/* The shell: organisation tree pane, main menu, top bar and the scrolling content (SH-1..SH-9). */

.app {
  display: flex;
  height: 100vh;
  min-height: 680px;
  overflow: hidden;
  background: var(--page);
}

/* ------------------------------------------------------------------ tree pane */

.tree-pane {
  width: 236px;
  flex: none;
  height: 100%;
  overflow: auto;
  padding: 22px 12px;
  background: var(--tree);
  border-right: 1px solid var(--tree-border);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tree-pane__head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px 4px 10px;
}

.tree-pane__head .eyebrow {
  flex: 1;
  font-size: 11px;
}

.tree-pane__hint {
  font-size: 11.5px;
  color: var(--muted);
  padding: 0 10px 10px;
}

.tree-item {
  display: flex;
  align-items: center;
  gap: 2px;
  padding-right: 8px;
  border-radius: calc(10px * var(--r));
  color: var(--ink);
  transition: background .12s;
}

.tree-item:hover {
  background: var(--hover-tree);
}

.tree-item--selected,
.tree-item--selected:hover {
  background: var(--selected);
  color: var(--selected-ink);
}

.tree-item__chevron {
  width: 18px;
  height: 22px;
  flex: none;
  display: grid;
  place-items: center;
  padding: 0;
  border: none;
  border-radius: 5px;
  background: transparent;
  font-size: 10px;
  color: var(--muted);
}

button.tree-item__chevron:hover {
  color: var(--ink);
  background: var(--tint);
}

.tree-row {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 0;
  border: none;
  background: transparent;
  color: inherit;
  text-align: left;
  font-size: 13.5px;
  font-weight: var(--w-medium);
}

.tree-item--shallow .tree-row,
.tree-item--selected .tree-row {
  font-weight: var(--w-semibold);
}

.tree-row__name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-row__count {
  font-size: 11px;
  color: var(--muted);
}

.tree-item--selected .tree-row__count {
  color: inherit;
}

.tree-rail {
  width: 48px;
  flex: none;
  height: 100%;
  padding: 20px 0;
  background: var(--tree);
  border: none;
  border-right: 1px solid var(--tree-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  transition: background .15s;
}

.tree-rail:hover {
  background: oklch(var(--l935) calc(.02 * var(--c)) var(--hw));
}

.tree-rail__button {
  width: 30px;
  height: 30px;
  border-radius: calc(9px * var(--r));
  display: grid;
  place-items: center;
  font-size: 14px;
  color: var(--muted);
  background: var(--surface);
  box-shadow: 0 0 0 1px var(--ring-strong);
}

.tree-rail__name {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 12.5px;
  font-weight: var(--w-semibold);
  white-space: nowrap;
  color: var(--selected-ink);
}

/* ------------------------------------------------------------------ main menu */

.menu {
  width: 228px;
  flex: none;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 20px 14px;
  background: var(--menu);
  border-right: 1px solid var(--menu-border);
}

.menu__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 2px 0 2px 8px;
}

.logo-mark {
  width: 26px;
  height: 26px;
  border-radius: calc(8px * var(--r));
  background: var(--accent);
  transform: rotate(45deg);
  flex: none;
}

.menu__wordmark {
  flex: 1;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: var(--w-heavy);
  letter-spacing: -.03em;
}

.icon-button {
  width: 28px;
  height: 28px;
  flex: none;
  display: grid;
  place-items: center;
  border: none;
  border-radius: calc(9px * var(--r));
  background: transparent;
  font-size: 14px;
  color: var(--muted);
}

.icon-button:hover {
  background: var(--hover-tree);
  color: var(--ink);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border: none;
  border-radius: var(--radius-row);
  background: transparent;
  text-align: left;
  font-size: 14px;
  font-weight: var(--w-medium);
  text-decoration: none;
  color: var(--ink);
  transition: background .15s;
}

.nav__item:hover {
  background: var(--hover-menu);
  color: var(--ink);
}

.nav__item[aria-current="page"] {
  background: var(--surface);
  font-weight: var(--w-semibold);
  box-shadow: 0 1px 2px oklch(.3 .03 285 / .08), 0 0 0 1px var(--ring-strong);
}

.nav-icon {
  width: 18px;
  height: 18px;
  flex: none;
  background: oklch(var(--l600) calc(.11 * var(--c)) var(--hue));
  -webkit-mask: var(--icon) center / contain no-repeat;
  mask: var(--icon) center / contain no-repeat;
}

.nav-icon--projects {
  --icon: url("../img/nav-projects.svg");
}

.nav-icon--plans {
  --icon: url("../img/nav-plans.svg");
}

.nav-icon--people {
  --icon: url("../img/nav-people.svg");
}

.nav-icon--timesheet {
  --icon: url("../img/nav-timesheet.svg");
}

.nav__item[aria-current="page"] .nav-icon {
  background: oklch(var(--l550) calc(.15 * var(--c)) var(--hue));
}

.menu__spacer {
  flex: 1;
}

.user-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 6px 8px;
  border: none;
  border-radius: var(--radius-row);
  background: transparent;
  text-align: left;
  transition: background .15s;
}

.user-row:hover {
  background: var(--hover-menu);
}

.user-row__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.user-row__name {
  font-size: 13px;
  font-weight: var(--w-semibold);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-row__role {
  font-size: 11.5px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.menu-rail {
  width: 64px;
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  background: var(--menu);
  border-right: 1px solid var(--menu-border);
}

.menu-rail__logo {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: calc(11px * var(--r));
  background: transparent;
  display: grid;
  place-items: center;
}

.menu-rail__logo:hover,
.menu-rail__nav:hover {
  background: var(--hover-menu);
}

.menu-rail__logo .logo-mark {
  width: 22px;
  height: 22px;
  border-radius: calc(7px * var(--r));
}

.menu-rail__nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.menu-rail .nav__item {
  width: 40px;
  height: 40px;
  padding: 0;
  justify-content: center;
}

.menu-rail .nav-icon {
  width: 20px;
  height: 20px;
}

/* ------------------------------------------------------------------ main area */

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 28px;
  border-bottom: 1px solid var(--topbar-border);
}

.search {
  flex: 1;
  max-width: 440px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-row);
  background: var(--surface);
  box-shadow: 0 0 0 1px var(--ring);
}

.search:focus-within {
  box-shadow: 0 0 0 2px var(--focus);
}

.search__glass {
  width: 11px;
  height: 11px;
  flex: none;
  border-radius: 50%;
  border: 2px solid var(--muted);
}

.search input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
}

.search__chip {
  font-size: 11px;
  color: var(--muted);
  padding: 2px 6px;
  border-radius: calc(6px * var(--r));
  background: var(--tint);
}

.topbar__spacer {
  flex: 1;
}

.topbar__date {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.content {
  flex: 1;
  min-height: 0;
  overflow: auto;
}

/* ------------------------------------------------------------------ narrow screens (SH-9) */

@media (max-width: 719px) {
  /* The rails stay in the flow; an opened pane lies over the page with a backdrop behind it. */
  .tree-pane,
  .menu {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 40;
    box-shadow: var(--shadow-menu);
  }

  .topbar {
    padding: 12px 16px;
  }
}

.pane-backdrop {
  position: fixed;
  inset: 0;
  z-index: 39;
  background: oklch(.27 .03 285 / .28);
}