/* ── Shell ── */
#portal {
  overflow: hidden;
  min-height: 100vh;
  min-height: 100dvh;
}
#portal .shell {
  position: relative;
  z-index: 1;
  height: 100vh;
  height: 100dvh;
  display: flex;
  align-items: stretch;
}

/* ── Sidebar ── */
#portal .sidebar {
  position: relative;
  transform: none;
  flex-shrink: 0;
  width: var(--sb-collapsed);
  margin: 14px 0 14px 14px;
  display: flex;
  flex-direction: column;
  background: var(--glass-bg);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
  overflow-x: hidden;
  overflow-y: auto;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 10;
}
#portal .sidebar:hover {
  width: var(--sb-w);
}

/* User block */
.sb-user {
  margin: 14px 5px 12px;
  padding: 6px;
  background: var(--card-inner);
  border: 1px solid var(--card-inner-border);
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 0;
  cursor: pointer;
  transition: all 0.2s;
  justify-content: center;
}
#portal .sidebar:hover .sb-user {
  justify-content: flex-start;
  margin: 14px 12px 16px;
  padding: 12px 14px;
}
.sb-user:hover {
  background: var(--row-bg);
  transform: translateX(2px);
}
.sb-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #252535;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--on-glass);
  flex-shrink: 0;
}
.sb-user-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.sb-user-name {
  font-weight: 800;
  font-size: 0.82rem;
  color: var(--on-glass);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sb-user-uni {
  font-size: 0.7rem;
  color: var(--on-glass-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Nav */
.sb-nav {
  flex: 1;
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  scrollbar-width: none;
}
#portal .sidebar:hover .sb-nav {
  padding: 8px 12px;
}
.sb-nav::-webkit-scrollbar {
  display: none;
}
.sb-section-label {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-glass-faint);
  max-height: 0;
  overflow: hidden;
  padding: 0;
  opacity: 0;
  transition:
    max-height 0.3s,
    padding 0.3s,
    opacity 0.2s;
}
#portal .sidebar:hover .sb-section-label {
  max-height: 30px;
  padding: 12px 8px 4px;
  opacity: 1;
}
.sb-divider {
  height: 1px;
  background: var(--glass-border);
  margin: 6px 4px;
  flex-shrink: 0;
}
#portal .sidebar:hover .sb-divider {
  margin: 6px 8px;
}

/* Nav items — override old .psb/.sidebar styles inside portal */
#portal .sidebar .sb-item {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 9px 0;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.18s;
  color: var(--on-glass-muted);
  font-weight: 700;
  font-size: 0.82rem;
  position: relative;
  justify-content: center;
  background: none;
  border: none;
  width: 100%;
  overflow: visible;
  animation: none;
}
/* Suppress old psb shimmer inside sidebar */
#portal .sidebar .sb-item::after {
  display: none !important;
}
#portal .sidebar:hover .sb-item {
  justify-content: flex-start;
  padding: 10px 12px;
}
#portal .sidebar .sb-item:hover {
  background: var(--row-bg);
  color: var(--on-glass);
  transform: translateX(3px);
}
#portal .sidebar .sb-item.on,
#portal .sidebar .sb-item.active {
  background: rgba(37, 99, 235, 0.12);
  color: var(--on-glass);
  animation: none;
  box-shadow: none;
  border-color: transparent;
}
body:not(.night) #portal .sidebar .sb-item.on,
body:not(.night) #portal .sidebar .sb-item.active {
  background: rgba(37, 99, 235, 0.08);
}
#portal .sidebar .sb-item.on::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  border-radius: 3px;
  background: linear-gradient(#2563eb, #2563eb);
}
.sb-icon-img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  display: block;
  pointer-events: none;
}
.sb-sprite {
  display: block;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  background-size: 80%;
  background-repeat: no-repeat;
  background-position: center center;
  pointer-events: none;
}
.sb-item-icon {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  /* Dark mode: deep navy tile with subtle inner highlight */
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition:
    box-shadow 0.18s,
    transform 0.18s;
}
#portal .sidebar .sb-item:hover .sb-item-icon {
  transform: scale(1.08);
  box-shadow:
    0 4px 14px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
#portal .sidebar .sb-item.on .sb-item-icon,
#portal .sidebar .sb-item.active .sb-item-icon {
  background: linear-gradient(145deg, rgba(124, 58, 237, 0.35), rgba(124, 58, 237, 0.18));
  border-color: rgba(124, 58, 237, 0.4);
  box-shadow:
    0 2px 12px rgba(124, 58, 237, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
/* Light mode: white tile with soft shadow */
body:not(.night) .sb-item-icon {
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.09),
    0 1px 2px rgba(0, 0, 0, 0.06);
}
body:not(.night) #portal .sidebar .sb-item:hover .sb-item-icon {
  box-shadow:
    0 4px 14px rgba(0, 0, 0, 0.13),
    0 1px 3px rgba(0, 0, 0, 0.08);
}
body:not(.night) #portal .sidebar .sb-item.on .sb-item-icon,
body:not(.night) #portal .sidebar .sb-item.active .sb-item-icon {
  background: rgba(124, 58, 237, 0.08);
  border-color: rgba(124, 58, 237, 0.2);
  box-shadow: 0 2px 10px rgba(124, 58, 237, 0.15);
}

/* Badge */
.sb-item-badge {
  margin-left: 0;
  background: #2563eb;
  color: #fff;
  font-size: 0.6rem;
  font-weight: 900;
  padding: 0;
  border-radius: 20px;
  flex-shrink: 1;
  min-width: 0;
  opacity: 0;
  max-width: 0;
  overflow: hidden;
  transition:
    opacity 0.15s,
    max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    padding 0.3s;
}
#portal .sidebar:hover .sb-item-badge {
  opacity: 1;
  max-width: 40px;
  margin-left: auto;
  padding: 2px 7px;
}

/* Text collapse — zero width when hidden so icons stay centered */
#portal .sidebar .sb-item > span:not(.sb-item-badge),
#portal .sidebar .sb-user-info {
  opacity: 0;
  max-width: 0;
  min-width: 0;
  overflow: hidden;
  flex-shrink: 1;
  white-space: nowrap;
  transition:
    opacity 0.15s,
    max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
#portal .sidebar:hover .sb-item > span:not(.sb-item-badge),
#portal .sidebar:hover .sb-user-info {
  opacity: 1;
  max-width: 200px;
  pointer-events: auto;
}
/* Restore gaps on expand */
#portal .sidebar:hover .sb-item {
  gap: 12px;
}
#portal .sidebar:hover .sb-user {
  gap: 12px;
}

/* Bottom / night btn */
.sb-bottom {
  padding: 12px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sb-night-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 8px;
  cursor: pointer;
  background: none !important;
  border: none;
  width: 100%;
}
/* pill track — compact when sidebar collapsed, full when expanded */
.sb-night-track {
  position: relative;
  height: 44px;
  width: 44px;
  border-radius: 999px;
  flex-shrink: 0;
  background: linear-gradient(135deg, #f97316, #fbbf24);
  box-shadow: 0 2px 14px rgba(249, 115, 22, 0.4);
  transition:
    width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    background 0.3s,
    box-shadow 0.3s;
  overflow: hidden;
}
body.night .sb-night-track {
  background: linear-gradient(135deg, #1e1b4b, #3730a3);
  box-shadow: 0 2px 14px rgba(55, 48, 163, 0.5);
}
#portal .sidebar:hover .sb-night-track {
  width: 128px;
}
/* sliding thumb */
.sb-night-thumb {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.2);
}
/* night: thumb slides right */
body.night #portal .sidebar:hover .sb-night-thumb {
  transform: translateX(80px);
}
/* label */
.sb-night-track-label {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.95);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.15s;
  pointer-events: none;
}
body.night #portal .sidebar:hover .sb-night-track-label {
  opacity: 1;
}

/* ── Main ── */
#portal .main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#portal .main .topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}
.tb-title {
  font-family: 'Fredoka One', cursive;
  font-size: 1.1rem;
  color: var(--on-glass);
}
.tb-crumb {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--on-glass-muted);
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--row-bg);
  border: 1px solid var(--glass-border);
}
.tb-spacer {
  flex: 1;
}
.tb-action {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563eb, #2563eb);
  color: #fff;
  font-weight: 900;
  font-size: 0.78rem;
  cursor: pointer;
  border: none;
  font-family: 'Nunito', sans-serif;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
  transition: all 0.2s;
}
.tb-action:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(37, 99, 235, 0.5);
}

#portal .main .main-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 28px;
  scrollbar-width: thin;
  scrollbar-color: var(--glass-border) transparent;
}
/* When the editor is active the main-scroll must not add padding or scroll */
#portal .main .main-scroll.editor-active {
  overflow: hidden;
  padding: 0;
}
#portal .main .main-scroll::-webkit-scrollbar {
  width: 5px;
}
#portal .main .main-scroll::-webkit-scrollbar-track {
  background: transparent;
}
#portal .main .main-scroll::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 3px;
}

/* Portal sections */
.portal-section {
  display: block;
}

/* DASHBOARD -- moved to features/css/dashboard.css */

/* Portal topbar: back button + sidebar toggle for files view */
#portal .main .topbar .ptb-back-btn {
  padding: 6px 14px;
  border-radius: 10px;
  background: var(--row-bg);
  border: 1px solid var(--glass-border);
  color: var(--on-glass);
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  font-size: 0.78rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.15s;
  white-space: nowrap;
}
#portal .main .topbar .ptb-back-btn:hover {
  background: rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.3);
}
#portal .main .topbar .ptb-sb-toggle {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--row-bg);
  border: 1px solid var(--glass-border);
  color: var(--on-glass);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.15s;
}
#portal .main .topbar .ptb-sb-toggle:hover {
  background: rgba(37, 99, 235, 0.12);
}

/* ── #app inside portal: override fixed overlay, become flex child ── */
#portal #app {
  position: relative;
  inset: auto;
  z-index: auto;
  flex: 1;
  min-height: 0;
  display: none;
  flex-direction: column;
  overflow: hidden;
  background: transparent;
}
#portal #app .app-body {
  background: transparent;
}

/* ── Fix: portal nav sidebar styles must NOT leak into #app's sidebar ── */
#portal #app .sidebar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sb-w);
  transform: translateX(-100%);
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--card);
  border-right: 1px solid var(--glass-border);
  z-index: 90;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.18);
}
#portal #app .sidebar.visible {
  transform: translateX(0);
}
#portal #app .sidebar:hover {
  width: var(--sb-w);
}

/* ── Files view: replace purple with blue ── */
#portal #app .sb-x-btn {
  background: #eff6ff;
  color: #2563eb;
}
#portal #app .sb-scroll {
  scrollbar-color: #2563eb #eff6ff;
}
#portal #app .sb-scroll::-webkit-scrollbar-thumb {
  background: #2563eb;
}
#portal #app .sem-btn:hover,
#portal #app .sem-btn.open {
  border-color: #2563eb;
}
#portal #app .sem-chev {
  color: #2563eb;
}
#portal #app .sem-dd {
  border-color: #2563eb;
}
#portal #app .sem-opt:hover {
  background: #eff6ff;
  color: #2563eb;
}
#portal #app .sem-opt.sel {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #2563eb;
}
#portal #app .course-row:hover {
  border-color: #2563eb;
}
#portal #app .course-row.active {
  border-color: #2563eb;
  background: #dbeafe;
}
#portal #app .file-row:hover {
  border-color: #2563eb;
  background: #eff6ff;
}
#portal #app .file-row.active {
  border-color: #2563eb;
  background: #dbeafe;
  color: #2563eb;
}
#portal #app .sb-back {
  color: #2563eb;
}
#portal #app .sb-back:hover {
  background: #eff6ff;
}
#portal #app .sb-acc-item.open {
  border-color: #2563eb;
}
#portal #app .sb-acc-hdr:hover {
  background: #eff6ff;
}
#portal #app .sb-acc-item.open .sb-acc-hdr {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #2563eb;
}
#portal #app .sb-acc-label-btn:hover {
  color: #2563eb;
}
#portal #app .sb-acc-chev {
  color: #2563eb;
}
#portal #app .sb-acc-item.open .sb-acc-body {
  scrollbar-color: #2563eb rgba(37, 99, 235, 0.08);
}
#portal #app .sb-acc-item.open .sb-acc-body::-webkit-scrollbar-thumb {
  background: #2563eb;
}
#portal #app .sb-acc-row:hover {
  background: #dbeafe;
  color: #2563eb;
}
#portal #app .sb-acc-row-active {
  background: #dbeafe !important;
  color: #2563eb !important;
}
#portal #app .tt-day-sb {
  color: #2563eb;
}
#portal #app .tt-slot-sb {
  background: #eff6ff;
  border-left-color: #2563eb;
}
#portal #app .mail-sb.unread {
  border-left-color: #2563eb;
  background: #eff6ff;
}
#portal #app .pdf-toolbar {
  border-bottom-color: #bfdbfe;
}
#portal #app .pdf-tb-btn {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #2563eb;
}
#portal #app .pdf-tb-btn:hover {
  background: #dbeafe;
}
#portal #app .loading-dots span {
  background: #2563eb;
}
#portal #app #aiTab {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
}
#portal #app .ai-av {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}
#portal #app .ai-hdr h3 {
  color: #2563eb;
}
#portal #app .ai-icon-btn {
  border-color: rgba(37, 99, 235, 0.3);
  background: rgba(37, 99, 235, 0.1);
  color: #2563eb;
}
#portal #app .msg-sender.bot-sender {
  color: #2563eb;
}
#portal #app .msg-sender.bot-sender .msg-sender-dot {
  background: #2563eb;
}
#portal #app .msg-action-btn:hover {
  background: #2563eb;
  border-color: #2563eb;
}
#portal #app .ai-bubble b,
#portal #app .ai-bubble strong {
  color: var(--text);
}
#portal #app .ai-bubble code {
  background: rgba(37, 99, 235, 0.1);
  color: #2563eb;
}
#portal #app .ai-bubble .md-h {
  color: var(--text);
}
#portal #app .ai-bubble .md-bq {
  border-left-color: #2563eb;
  background: rgba(37, 99, 235, 0.06);
}
#portal #app .ai-bubble .md-code-lang {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.08);
}
#portal #app .typing-bubble span {
  background: #2563eb;
}
#portal #app .ai-sel-banner {
  border-color: rgba(37, 99, 235, 0.18);
  border-left-color: #2563eb;
  background: rgba(37, 99, 235, 0.04);
}
#portal #app .ai-sel-banner b {
  color: #2563eb;
}
#portal #app .ai-sel-btn {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
}
#portal #app .co-card h2 {
  color: #2563eb;
}
#portal #app .co-logo {
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
#portal #app .co-nav-btn:hover {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.09);
  border-color: rgba(37, 99, 235, 0.2);
}
#portal #app .co-nav-btn.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), rgba(14, 165, 233, 0.12));
  color: #2563eb;
  border-color: rgba(37, 99, 235, 0.32);
}
#portal #app .co-file-cb.checked {
  background: rgba(37, 99, 235, 0.5);
  border-color: #2563eb;
}
#portal #app .co-multi-count b {
  color: #60a5fa;
}
#portal #app .co-multi-bar {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.98), rgba(15, 30, 60, 0.98));
  border-top-color: rgba(37, 99, 235, 0.25);
}
#portal #app .msm-save-btn {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(14, 165, 233, 0.15));
  border-color: rgba(37, 99, 235, 0.35);
  color: #2563eb;
}
/* Dark mode blue overrides */
body.night #portal #app .sb-x-btn {
  background: rgba(37, 99, 235, 0.15);
  color: #60a5fa;
}
body.night #portal #app .sem-btn:hover,
body.night #portal #app .sem-btn.open {
  border-color: #3b82f6;
}
body.night #portal #app .sem-chev {
  color: #60a5fa;
}
body.night #portal #app .sem-dd {
  border-color: #3b82f6;
  background: #1a1f2e;
}
body.night #portal #app .sem-opt:hover {
  background: rgba(37, 99, 235, 0.15);
  color: #60a5fa;
}
body.night #portal #app .sem-opt.sel {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(14, 165, 233, 0.15));
  color: #60a5fa;
}
body.night #portal #app .course-row:hover {
  border-color: #3b82f6;
}
body.night #portal #app .course-row.active {
  border-color: #3b82f6;
  background: rgba(37, 99, 235, 0.2);
}
body.night #portal #app .file-row:hover {
  border-color: #3b82f6;
  background: rgba(37, 99, 235, 0.1);
}
body.night #portal #app .file-row.active {
  border-color: #3b82f6;
  background: rgba(37, 99, 235, 0.2);
  color: #60a5fa;
}
body.night #portal #app .sb-back {
  color: #60a5fa;
}
body.night #portal #app .sb-acc-row-active {
  background: rgba(37, 99, 235, 0.25) !important;
  color: #60a5fa !important;
}
body.night #portal #app .pdf-tb-btn {
  background: rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.3);
  color: #60a5fa;
}
body.night #portal #app #aiTab {
  background: linear-gradient(135deg, #2563eb, #1e40af);
}
body.night #portal #app .ai-hdr h3 {
  color: #60a5fa;
}
body.night #portal #app .ai-icon-btn {
  border-color: rgba(96, 165, 250, 0.3);
  background: rgba(37, 99, 235, 0.15);
  color: #60a5fa;
}
body.night #portal #app .msg-sender.bot-sender {
  color: #60a5fa;
}
body.night #portal #app .msg-sender.bot-sender .msg-sender-dot {
  background: #60a5fa;
}
body.night #portal #app .ai-bubble b,
body.night #portal #app .ai-bubble strong {
  color: var(--text);
}
body.night #portal #app .ai-bubble code {
  background: rgba(96, 165, 250, 0.12);
  color: #60a5fa;
}
body.night #portal #app .ai-bubble .md-h {
  color: var(--text);
}
body.night #portal #app .co-card h2 {
  color: #60a5fa;
}
body.night #portal #app .co-nav-btn:hover {
  color: #60a5fa;
  background: rgba(37, 99, 235, 0.15);
  border-color: rgba(96, 165, 250, 0.3);
}
body.night #portal #app .co-nav-btn.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(14, 165, 233, 0.18));
  color: #60a5fa;
}
/* Active tab — override dark and light purple */
#portal #app .co-nav-btn.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.32), rgba(14, 165, 233, 0.22));
  color: #fff;
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow:
    0 2px 16px rgba(37, 99, 235, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}
body:not(.night) #portal #app .co-nav-btn.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), rgba(14, 165, 233, 0.12));
  color: #2563eb;
  border-color: rgba(37, 99, 235, 0.32);
  box-shadow:
    0 2px 18px rgba(37, 99, 235, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
}
body:not(.night) #portal #app .co-nav-btn:hover {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.09);
  border-color: rgba(37, 99, 235, 0.2);
  box-shadow:
    0 4px 16px rgba(37, 99, 235, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}
/* Select multiple button */
#portal #app .co-select-toggle {
  border-color: rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.1);
  color: #2563eb;
}
#portal #app .co-select-toggle:hover {
  background: rgba(37, 99, 235, 0.2);
}
#portal #app .co-select-toggle.active {
  background: rgba(37, 99, 235, 0.25);
  border-color: rgba(37, 99, 235, 0.6);
}
body.night #portal #app .co-select-toggle {
  border-color: rgba(96, 165, 250, 0.35);
  background: rgba(37, 99, 235, 0.12);
  color: #60a5fa;
}
/* Open button (inline styled in JS — override via class) */
#portal #app .co-open-btn {
  background: rgba(37, 99, 235, 0.18) !important;
  color: rgba(96, 165, 250, 0.9) !important;
  border-color: rgba(37, 99, 235, 0.3) !important;
}
#portal #app .co-open-btn:hover {
  background: rgba(37, 99, 235, 0.3) !important;
}
/* Multi-select summarise bar */
#portal #app .co-multi-summarise {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(14, 165, 233, 0.2));
  border-color: rgba(37, 99, 235, 0.4);
}
#portal #app .co-multi-summarise:hover {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.45), rgba(14, 165, 233, 0.35));
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}
/* AI input area + send button blue overrides */
#portal #app .ai-input-area {
  border-top-color: rgba(37, 99, 235, 0.1);
  background: rgba(37, 99, 235, 0.03);
}
#portal #app .ai-input-box {
  border-color: rgba(37, 99, 235, 0.18);
}
body.night #portal #app .ai-input-box {
  background: rgba(15, 23, 42, 0.75);
  border-color: rgba(37, 99, 235, 0.22);
}
#portal #app .ai-input-box:focus-within {
  border-color: #2563eb;
  box-shadow:
    0 0 0 3px rgba(37, 99, 235, 0.1),
    0 4px 20px rgba(37, 99, 235, 0.12);
}
body.night #portal #app .ai-textarea:focus {
  border-color: #3b82f6;
  background: #1a1f2e;
}
#portal #app .ai-send {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
#portal #app .ai-send:hover:not(.is-stop) {
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}
#portal #app .ai-chip {
  border-color: rgba(37, 99, 235, 0.22);
  color: #2563eb;
}
#portal #app .ai-chip:hover {
  background: rgba(37, 99, 235, 0.1);
  border-color: #2563eb;
}
body.night #portal #app .ai-chip {
  border-color: rgba(37, 99, 235, 0.3);
  color: #60a5fa;
}
body.night #portal #app .ai-chip:hover {
  background: rgba(37, 99, 235, 0.15);
  border-color: #3b82f6;
}
/* PDF toolbar back button */
#portal #app .tb-portal-btn {
  color: #2563eb;
}
body.night #portal #app .tb-portal-btn {
  color: #60a5fa;
}
/* AI tip chips */
#portal #app .ai-tip {
  background: rgba(37, 99, 235, 0.07);
  border-color: rgba(37, 99, 235, 0.18);
  color: #2563eb;
}
body.night #portal #app .ai-tip {
  background: rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.28);
  color: #60a5fa;
}
#portal #app .ai-tip:hover {
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}
#portal #app .ai-tip::before {
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
}
/* File chip in AI header */
#portal #app .ai-file-chip {
  background: rgba(37, 99, 235, 0.1);
  border-color: rgba(37, 99, 235, 0.22);
  color: #2563eb;
}
body.night #portal #app .ai-file-chip {
  background: rgba(37, 99, 235, 0.13);
  border-color: rgba(37, 99, 235, 0.28);
  color: #60a5fa;
}
#portal #app .ai-file-chip-bar {
  border-bottom-color: rgba(37, 99, 235, 0.1);
}
/* AI scroll button */
#portal #app .ai-scroll-btn {
  border-color: rgba(37, 99, 235, 0.25);
  color: #2563eb;
}
body.night #portal #app .ai-scroll-btn {
  border-color: rgba(37, 99, 235, 0.3);
  color: #60a5fa;
}
/* AI panel scrollbar */
#portal #app .ai-msgs {
  scrollbar-color: #2563eb rgba(37, 99, 235, 0.08);
}
#portal #app .ai-msgs::-webkit-scrollbar-thumb {
  background: #2563eb;
}

/* ── Portal: Kill purple bleed-through from old global rules ── */
/* Blobs → navy/blue instead of purple */
#portal .blob-1 {
  background: #1e3a8a;
}
#portal .blob-2 {
  background: #1e40af;
}
#portal .blob-3 {
  background: #0369a1;
}
body:not(.night) #portal .blob {
  opacity: 0.18;
}

/* Auth indicator — override !important purple in light mode */
#portal #authIndicator {
  background: var(--card-inner) !important;
  border-color: var(--card-inner-border) !important;
}
#portal #authName {
  color: var(--on-glass) !important;
}

/* Ext banner — override purple border */
#portal .ext-banner {
  border-color: var(--glass-border) !important;
}

/* Kill any remaining psb purple hover/active leaking into sidebar */
#portal .sidebar .sb-item:hover {
  color: var(--on-glass) !important;
  background: var(--row-bg) !important;
}
body:not(.night) #portal .sidebar .sb-item:hover {
  color: var(--on-glass) !important;
  background: var(--row-bg) !important;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .sub-grid,
  .profile-fields {
    grid-template-columns: 1fr;
  }
  .pf-save,
  .profile-save-btn {
    grid-column: span 1;
  }
  .dash-canvas {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── CHATBOT PAGE — moved to features/chatbot/chatbot.css ──────────────────── */

/* ── CHAT — moved to features/css/chat.css ─────────────────────────────────── */