/* ===== App shell — blue/white enterprise ===== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

.app-body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  background-image:
    radial-gradient(ellipse 90% 60% at 0% -10%, rgba(22, 119, 255, 0.08), transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 0%, rgba(22, 119, 255, 0.04), transparent 50%);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

.app-root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-left: var(--sidebar-width);
  padding-bottom: 0;
  animation: appFadeIn 0.35s var(--ease-out);
}

@keyframes appFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .app-root { animation: none; }
  html { scroll-behavior: auto; }
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
  width: 100%;
}

/* ===== Sidebar ===== */
.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  z-index: 300;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition);
}

.app-sidebar__brand {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  user-select: none;
  transition: opacity var(--transition);
}

.brand-logo:hover { opacity: 0.9; }

.brand-logo__img {
  width: 30px;
  height: 30px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.brand-logo__text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.brand-logo:hover .brand-logo__text { color: var(--color-primary); }

.brand-logo--mobile {
  display: none;
}

.app-sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-3);
  scrollbar-width: thin;
}

.app-sidebar__group {
  margin-bottom: var(--space-5);
}

.app-sidebar__group-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0 var(--space-3);
  margin-bottom: var(--space-2);
}

.app-nav__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
  margin-bottom: 2px;
}

.app-nav__icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  opacity: 0.75;
}

.app-nav__icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

.app-nav__link:hover {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.app-nav__link:hover .app-nav__icon { opacity: 1; }

.app-nav__link.is-active {
  color: var(--color-primary);
  background: var(--color-primary-soft-strong);
  font-weight: 600;
}

.app-nav__link.is-active .app-nav__icon { opacity: 1; }

.app-sidebar__partners {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.brand-partners__img {
  display: block;
  width: auto;
  height: 18px;
  object-fit: contain;
  opacity: 0.85;
}

.brand-partners__img--china-blue { height: 16px; }
.brand-partners__img--opc { height: 20px; }

/* ===== Header / Topbar ===== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.app-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.app-header__inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0 var(--space-5);
  max-width: none;
}

.app-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.app-nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  transition: border-color var(--transition), background var(--transition);
}

.app-nav-toggle:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.app-nav-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.user-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 4px;
  border-radius: var(--radius-md);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
}

.user-chip__avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

.username {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.balance-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid transparent;
  text-decoration: none;
}

.balance-pill--link:hover {
  border-color: var(--color-primary);
}

.balance-pill__label {
  font-weight: 500;
  opacity: 0.8;
  font-size: 12px;
}

.user-bar__link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 8px 12px;
}

.user-bar__link:hover { color: var(--color-primary); }

.user-bar__btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}

.user-bar__btn:hover { background: var(--color-primary-hover); }
.user-bar__btn:active { transform: scale(0.98); background: var(--color-primary-active); }

.user-bar__logout {
  padding: 6px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  line-height: 1.3;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.user-bar__logout:hover {
  color: var(--color-danger);
  border-color: rgba(240, 68, 56, 0.35);
  background: rgba(240, 68, 56, 0.06);
}

.app-sidebar__footer {
  padding: var(--space-3) var(--space-3) var(--space-2);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.app-sidebar__logout {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.app-sidebar__logout:hover {
  color: var(--color-danger);
  border-color: rgba(240, 68, 56, 0.35);
  background: rgba(240, 68, 56, 0.06);
}

.app-more-drawer__link--logout {
  color: var(--color-text-secondary);
}

.app-more-drawer__link--logout:hover {
  color: var(--color-danger);
  background: rgba(240, 68, 56, 0.06);
}

/* ===== Main / Footer ===== */
.app-main {
  flex: 1;
  padding-top: var(--space-6);
  padding-bottom: var(--space-10);
  width: 100%;
}

.app-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  margin-top: auto;
}

.app-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-5);
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.app-footer__links {
  display: flex;
  gap: var(--space-4);
}

.app-footer__links a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.app-footer__links a:hover { color: var(--color-primary); }

/* ===== Page hero / breadcrumb / subnav ===== */
.page-hero {
  margin-bottom: var(--space-6);
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2vw, 1.875rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin: 0 0 var(--space-2);
}

.page-hero__desc {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.6;
  max-width: 42em;
}

.app-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
}

.app-breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.app-breadcrumb a:hover { color: var(--color-primary); }

.app-breadcrumb__sep { color: var(--color-border-strong); }
.app-breadcrumb__current { color: var(--color-text-secondary); }

.app-subnav {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  overflow-x: auto;
  padding-bottom: 2px;
}

.app-subnav__link {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  border: 1px solid transparent;
}

.app-subnav__link:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.app-subnav__link.is-active {
  background: var(--color-primary-soft-strong);
  color: var(--color-primary);
  border-color: rgba(22, 119, 255, 0.2);
  font-weight: 600;
}

/* ===== Backdrop / drawers ===== */
.app-nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 250;
  background: rgba(15, 23, 42, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.app-nav-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.app-bottom-nav {
  display: none;
}

.app-more-drawer {
  position: fixed;
  inset: 0;
  z-index: 400;
  background: rgba(15, 23, 42, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.app-more-drawer[hidden] { display: none !important; }

.app-more-drawer__panel {
  width: 100%;
  max-width: 520px;
  max-height: 78vh;
  background: var(--color-surface);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: var(--space-5);
  padding-bottom: calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
  box-shadow: var(--shadow-lg);
  overflow: auto;
  animation: drawerUp 0.28s var(--ease-out);
}

@keyframes drawerUp {
  from { transform: translateY(24px); opacity: 0.6; }
  to { transform: none; opacity: 1; }
}

.app-more-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.app-more-drawer__head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.app-more-drawer__close {
  border: none;
  background: var(--color-surface-3);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  font-size: 22px;
  color: var(--color-text-secondary);
  cursor: pointer;
}

.app-more-drawer__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

.app-more-drawer__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: border-color var(--transition), background var(--transition);
}

.app-more-drawer__link:hover,
.app-more-drawer__link.is-active {
  border-color: rgba(22, 119, 255, 0.35);
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

/* ===== Modals / Toast (shell layer) ===== */
.app-modal .app-modal__content,
.modal .modal-content {
  background: var(--color-surface) !important;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.app-modal__close {
  position: absolute;
  top: 12px;
  right: 14px;
  border: none;
  background: transparent;
  font-size: 22px;
  color: var(--color-text-muted);
  cursor: pointer;
}

.app-modal__sub {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin: 0 0 var(--space-4);
}

.app-toast,
.toast {
  background: var(--color-text) !important;
  color: #fff !important;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

/* ===== Tablet ===== */
@media (max-width: 1023px) {
  .app-root {
    padding-left: 0;
  }

  .app-sidebar {
    transform: translateX(-105%);
    box-shadow: var(--shadow-lg);
  }

  .app-sidebar.is-open {
    transform: translateX(0);
  }

  .app-nav-toggle {
    display: inline-flex;
  }

  .brand-logo--mobile {
    display: inline-flex;
  }

  .app-sidebar__partners {
    display: none;
  }
}

/* ===== A11y / empty ===== */
.app-nav__link:focus-visible,
.app-bottom-nav__item:focus-visible,
.user-bar__btn:focus-visible,
.app-nav-toggle:focus-visible,
.app-more-drawer__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.geo-empty,
.task-empty,
.works-empty {
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
}

/* ===== Mobile ===== */
@media (max-width: 639px) {
  .app-root {
    padding-bottom: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px));
  }

  .app-bottom-nav {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 280;
    height: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px));
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    justify-content: space-around;
    align-items: flex-start;
  }

  .app-bottom-nav__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    min-width: 0;
    padding: 6px 4px;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 10px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
  }

  .app-bottom-nav__item .app-nav__icon {
    width: 22px;
    height: 22px;
  }

  .app-bottom-nav__item .app-nav__icon svg {
    width: 20px;
    height: 20px;
  }

  .app-bottom-nav__item .app-nav__label {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .app-bottom-nav__item.is-active {
    color: var(--color-primary);
  }

  .app-bottom-nav__item:active {
    background: var(--color-primary-soft);
  }

  .username { display: none; }
  .brand-logo__text { font-size: var(--text-base); }

  .app-main {
    padding-top: var(--space-4);
    padding-bottom: var(--space-8);
  }

  .app-footer {
    display: none;
  }

  .user-bar__btn {
    padding: 7px 12px;
  }
}