* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--iq-font);
}

body {
  background: var(--iq-page);
  color: var(--iq-text);
}

.tg-desktop-chrome {
  display: block;
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
}

.tg-topbar {
  height: 72px;
  background: linear-gradient(180deg, rgba(33, 38, 47, 0.98), rgba(36, 42, 52, 0.98));
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.tg-topbar__inner {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.tg-topbar__icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(110, 198, 255, 0.22);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)), rgba(15, 18, 26, 0.94);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  flex: 0 0 auto;
  overflow: hidden;
}

.tg-topbar__icon img {
  width: 26px;
  height: 26px;
  object-fit: contain;
  display: block;
}

.tg-topbar__pill {
  border-radius: 999px;
  background: var(--iq-primary);
  color: #0b1a0b;
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 8px 12px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.tg-topbar__back {
  display: none;
  color: var(--iq-info);
  text-decoration: none;
  font-size: 12px;
  font-weight: 800;
}

.tg-topbar__back.is-visible {
  display: inline-flex;
  align-items: center;
}

.ui-screen {
  min-height: calc(100vh - 72px);
  padding-top: 72px;
}

.ui-content {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 18px;
}

/* Optional utilities aligned to UI_SIZE_CONTRACT.md (v3) */
.ui-shell-contract {
  width: var(--iq-shell-desktop-width);
  height: var(--iq-shell-desktop-height);
  max-height: var(--iq-shell-desktop-height);
  overflow: hidden;
}

.ui-content-scroll-mobile {
  overflow: hidden;
}

@media (min-width: 960px) {
  .tg-topbar {
    height: 90px;
  }

  .tg-topbar__inner {
    padding: 0 14px;
  }

  .tg-topbar__icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .tg-topbar__icon img {
    width: 30px;
    height: 30px;
  }

  .tg-topbar__pill {
    padding: 9px 16px;
    font-size: 12px;
  }

  .ui-screen {
    min-height: calc(100vh - 90px);
    padding-top: 90px;
  }
}

@media (max-height: 940px) {
  .ui-shell-contract {
    height: var(--iq-shell-desktop-height-compact);
    max-height: var(--iq-shell-desktop-height-compact);
  }
}

@media (max-width: 520px) {
  .ui-shell-contract {
    width: var(--iq-shell-mobile-width);
    height: var(--iq-shell-mobile-height);
    max-height: var(--iq-shell-mobile-height);
    border-radius: 0;
    border: none;
  }

  .ui-content-scroll-mobile {
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
    padding-bottom: var(--iq-mobile-footer-reserve);
    scroll-padding-bottom: var(--iq-mobile-scroll-padding-bottom);
  }
}

@media (min-width: 960px) {
  /* Zone Coach keeps inline shell width; force desktop expansion without touching app-local inline CSS. */
  body.zc-rebrand .zoneAppShell {
    width: min(900px, calc(100% - 24px)) !important;
  }
}