
  --panel: #0a1524;
  --panel-2: #0e1c30;
  --cream: #f5f7fa;
  --muted: #8b98ac;
  --accent: #d4af37;
  --accent-2: #f0d78c;
  --accent-3: #9a7418;
  --accent-ink: #2b1d02;
  --accent-dark: #b8860b;
  --danger: #ef6b5c;
  --warn: #e8b84b;
  --border: #182338;
  --sans: 'Inter', system-ui, sans-serif;
  --display: 'Space Grotesk', system-ui, sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 14px;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--cream);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--display); line-height: 1.15; letter-spacing: -0.01em; font-weight: 600; }
p { text-wrap: pretty; }
input, select { font: inherit; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--cream); color: var(--bg);
  z-index: 9999; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }

.wrap { max-width: 1100px; margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2rem); }

/* =============================================================
   2. Botones
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .8rem 1.4rem; border-radius: 999px; font-weight: 700;
  transition: transform .2s var(--ease-out), background .2s var(--ease-out);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent-2) 0%, var(--accent) 55%, var(--accent-3) 100%);
  color: var(--accent-ink);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.35), 0 2px 8px rgba(0,0,0,.35);
}
.btn-primary:hover { background: linear-gradient(135deg, var(--accent-2) 0%, var(--accent-dark) 65%, var(--accent-3) 100%); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--cream); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-danger { background: transparent; border: 1px solid var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: var(--bg); }
.btn-block { width: 100%; }
.btn-icon { padding: .5rem .7rem; border-radius: 8px; }
.btn-sm { padding: .45rem .9rem; font-size: .85rem; }

/* =============================================================
   3. Topbar / footer
   ============================================================= */
.topbar { border-bottom: 1px solid var(--border); position: sticky; top: 0; background: rgba(5,12,24,.9); backdrop-filter: blur(6px); z-index: 20; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; padding-block: 1rem; }
.topbar-acciones { display: flex; align-items: center; gap: .7rem; }
.rol-pill { font-family: var(--display); font-size: .78rem; font-weight: 600; padding: .3rem .7rem; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); }
.brand { font-family: var(--display); font-weight: 700; font-size: 1.2rem; display: inline-flex; align-items: baseline; gap: .45rem; }
.brand-nexo { color: var(--accent); }
.footer { border-top: 1px solid var(--border); padding-block: 2rem; color: var(--muted); font-size: .9rem; }
.footer a { color: var(--accent); }

/* =============================================================
   4. Hero + features (landing)
   ============================================================= */
.hero { padding-block: clamp(3rem, 8vw, 6rem); }
.hero-inner { max-width: 760px; }
.hero-kicker { display: inline-block; color: var(--accent); font-family: var(--display); font-size: .85rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 1rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); text-wrap: balance; margin-bottom: 1rem; }
.hero-sub { color: var(--muted); font-size: 1.15rem; margin-bottom: 2rem; max-width: 60ch; }
.hero-cta { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.hero-note { color: var(--muted); font-size: .9rem; }

.features { padding-block: 2rem 5rem; }
.features-grid { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.feature { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.feature-ico { font-size: 1.8rem; }
.feature h3 { margin: .6rem 0 .4rem; font-size: 1.1rem; }
.feature p { color: var(--muted); font-size: .95rem; }

/* =============================================================
   5. Modales
   ============================================================= */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(3,8,16,.75);
  display: flex;
  overflow-y: auto;
  padding: 1rem; z-index: 50;
}
/* margin:auto en vez de align-items/justify-content:center — así, cuando el
   modal es más alto que la pantalla, el overlay se puede desplazar en vez de
   dejar el título y el botón de cerrar fuera de la vista sin forma de llegar
   a ellos (el bug clásico de centrar con flexbox + overflow). */
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; width: 100%; max-width: 420px; position: relative; margin: auto; }
.modal-sm { max-width: 360px; }
.modal-lg { max-width: 640px; }
.modal-cerrar { position: absolute; top: 1rem; right: 1rem; font-size: 1.1rem; color: var(--muted); }
.modal-cerrar:hover { color: var(--cream); }
.modal h2 { margin-bottom: 1.2rem; font-size: 1.4rem; }

.tabs { display: flex; gap: .5rem; margin-bottom: 1.2rem; }
.tab-btn { flex: 1; padding: .6rem; border-radius: 8px; color: var(--muted); border: 1px solid var(--border); }
.tab-btn.is-active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 700; }
.tab-panel { display: flex; flex-direction: column; gap: 1rem; }
.tab-panel[hidden] { display: none; }

form label { display: flex; flex-direction: column; gap: .4rem; font-size: .9rem; color: var(--muted); margin-bottom: 1rem; }
form input, form select {
  padding: .7rem .9rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--cream); font-size: 1rem;
}
form input:focus, form select:focus { border-color: var(--accent); }
.fila-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-error { color: var(--danger); font-size: .88rem; margin-bottom: 1rem; }
.form-nota { color: var(--muted); font-size: .85rem; margin-top: -.5rem; margin-bottom: 1rem; }
.link-btn { background: none; border: none; padding: 0; color: var(--accent); text-decoration: underline; cursor: pointer; font-size: .85rem; }
.link-btn:hover { opacity: .85; }

/* =============================================================
   6. App shell / asistente
   ============================================================= */
.app-wrap { padding-block: 2.5rem 4rem; }
.asistente { display: flex; justify-content: center; padding-top: 2rem; }
.asistente-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; max-width: 480px; width: 100%; }
.asistente-card h2 { margin-bottom: .5rem; }
.asistente-card > p { color: var(--muted); margin-bottom: 1.5rem; }

.panel-header { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.panel-sub { color: var(--muted); font-size: .95rem; }
.panel-actions { display: flex; gap: .7rem; flex-wrap: wrap; }

.filtros { display: flex; gap: .8rem; flex-wrap: wrap; align-items: center; margin-bottom: 1rem; }
.filtros input[type="search"], .filtros select { padding: .6rem .9rem; border-radius: 8px; border: 1px solid var(--border); background: var(--panel-2); color: var(--cream); }
.check-bajo { display: flex; align-items: center; gap: .4rem; color: var(--muted); font-size: .9rem; }

/* =============================================================
   7. Tabla de inventario / tabla de clientes
   ============================================================= */
.tabla-wrap { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow-x: auto; overflow-y: hidden; }
.tabla-inventario, .tabla-clientes { width: 100%; border-collapse: collapse; font-size: .93rem; }
/* Dentro de un modal angosto (equipo, historial) la tabla necesita un ancho
   mínimo propio para que .tabla-wrap la desplace en vez de aplastarla. */
.modal .tabla-clientes { min-width: 560px; }
.tabla-inventario th, .tabla-clientes th {
  text-align: left; padding: .9rem 1rem; background: var(--panel-2);
  color: var(--muted); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .03em;
}
.tabla-inventario td, .tabla-clientes td { padding: .8rem 1rem; border-top: 1px solid var(--border); vertical-align: middle; }
.tabla-inventario tr.is-bajo td:first-child { border-left: 3px solid var(--warn); }
.cantidad-pill { font-weight: 700; }
.cantidad-pill.is-bajo { color: var(--warn); }
.acciones-fila { display: flex; gap: .4rem; }
.tabla-vacia { padding: 3rem 1rem; text-align: center; color: var(--muted); }

.estado-pill { display: inline-flex; align-items: center; gap: .4rem; font-size: .82rem; font-weight: 700; padding: .25rem .7rem; border-radius: 999px; }
.estado-pill.activo { background: rgba(212,175,55,.16); color: var(--accent); }
.estado-pill.inactivo { background: rgba(239,107,92,.14); color: var(--danger); }

@media (max-width: 720px) {
  .tabla-inventario, .tabla-clientes { min-width: 640px; }
}

/* =============================================================
   8. Panel de administrador
   ============================================================= */
.admin-gate { min-height: 70vh; display: flex; align-items: center; justify-content: center; padding-block: 3rem; }
.admin-gate-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 2.2rem; max-width: 400px; width: 100%; }
.admin-gate-card h1 { font-size: 1.5rem; margin-bottom: .5rem; }
.admin-gate-card p.lead { color: var(--muted); margin-bottom: 1.5rem; font-size: .95rem; }

/* =============================================================
   9. Mi equipo (colaboradores / invitados)
   ============================================================= */
.equipo-formularios { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.equipo-form-card { background: var(--panel-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.3rem; }
.equipo-form-card h3 { font-size: 1.05rem; margin-bottom: .4rem; }
.equipo-form-card form label { margin-bottom: .8rem; }

@media (max-width: 720px) {
  .equipo-formularios { grid-template-columns: 1fr; }
}

/* =============================================================
   10. Resumen financiero (valor de inventario, margen)
   ============================================================= */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .9rem; margin-bottom: 1.3rem; }
.stat-tile { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.2rem; display: flex; flex-direction: column; gap: .35rem; }
.stat-label { font-family: var(--display); font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.stat-valor { font-family: var(--display); font-size: 1.4rem; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; }

/* =============================================================
   11. Sucursales
   ============================================================= */
.sucursal-switcher { display: flex; align-items: flex-end; gap: 1rem; margin-bottom: 1.3rem; flex-wrap: wrap; }
.sucursal-label { display: flex; flex-direction: column; gap: .3rem; font-size: .85rem; color: var(--muted); }
.sucursal-label select { padding: .55rem .8rem; border-radius: 8px; border: 1px solid var(--border); background: var(--panel-2); color: var(--cream); min-width: 200px; }
.fila-sucursal { display: flex; gap: .5rem; align-items: center; margin-bottom: .6rem; }
.fila-sucursal input { flex: 1; padding: .55rem .8rem; border-radius: 8px; border: 1px solid var(--border); background: var(--panel-2); color: var(--cream); }

/* =============================================================
   12. Foto de producto + escáner de código de barras
   ============================================================= */
.foto-producto-campo { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem; }
.foto-preview { width: 72px; height: 72px; border-radius: 10px; object-fit: cover; border: 1px solid var(--border); background: var(--panel-2); }
.foto-preview-vacia { display: flex; align-items: center; justify-content: center; font-size: 1.6rem; }
.foto-boton { cursor: pointer; display: inline-flex; }
.campo-con-boton { display: flex; gap: .6rem; }
.campo-con-boton input { flex: 1; }
.campo-con-boton .btn { flex-shrink: 0; }

.miniatura { width: 36px; height: 36px; border-radius: 8px; object-fit: cover; border: 1px solid var(--border); background: var(--panel-2); }
.miniatura-vacia { display: flex; align-items: center; justify-content: center; font-size: 1rem; color: var(--muted); }

.scanner-video-wrap { border-radius: var(--radius); overflow: hidden; background: #000; aspect-ratio: 4/3; margin-bottom: .8rem; }
#scanner-video { width: 100%; height: 100%; object-fit: cover; }