/* CollabForge AI — unified application shell (spec §12)
   Slim deep-navy sidebar · warm off-white workspace · shared context header.
   The landing "evolved into a workspace" — same identity, not a new one. */
.shell { display: grid; grid-template-columns: var(--shell-sidebar-w) 1fr; min-height: 100vh; }

/* Sidebar */
.sidebar { background: var(--color-sidebar); color: var(--color-text-invert-dim); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; border-right: 1px solid var(--color-border-dark); }
.sidebar__brand { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-5) var(--space-5) var(--space-4); }
.sidebar__brand .logo-mark { width: 30px; height: 30px; color: var(--color-accent); flex: none; }
.sidebar__brand-name { font-family: var(--font-display); font-size: var(--text-lg); color: var(--color-text-invert); font-weight: 500; letter-spacing: -0.01em; }

.ws-switch { margin: 0 var(--space-4) var(--space-4); background: rgba(255,255,255,0.05); border: 1px solid var(--color-border-dark); border-radius: var(--radius-md); padding: 3px; display: flex; gap: 2px; }
.ws-switch button { flex: 1; padding: 8px; font-size: var(--text-xs); font-weight: 600; color: var(--color-text-invert-dim); border-radius: var(--radius-sm); transition: var(--transition); }
.ws-switch button.is-active { background: var(--color-accent); color: #fff; }

.sidebar__nav { flex: 1; overflow-y: auto; padding: 0 var(--space-3) var(--space-5); }
.nav-group { margin-bottom: var(--space-5); }
.nav-group__title { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(157,176,198,0.55); padding: 0 var(--space-3); margin-bottom: var(--space-2); }
.nav-link { display: flex; align-items: center; gap: var(--space-3); padding: 9px var(--space-3); border-radius: var(--radius-sm); font-size: var(--text-sm); color: var(--color-text-invert-dim); transition: var(--transition); width: 100%; text-align: left; }
.nav-link:hover { background: rgba(255,255,255,0.06); color: var(--color-text-invert); }
.nav-link.is-active { background: rgba(52,102,214,0.18); color: var(--color-text-invert); box-shadow: inset 2px 0 0 var(--color-accent); }
.nav-link__icon { width: 16px; height: 16px; flex: none; opacity: 0.8; }
.nav-link .badge-soon { margin-left: auto; font-size: 0.6rem; color: var(--color-text-muted); }

.sidebar__foot { padding: var(--space-4) var(--space-5); border-top: 1px solid var(--color-border-dark); font-size: var(--text-xs); }

/* Workspace */
.workspace { display: flex; flex-direction: column; min-width: 0; }
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-4) var(--space-7); background: rgba(247,245,240,0.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); }
.topbar__title { display: flex; flex-direction: column; gap: 2px; }
.topbar__title h1 { font-size: var(--text-xl); }
.topbar__crumb { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-text-muted); }
.topbar__actions { display: flex; align-items: center; gap: var(--space-3); }

.view { padding: var(--space-7); max-width: var(--content-max); width: 100%; margin: 0 auto; }
.view__section { margin-bottom: var(--space-8); }

/* Context banner (selected creator / campaign persistence) */
.context-strip { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; padding: var(--space-3) var(--space-4); background: var(--color-accent-soft); border: 1px solid var(--color-accent-line); border-radius: var(--radius-md); margin-bottom: var(--space-6); font-size: var(--text-sm); }
.context-strip strong { color: var(--color-accent-strong); }

/* Mobile sidebar toggle */
.sidebar__scrim { display: none; }
.mobile-menu-btn { display: none; }