/* ParkingUnit Admin V3 — shell layout.
   Grid: sidebar (240px, collapses to 64px) + main column with topbar + content.
   All selectors rooted at .pu-v3. */

/* ---------- Body reset while .pu-v3 is active ---------- */
body.pu-v3-body {
  display: block;
  margin: 0; padding: 0; background: var(--bg); min-height: 100vh;
}

/* ---------- Root grid ---------- */
.pu-v3 {
  display: grid;
  grid-template-columns: 240px 1fr;
  grid-template-rows: 56px 1fr;
  grid-template-areas:
    "sidebar topbar"
    "sidebar main";
  min-height: 100vh;
}
.pu-v3.is-sidebar-collapsed {
  grid-template-columns: 64px 1fr;
}

/* ---------- Sidebar ---------- */
.pu-sidebar-v3 {
  grid-area: sidebar;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.pu-sidebar-v3__brand {
  height: 56px; padding: 0 16px;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border);
  color: var(--ink); font-weight: 600; font-size: var(--fs-md);
  letter-spacing: -0.015em; text-decoration: none;
  flex-shrink: 0;
}
.pu-sidebar-v3__brand-icon {
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--ink); color: var(--bg);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 14px;
}
.pu-sidebar-v3__nav {
  flex: 1 1 auto; min-height: 0; overflow-y: auto;
  padding: 8px 8px 16px;
}
.pu-sidebar-v3__footer {
  padding: 10px 12px; border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
  color: var(--ink-2); font-size: var(--fs-xs);
}
.pu-sidebar-v3__avatar {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--bg-2); display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink-2); font-weight: 600; font-size: 11px; flex-shrink: 0;
}
.pu-sidebar-v3__user-text { min-width: 0; flex: 1; }
.pu-sidebar-v3__user-name { color: var(--ink); font-size: var(--fs-sm); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pu-sidebar-v3__user-role { font-size: 10px; color: var(--ink-4); text-transform: uppercase; letter-spacing: 0.04em; }

/* ---------- Nav items + sections ---------- */
.pu-v3 .nav-section {
  font-size: 10px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink-4);
  padding: 14px 10px 6px;
}
.pu-v3 .nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 10px; border-radius: var(--r-sm);
  color: var(--ink-2); font-size: var(--fs-sm); font-weight: 450;
  cursor: pointer; transition: background .1s, color .1s;
  text-decoration: none;
}
.pu-v3 .nav-item:hover { background: var(--bg-2); color: var(--ink); }
.pu-v3 .nav-item.is-active { background: var(--ink); color: var(--bg); font-weight: 500; }
.pu-v3 .nav-item__icon { width: 16px; height: 16px; opacity: .8; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; }
.pu-v3 .nav-item.is-active .nav-item__icon { opacity: 1; }
.pu-v3 .nav-item__label { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pu-v3 .nav-item__badge {
  background: var(--accent); color: #fff; border-radius: 999px;
  padding: 0 6px; height: 16px; min-width: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 600;
}
.pu-v3 .nav-item__chev {
  margin-left: auto; opacity: .6; transition: transform .12s;
}
.pu-v3 .nav-item.is-open .nav-item__chev { transform: rotate(90deg); }
.pu-v3 .nav-children {
  display: none;
  padding: 2px 0 4px 22px;
  border-left: 1px dashed var(--border);
  margin: 2px 0 4px 16px;
}
.pu-v3 .nav-item.is-open + .nav-children { display: block; }
.pu-v3 .nav-children .nav-item {
  font-size: 12px; padding: 4px 10px; color: var(--ink-3);
}
.pu-v3 .nav-children .nav-item.is-active {
  background: transparent; color: var(--ink); font-weight: 600;
}
.pu-v3 .nav-children .nav-item.is-active::before {
  content: ""; position: absolute; left: -16px; width: 3px; height: 14px;
  background: var(--accent); border-radius: 0 2px 2px 0;
}
.pu-v3 .nav-children .nav-item { position: relative; }

/* Collapsed sidebar: hide labels + sections */
.pu-v3.is-sidebar-collapsed .pu-sidebar-v3__brand-text,
.pu-v3.is-sidebar-collapsed .nav-item__label,
.pu-v3.is-sidebar-collapsed .nav-item__badge,
.pu-v3.is-sidebar-collapsed .nav-item__chev,
.pu-v3.is-sidebar-collapsed .nav-children,
.pu-v3.is-sidebar-collapsed .nav-section,
.pu-v3.is-sidebar-collapsed .pu-sidebar-v3__user-text { display: none; }
.pu-v3.is-sidebar-collapsed .nav-item { justify-content: center; padding: 6px; }
.pu-v3.is-sidebar-collapsed .pu-sidebar-v3__brand { justify-content: center; padding: 0; }
.pu-v3.is-sidebar-collapsed .pu-sidebar-v3__footer { justify-content: center; padding: 10px 6px; }

/* ---------- Topbar ---------- */
.pu-topbar-v3 {
  grid-area: topbar;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px;
  padding: 0 16px;
}
.pu-topbar-v3__burger {
  display: none; width: 32px; height: 32px;
  border: 1px solid var(--border-strong); border-radius: var(--r-sm);
  background: var(--panel); color: var(--ink-2);
  align-items: center; justify-content: center;
}
.pu-topbar-v3__breadcrumbs {
  flex: 0 0 auto; display: flex; align-items: center; gap: 6px;
  color: var(--ink-3); font-size: var(--fs-sm);
}
.pu-topbar-v3__breadcrumbs a { color: var(--ink-2); text-decoration: none; }
.pu-topbar-v3__breadcrumbs a:hover { color: var(--ink); }
.pu-topbar-v3__breadcrumbs .sep { color: var(--ink-4); }
.pu-topbar-v3__breadcrumbs .current { color: var(--ink); font-weight: 500; }
.pu-topbar-v3__search {
  flex: 1 1 auto; max-width: 420px; margin: 0 auto; position: relative;
}
.pu-topbar-v3__search-input {
  width: 100%; height: 32px; padding: 0 70px 0 32px;
  border: 1px solid var(--border-strong); border-radius: var(--r-sm);
  background: var(--bg-2); color: var(--ink);
  font-size: var(--fs-sm); transition: background .12s, border-color .12s;
}
.pu-topbar-v3__search-input:focus {
  outline: none; background: var(--panel); border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-2);
}
.pu-topbar-v3__search-icon {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  color: var(--ink-4); pointer-events: none;
}
.pu-topbar-v3__search-kbd {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
}
.pu-topbar-v3__actions { flex: 0 0 auto; display: flex; align-items: center; gap: 4px; margin-left: auto; }
.pu-topbar-v3__icon-btn {
  width: 32px; height: 32px; border: 1px solid transparent; border-radius: var(--r-sm);
  background: transparent; color: var(--ink-2);
  display: inline-flex; align-items: center; justify-content: center;
  position: relative;
}
.pu-topbar-v3__icon-btn:hover { background: var(--bg-2); color: var(--ink); }
.pu-topbar-v3__icon-btn .dot {
  position: absolute; top: 6px; right: 7px; width: 6px; height: 6px; border-radius: 999px;
  background: var(--accent);
}

/* ---------- Main column ---------- */
.pu-main-v3 {
  grid-area: main;
  min-width: 0; min-height: 0;
  overflow-y: auto;
  background: var(--bg);
}
.pu-content-v3 {
  padding: 20px 24px 48px;
}

/* ---------- Mobile (< 960px): sidebar slides in ---------- */
@media (max-width: 960px) {
  .pu-v3 {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "main";
  }
  .pu-sidebar-v3 {
    position: fixed; top: 0; left: 0; bottom: 0; width: 260px; z-index: 200;
    transform: translateX(-100%); transition: transform .18s ease;
    box-shadow: var(--shadow-lg);
  }
  .pu-v3.is-mobile-open .pu-sidebar-v3 { transform: translateX(0); }
  .pu-v3.is-mobile-open::before {
    content: ""; position: fixed; inset: 0; background: rgba(0,0,0,0.32);
    z-index: 150;
  }
  .pu-topbar-v3__burger { display: inline-flex; }
}