/* ==========================================================================
   App shell + sidebar (Roblox-Creator-portal-style) + top bar
   Only present when logged in.
   ========================================================================== */

/* Material Symbol base */
.msym {
  font-family: "Material Symbols Rounded";
  font-weight: normal;
  font-style: normal;
  font-size: var(--msym-size, 24px);
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -webkit-font-feature-settings: "liga";
  font-feature-settings: "liga";
  user-select: none;
}

/* --- Shell grid --- */
.app-shell {
  --current-sidebar-w: var(--sidebar-w);
  display: grid;
  grid-template-columns: var(--current-sidebar-w) 1fr;
  min-height: 100vh;
  transition: grid-template-columns var(--transition-slow);
}
.app-shell[data-collapsed="true"] {
  --current-sidebar-w: var(--sidebar-w-collapsed);
}

/* --- Sidebar --- */
.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  overflow: hidden;
}

.sidebar__head {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  height: var(--topbar-h);
  padding: 0 var(--sp-4);
  border-bottom: 1px solid var(--sidebar-border);
  flex-shrink: 0;
}
.sidebar__head img { width: 34px; height: 34px; flex-shrink: 0; }
.sidebar__head .brand__text { min-width: 0; }
.sidebar__head .brand__text { overflow: hidden; }
.sidebar__head .brand__text span { white-space: nowrap; }

/* User row */
.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4);
  margin: var(--sp-3) var(--sp-3) var(--sp-2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--sidebar-border);
}
.sidebar__avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
  background: linear-gradient(135deg, var(--primary), var(--primary-active));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: var(--fs-sm);
  border: 1px solid var(--border-strong);
}
.sidebar__user-meta { overflow: hidden; line-height: 1.25; }
.sidebar__user-meta strong {
  display: block;
  color: var(--text);
  font-size: var(--fs-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar__user-meta small {
  color: var(--text-muted);
  font-size: var(--fs-xs);
  text-transform: capitalize;
}

/* Nav */
.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--sp-2) var(--sp-3) var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
/* Hide the sidebar's own scrollbar: no track strip, no reserved gutter, and the
   collapsed rail stays perfectly centred (a visible bar used to shove icons 4px
   left). It still scrolls via wheel / trackpad. */
.sidebar__nav { scrollbar-width: none; }
.sidebar__nav::-webkit-scrollbar { width: 0; height: 0; display: none; }

.side-link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 10px var(--sp-3);
  border-radius: var(--radius);
  color: var(--sidebar-item);
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
  position: relative;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.side-link .msym { flex-shrink: 0; color: var(--text-muted); transition: color var(--transition-fast); }
.side-link:hover { background: var(--sidebar-item-hover); color: var(--text); }
.side-link:hover .msym { color: var(--text-secondary); }
.side-link.is-active {
  background: var(--sidebar-item-active-bg);
  color: #fff;
}
.side-link.is-active .msym { color: var(--primary-hover); }
.side-link.is-active::before {
  content: "";
  position: absolute;
  left: -2px; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 20px;
  border-radius: var(--radius-pill);
  background: var(--primary);
}
.side-link__label { transition: opacity var(--transition); }

/* Translucent group divider */
.sidebar__divider {
  height: 1px;
  margin: var(--sp-3) var(--sp-2);
  background: linear-gradient(90deg, transparent, var(--sidebar-border) 20%, var(--sidebar-border) 80%, transparent);
  flex-shrink: 0;
}

/* Footer (collapse + sign out) */
.sidebar__foot {
  padding: var(--sp-3);
  border-top: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}
.side-link--muted { color: var(--text-muted); font-weight: 500; }
.side-link--muted .msym { color: var(--text-muted); }

/* Collapsed (icon-rail) state — everything centres on one vertical axis. */
.app-shell[data-collapsed="true"] .side-link { justify-content: center; padding-inline: 0; gap: 0; }
.app-shell[data-collapsed="true"] .side-link__label,
.app-shell[data-collapsed="true"] .brand__text,
.app-shell[data-collapsed="true"] .sidebar__user-meta {
  opacity: 0;
  width: 0;
  margin: 0;
  pointer-events: none;
  overflow: hidden;
}
.app-shell[data-collapsed="true"] .sidebar__head { justify-content: center; padding-inline: 0; gap: 0; }
.app-shell[data-collapsed="true"] .sidebar__user {
  justify-content: center;
  padding-inline: 0;
  margin-inline: var(--sp-3);
  gap: 0;
}
.app-shell[data-collapsed="true"] .sidebar__divider { margin-inline: var(--sp-4); }
.app-shell[data-collapsed="true"] .collapse-label { opacity: 0; width: 0; }
/* Trailing badges (lock / soon) have no room in the rail. */
.app-shell[data-collapsed="true"] .side-link__lock,
.app-shell[data-collapsed="true"] .side-link__soon { display: none; }
/* Tooltip on hover when collapsed */
.app-shell[data-collapsed="true"] .side-link { position: relative; }
.app-shell[data-collapsed="true"] .side-link:hover::after {
  content: attr(data-tip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  padding: 4px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: var(--fs-xs);
  color: var(--text);
  white-space: nowrap;
  z-index: var(--z-overlay);
  box-shadow: var(--shadow);
}

/* --- App body (topbar + content) --- */
.app-body { display: flex; flex-direction: column; min-width: 0; }

.app-topbar {
  position: sticky;
  top: 0;
  z-index: calc(var(--z-sidebar) - 1);
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0 var(--sp-5);
  background: var(--topbar-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.app-topbar__title { font-size: var(--fs-md); font-weight: 700; color: var(--text); }
.app-topbar__spacer { flex: 1; }
.icon-btn {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: var(--radius);
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.icon-btn:hover { background: var(--surface); color: var(--text); }
.topbar-toggle { display: none; }

.app-content {
  flex: 1;
  padding: var(--sp-6) var(--sp-5) var(--sp-8);
  animation: page-in var(--transition-slow);
}
.app-content .container { padding-inline: 0; max-width: 1160px; }

/* --- Mobile: sidebar becomes an off-canvas drawer --- */
.sidebar-scrim {
  position: fixed;
  inset: 0;
  background: var(--scrim);
  z-index: calc(var(--z-sidebar) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

/* App content breathing room shrinks on small screens. */
@media (max-width: 640px) {
  .app-content { padding: var(--sp-5) var(--sp-4) var(--sp-7); }
  .app-topbar { padding: 0 var(--sp-4); }
  .app-page__head h1 { font-size: var(--fs-xl); }
  .app-page__head { margin-bottom: var(--sp-5); }
}

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--sidebar-w);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    box-shadow: var(--shadow-lg);
  }
  .app-shell[data-mobile-open="true"] .sidebar { transform: translateX(0); }
  .app-shell[data-mobile-open="true"] .sidebar-scrim { opacity: 1; pointer-events: auto; }
  /* On mobile the collapse toggle is meaningless; force full labels. */
  .app-shell[data-collapsed="true"] .side-link { justify-content: flex-start; padding-inline: var(--sp-3); }
  .app-shell[data-collapsed="true"] .side-link__label,
  .app-shell[data-collapsed="true"] .brand__text,
  .app-shell[data-collapsed="true"] .sidebar__user-meta,
  .app-shell[data-collapsed="true"] .collapse-label { opacity: 1; width: auto; }
  .topbar-toggle { display: grid; }
  .sidebar__collapse-item { display: none; }
}