.wrap--app {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 16px 100px;
}

/* Brand banner (Ham Sandwich) */
.app-brand-banner {
  margin: 0 0 14px;
  padding: 10px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(12, 22, 38, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.app-brand-banner__logo {
  display: block;
  width: 100%;
  max-height: min(88px, 22vw);
  height: auto;
  object-fit: contain;
  object-position: center;
}

@media (min-width: 900px) {
  .wrap--app {
    max-width: 880px;
    padding: 24px 24px 48px;
  }
}

/* Header */
.app-header {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px 16px;
  align-items: center;
  padding: 12px 14px;
  margin-bottom: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(12, 22, 38, 0.92);
  backdrop-filter: blur(8px);
}

.app-header__call input {
  width: 100%;
  max-width: 200px;
  font-weight: 700;
}

.app-header__clocks {
  text-align: right;
}

.app-header__tools {
  text-align: right;
  font-size: 0.85rem;
}

.app-header__tool-row {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 6px;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .app-header {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .app-header__clocks {
    text-align: left;
  }
  .app-header__tools {
    text-align: left;
  }
  .app-header__tool-row {
    justify-content: flex-start;
  }
  .app-header__call input {
    max-width: none;
  }
}

.clock-block .utc {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 800;
  color: var(--accent);
  font-size: 0.95rem;
}

.clock-block .local {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  color: var(--muted);
}

.grid-square-badge {
  color: var(--accent2);
}

/* Main column */
.app-main {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* Reference tabs */
.ref-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.tab-btn {
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel3);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.82rem;
  transition: 0.15s ease;
}

.tab-btn:hover {
  border-color: var(--accent);
}

.tab-btn.active {
  outline: 2px solid rgba(109, 192, 255, 0.35);
  background: linear-gradient(180deg, #1a3355, #132640);
}

.tab-panel {
  display: none !important;
  animation: fadeIn 0.2s ease;
}

.tab-panel.active {
  display: block !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer */
.app-footer {
  margin-top: 28px;
  padding: 16px 0 8px;
  font-size: 0.82rem;
  border-top: 1px solid var(--border);
}

.app-footer__links {
  margin: 8px 0 0;
}

.app-footer a {
  color: var(--accent);
}

/* Sticky mobile bar */
.sticky-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-sticky);
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(8, 14, 24, 0.92);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

@media (min-width: 769px) {
  .sticky-bar {
    display: none !important;
  }
}

/* Setup grids */
.setup-grid {
  display: grid;
  gap: 12px;
}

.setup-grid--simple {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 560px) {
  .setup-grid--simple {
    grid-template-columns: 1fr;
  }
}

.setup-grid--advanced .two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 560px) {
  .setup-grid--advanced .two {
    grid-template-columns: 1fr;
  }
}

.setup-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.nav-cards {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

.ref-cards {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.modal--net {
  width: min(520px, 100%);
}