/* ==========================================================================
   layout.css - application shell (sidebar, topbar, mobile bottom bar, login)
   Includes PWA standalone safe-area geometry and native app navigation.
   ========================================================================== */
.app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ---- Sidebar -------------------------------------------------------- */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--navy-950);
  background-image: linear-gradient(180deg, #091a33 0%, #06111f 100%);
  color: #e2e8f0;
  display: flex;
  flex-direction: column;
  z-index: 60;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border-right: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: var(--sat);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 18px 16px;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.sidebar-brand:hover { text-decoration: none; }
.sidebar-brand img, .sidebar-brand svg {
  width: 42px;
  height: 42px;
  flex: none;
  filter: drop-shadow(0 2px 6px rgba(14, 165, 233, 0.3));
}
.sidebar-brand strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.25;
  color: #ffffff;
  letter-spacing: -0.01em;
}
.sidebar-brand span {
  display: block;
  font-size: 0.75rem;
  color: #94a3b8;
  margin-top: 2px;
}

.sidebar-role {
  margin: 14px 14px 6px;
  padding: 9px 12px;
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8125rem;
  color: #cbd5e1;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-role strong { color: #38bdf8; font-weight: 600; }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px 16px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}
.nav-group {
  margin: 16px 10px 6px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #64748b;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 42px;
  padding: 8px 12px;
  border-radius: var(--r-sm);
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.15s ease;
  margin-bottom: 2px;
}
.nav-link:hover {
  background: rgba(255, 255, 255, 0.07);
  color: #ffffff;
  text-decoration: none;
}
.nav-link[aria-current="page"] {
  background: linear-gradient(90deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.35);
}
.nav-link .icon {
  width: 1.15em;
  height: 1.15em;
  opacity: 0.85;
}
.nav-link[aria-current="page"] .icon { opacity: 1; }
.nav-link .count {
  margin-left: auto;
  background: #f59e0b;
  color: #451a03;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: var(--r-full);
  padding: 1px 7px;
  min-width: 20px;
  text-align: center;
}

.sidebar-foot {
  padding: 14px 18px;
  padding-bottom: max(16px, var(--sab));
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.75rem;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sidebar-foot span { display: flex; align-items: center; gap: 6px; }

.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(6, 17, 31, 0.65);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 55;
  display: none;
  transition: opacity 0.2s ease;
}

/* ---- Main + Topbar ---------------------------------------------------- */
.main {
  margin-left: var(--sidebar-w);
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: margin-left 0.25s ease;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: calc(var(--topbar-h) + var(--sat));
  padding-top: var(--sat);
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 24px;
  padding-right: 24px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 2px 0 rgba(15, 23, 42, 0.03);
}

.topbar-title {
  flex: 1;
  min-width: 0;
}
.topbar-title .crumbs {
  font-size: 0.8125rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 6px;
}
.topbar-title .crumbs a {
  color: var(--muted);
  text-decoration: none;
}
.topbar-title .crumbs a:hover {
  color: var(--blue-600);
}
.topbar-title .crumbs span[aria-current="page"] {
  color: var(--navy-900);
  font-weight: 600;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-period {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--navy-800);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--r-full);
  padding: 5px 12px;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Offline / Online Status Pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--r-full);
  background: #f1f5f9;
  color: var(--muted);
  border: 1px solid var(--border);
}
.status-pill.offline {
  background: #fef2f2;
  color: var(--red-700);
  border-color: #fecaca;
}
.status-pill.online {
  background: #ecfdf5;
  color: var(--green-700);
  border-color: #a7f3d0;
}
.status-pill .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

/* Discrete Environment Chip */
.demo-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #0369a1;
  background: #e0f2fe;
  border: 1px solid #bae6fd;
  border-radius: var(--r-full);
  padding: 3px 9px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.demo-chip:hover {
  background: #bae6fd;
  color: #0284c7;
}

.btn.menu-toggle { display: none; }

.content {
  flex: 1;
  padding: 28px 24px calc(var(--bottombar-h) + var(--sab) + 24px);
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
}

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.page-head h1 {
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}
.page-head p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.app-footer {
  padding: 16px 24px calc(var(--bottombar-h) + var(--sab) + 16px);
  font-size: 0.8125rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* ---- App Bottom Navigation Bar (PWA Standalone & Desktop/Mobile) ------------ */
.app-bottom-nav, .mobile-bottom-nav {
  display: flex;
  position: fixed;
  left: var(--sidebar-w);
  right: 0;
  bottom: 0;
  height: calc(var(--bottombar-h) + var(--sab));
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  z-index: 50;
  padding-bottom: max(6px, var(--sab));
  padding-top: 4px;
  box-shadow: 0 -3px 14px rgba(15, 23, 42, 0.06);
  align-items: center;
  transition: left 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.bottom-nav-tabs, .mobile-bottom-tabs {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 8px;
}

.bottom-tab-item, .mobile-tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px 4px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.73rem;
  font-weight: 600;
  gap: 3px;
  position: relative;
  border-radius: var(--r-sm);
  transition: all 0.15s ease;
}

.bottom-tab-item .icon, .mobile-tab-item .icon {
  width: 20px;
  height: 20px;
  transition: transform 0.15s ease;
}

.bottom-tab-item:hover, .mobile-tab-item:hover {
  color: var(--blue-700);
  background: var(--blue-50);
  text-decoration: none;
}
.bottom-tab-item:hover .icon, .mobile-tab-item:hover .icon {
  transform: translateY(-1px);
}

.bottom-tab-item[aria-current="page"], .mobile-tab-item[aria-current="page"] {
  color: var(--blue-600);
  font-weight: 700;
}
.bottom-tab-item[aria-current="page"]::before, .mobile-tab-item[aria-current="page"]::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 20%;
  right: 20%;
  height: 3px;
  background: var(--blue-600);
  border-radius: var(--r-full);
}

.bottom-tab-item .tab-badge, .mobile-tab-item .tab-badge {
  position: absolute;
  top: 2px;
  right: calc(50% - 16px);
  background: #f59e0b;
  color: #fff;
  border-radius: var(--r-full);
  font-size: 0.65rem;
  padding: 1px 5px;
  font-weight: 700;
  line-height: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* ---- User Menu -------------------------------------------------------- */
.menu-wrap { position: relative; }
.menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 240px;
  z-index: 70;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  padding: 6px;
  animation: menuDrop 0.15s ease;
}
@keyframes menuDrop {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.menu[hidden] { display: none; }
.menu-head {
  padding: 10px 12px 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.menu-head strong { display: block; font-size: 0.9rem; color: var(--navy-900); }
.menu-head small { color: var(--muted); display: block; margin-top: 2px; }
.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 40px;
  padding: 8px 12px;
  background: none;
  border: 0;
  border-radius: var(--r-sm);
  color: var(--text);
  text-align: left;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background 0.12s ease;
}
.menu-item:hover {
  background: var(--blue-50);
  color: var(--blue-700);
  text-decoration: none;
}
.menu-item .icon { color: var(--muted); }
.menu-item:hover .icon { color: var(--blue-600); }

/* ---- Login Page ------------------------------------------------------- */
.login {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  background: var(--bg);
}
.login-brand {
  background: var(--navy-950);
  color: #fff;
  padding: 60px 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 36px;
  background-image:
    radial-gradient(circle at 85% 15%, rgba(14, 165, 233, 0.28), transparent 48%),
    radial-gradient(circle at 10% 90%, rgba(2, 132, 199, 0.2), transparent 40%);
  position: relative;
  overflow: hidden;
}
.login-brand::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.02' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0H20L0 20M40 40V20L20 40'/%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.login-brand img, .login-brand svg {
  width: 72px;
  height: 72px;
  filter: drop-shadow(0 4px 12px rgba(14, 165, 233, 0.4));
}
.login-brand h1 {
  color: #ffffff;
  font-size: 2.1rem;
  max-width: 18ch;
  margin-top: 24px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.login-brand p {
  color: #94a3b8;
  max-width: 44ch;
  font-size: 1rem;
  line-height: 1.6;
  margin-top: 12px;
}
.login-points {
  display: grid;
  gap: 14px;
  max-width: 440px;
}
.login-points li {
  display: flex;
  gap: 12px;
  color: #e2e8f0;
  font-size: 0.92rem;
  align-items: flex-start;
}
.login-points .icon {
  color: #38bdf8;
  margin-top: 3px;
  width: 1.25em;
  height: 1.25em;
}
.login-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  background: var(--surface);
  overflow-y: auto;
}
.login-card {
  width: 100%;
  max-width: 430px;
}
.login-card h2 {
  font-size: 1.65rem;
  margin-bottom: 6px;
  color: var(--navy-900);
}
.role-tiles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 10px 0 20px;
}
.role-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 4px;
  min-height: 72px;
  background: #f8fafc;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 0.78rem;
  color: var(--navy-800);
  transition: all 0.15s ease;
}
.role-tile:hover {
  border-color: var(--blue-500);
  background: var(--blue-50);
  color: var(--blue-700);
}
.role-tile[aria-pressed="true"] {
  border-color: var(--blue-600);
  background: #f0f9ff;
  color: var(--blue-700);
  box-shadow: 0 0 0 2px var(--blue-500);
}
.role-tile .icon {
  width: 22px;
  height: 22px;
  color: var(--blue-600);
}

.login-demo-notice {
  margin-top: 20px;
  padding: 12px 14px;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: 0.8125rem;
  color: var(--muted);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.login-demo-notice .icon { color: var(--blue-600); margin-top: 2px; }

/* ---- Responsive & Standalone Media Queries ----------------------------- */
@media (max-width: 960px) {
  .sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  .app.nav-open .sidebar { transform: none; }
  .app.nav-open .sidebar-backdrop { display: block; }
  .main { margin-left: 0; }
  .app-bottom-nav, .mobile-bottom-nav { left: 0; }
  .btn.menu-toggle { display: inline-flex; }
  .topbar { padding-left: 14px; padding-right: 14px; }
  .content { padding: 18px 14px calc(var(--bottombar-h) + var(--sab) + 24px); }
  .topbar-period { display: none; }
  .login { grid-template-columns: 1fr; }
  .login-brand { padding: 32px 24px; gap: 20px; }
  .login-brand h1 { font-size: 1.6rem; margin-top: 14px; }
  .login-brand img, .login-brand svg { width: 54px; height: 54px; }
  .login-points { display: none; }
}

/* Standalone PWA Specific Tweaks */
@media all and (display-mode: standalone) {
  /* On iPhone / Android installed standalone, hide extra install prompts and add notch padding */
  #header-pwa-install, #menu-pwa-install { display: none !important; }
  body {
    user-select: none;
    -webkit-user-select: none;
  }
  input, textarea, select {
    user-select: auto;
    -webkit-user-select: auto;
  }
}