@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root{
  --navy-950: #0F1A2E;
  --navy-900: #14213A;
  --navy-800: #1D2E4F;
  --navy-700: #2A4269;
  --amber-500: #E2892C;
  --amber-400: #F0A94F;
  --amber-100: #FCE6C9;
  --bg: #F3F5F8;
  --surface: #FFFFFF;
  --ink: #16202E;
  --muted: #667085;
  --border: #E1E5EC;
  --danger: #C6472F;
  --danger-bg-hover: #FBEAE6;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 7px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  color-scheme: light;
}

:root[data-theme="dark"]{
  --navy-950: #070C16;
  --navy-900: #101B2E;
  --navy-800: #1A2A46;
  --navy-700: #2C4468;
  --amber-100: #3A2C17;
  --bg: #0C1220;
  --surface: #151F32;
  --ink: #E7EBF2;
  --muted: #8D99AD;
  --border: #283A56;
  --danger: #E2604A;
  --danger-bg-hover: #3A2018;
  color-scheme: dark;
}

*{ box-sizing: border-box; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* ---------- App shell (sidebar + contenido) ---------- */
.app-shell{
  display: flex;
  min-height: 100vh;
}
.app-shell__main{
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.sidebar{
  width: 240px;
  flex: none;
  background: linear-gradient(180deg, var(--navy-950), var(--navy-900));
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 60;
}
.sidebar__brand{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 6px;
  color: var(--amber-400);
}
.sidebar__brand-text{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  line-height: 1.15;
}
.sidebar__usuario{
  margin: 0;
  padding: 0 6px 8px;
  font-size: 0.78rem;
  color: #93A2BC;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.sidebar__nav{
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.sidebar__link{
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: #C7D1E0;
  font-family: var(--font-body);
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
}
.sidebar__link:hover{ background: rgba(255,255,255,0.08); color: #fff; }
.sidebar__link.activo{ background: var(--amber-500); color: #241505; font-weight: 600; }
.sidebar__footer{
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.sidebar__link--danger:hover{ background: rgba(226,96,74,0.28); color: #fff; }

.sidebar-backdrop{
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(6,10,18,0.55);
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

/* ---------- Topbar ---------- */
.topbar{
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px clamp(16px, 4vw, 32px);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
}
.topbar__title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0;
  flex: 1;
  min-width: 0;
  letter-spacing: -0.01em;
}
.topbar__right{
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}
.sidebar-toggle{
  display: none;
  flex: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
  cursor: pointer;
}

.theme-toggle{
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--amber-500);
  cursor: pointer;
}
.theme-toggle:hover{ background: var(--amber-100); }
.theme-toggle:focus-visible{ outline: 2px solid var(--amber-400); outline-offset: 2px; }
.theme-toggle__icon{ display: none; }
:root[data-theme="light"] .theme-toggle__icon--sol{ display: block; }
:root[data-theme="dark"] .theme-toggle__icon--luna{ display: block; }

/* ---------- Contenido principal ---------- */
.content{
  flex: 1;
  min-width: 0;
}
.vista{
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(16px, 4vw, 32px) clamp(16px, 4vw, 48px) 80px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.vista[hidden]{ display: none; }
.sin-acceso{
  max-width: 640px;
  margin: 60px auto;
  padding: 0 20px;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

.card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card__head{
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 22px 4px;
}
.card__head h2{
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 2px;
  letter-spacing: -0.01em;
}
.card__hint{
  margin: 0;
  font-size: 0.84rem;
  color: var(--muted);
}
.card__step{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--amber-500);
  background: var(--amber-100);
  border-radius: 6px;
  padding: 3px 7px;
  flex: none;
  margin-top: 2px;
}
.card__body{
  padding: 16px 22px 22px;
}
.card--preview .card__head{
  align-items: center;
  flex-wrap: wrap;
}
.card--preview .card__head > div{ flex: 1; min-width: 200px; }

/* ---------- Fechas ---------- */
.fechas-grid{
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 16px;
  align-items: end;
}
.field{ display: flex; flex-direction: column; gap: 6px; }
.field__label{ font-size: 0.82rem; color: var(--muted); font-weight: 500; }
input[type="date"]{
  font-family: var(--font-mono);
  font-size: 0.92rem;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
}
input[type="date"]:focus, .input:focus, .opcion input:focus-visible + span{
  outline: 2px solid var(--amber-400);
  outline-offset: 1px;
}
.fechas-grid__summary{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--navy-800);
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  white-space: nowrap;
}

/* ---------- Tabla vista previa ---------- */
.tabla-scroll{ overflow-x: auto; }
.tabla-preview{
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.tabla-preview th{
  text-align: left;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 600;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.tabla-preview td{
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.col-num{ text-align: right; }

.input{
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
}
.input--num{ font-family: var(--font-mono); text-align: right; }

.gauge{
  height: 6px;
  border-radius: 5px;
  background: var(--border);
  overflow: hidden;
}
.gauge__fill{
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--amber-400), var(--amber-500));
  transition: width 0.4s ease;
}

/* ---------- Tarjetas de producto ---------- */
.productos-lista{
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.producto-card{
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.producto-card__top{
  display: flex;
  align-items: center;
  gap: 8px;
}
.producto-card__top .input--producto{
  background: var(--surface);
  font-weight: 600;
  font-family: var(--font-display);
  font-size: 0.95rem;
}
.producto-card__grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.field--sm .field__label{ font-size: 0.72rem; }
.field--sm .input{ background: var(--surface); }
.producto-card__hint{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--navy-700);
}
.producto-card__hint--error{ color: var(--danger); }

@media (max-width: 640px){
  .producto-card__grid{ grid-template-columns: 1fr 1fr; }
}

/* ---------- Numeración ---------- */
.numeracion-grid{
  display: grid;
  grid-template-columns: 140px 160px 1fr;
  gap: 16px;
  align-items: end;
}
.numeracion-grid__ejemplo{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--navy-800);
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  white-space: nowrap;
}
@media (max-width: 640px){
  .numeracion-grid{ grid-template-columns: 1fr 1fr; }
  .numeracion-grid__ejemplo{ grid-column: 1 / -1; white-space: normal; }
}

.btn-icon{
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
}
.btn-icon:hover{ background: var(--danger-bg-hover); color: var(--danger); }

/* ---------- Botones ---------- */
.btn{
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn--ghost{
  background: transparent;
  border-color: var(--border);
  color: var(--navy-800);
  margin-top: 14px;
}
.btn--ghost:hover{ background: var(--bg); }
.btn--primary{
  background: var(--navy-900);
  color: #fff;
}
.btn--primary:hover{ background: var(--navy-800); }
.btn--sm{ padding: 8px 14px; font-size: 0.82rem; }

.acciones-generar{
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: flex-end;
}
.acciones-generar__error{
  color: var(--danger);
  font-size: 0.85rem;
  margin: 0;
}

/* ---------- Variación ---------- */
.variacion-opciones{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.opcion{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.88rem;
}
.opcion:has(input:checked), .opcion.opcion--activa{
  border-color: var(--amber-500);
  background: var(--amber-100);
  color: var(--navy-900);
}

/* ---------- Preview ---------- */
.tabla-preview tfoot td{
  font-family: var(--font-mono);
  font-weight: 600;
  background: var(--bg);
}
.tabla-preview .fila-total-producto td{
  border-top: 2px solid var(--navy-900);
}
.tabla-preview .fila-total-general td{
  background: var(--navy-900);
  color: #fff;
  font-family: var(--font-mono);
}
.tabla-preview td.col-num, .tabla-preview th.col-num{ font-family: var(--font-mono); }

/* ---------- Checkboxes tipo "opción" (admin/activo/módulos) ---------- */
.opcion--check{
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.opcion--check:has(input:checked){
  border-color: var(--amber-500);
  background: var(--amber-100);
  color: var(--navy-900);
}

/* ---------- Login ---------- */
body.login-page{
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--navy-950), var(--navy-800));
}
.login-card{
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}
.login-card__brand{
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  color: var(--amber-500);
}
.login-card__title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0;
  color: var(--ink);
}
.login-card__subtitle{
  margin: 2px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.login-card__form{
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-card__error{
  color: var(--danger);
  font-size: 0.85rem;
  margin: 0;
  min-height: 1.1em;
}
.login-card__submit{ width: 100%; margin-top: 4px; }

/* ---------- Modales ---------- */
.modal{
  position: fixed;
  inset: 0;
  background: rgba(6,10,18,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}
.modal[hidden]{ display: none; }
.modal__panel{
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.modal__head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 4px;
}
.modal__head h2{
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0;
}
.modal__body{
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 20px 22px;
}
.modal__acciones{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 4px;
}
.mensaje-exito{ color: #2E8B57 !important; }

/* ---------- Panel de usuarios ---------- */
.usuario-form{
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.usuario-form__grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.usuario-form__modulos{
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.usuario-form__modulos-lista{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tabla-usuarios td{ vertical-align: middle; }
.pill{
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}
.pill--activo{ background: #E4F3E8; color: #22703C; }
.pill--inactivo{ background: var(--danger-bg-hover); color: var(--danger); }

/* ---------- Responsivo: sidebar en pantallas angostas ---------- */
@media (max-width: 900px){
  .sidebar-toggle{ display: inline-flex; }
  .sidebar{
    position: fixed;
    left: -260px;
    top: 0;
    height: 100vh;
    box-shadow: 0 0 40px rgba(0,0,0,0.35);
    transition: left 0.25s ease;
  }
  .sidebar.sidebar--abierta{ left: 0; }
  .sidebar-backdrop{ display: block; }
  .sidebar-backdrop--visible{ opacity: 1; pointer-events: auto; }
}

@media (max-width: 640px){
  .fechas-grid{ grid-template-columns: 1fr; }
  .col-gauge{ width: 70px; }
  .usuario-form__grid{ grid-template-columns: 1fr; }
  .modal__acciones{ flex-direction: column-reverse; align-items: stretch; }
  .card--preview .card__head{ gap: 10px; }
  .topbar__title{ font-size: 1rem; }
}