/* Hub app shell — hamburger drawer nav + bottom tabs on small screens */

:root {
  --oml-panel-w: min(17.5rem, 88vw);
  --oml-mobile-header-h: 3.25rem;
  --oml-bottom-nav-h: 3.75rem;
  --oml-hub-shadow-sm: rgba(0, 0, 0, 0.06);
  --oml-hub-shadow-md: rgba(0, 0, 0, 0.12);
  --oml-hub-shadow-lg: rgba(0, 0, 0, 0.18);
  --oml-hub-hover-soft: var(--oml-accent-soft-bg);
  --oml-hub-tab-active-bg: rgba(16, 99, 71, 0.08);
  --oml-safe-bottom: env(safe-area-inset-bottom, 0px);
  --oml-safe-top: env(safe-area-inset-top, 0px);
  --oml-drawer-ease: cubic-bezier(0.32, 0.72, 0, 1);
}

body.oml-has-hub {
  display: block;
  min-height: 100vh;
}

body.oml-hub-nav-open {
  overflow: hidden;
}

.oml-hub-shell {
  min-height: 100vh;
  min-height: 100dvh;
  width: 100%;
  background: #fff;
}

/* ── App header ── */

.oml-hub-mobile-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 180;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-height: var(--oml-mobile-header-h);
  padding: calc(0.35rem + var(--oml-safe-top)) 0.75rem 0.35rem;
  border-bottom: 1px solid var(--oml-edge);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.oml-hub-mobile-title {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--oml-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Hamburger icon ── */

.oml-hub-menu-icon {
  position: relative;
  display: block;
  width: 1.15rem;
  height: 0.85rem;
}

.oml-hub-menu-bar {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition:
    transform 0.28s var(--oml-drawer-ease),
    opacity 0.2s ease,
    top 0.28s var(--oml-drawer-ease);
}

.oml-hub-menu-bar:nth-child(1) {
  top: 0;
}

.oml-hub-menu-bar:nth-child(2) {
  top: calc(50% - 1px);
}

.oml-hub-menu-bar:nth-child(3) {
  top: calc(100% - 2px);
}

.oml-hub-menu-btn--open .oml-hub-menu-bar:nth-child(1) {
  top: calc(50% - 1px);
  transform: rotate(45deg);
}

.oml-hub-menu-btn--open .oml-hub-menu-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.4);
}

.oml-hub-menu-btn--open .oml-hub-menu-bar:nth-child(3) {
  top: calc(50% - 1px);
  transform: rotate(-45deg);
}

/* ── Slide-in nav panel ── */

.oml-hub-sidebar,
.oml-hub-nav-panel {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--oml-panel-w);
  max-width: 100%;
  background: #fff;
  border-right: 1px solid var(--oml-edge);
  border-radius: 0 0.85rem 0.85rem 0;
  padding: 0.85rem 0;
  padding-top: calc(0.85rem + var(--oml-safe-top));
  box-shadow: 8px 0 32px var(--oml-hub-shadow-lg);
  z-index: 220;
  display: flex;
  flex-direction: column;
  visibility: hidden;
  transform: translateX(calc(-100% - 0.5rem));
  transition:
    transform 0.34s var(--oml-drawer-ease),
    visibility 0.34s step-end;
}

.oml-hub-shell--nav-open .oml-hub-sidebar {
  visibility: visible;
  transform: translateX(0);
  transition:
    transform 0.34s var(--oml-drawer-ease),
    visibility 0s step-start;
}

.oml-hub-drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 210;
  border: 0;
  padding: 0;
  margin: 0;
  background: rgba(15, 23, 20, 0.38);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  opacity: 0;
  pointer-events: none;
  cursor: default;
  transition: opacity 0.3s ease;
}

.oml-hub-shell--nav-open .oml-hub-drawer-backdrop {
  opacity: 1;
  pointer-events: auto;
}

.oml-hub-sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem 0.85rem;
  border-bottom: 1px solid var(--oml-border);
  margin-bottom: 0.35rem;
  flex-shrink: 0;
}

.oml-hub-drawer-close {
  display: inline-grid;
}

.oml-hub-close-icon {
  position: relative;
  display: block;
  width: 1rem;
  height: 1rem;
}

.oml-hub-close-icon span {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  margin-top: -1px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.25s var(--oml-drawer-ease);
}

.oml-hub-close-icon span:first-child {
  transform: rotate(45deg);
}

.oml-hub-close-icon span:last-child {
  transform: rotate(-45deg);
}

.oml-hub-drawer-close:hover .oml-hub-close-icon span:first-child {
  transform: rotate(45deg) scaleX(1.08);
}

.oml-hub-drawer-close:hover .oml-hub-close-icon span:last-child {
  transform: rotate(-45deg) scaleX(1.08);
}

.oml-hub-sidebar-brand {
  min-width: 0;
  flex: 1;
  padding-left: 0.05rem;
}

.oml-hub-brand {
  display: block;
  text-decoration: none;
}

.oml-hub-brand:hover {
  opacity: 1;
}

.oml-logo-mark {
  display: block;
  width: 7.5rem;
  height: auto;
  max-width: 100%;
  flex-shrink: 0;
}

.oml-logo-mark__ink {
  fill: var(--oml-text);
}

.oml-logo-mark__accent {
  fill: var(--oml-accent-text);
}

.oml-hub-sidebar-head .oml-hub-icon-btn {
  margin-right: -0.05rem;
}

.oml-hub-icon-btn {
  width: 2.75rem;
  height: 2.75rem;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--oml-border);
  border-radius: 0.55em;
  background: #fff;
  color: var(--oml-text);
  cursor: pointer;
  font-family: inherit;
  line-height: 0;
  flex-shrink: 0;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
}

.oml-hub-menu-btn:active {
  transform: scale(0.96);
}

@media (prefers-reduced-motion: reduce) {
  .oml-hub-menu-bar,
  .oml-hub-close-icon span,
  .oml-hub-icon-btn,
  .oml-hub-sidebar,
  .oml-hub-drawer-backdrop,
  .oml-hub-nav {
    transition: none;
    animation: none !important;
  }
}

.oml-hub-icon-btn:hover {
  background: var(--oml-panel);
  border-color: var(--oml-accent-focus);
}

.oml-hub-icon-btn:focus-visible {
  outline: 2px solid var(--oml-accent-text);
  outline-offset: 2px;
}

.oml-hub-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0.35rem 0.5rem 0.75rem;
  -webkit-overflow-scrolling: touch;
}

.oml-hub-shell--nav-open .oml-hub-nav {
  animation: oml-hub-panel-content-in 0.38s var(--oml-drawer-ease) 0.06s backwards;
}

@keyframes oml-hub-panel-content-in {
  from {
    opacity: 0;
    transform: translateX(-0.65rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.oml-hub-nav[aria-label="Primary"] {
  display: flex;
  flex-direction: column;
}

.oml-hub-section {
  margin-top: 0.35rem;
}

.oml-hub-section-label {
  margin: 0.35rem 0.75rem 0.25rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--oml-muted);
}

.oml-hub-link--external {
  justify-content: space-between;
}

.oml-hub-external-icon {
  flex-shrink: 0;
  width: 0.9rem;
  height: 0.9rem;
  margin-left: auto;
  opacity: 0.72;
}

.oml-hub-link--external:hover .oml-hub-external-icon,
.oml-hub-link--external[aria-current="page"] .oml-hub-external-icon {
  opacity: 1;
}

.oml-hub-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.oml-hub-link,
.oml-hub-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  margin: 0.1rem 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--oml-text);
  border: 0;
  border-left: 3px solid transparent;
  border-radius: 0 0.45rem 0.45rem 0;
  background: transparent;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  box-sizing: border-box;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.oml-hub-link:active,
.oml-hub-nav-btn:active {
  transform: scale(0.985);
}

.oml-hub-link:hover,
.oml-hub-nav-btn:hover {
  opacity: 1;
  background: var(--oml-hub-hover-soft);
  text-decoration: none;
  color: var(--oml-text);
}

.oml-hub-link[aria-current="page"],
.oml-hub-nav-btn.is-active {
  border-left-color: var(--oml-accent-text);
  background: var(--oml-hub-tab-active-bg);
  color: var(--oml-accent-text);
}

.oml-hub-disclosure {
  margin-top: 0.15rem;
}

.oml-hub-disclosure-toggle {
  justify-content: space-between;
}

.oml-hub-disclosure-toggle.is-open {
  background: var(--oml-hub-hover-soft);
}

.oml-hub-disclosure-chevron {
  flex-shrink: 0;
  margin-left: auto;
  opacity: 0.72;
  transition: transform 0.2s ease;
}

.oml-hub-disclosure-chevron.is-open {
  transform: rotate(90deg);
}

.oml-hub-disclosure-panel {
  display: none;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
}

.oml-hub-disclosure-panel.is-open {
  display: flex;
}

.oml-hub-disclosure-panel .oml-hub-link {
  padding-left: 1.35rem;
  font-size: 0.8125rem;
}

/* ── Bottom tab bar (mobile) ── */

.oml-hub-bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 190;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  min-height: calc(var(--oml-bottom-nav-h) + var(--oml-safe-bottom));
  padding-bottom: var(--oml-safe-bottom);
  border-top: 1px solid var(--oml-edge);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
}

.oml-hub-bottom-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  min-height: var(--oml-bottom-nav-h);
  padding: 0.35rem 0.2rem;
  border: 0;
  background: transparent;
  color: var(--oml-muted);
  font-family: inherit;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
}

.oml-hub-bottom-tab-label {
  line-height: 1.1;
  text-align: center;
}

.oml-hub-bottom-tab.is-active {
  color: var(--oml-accent-text);
}

.oml-hub-bottom-tab:focus-visible {
  outline: 2px solid var(--oml-accent-text);
  outline-offset: -2px;
}

/* ── Main content ── */

.oml-hub-main {
  min-height: 100vh;
  min-height: 100dvh;
  margin-left: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: #fff;
  padding-top: calc(var(--oml-mobile-header-h) + var(--oml-safe-top));
  padding-bottom: calc(var(--oml-bottom-nav-h) + var(--oml-safe-bottom));
}

.oml-hub-shell--loading .oml-hub-main {
  opacity: 0.72;
  pointer-events: none;
}

body.oml-has-hub .oml-hub-main #body-container {
  margin: 0 auto;
  width: 100%;
}

body.oml-has-hub .oml-hub-main .tool-title,
body.oml-has-hub .oml-hub-main .oml-hub-welcome-title {
  display: block;
  font-size: 0;
  line-height: 0;
  color: transparent;
  overflow: hidden;
  user-select: none;
  pointer-events: none;
}

body.oml-has-hub .oml-hub-main .tool-title {
  margin: 0.25rem 0 0.5rem;
  min-height: 1.25rem;
}

body.oml-has-hub .oml-hub-main .oml-hub-welcome-title {
  margin: 0 0 0.35rem;
  min-height: 1.5rem;
}

body.oml-has-hub.oml-hub-home .oml-hub-main #body-container {
  max-width: 48rem;
  padding-top: 0.5rem;
}

body.oml-has-hub .oml-hub-main footer {
  margin-top: auto;
}

.oml-hub-welcome-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  color: var(--oml-text);
}

.oml-hub-welcome-lead {
  font-size: 0.95rem;
  color: var(--oml-muted);
  margin: 0 0 1.75rem;
  line-height: 1.55;
}

.oml-hub-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 0.85rem;
}

.oml-hub-card {
  display: block;
  padding: 1rem 1.05rem;
  border: 1px solid var(--oml-edge);
  border-radius: 0.45em;
  background: var(--oml-panel);
  color: var(--oml-text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.oml-hub-card:hover {
  opacity: 1;
  border-color: var(--oml-accent-focus);
  box-shadow: 0 2px 10px var(--oml-accent-glow);
}

.oml-hub-card-title {
  font-size: 0.92rem;
  font-weight: 600;
  margin: 0 0 0.3rem;
  color: var(--oml-text);
}

.oml-hub-card-desc {
  font-size: 0.78rem;
  color: var(--oml-muted);
  margin: 0;
  line-height: 1.4;
}

/* ── Large screens: hide bottom tabs, keep drawer nav ── */

@media (min-width: 60rem) {
  .oml-hub-bottom-nav {
    display: none;
  }

  .oml-hub-main {
    padding-bottom: 0;
  }

  body.oml-has-hub.oml-hub-home .oml-hub-main #body-container {
    padding-top: 1.5rem;
  }

  .oml-hub-legacy-frame {
    height: calc(100dvh - var(--oml-mobile-header-h) - var(--oml-safe-top) - var(--oml-safe-bottom));
  }

  .oml-hub-shell--legacy-iframe .oml-hub-main {
    padding-bottom: 0;
  }
}

/* ── Legacy iframe embed ── */

.oml-hub-shell--legacy-iframe .oml-hub-main footer {
  display: none;
}

.oml-hub-shell--legacy-iframe .oml-hub-main #body-container {
  max-width: none;
  width: 100%;
  margin: 0;
  padding: 0;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.oml-hub-legacy-viewport {
  position: relative;
  flex: 1;
  display: flex;
  min-height: 0;
}

.oml-hub-legacy-loading {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  background: rgba(255, 255, 255, 0.92);
  transition: opacity 0.2s ease;
}

.oml-hub-legacy-viewport:not(.oml-hub-legacy-viewport--loading) .oml-hub-legacy-loading {
  opacity: 0;
  pointer-events: none;
}

.oml-hub-legacy-spinner {
  width: 2.25rem;
  height: 2.25rem;
  border: 3px solid var(--oml-accent-soft-bg);
  border-top-color: var(--oml-accent-text);
  border-radius: 50%;
  animation: oml-hub-spin 0.75s linear infinite;
}

.oml-hub-legacy-loading-label {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--oml-muted);
}

@keyframes oml-hub-spin {
  to {
    transform: rotate(360deg);
  }
}

.oml-hub-legacy-frame {
  flex: 1;
  width: 100%;
  min-height: 20rem;
  height: calc(
    100dvh - var(--oml-mobile-header-h) - var(--oml-bottom-nav-h) -
      var(--oml-safe-top) - var(--oml-safe-bottom)
  );
  border: 0;
  background: #fff;
  opacity: 1;
  transition: opacity 0.25s ease;
}

.oml-hub-legacy-frame--loading {
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  .oml-hub-legacy-spinner {
    animation: none;
    border-top-color: var(--oml-accent-soft-bg);
    border-right-color: var(--oml-accent-text);
  }

  .oml-hub-legacy-frame,
  .oml-hub-legacy-loading {
    transition: none;
  }
}