/* ===== App shell — enterprise layout layer ===== */

.app-body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(139, 92, 246, 0.08), transparent);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app-root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 200;
  /* Solid-ish surface — avoid backdrop-filter here: it creates a containing
     block that traps the mobile position:fixed nav drawer (zero-height menu). */
  background: rgba(10, 10, 16, 0.94);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

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

.app-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.app-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  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: 0.92; }

.brand-logo__img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.brand-logo__text {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

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

.brand-partners {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 2px;
  padding-left: 14px;
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  min-width: 0;
}

.brand-partners__img {
  display: block;
  width: auto;
  height: 22px;
  object-fit: contain;
  opacity: 0.92;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.25));
}

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

.brand-partners__img--opc {
  height: 24px;
}

/* Nav */
.app-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.app-nav::-webkit-scrollbar { display: none; }

.app-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
}

.app-nav__icon {
  font-size: 11px;
  opacity: 0.65;
}

.app-nav__link:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

.app-nav__link.is-active {
  color: var(--color-text);
  background: var(--color-primary-soft);
  box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.25);
}

.app-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.app-nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: var(--transition);
}

.app-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 190;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

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

/* User bar */
.user-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.user-bar a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition);
}

.user-bar a:hover { color: var(--color-text); }

.user-bar__link { padding: 8px 12px; }

.user-bar__btn {
  padding: 8px 16px !important;
  border-radius: var(--radius-full);
  background: var(--color-primary) !important;
  color: #fff !important;
  font-weight: 500;
}

.user-bar__btn:hover {
  background: var(--color-primary-hover) !important;
  color: #fff !important;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px 4px 4px;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
}

.user-chip__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  text-transform: uppercase;
}

.username {
  font-size: var(--text-sm);
  color: var(--color-text);
  max-width: 100px;
  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-full);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-success);
  font-variant-numeric: tabular-nums;
}

.balance-pill__label {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

/* Main & footer */
.app-main {
  flex: 1;
  padding-top: var(--space-6);
  padding-bottom: var(--space-10);
}

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

.app-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--text-xs);
  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;
  transition: color var(--transition);
}

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

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

.page-hero__title {
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin: 0 0 var(--space-2);
}

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

.app-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
}

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

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

.app-breadcrumb__sep { color: var(--color-text-muted); opacity: 0.5; }

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

/* Sub navigation */
.app-subnav {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  padding: var(--space-1);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  width: fit-content;
  max-width: 100%;
  overflow-x: auto;
}

.app-subnav__link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition);
}

.app-subnav__link:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.04);
}

.app-subnav__link.is-active {
  color: #fff;
  background: var(--color-primary);
}

/* Tool pages — hero spans full width, panels stay 2-col */
.app-main.main,
.app-main.geo-main,
.app-main.edit-main {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: var(--space-6);
}

.page-hero,
.app-breadcrumb,
.app-subnav {
  grid-column: 1 / -1;
}

/* Panels — polish existing components */
.preview-panel,
.settings-panel,
.wallet-panel,
.geo-panel,
.wallet-resale-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.generate-btn,
.wallet-btn:not(.wallet-btn--ghost) {
  background: linear-gradient(135deg, var(--color-primary) 0%, #7c3aed 100%);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.generate-btn:hover:not(:disabled),
.wallet-btn:not(.wallet-btn--ghost):hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.45);
}

.generate-btn:active:not(:disabled) { transform: translateY(0); }

.generate-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Modals */
.app-modal .modal-content,
.app-modal__content {
  position: relative;
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-lg);
}

.app-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-secondary);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.app-modal__close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text);
}

.app-modal__sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: -8px 0 16px;
}

.modal input,
.settings-panel input[type="text"],
.settings-panel input[type="password"],
.settings-panel textarea,
.settings-panel select {
  border: 1px solid var(--color-border-strong);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.modal input:focus,
.settings-panel input:focus,
.settings-panel textarea:focus,
.settings-panel select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

/* Toast */
.app-toast,
.toast {
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
}

/* Tabs — unified pill style */
.works-tabs,
.geo-tabs,
.material-tabs,
.wallet-records-tabs,
.task-category-tabs {
  gap: var(--space-2) !important;
  padding: var(--space-1);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  width: fit-content;
  max-width: 100%;
}

.works-tab,
.geo-tab,
.material-tabs a,
.wallet-records-tab,
.task-category-tabs button,
.task-category-tabs a {
  border-radius: var(--radius-sm) !important;
  transition: all var(--transition) !important;
}

.works-tab.active,
.geo-tab.active,
.material-tabs a.active,
.wallet-records-tab.active {
  background: var(--color-primary) !important;
  color: #fff !important;
  border-color: transparent !important;
}

/* Cards */
.feature-card,
.task-card,
.works-item,
.geo-history-item,
.material-card,
.tx-card {
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.feature-card--link:hover,
.task-card:hover,
.works-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
}

.feature-card {
  background: var(--color-surface-2);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.feature-icon--indigo { background: linear-gradient(145deg, #4f46e5, #6366f1); }
.feature-icon--violet { background: linear-gradient(145deg, #7c3aed, #8b5cf6); }
.feature-icon--orange { background: linear-gradient(145deg, #ea580c, #f97316); }
.feature-icon--red { background: linear-gradient(145deg, #dc2626, #ef4444); }
.feature-icon--cyan { background: linear-gradient(145deg, #0891b2, #06b6d4); }
.feature-icon--sky { background: linear-gradient(145deg, #0284c7, #0ea5e9); }
.feature-icon--slate { background: linear-gradient(145deg, #475569, #64748b); }
.feature-icon--amber { background: linear-gradient(145deg, #d97706, #f59e0b); }
.feature-icon--green { background: linear-gradient(145deg, #059669, #10b981); }
.feature-icon--pink { background: linear-gradient(145deg, #db2777, #ec4899); }

.feature-arrow {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  transition: transform var(--transition), color var(--transition);
}

.feature-card--link:hover .feature-arrow {
  color: var(--color-primary-hover);
  transform: translateX(3px);
}

.feature-badge {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

/* Guide / landing pages */
.guide-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  max-width: 960px;
}

.page-guide .guide-hero--compact {
  padding-top: var(--space-2);
}

.page-guide .guide-hero--compact h1 {
  display: none;
}

.guide-hero-badge--live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.guide-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.guide-feature-icon--cyan { background: linear-gradient(145deg, #0891b2, #06b6d4); }
.guide-feature-icon--indigo { background: linear-gradient(145deg, #4f46e5, #6366f1); }
.guide-feature-icon--green { background: linear-gradient(145deg, #059669, #10b981); }
.guide-feature-icon--amber { background: linear-gradient(145deg, #d97706, #f59e0b); }
.guide-feature-icon--red { background: linear-gradient(145deg, #dc2626, #ef4444); }
.guide-feature-icon--violet { background: linear-gradient(145deg, #7c3aed, #8b5cf6); }

.agent-app-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  border-radius: 16px;
  background: linear-gradient(145deg, #0891b2, #6366f1);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.03em;
}

/* Task category tabs */
.category-tabs {
  gap: var(--space-2) !important;
  padding: var(--space-1) !important;
  background: var(--color-surface) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-md) !important;
  width: fit-content;
  max-width: 100%;
  overflow-x: auto;
}

.category-tabs .tab {
  border-radius: var(--radius-sm) !important;
  transition: all var(--transition) !important;
  border: none !important;
  background: transparent !important;
  color: var(--color-text-secondary) !important;
  font-weight: 500 !important;
}

.category-tabs .tab:hover {
  color: var(--color-text) !important;
  background: rgba(255, 255, 255, 0.04) !important;
}

.category-tabs .tab.active {
  background: var(--color-primary) !important;
  color: #fff !important;
}

/* Pagination */
.geo-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding: var(--space-3) 0;
}

.geo-pagination a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: all var(--transition);
}

.geo-pagination a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-hover);
  background: var(--color-primary-soft);
}

.geo-pagination span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* Home */
.home-main { padding-top: var(--space-4); }

.home-footer-tip {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  margin-top: var(--space-8);
}

.carousel {
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

/* Works / action buttons */
.works-action-btn,
.geo-action-btn {
  border: 1px solid var(--color-border-strong);
  transition: all var(--transition);
}

.works-action-btn:hover,
.geo-action-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-hover);
}

/* Status badges */
.status-badge {
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* Empty states */
.geo-empty,
.tx-empty {
  padding: var(--space-10) var(--space-5);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.02);
}

/* Scrollbar */
.settings-panel::-webkit-scrollbar,
.app-nav::-webkit-scrollbar { width: 6px; height: 6px; }
.settings-panel::-webkit-scrollbar-thumb,
.app-nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 3px;
}

/* Responsive */
@media (max-width: 1024px) {
  .app-nav-toggle { display: flex; }

  .app-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    padding: var(--space-4);
    padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
    overflow-y: auto;
    overflow-x: hidden;
    width: min(320px, 86vw);
    box-shadow: var(--shadow-lg);
  }

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

  .app-nav__link {
    padding: 14px 16px;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
  }

  .main,
  .geo-main,
  .edit-main {
    grid-template-columns: 1fr !important;
  }

  .settings-panel {
    max-height: none;
  }
}

@media (max-width: 900px) {
  .brand-partners { gap: 8px; padding-left: 10px; }
  .brand-partners__img--china-blue { height: 16px; }
  .brand-partners__img--opc { height: 18px; }
}

@media (max-width: 640px) {
  .app-header__inner { gap: var(--space-3); }
  .brand-logo__text { display: none; }
  .brand-partners {
    gap: 6px;
    padding-left: 8px;
    margin-left: 0;
  }
  .brand-partners__img--china-blue { height: 14px; }
  .brand-partners__img--opc { height: 16px; }
  .balance-pill { display: none; }
  .page-hero__title { font-size: var(--text-xl); }
  .container { padding: 0 var(--space-4); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}