/* ============================================================
   RMMS — Layout Styles
   Sidebar, Header, Main Content, Mobile Bottom Bar
   ============================================================ */

/* ── App Shell ── */
.app-shell { display: flex; min-height: 100vh; }

/* ── Sidebar (Desktop) ── */
.sidebar {
  width: var(--sidebar-width); height: 100vh; position: fixed; top: 0; left: 0;
  background: var(--elevation-1); border-right: 1px solid var(--elevation-2);
  display: flex; flex-direction: column; z-index: var(--z-sidebar);
  transition: transform var(--transition-base);
}
.sidebar-brand {
  padding: var(--space-6); border-bottom: 1px solid var(--elevation-2);
  display: flex; align-items: center; gap: var(--space-3);
}
.sidebar-brand-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: transparent; display: flex; align-items: center;
  justify-content: center; overflow: hidden; flex-shrink: 0;
}
.sidebar-brand-text { display: flex; flex-direction: column; }
.sidebar-brand-name {
  font-family: var(--font-headline); font-size: 16px; font-weight: 700;
  color: var(--on-surface); line-height: 1.2;
}
.sidebar-brand-sub { font-size: var(--label-sm-size); color: var(--on-surface-variant); line-height: 1.3; }

.sidebar-nav { flex: 1; overflow-y: auto; padding: var(--space-3); }
.sidebar-nav-section { margin-bottom: var(--space-2); }
.sidebar-nav-section-title {
  padding: var(--space-2) var(--space-3); font-family: var(--font-label);
  font-size: var(--label-sm-size); font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--outline);
}

.nav-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 10px var(--space-3); border-radius: var(--radius-sm);
  color: var(--on-surface-variant); font-size: var(--body-md-size); font-weight: 500;
  transition: all var(--transition-fast); cursor: pointer; margin-bottom: 2px;
}
.nav-item:hover { background: var(--surface-container-high); color: var(--on-surface); }
.nav-item.active {
  background: rgba(13, 148, 136, 0.1); color: var(--primary);
  border-left: 3px solid var(--primary-container); padding-left: calc(var(--space-3) - 3px);
}
.nav-item .material-icons-round { font-size: 20px; flex-shrink: 0; }
.nav-item .nav-label { flex: 1; }

.sidebar-footer {
  padding: var(--space-4); border-top: 1px solid var(--elevation-2);
}
.sidebar-user {
  display: flex; align-items: center; gap: var(--space-3); padding: var(--space-2);
}
.sidebar-avatar {
  width: 36px; height: 36px; border-radius: var(--radius-full);
  background: var(--primary-container); display: flex; align-items: center;
  justify-content: center; color: #000; font-weight: 700; font-size: 14px;
  font-family: var(--font-headline); flex-shrink: 0;
}
.sidebar-user-info { flex: 1; min-width: 0; }
.sidebar-user-name {
  font-size: var(--body-sm-size); font-weight: 600; color: var(--on-surface);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sidebar-user-role { font-size: var(--label-sm-size); color: var(--on-surface-variant); }
.sidebar-logout {
  display: flex; align-items: center; gap: var(--space-2);
  padding: 8px var(--space-3); margin-top: var(--space-2);
  border-radius: var(--radius-sm); color: var(--on-surface-variant);
  font-size: var(--body-sm-size); width: 100%; transition: all var(--transition-fast);
}
.sidebar-logout:hover { background: rgba(255, 180, 171, 0.1); color: var(--error); }
.sidebar-logout .material-icons-round { font-size: 18px; }

/* ── Main Content ── */
.main-wrapper {
  flex: 1; margin-left: var(--sidebar-width); min-height: 100vh;
  display: flex; flex-direction: column;
}

/* ── Header ── */
.header {
  height: var(--header-height); display: flex; align-items: center;
  justify-content: space-between; padding: 0 var(--margin-desktop);
  background: var(--surface-container-low); border-bottom: 1px solid var(--elevation-2);
  position: sticky; top: 0; z-index: var(--z-sticky);
}
.header-left { display: flex; align-items: center; gap: var(--space-4); }
.header-menu-btn {
  display: none; width: 40px; height: 40px; align-items: center;
  justify-content: center; border-radius: var(--radius-sm); color: var(--on-surface-variant);
}
.header-menu-btn:hover { background: var(--surface-container-high); }
.header-breadcrumb { display: flex; align-items: center; gap: var(--space-2); }
.header-breadcrumb .separator { color: var(--outline-variant); font-size: 18px; }
.header-breadcrumb .current {
  font-family: var(--font-headline); font-size: var(--headline-sm-size);
  font-weight: var(--headline-sm-weight);
}
.header-right { display: flex; align-items: center; gap: var(--space-4); }
.header-user {
  display: flex; align-items: center; gap: var(--space-3);
}
.header-user-name { font-size: var(--body-sm-size); font-weight: 600; }
.header-user-role {
  padding: 2px 8px; border-radius: var(--radius-sm); font-size: var(--label-sm-size);
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
  background: rgba(13, 148, 136, 0.15); color: var(--primary);
}

/* ── Page Content ── */
.page-content {
  flex: 1; padding: var(--margin-desktop);
  max-width: var(--container-max); width: 100%;
}
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-6); flex-wrap: wrap; gap: var(--space-4);
}
.page-title { font-family: var(--font-headline); font-size: var(--headline-lg-size); font-weight: var(--headline-lg-weight); letter-spacing: var(--headline-lg-spacing); }
.page-actions { display: flex; align-items: center; gap: var(--space-3); }

/* KPI Grid */
.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4); margin-bottom: var(--space-6);
}

/* Content Grid (2-col) */
.content-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6);
}

/* Section */
.section { margin-bottom: var(--space-8); }
.section-title {
  font-family: var(--font-headline); font-size: var(--headline-sm-size);
  font-weight: var(--headline-sm-weight); margin-bottom: var(--space-4);
  display: flex; align-items: center; gap: var(--space-2);
}
.section-title .material-icons-round { color: var(--primary-container); font-size: 22px; }

/* ── Bottom Bar (Mobile) ── */
.bottombar {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  height: var(--bottombar-height); background: var(--elevation-1);
  border-top: 1px solid var(--elevation-2); z-index: var(--z-sidebar);
  padding: 0 var(--space-2); align-items: center; justify-content: space-around;
}
.bottombar-item {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 6px 12px; border-radius: var(--radius-sm);
  color: var(--on-surface-variant); font-size: 10px; font-weight: 500;
  transition: all var(--transition-fast); cursor: pointer; min-width: 56px;
}
.bottombar-item .material-icons-round { font-size: 22px; }
.bottombar-item.active { color: var(--primary); }
.bottombar-item:hover { color: var(--on-surface); }

/* ── Mobile Overlay ── */
.sidebar-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  z-index: calc(var(--z-sidebar) - 1);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .content-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.open { display: block; }
  .main-wrapper { margin-left: 0; padding-bottom: var(--bottombar-height); }
  .header-menu-btn { display: flex; }
  .bottombar { display: flex; }
  .page-content { padding: var(--margin-mobile); }
  .header { padding: 0 var(--margin-mobile); }
  .page-title { font-size: var(--headline-lg-mobile-size); }
  .kpi-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
  .page-header { flex-direction: column; align-items: flex-start; }
  .filters-bar { flex-direction: column; }
  .filters-bar .form-input, .filters-bar .form-select { max-width: 100%; }
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
  .page-actions { width: 100%; }
  .page-actions .btn { flex: 1; }
}

/* ── Print ── */
@media print {
  .sidebar, .header, .bottombar, .sidebar-overlay,
  .btn, .filters-bar, .page-actions { display: none !important; }
  .main-wrapper { margin-left: 0 !important; }
  .page-content { padding: 0 !important; }
  body { background: #fff; color: #000; }
  .data-table th, .data-table td { border: 1px solid #ccc; }
}