/* ============================================================
   shell.css — header + sidebar + main (ports Layout.tsx)
   ============================================================ */
.shell {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--c-surface);
}

/* ── Header ─────────────────────────────────────────────── */
.shell__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  flex-shrink: 0;
  padding: 0 var(--sp-7);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  box-shadow: var(--sh-header);
}

.shell__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.shell__logo {
  height: 32px;
  object-fit: contain;
}
.shell__logo-text {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-text);
  white-space: nowrap;
}

.shell__sep {
  width: 1px;
  height: 20px;
  background: var(--c-divider);
}

/* ── Sidebar ────────────────────────────────────────────── */
.shell__body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.shell__sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  overflow-y: auto;
}

.shell__nav {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  padding: var(--sp-4);
  flex: 1;
}

.shell__group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.shell__group-title {
  padding: 0 var(--sp-2);
  font-size: var(--fs-12);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--c-text-muted);
}

.shell__group-items {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.shell__link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 9px var(--sp-4);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background-color 0.15s;
}
.shell__link img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  flex-shrink: 0;
}
.shell__link span {
  font-size: var(--fs-15);
  font-weight: var(--fw-medium);
  white-space: nowrap;
  color: var(--c-text-2);
}
.shell__link:hover {
  background: var(--c-surface-hover-2);
}
.shell__link.is-active {
  background: var(--c-sidebar-active-bg);
}
.shell__link.is-active span {
  color: var(--c-sidebar-active-fg);
}

.shell__logout-wrap {
  padding: var(--sp-4);
  border-top: 1px solid var(--c-border);
}
.shell__logout {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  width: 100%;
  padding: 9px var(--sp-4);
  border-radius: var(--r-md);
  transition: background-color 0.15s;
}
.shell__logout img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  flex-shrink: 0;
}
.shell__logout span {
  font-size: var(--fs-15);
  font-weight: var(--fw-medium);
  color: var(--c-text-muted);
  white-space: nowrap;
}
.shell__logout:hover {
  background: var(--c-surface-hover-2);
}

/* ── Main content ───────────────────────────────────────── */
.shell__main {
  flex: 1;
  overflow-y: auto;
  background: var(--c-bg);
  outline: none;
}