/* ============================================================
   LAYOUT — app shell, rail, canvas, portal frame, sidebar.
   Composes components; doesn't define new visual primitives.
   ============================================================ */

/* ---------- App shell ---------- */
.app {
  display: grid;
  grid-template-columns: 240px 1fr;
  height: 100vh;
  overflow: hidden;
}
@media (max-width: 1100px) {
  .app { grid-template-columns: 200px 1fr; }
}

/* ---------- Screen-picker rail (left) ---------- */
aside.rail {
  background: #ffffff;
  border-right: 0.5px solid var(--g-90);
  overflow-y: auto;
  padding: var(--sp-4) 0;
}
aside.rail .brand {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0 var(--sp-4) 14px;
  border-bottom: 0.5px solid var(--g-90);
}
aside.rail .brand svg { flex-shrink: 0; }
aside.rail .brand-text { font-size: 13px; font-weight: var(--fw-medium); }
aside.rail .brand-sub { font-size: 11px; color: var(--g-50); }
aside.rail .group { padding: var(--sp-3) 0 var(--sp-1); }
aside.rail .group-label {
  font-size: 10px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--g-70);
  padding: 0 var(--sp-4) 6px;
}
aside.rail .nav-link {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 6px var(--sp-4);
  font-size: var(--fs-meta);
  color: var(--g-30);
  cursor: pointer;
  border-left: 2px solid transparent;
}
aside.rail .nav-link:hover { background: var(--g-98); }
aside.rail .nav-link.active {
  background: var(--theme-95);
  color: var(--theme-20);
  border-left-color: var(--theme-50);
  font-weight: var(--fw-medium);
}
aside.rail .nav-link i { font-size: 14px; color: var(--g-50); flex-shrink: 0; }
aside.rail .nav-link.active i { color: var(--theme-50); }

aside.rail .flow-link {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  font-size: 11px;
  color: var(--g-30);
  cursor: pointer;
}
aside.rail .flow-link:hover { background: var(--g-98); }
aside.rail .flow-link .flow-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--theme-95);
  color: var(--theme-20);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
aside.rail .flow-link .flow-icon i { font-size: 12px; }
aside.rail .flow-link .flow-text { line-height: 1.3; }
aside.rail .flow-link .flow-name { color: var(--g-10); font-weight: var(--fw-medium); }
aside.rail .flow-link .flow-steps { font-size: 10px; color: var(--g-70); }

aside.rail .footer-note {
  padding: var(--sp-4);
  border-top: 0.5px solid var(--g-90);
  margin-top: var(--sp-3);
  font-size: 11px;
  color: var(--g-50);
  line-height: 1.5;
}
aside.rail .footer-note code {
  background: var(--g-95);
  padding: 1px 4px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
}

/* ---------- Canvas (main scroll area) ---------- */
main.canvas { overflow-y: auto; padding: var(--sp-6) 28px 60px; }
.canvas-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--sp-4);
  flex-wrap: wrap;
}
.canvas-meta .meta-label {
  font-size: 10px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--g-50);
}
.canvas-meta h1 { font-size: var(--fs-h4); font-weight: var(--fw-medium); color: var(--g-10); margin: 0; }
.canvas-meta .adr-tag {
  padding: 2px 7px;
  background: var(--g-95);
  color: var(--g-30);
  border-radius: var(--r-sm);
  font-size: 11px;
  font-weight: var(--fw-medium);
  cursor: pointer;
}
.canvas-meta .adr-tag:hover { background: var(--g-90); }

.canvas-tip {
  padding: 10px 14px;
  background: var(--yellow-98);
  border: 0.5px solid var(--yellow-95);
  border-left: 3px solid var(--yellow-50);
  border-radius: var(--r-md);
  margin-bottom: 18px;
  font-size: var(--fs-meta);
  color: var(--g-30);
  display: flex;
  gap: var(--sp-2);
  align-items: flex-start;
}
.canvas-tip i { color: var(--yellow-50); flex-shrink: 0; font-size: 14px; margin-top: 1px; }
.canvas-tip strong { font-weight: var(--fw-medium); }

/* ---------- Screen base (active-only display) ---------- */
.screen { display: none; }
.screen.active { display: block; }

/* ---------- Portal frame (chrome + body) ---------- */
.portal-frame {
  background: #ffffff;
  border: 0.5px solid var(--g-90);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}

.portal-frame .topbar {
  background: #ffffff;
  border-bottom: 0.5px solid var(--g-90);
  padding: var(--sp-3) 14px;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  position: relative;
}
.portal-frame .topbar .spacer { flex: 1; }

/* Use direct-child selector — the class name "body" is also used inside
   inbox-card components (for title + meta). Without ">", that inner div
   was inheriting the 168px+1fr grid and a 540px min-height, making cards
   appear as huge empty rectangles. */
.portal-frame > .body { display: grid; grid-template-columns: 168px 1fr; min-height: 540px; }

/* ---------- Sidebar (within portal-frame) ---------- */
.portal-frame nav.sidebar {
  background: var(--g-98);
  border-right: 0.5px solid var(--g-90);
  padding: 14px 0;
  display: flex;
  flex-direction: column;
}
/* Settings sits in the sidebar footer — pushed to bottom via flex spacing.
   Demoted weight per behavioral-design pass: low-frequency item; doesn't fight Inbox for attention. */
.sidebar .side-footer { margin-top: auto; padding-bottom: 4px; }
.sidebar .side-footer .side-divider { margin-top: 0; }
.sidebar .sec-label {
  font-size: 10px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--g-70);
  margin: 0 14px var(--sp-2);
}
.sidebar .side-link {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 6px 14px;
  font-size: var(--fs-meta);
  color: var(--g-10);
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background var(--motion-fast) var(--easing);
}
.sidebar .side-link:not(.active):hover { background: var(--g-95); }
.sidebar .side-link i { font-size: 14px; color: var(--g-50); flex-shrink: 0; }
.sidebar .side-link.active {
  background: var(--theme-95);
  color: var(--theme-20);
  border-left-color: var(--theme-50);
  font-weight: var(--fw-medium);
}
.sidebar .side-link.active i { color: var(--theme-50); }
.sidebar .side-link.neutral.active {
  background: var(--g-95);
  color: var(--g-10);
  border-left-color: var(--g-30);
}
.sidebar .side-link.neutral.active i { color: var(--g-30); }
.sidebar .side-link .count-badge {
  margin-left: auto;
  background: var(--theme-50);
  color: #ffffff;
  font-size: 10px;
  padding: 1px 5px;
  border-radius: var(--sp-2);
  font-weight: var(--fw-medium);
}
.sidebar .side-link.neutral.active .count-badge { background: var(--g-30); }
.sidebar .side-divider { height: 0.5px; background: var(--g-90); margin: 10px 14px; }

.sidebar .dex-mini {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-1) 14px;
  font-size: 11px;
  color: var(--g-50);
  cursor: pointer;
  transition: background var(--motion-fast) var(--easing);
}
.sidebar .dex-mini:hover { background: var(--g-95); }
.sidebar .dex-mini .dex-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.sidebar .new-dot { margin-left: auto; width: 5px; height: 5px; border-radius: 50%; background: var(--red-50); }
.sidebar .show-hidden {
  font-size: 11px;
  color: var(--g-70);
  margin: var(--sp-4) 14px 0;
  cursor: pointer;
}

/* ---------- Main content within portal-frame ---------- */
.portal-frame main.content { padding: 18px 22px 28px; min-width: 0; }
.content h1 { font-size: var(--fs-h4); font-weight: var(--fw-medium); color: var(--g-10); }
.content .lede { font-size: var(--fs-meta); color: var(--g-50); margin: 0 0 14px; }

/* ---------- Filter chip row ---------- */
.filter-chips { display: flex; gap: 6px; margin-bottom: var(--sp-4); flex-wrap: wrap; }

/* ---------- Group block (Mine / My team's) ---------- */
details.group-block { margin-bottom: 18px; }
details.group-block summary {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  cursor: pointer;
  list-style: none;
  margin-bottom: 10px;
}
details.group-block summary::-webkit-details-marker { display: none; }
details.group-block summary i.chev { font-size: 14px; color: var(--g-50); transition: transform var(--motion-fast) var(--easing); }
details.group-block:not([open]) summary i.chev { transform: rotate(-90deg); }
details.group-block summary .ttl { font-size: 13px; font-weight: var(--fw-medium); color: var(--g-10); }
details.group-block summary .sub { font-size: 11px; color: var(--g-50); }

/* ---------- Section label (within screens) ---------- */
.section-label {
  font-size: 11px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--g-50);
  margin: 0 0 var(--sp-3);
}