/* ============================================================
   NIMBOO SHOWROOM · Layout
   App shell con sidebar editorial + topbar + main
   ============================================================ */

/* ============================================================
   APP SHELL
   ============================================================ */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
  background: var(--paper);
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  background: var(--paper);
  border-right: 1px solid var(--line);
  padding: var(--sp-7) var(--sp-6);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--sp-9);
  padding: 0 var(--sp-2);
}
.sidebar-brand img {
  width: 26px;
  height: 26px;
  opacity: 0.85;
}
.sidebar-brand .name {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 400;
  letter-spacing: var(--tracking-display);
  color: var(--ink-1000);
}
.sidebar-brand .product {
  font-style: italic;
  color: var(--ink-600);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
}

.nav-section {
  font-size: var(--fs-2xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--ink-400);
  font-weight: 500;
  padding: var(--sp-5) var(--sp-3) var(--sp-2);
}
.nav-section:first-child { padding-top: 0; }

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 10px var(--sp-3);
  font-size: var(--fs-sm);
  color: var(--ink-600);
  cursor: pointer;
  transition: color var(--t-fast) var(--ease-out),
              padding-left var(--t-base) var(--ease-out),
              border-color var(--t-fast);
  border-bottom: 1px solid transparent;
  margin-bottom: 1px;
  position: relative;
}
.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 0;
  background: var(--sage);
  transform: translateY(-50%);
  transition: height 0.3s var(--ease-out);
}
.nav-item:hover {
  color: var(--ink-1000);
  padding-left: var(--sp-4);
}
.nav-item:hover::before { height: 16px; }
.nav-item.active {
  color: var(--ink-1000);
  border-bottom-color: var(--ink-1000);
  font-weight: 500;
}
.nav-item.active::before { height: 24px; }
.nav-item .ico {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity var(--t-fast), transform 0.3s var(--ease-out);
}
.nav-item:hover .ico { transform: scale(1.1); }
.nav-item.active .ico { opacity: 1; }
.nav-item .count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--ink-400);
}

.sidebar-foot {
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line);
}

/* ============================================================
   TOPBAR (delgado, flotante)
   ============================================================ */
.topbar {
  height: var(--topbar-h);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--sp-9);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(250, 250, 247, 0.85);
}

.topbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--ink-500);
  font-weight: 500;
}
.topbar-breadcrumb .current { color: var(--ink-1000); }

.user-chip {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 6px 14px 6px 6px;
  border-radius: var(--r-full);
  background: var(--surface);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: all var(--t-base) var(--ease-out);
}
.user-chip:hover {
  border-color: var(--ink-1000);
  background: var(--paper-soft);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ink-1000);
  color: var(--paper);
  display: grid;
  place-items: center;
  font-size: var(--fs-xs);
  font-weight: 600;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.user-chip:hover .user-avatar { transform: scale(1.08) rotate(-3deg); }
.user-chip .name {
  font-size: var(--fs-sm);
  color: var(--ink-1000);
  font-weight: 500;
}

/* ============================================================
   MAIN
   ============================================================ */
.main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.page {
  padding: var(--sp-9) var(--sp-9);
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
}

/* ============================================================
   PAGE HERO (header de cada página, estilo editorial)
   ============================================================ */
.page-hero {
  margin-bottom: var(--sp-9);
}
.page-hero .eyebrow {
  margin-bottom: var(--sp-3);
}
.page-hero h1 {
  font-size: var(--fs-4xl);
  line-height: var(--lh-tight);
  margin-bottom: var(--sp-2);
}
.page-hero h1 em {
  font-style: italic;
  font-weight: 400;
}
.page-hero .lede {
  font-size: var(--fs-md);
  color: var(--ink-600);
  max-width: 540px;
  line-height: var(--lh-base);
}
.page-hero-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--sp-6);
  flex-wrap: wrap;
}
.page-hero-actions {
  display: flex;
  gap: var(--sp-3);
}

/* Variante: page-head más compacta para páginas de listado */
.page-head {
  margin-bottom: var(--sp-7);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--line-firm);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--sp-6);
  flex-wrap: wrap;
}
.page-head h1 { font-size: var(--fs-3xl); }
.page-head .lede {
  font-size: var(--fs-base);
  color: var(--ink-600);
  margin-top: var(--sp-2);
}

/* ============================================================
   GRIDS UTILIDAD
   ============================================================ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); }

/* ============================================================
   FILTERS BAR
   ============================================================ */
.filters {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
}
.search-field {
  position: relative;
  flex: 1;
  max-width: 360px;
}
.search-field svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  color: var(--ink-400);
}
.search-field .input {
  padding-left: 38px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 880px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    transform: translateX(-100%);
    transition: transform var(--t-slow) var(--ease);
    z-index: 200;
    box-shadow: var(--shadow-xl);
  }
  .sidebar.open { transform: translateX(0); }

  .topbar { padding: 0 var(--sp-5); }
  .page { padding: var(--sp-7) var(--sp-5); }
  .page-hero h1 { font-size: var(--fs-3xl); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}