/* ============================================================
   CESIVI Modern UI — Top Bar
   All selectors scoped under body[data-modern-ui="true"]
   ============================================================ */

body[data-modern-ui="true"] .topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0 12px;
  gap: 12px;
  position: relative;
  z-index: 20;
  height: var(--topbar-h);
}

/* Brand */
body[data-modern-ui="true"] .topbar .brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  letter-spacing: -0.01em;
  padding-right: 12px;
  border-right: 1px solid var(--border);
  height: 28px;
  text-decoration: none;
  color: var(--fg);
  flex-shrink: 0;
}

body[data-modern-ui="true"] .topbar .brand:hover {
  text-decoration: none;
}

body[data-modern-ui="true"] .topbar .brand .logo {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: var(--accent);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 700;
  font-size: 12px;
  box-shadow: inset 0 -3px 0 oklch(0.38 var(--accent-c) var(--accent-h));
  flex-shrink: 0;
}

body[data-modern-ui="true"] .topbar .brand .brand-name {
  font-size: 14px;
  color: var(--accent);
}

/* Tenant switcher */
body[data-modern-ui="true"] .topbar .tenant-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  color: var(--fg-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.12s;
  background: transparent;
  border: none;
  text-decoration: none;
}

body[data-modern-ui="true"] .topbar .tenant-switcher:hover {
  background: var(--bg-hover);
  color: var(--accent);
  outline: 1px solid var(--accent-border);
  outline-offset: -1px;
}

body[data-modern-ui="true"] .topbar .tenant-switcher .tenant-name {
  color: var(--fg);
  font-weight: 500;
  font-size: var(--font-size);
}

body[data-modern-ui="true"] .topbar .tenant-switcher .chev {
  opacity: 0.5;
  font-size: 10px;
}

/* Search */
body[data-modern-ui="true"] .topbar .search {
  flex: 1;
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}

body[data-modern-ui="true"] .topbar .search input {
  width: 100%;
  height: 30px;
  border: 1px solid var(--border);
  background: var(--bg-sunken);
  border-radius: var(--radius);
  padding: 0 32px 0 30px;
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color 0.12s, background 0.12s;
  color: var(--fg);
}

body[data-modern-ui="true"] .topbar .search input::placeholder {
  color: var(--fg-muted);
}

body[data-modern-ui="true"] .topbar .search input:focus {
  border-color: var(--accent);
  background: var(--bg-panel);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--accent) 12%, transparent);
}

body[data-modern-ui="true"] .topbar .search .ico {
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--fg-subtle);
  font-size: 14px;
  pointer-events: none;
}

body[data-modern-ui="true"] .topbar .search .kbd {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 4px;
  pointer-events: none;
}

/* Actions area */
body[data-modern-ui="true"] .topbar .actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  flex-shrink: 0;
}

body[data-modern-ui="true"] .topbar .iconbtn {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--fg-muted);
  font-size: 16px;
  transition: background 0.12s, color 0.12s;
}

body[data-modern-ui="true"] .topbar .iconbtn:hover {
  background: var(--bg-hover);
  color: var(--fg);
}

/* Identity chip */
body[data-modern-ui="true"] .topbar .identity {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px 3px 3px;
  border-radius: var(--radius);
  cursor: default;
  transition: background 0.12s;
}

body[data-modern-ui="true"] .topbar .identity:hover {
  background: var(--bg-hover);
}

body[data-modern-ui="true"] .topbar .avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), oklch(0.62 0.1 190));
  color: white;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}

body[data-modern-ui="true"] .topbar .identity-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--fg);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Classic pill — switch back to classic UI */
body[data-modern-ui="true"] .topbar .classic-pill {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  font-size: 11px;
  color: var(--fg-muted);
  background: var(--bg-panel);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.12s, color 0.12s;
  margin-left: 4px;
}

body[data-modern-ui="true"] .topbar .classic-pill:hover {
  background: var(--bg-hover);
  color: var(--fg);
  text-decoration: none;
}

/* ---- Top-bar popovers (Apps / Help / Identity) ---- */

body[data-modern-ui="true"] .modern-topbar-popover {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 4px;
  z-index: 200;
  display: none;
  min-width: 200px;
}

body[data-modern-ui="true"] .modern-topbar-popover.open {
  display: block;
}

/* Apps popover — 2-column grid of tiles */
body[data-modern-ui="true"] .modern-apps-popover {
  min-width: 240px;
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 8px;
}
body[data-modern-ui="true"] .modern-apps-popover.open {
  display: grid;
}

body[data-modern-ui="true"] .topbar-app-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--fg);
  font-size: 12px;
  text-align: center;
  transition: background 0.1s;
  cursor: pointer;
}
body[data-modern-ui="true"] .topbar-app-tile i {
  font-size: 20px;
  color: var(--accent);
}
body[data-modern-ui="true"] .topbar-app-tile:hover {
  background: var(--bg-hover);
  text-decoration: none;
  color: var(--fg);
}
body[data-modern-ui="true"] .topbar-app-tile:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* Help popover — single-column menu */
body[data-modern-ui="true"] .modern-help-popover {
  min-width: 220px;
}

/* Identity popover */
body[data-modern-ui="true"] .modern-identity-popover {
  min-width: 240px;
}

/* Shared menu item style */
body[data-modern-ui="true"] .topbar-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--fg);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  transition: background 0.1s;
  box-sizing: border-box;
}
body[data-modern-ui="true"] .topbar-menu-item i {
  width: 16px;
  text-align: center;
  color: var(--fg-muted);
  flex-shrink: 0;
  font-size: 14px;
}
body[data-modern-ui="true"] .topbar-menu-item:hover {
  background: var(--bg-hover);
  text-decoration: none;
  color: var(--fg);
}
body[data-modern-ui="true"] .topbar-menu-item:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
body[data-modern-ui="true"] .topbar-menu-item-danger {
  color: oklch(0.55 0.16 25);
}
body[data-modern-ui="true"] .topbar-menu-item-danger i {
  color: oklch(0.55 0.16 25);
}

body[data-modern-ui="true"] .topbar-menu-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 6px;
}

/* Identity button (replaces plain div) */
body[data-modern-ui="true"] .topbar .identity-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 3px 8px 3px 3px;
}

/* Identity popover header */
body[data-modern-ui="true"] .identity-popover-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px 8px;
}
body[data-modern-ui="true"] .identity-popover-header .avatar-lg {
  width: 38px;
  height: 38px;
  font-size: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), oklch(0.62 0.1 190));
  color: white;
  display: grid;
  place-items: center;
  font-weight: 600;
  flex-shrink: 0;
}
body[data-modern-ui="true"] .identity-popover-name {
  font-weight: 600;
  font-size: 13px;
  color: var(--fg);
  max-width: 170px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
body[data-modern-ui="true"] .identity-popover-email {
  font-size: 11.5px;
  color: var(--fg-muted);
  max-width: 170px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* PLAN-1364 Phase 2: hamburger button — hidden at desktop, shown at ≤--bp-tablet */
body[data-modern-ui="true"] .topbar-hamburger {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  place-items: center;
  color: var(--fg);
  font-size: 22px;
  flex-shrink: 0;
  transition: background 0.12s, color 0.12s;
}

body[data-modern-ui="true"] .topbar-hamburger:hover {
  background: var(--bg-hover);
}

@media (max-width: 768px) { /* token: --bp-tablet */
  body[data-modern-ui="true"] .topbar-hamburger { display: grid; }

  /* Hide text labels at tablet to prevent topbar overflow (search stays visible).
     Complements the ≤480px rule which also hides search and forces flex-wrap. */
  body[data-modern-ui="true"] .topbar .brand .brand-name,
  body[data-modern-ui="true"] .topbar .tenant-switcher .tenant-name,
  body[data-modern-ui="true"] .topbar .tenant-switcher .chev,
  body[data-modern-ui="true"] .topbar .identity-name,
  body[data-modern-ui="true"] .topbar .classic-pill,
  body[data-modern-ui="true"] .topbar #sp-mytasks-link,
  body[data-modern-ui="true"] .topbar #topBarNewsfeedLink,
  body[data-modern-ui="true"] .topbar #topBarFollowedContentLink,
  body[data-modern-ui="true"] .topbar .ribbon-mode-btn [data-ribbon-label],
  body[data-modern-ui="true"] .topbar .ribbon-mode-btn .chev {
    display: none;
  }
}

/* PLAN-1244: mobile responsive (≤480px) — fix horizontal overflow on .topbar.
   The classic .ms-suitebar variant lives in cesivi-classic.css.
   PLAN-1364 Phase 1: 480px = token --bp-phone */
@media (max-width: 480px) { /* token: --bp-phone */
  body[data-modern-ui="true"] .topbar {
    /* Allow the topbar to use a 2-row mobile layout if needed instead of overflowing. */
    flex-wrap: wrap;
    row-gap: 4px;
    padding-left: 6px;
    padding-right: 6px;
    gap: 4px;
  }

  /* Hide non-essential chrome on small screens to prevent horizontal overflow. */
  body[data-modern-ui="true"] .topbar .search,
  body[data-modern-ui="true"] .topbar .brand .brand-name,
  body[data-modern-ui="true"] .topbar .tenant-switcher .tenant-name,
  body[data-modern-ui="true"] .topbar .tenant-switcher .chev,
  body[data-modern-ui="true"] .topbar .identity-name,
  body[data-modern-ui="true"] .topbar .classic-pill,
  body[data-modern-ui="true"] .topbar #sp-mytasks-link,
  body[data-modern-ui="true"] .topbar #topBarNewsfeedLink,
  body[data-modern-ui="true"] .topbar #topBarFollowedContentLink,
  body[data-modern-ui="true"] .topbar .ribbon-mode-btn [data-ribbon-label],
  body[data-modern-ui="true"] .topbar .ribbon-mode-btn .chev {
    display: none;
  }

  /* Keep the identity trigger, apps, lang, and help buttons compact but visible. */
  body[data-modern-ui="true"] .topbar .actions {
    gap: 2px;
  }
  body[data-modern-ui="true"] .topbar .iconbtn,
  body[data-modern-ui="true"] .topbar .identity,
  body[data-modern-ui="true"] .topbar .identity-btn {
    padding-left: 6px;
    padding-right: 6px;
  }
}

/* BUG-1486: tenant-switcher empty state + badge */
body[data-modern-ui="true"] .topbar-menu-empty {
  padding: 12px 16px;
  font-size: var(--font-size-sm);
  color: var(--fg-muted);
  font-style: italic;
}

body[data-modern-ui="true"] .topbar-menu-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  font-size: 10px;
  font-weight: 600;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  vertical-align: middle;
}