/* ═══════════════════════════════════════════════════════
   GIS-Điện Bàn Bắc — App Shell Layout
   ═══════════════════════════════════════════════════════ */

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

/* ─── Top App Bar ─── */
.top-bar {
  position: fixed; top: 0; left: 72px; right: 0; height: 64px; z-index: 50;
  display: flex; align-items: center; padding: 0 16px; gap: 16px;
  background: var(--md-sys-color-surface);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  transition: left var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}
.top-bar-logo {
  display: flex; align-items: center; gap: 8px; text-decoration: none; flex-shrink: 0;
}
.top-bar-logo .material-symbols-outlined { font-size: 28px; color: var(--md-sys-color-primary); }
.top-bar-logo span {
  font-size: var(--md-sys-typescale-title-medium-size);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  color: var(--md-sys-color-primary);
}
.top-bar-search {
  flex: 1; max-width: 560px; margin: 0 auto;
  display: flex; align-items: center;
  height: 44px; padding: 0 16px; gap: 8px;
  background: var(--md-sys-color-surface-container-highest);
  border-radius: var(--md-sys-shape-full); border: none;
}
.top-bar-search input {
  flex: 1; background: none; border: none; outline: none;
  font-size: var(--md-sys-typescale-body-large-size);
  color: var(--md-sys-color-on-surface);
  font-family: var(--md-sys-typescale-font-family-text);
}
.top-bar-search input::placeholder { color: var(--md-sys-color-on-surface-variant); }
.top-bar-search .material-symbols-outlined { color: var(--md-sys-color-on-surface-variant); font-size: 20px; }
.top-bar-actions {
  display: flex; align-items: center; gap: 4px; flex-shrink: 0;
}
.top-bar-avatar {
  width: 36px; height: 36px; border-radius: var(--md-sys-shape-full);
  background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.top-bar-avatar:hover { box-shadow: 0 0 0 2px var(--md-sys-color-primary); }

/* ─── User Menu ─── */
.user-menu {
  position: absolute; top: 56px; right: 16px;
  width: 280px; background: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-medium); box-shadow: var(--md-sys-elevation-2);
  z-index: 200; overflow: hidden;
  transform: scaleY(0); transform-origin: top; opacity: 0;
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized);
}
.user-menu.open { transform: scaleY(1); opacity: 1; }
.user-menu-header { padding: 16px; display: flex; align-items: center; gap: 12px; }
.user-menu-avatar {
  width: 48px; height: 48px; border-radius: var(--md-sys-shape-full);
  background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 600; flex-shrink: 0;
}
.user-menu-item {
  display: flex; align-items: center; gap: 12px;
  height: 48px; padding: 0 16px; width: 100%;
  background: none; border: none; cursor: pointer;
  color: var(--md-sys-color-on-surface);
  font-size: var(--md-sys-typescale-body-medium-size);
  font-family: var(--md-sys-typescale-font-family-text);
  transition: background var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}
.user-menu-item:hover { background: rgba(0,0,0,0.08); }
.user-menu-item.danger { color: var(--md-sys-color-error); }
.user-menu-item .material-symbols-outlined { font-size: 20px; color: var(--md-sys-color-on-surface-variant); }
.user-menu-item.danger .material-symbols-outlined { color: var(--md-sys-color-error); }

/* ─── Notification Menu ─── */
.notification-menu {
  position: absolute; top: 56px; right: 64px;
  width: 360px; background: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-medium); box-shadow: var(--md-sys-elevation-3);
  z-index: 200; overflow: hidden;
  transform: scaleY(0); transform-origin: top; opacity: 0;
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized);
  display: flex; flex-direction: column;
}
.notification-menu.open { transform: scaleY(1); opacity: 1; }
.notification-header {
  padding: 16px; border-bottom: 1px solid var(--md-sys-color-outline-variant);
  display: flex; align-items: center; justify-content: space-between;
}
.notification-tabs {
  display: flex; border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.notification-tab {
  flex: 1; padding: 12px 0; text-align: center; cursor: pointer;
  font-size: var(--md-sys-typescale-label-medium-size);
  font-weight: 500; color: var(--md-sys-color-on-surface-variant);
  position: relative;
}
.notification-tab.active { color: var(--md-sys-color-primary); }
.notification-tab.active::after {
  content: ''; position: absolute; bottom: 0; left: 15%; right: 15%;
  height: 3px; background: var(--md-sys-color-primary); border-radius: 3px 3px 0 0;
}
.notification-body {
  max-height: 400px; overflow-y: auto;
}
.noti-item {
  display: flex; gap: 12px; padding: 16px;
  border-bottom: 1px solid var(--md-sys-color-surface-container);
  cursor: pointer; transition: background 0.2s;
}
.noti-item:hover { background: rgba(0,109,91,0.04); }
.noti-item.unread { background: var(--md-sys-color-primary-container); }
.noti-item.unread:hover { background: rgba(0,109,91,0.12); }
.noti-icon {
  width: 40px; height: 40px; border-radius: var(--md-sys-shape-full);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.noti-icon.info { background: #E3F2FD; color: #1976D2; }
.noti-icon.success { background: #E8F5E9; color: #388E3C; }
.noti-icon.warning { background: #FFF3E0; color: #F57C00; }
.noti-icon.system { background: #F3E5F5; color: #7B1FA2; }
.noti-content { flex: 1; }
.noti-title {
  font-size: var(--md-sys-typescale-body-medium-size);
  font-weight: 600; color: var(--md-sys-color-on-surface);
  margin-bottom: 4px; line-height: 1.4;
}
.noti-desc {
  font-size: var(--md-sys-typescale-body-small-size);
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 8px; line-height: 1.4;
}
.noti-time {
  font-size: 11px; color: var(--md-sys-color-on-surface-variant);
}
.notification-footer {
  padding: 12px; text-align: center;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container-low);
  cursor: pointer; font-size: var(--md-sys-typescale-label-medium-size);
  color: var(--md-sys-color-primary); font-weight: 500;
}
.notification-footer:hover { background: rgba(0,109,91,0.04); }

/* ─── Navigation Rail ─── */
.nav-rail {
  position: fixed; top: 0; left: 0; bottom: 0; width: 72px; z-index: 60;
  display: flex; flex-direction: column; align-items: center;
  padding: 8px 0; gap: 4px;
  background: var(--md-sys-color-surface-container-low);
  border-right: 1px solid var(--md-sys-color-outline-variant);
}
.nav-rail-logo {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 8px;
}
.nav-rail-logo .material-symbols-outlined { font-size: 32px; color: var(--md-sys-color-primary); }
.nav-rail-items { display: flex; flex-direction: column; gap: 4px; flex: 1; width: 100%; padding: 0 8px; }
.nav-rail-item {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 4px 0; cursor: pointer; text-decoration: none;
  border: none; background: none; width: 100%;
  transition: all var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}
.nav-rail-item .icon-wrap {
  width: 56px; height: 32px; border-radius: var(--md-sys-shape-full);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  transition: background var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.nav-rail-item:hover .icon-wrap { background: rgba(0,109,91,0.08); }
.nav-rail-item .material-symbols-outlined {
  font-size: 24px; color: var(--md-sys-color-on-surface-variant);
  transition: color var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}
.nav-rail-item .nav-label {
  font-size: var(--md-sys-typescale-label-medium-size);
  font-weight: var(--md-sys-typescale-label-medium-weight);
  color: var(--md-sys-color-on-surface-variant);
  text-align: center;
}
.nav-rail-item.active .icon-wrap {
  background: var(--md-sys-color-primary-container);
}
.nav-rail-item.active .material-symbols-outlined { color: var(--md-sys-color-on-primary-container); }
.nav-rail-item.active .nav-label { color: var(--md-sys-color-on-surface); font-weight: 600; }

.nav-rail-bottom { margin-top: auto; width: 100%; padding: 0 8px; }

/* ─── Content Area ─── */
.app-content {
  flex: 1; margin-left: 72px; margin-top: 64px;
  height: calc(100vh - 64px); overflow-y: auto;
  padding: 24px;
  background: var(--md-sys-color-surface);
  transition: margin-left var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}
.app-content.full-map { padding: 0; overflow: hidden; }

/* ─── Page Header ─── */
.page-header { margin-bottom: 24px; }
.page-header h1 {
  font-size: var(--md-sys-typescale-headline-medium-size);
  font-weight: var(--md-sys-typescale-headline-medium-weight);
  line-height: var(--md-sys-typescale-headline-medium-line-height);
  color: var(--md-sys-color-on-surface);
}
.page-header p {
  font-size: var(--md-sys-typescale-body-medium-size);
  color: var(--md-sys-color-on-surface-variant);
  margin-top: 4px;
}

/* ─── Grid Layouts ─── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-dashboard {
  display: grid; grid-template-columns: 1fr 360px; gap: 24px;
}

/* ─── Flex Utils ─── */
.flex-row { display: flex; align-items: center; }
.flex-col { display: flex; flex-direction: column; }
.gap-4 { gap: 4px; } .gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .gap-16 { gap: 16px; } .gap-24 { gap: 24px; }
.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.items-start { align-items: flex-start; }

/* ─── Action Bar ─── */
.action-bar {
  display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap;
}
.action-bar-left { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; flex: 1; }
.action-bar-right { display: flex; align-items: center; gap: 8px; }

/* ─── Bottom Sheet ─── */
.bottom-sheet-scrim {
  position: fixed; inset: 0; z-index: 800;
  background: rgba(0,0,0,0.32);
  opacity: 0; pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}
.bottom-sheet-scrim.open { opacity: 1; pointer-events: auto; }
.bottom-sheet {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 801;
  background: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-extra-large) var(--md-sys-shape-extra-large) 0 0;
  box-shadow: var(--md-sys-elevation-1);
  padding: 24px; padding-top: 16px;
  transform: translateY(100%);
  transition: transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}
.bottom-sheet.open { transform: translateY(0); }
.bottom-sheet-handle {
  width: 32px; height: 4px; background: var(--md-sys-color-outline-variant);
  border-radius: 2px; margin: 0 auto 16px;
}
.bottom-sheet-item {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 0; cursor: pointer; border: none; background: none; width: 100%;
  font-size: var(--md-sys-typescale-body-large-size);
  color: var(--md-sys-color-on-surface);
  font-family: var(--md-sys-typescale-font-family-text);
}
.bottom-sheet-item:hover { opacity: 0.8; }
.bottom-sheet-item .material-symbols-outlined { font-size: 24px; color: var(--md-sys-color-primary); }

/* ─── Login Layout ─── */
.login-layout {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 24px;
  background: var(--md-sys-color-surface-container-low);
}
.login-card {
  width: 100%; max-width: 400px; padding: 40px;
  background: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-extra-large);
  box-shadow: var(--md-sys-elevation-2);
  text-align: center;
}

/* ─── Responsive ─── */
@media (max-width: 1199px) {
  .grid-dashboard { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 839px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 599px) {
  .nav-rail { display: none; }
  .top-bar { left: 0; }
  .app-content { margin-left: 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ─── Global Loader ─── */
.global-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--md-sys-color-surface);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px;
  opacity: 1; visibility: visible;
  transition: opacity 0.4s cubic-bezier(0.2, 0, 0, 1), visibility 0.4s;
}
.global-loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-brand {
  display: flex; align-items: center; gap: 12px;
  font-size: 28px; font-weight: 700; color: var(--md-sys-color-primary);
  animation: fadeUp 0.6s ease-out;
}
.loader-brand .material-symbols-outlined { font-size: 36px; }
.loader-spinner-wrap { position: relative; width: 48px; height: 48px; animation: fadeIn 0.8s ease-out 0.2s both; }
.loader-spinner {
  position: absolute; inset: 0;
  border: 4px solid var(--md-sys-color-surface-container-highest);
  border-top-color: var(--md-sys-color-primary);
  border-radius: 50%;
  animation: loaderSpin 1s linear infinite;
}
.loader-text {
  font-size: var(--md-sys-typescale-body-medium-size);
  color: var(--md-sys-color-on-surface-variant);
  animation: fadeIn 0.8s ease-out 0.4s both;
  letter-spacing: 0.5px;
}
@keyframes loaderSpin { to { transform: rotate(360deg); } }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}