/* Quantrex Academy — visual identity (not Marks navy/teal) */
:root {
  --qx-ease: cubic-bezier(.22,.68,0,1.08);
  --qx-ease-out: cubic-bezier(.16,1,.3,1);
}

html, body {
  background: var(--bg);
}

body:not(.marks-test-active):not(.marks-instr-active)::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(980px 520px at -8% -12%, color-mix(in srgb, var(--primary) 28%, transparent), transparent 58%),
    radial-gradient(760px 420px at 108% -8%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 52%),
    radial-gradient(640px 380px at 80% 110%, color-mix(in srgb, var(--gold) 16%, transparent), transparent 58%);
  animation: qxAurora 18s ease-in-out infinite alternate;
}
@keyframes qxAurora {
  from { filter: hue-rotate(0deg) saturate(1); transform: scale(1); }
  to { filter: hue-rotate(18deg) saturate(1.08); transform: scale(1.04); }
}

.app, .main, .content, .sidebar, .topbar {
  position: relative;
  z-index: 1;
}

/* Floating rail — not Marks flush sidebar */
@media (min-width: 901px) {
  body:not(.marks-test-active):not(.marks-instr-active):not(.qzrr-instr-active) .sidebar {
    top: 14px !important;
    left: 14px !important;
    bottom: 14px !important;
    height: auto !important;
    width: 244px !important;
    border-radius: 28px !important;
    border: 1px solid var(--qx-surface-glass-border, var(--border)) !important;
    background: var(--qx-surface-glass, color-mix(in srgb, var(--card) 88%, transparent)) !important;
    backdrop-filter: blur(18px) saturate(1.15);
    -webkit-backdrop-filter: blur(18px) saturate(1.15);
    box-shadow: 0 18px 50px var(--shadow), 0 0 0 1px color-mix(in srgb, var(--accent) 18%, transparent);
  }
  body:not(.marks-test-active):not(.marks-instr-active) .main {
    margin-left: 272px !important;
    padding: 14px 16px 16px 8px !important;
    overflow: visible !important;
    box-sizing: border-box !important;
  }
  body:not(.marks-test-active) .topbar {
    border-radius: 16px !important;
    overflow: visible !important;
    min-height: 56px !important;
    margin-bottom: 8px !important;
  }
}

.sidebar-head {
  padding: 18px 16px 14px !important;
}
.logo-text {
  font-weight: 800;
  letter-spacing: -0.04em;
}
.nav-item {
  border-radius: 14px !important;
  margin-bottom: 6px !important;
  transition: transform .18s var(--qx-ease), background .18s ease, color .18s ease, box-shadow .18s ease !important;
}
.nav-item:hover {
  transform: translateX(4px);
}
.nav-item.active {
  background: var(--qx-gradient-soft) !important;
  color: var(--dark) !important;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 35%, transparent);
}
html[data-theme="dark"] .nav-item.active { color: var(--text) !important; }
.nav-item .ic {
  transition: transform .22s var(--qx-ease);
}
.nav-item:hover .ic, .nav-item.active .ic {
  transform: scale(1.08) rotate(-4deg);
}

.topbar {
  background: color-mix(in srgb, var(--card) 78%, transparent) !important;
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent !important;
  box-shadow: 0 1px 0 var(--border);
}
.qx-top-exam {
  border-radius: 999px !important;
  transition: transform .16s var(--qx-ease), box-shadow .16s ease, background .16s ease !important;
}
.qx-top-exam:hover { transform: translateY(-1px); }
.qx-top-exam.on {
  background: var(--qx-gradient) !important;
  color: #fff !important;
  box-shadow: 0 8px 22px var(--qx-glow) !important;
}

@media (min-width: 901px) {
  .content {
    max-width: none !important;
    margin: 0 !important;
    padding: 20px 24px 40px !important;
    width: 100% !important;
  }
}
body.marks-test-active,
body.allen-cbt-active {
  overflow: hidden !important;
}
body.marks-test-active .sidebar,
body.marks-test-active #sidebar,
body.marks-test-active .topbar,
body.marks-test-active .qx-top-exams {
  display: none !important;
}
body.marks-test-active .content,
body.marks-test-active #app-main.content,
body.marks-test-active #app-main {
  position: fixed !important;
  inset: 0 !important;
  z-index: 9500 !important;
  max-width: none !important;
  padding: 0 !important;
  margin: 0 !important;
  width: 100% !important;
  height: 100% !important;
  min-height: 100vh !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  overflow: hidden !important;
  background: #eef2f7 !important;
}
body.marks-test-active .main {
  margin-left: 0 !important;
  width: 100% !important;
  max-width: none !important;
  padding: 0 !important;
}

/* Editorial home */
.qx-hero, .dash-greet-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 22px;
  border-radius: 24px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 16%, var(--card)) 0%, var(--card) 55%, color-mix(in srgb, var(--accent) 14%, var(--card)) 100%);
  border: 1px solid var(--border);
  box-shadow: 0 16px 40px var(--shadow);
  animation: qxHeroIn .55s var(--qx-ease-out) both;
}
.dash-greet-left h1 {
  font-family: "Source Serif 4", Georgia, serif !important;
  font-size: clamp(26px, 3.2vw, 36px) !important;
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.dash-avatar {
  width: 52px; height: 52px; border-radius: 16px;
  display: grid; place-items: center;
  background: var(--qx-gradient);
  color: #fff; font-weight: 800;
  box-shadow: 0 8px 20px var(--qx-glow);
}
.dash-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 18px 0 8px;
}
.ds, .dash-stats .ds {
  border-radius: 18px !important;
  padding: 16px 14px !important;
  background: var(--card) !important;
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px var(--shadow);
  transition: transform .22s var(--qx-ease), box-shadow .22s ease;
}
.ds:hover { transform: translateY(-3px); }
.ds strong {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 26px;
  display: block;
}

/* Bento cards — not Marks list rows */
.dash-card, .mth-card, .book-card, .subj-card, .ch-card, .qx-folder-card,
.pyqmock-paper-card, .pyqmock-year-card, .qx-topic-card, .qx-med-subj-card,
.test-card, .note-card, .fc-card {
  border-radius: 20px !important;
  border: 1px solid var(--border) !important;
  background: var(--card) !important;
  box-shadow: 0 10px 28px var(--shadow);
  transition: transform .28s var(--qx-ease), box-shadow .28s ease, border-color .2s ease !important;
  position: relative;
  overflow: hidden;
}
.dash-card:hover, .mth-card:hover, .book-card:hover, .subj-card:hover,
.ch-card:hover, .qx-folder-card:hover:not(.soon), .pyqmock-paper-card:hover,
.pyqmock-year-card:hover, .qx-topic-card:hover, .qx-med-subj-card:hover {
  transform: translateY(-6px) scale(1.012);
  box-shadow: 0 22px 48px var(--shadow), 0 0 0 1px color-mix(in srgb, var(--primary) 28%, transparent);
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border)) !important;
}
.dash-card::after, .mth-card::after, .book-card::after, .pyqmock-paper-card::after,
.qx-folder-card::after, .subj-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 35%, color-mix(in srgb, #fff 22%, transparent) 48%, transparent 62%);
  transform: translateX(-130%);
}
.dash-card:hover::after, .mth-card:hover::after, .book-card:hover::after,
.pyqmock-paper-card:hover::after, .qx-folder-card:hover::after, .subj-card:hover::after {
  animation: qxShine .7s ease;
}
@keyframes qxShine {
  to { transform: translateX(130%); }
}
@keyframes qxHeroIn {
  from { opacity: 0; transform: translateY(12px) scale(.98); }
  to { opacity: 1; transform: none; }
}

.pyqmock-paper-card {
  display: grid;
  gap: 8px;
  padding: 16px !important;
}
.pyqmock-take {
  background: var(--qx-gradient) !important;
  color: #fff !important;
  box-shadow: 0 8px 18px var(--qx-glow);
}
.pyqmock-practice {
  background: var(--card) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
}

.btn-primary, .eg-cfg-go, .ct-create-sticky, .qx-premium-pill {
  background: var(--qx-gradient) !important;
  color: #fff !important;
  border: 0 !important;
  box-shadow: 0 10px 24px var(--qx-glow);
  transition: transform .18s var(--qx-ease), filter .18s ease !important;
}
.btn-primary:hover, .eg-cfg-go:hover, .ct-create-sticky:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
}

/* Custom-test wizard: gold/violet, not Marks teal */
.ct-wizard-overlay { background: rgba(10, 8, 14, .78) !important; backdrop-filter: blur(10px); }
.ct-wizard-shell, .ct-wizard-left-panel, .ct-wizard-left-inner {
  background: color-mix(in srgb, var(--card) 92%, #000) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}
.ct-wizard-right-inner { background: color-mix(in srgb, var(--bg) 90%, #000) !important; }
.ct-wiz-progress span {
  background: var(--qx-gradient) !important;
}
.ct-wiz-card.on, .ct-wiz-ch-card.on, .ct-wiz-ch-card.ct-folder.on {
  border-color: var(--accent) !important;
  background: color-mix(in srgb, var(--accent) 14%, var(--card)) !important;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent);
}
.ct-wiz-next-btn {
  background: var(--qx-gradient) !important;
  color: #fff !important;
}
.ct-wiz-show-units, .ct-wiz-link-btn { color: var(--primary) !important; }

/* Page enter */
.content.qx-fade-in {
  animation: qxPageIn .42s var(--qx-ease-out) both;
}
@keyframes qxPageIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.mth-card, .dash-card, .subj-card, .book-card, .pyqmock-paper-card, .pyqmock-year-card {
  animation: qxCardUp .48s var(--qx-ease-out) both;
}
@keyframes qxCardUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  body::before, .content.qx-fade-in, .mth-card, .dash-card, .dash-greet-bar { animation: none !important; }
  .dash-card:hover, .mth-card:hover { transform: none !important; }
}

@media (max-width: 900px) {
  body:not(.marks-test-active) .sidebar {
    border-radius: 0 !important;
    top: 0 !important; left: 0 !important; bottom: 0 !important;
  }
  body:not(.marks-test-active) .main { margin-left: 0 !important; }
  .dash-stats { grid-template-columns: 1fr 1fr; }
  body:not(.marks-test-active):not(.marks-instr-active)::before {
    animation: none !important;
    filter: none !important;
    transform: none !important;
  }
}

/* Official NTA CBT + ExamGOAL chrome keep their own colors */
.eg-test-root, .qzrr-cbt, .ts-premium-app { isolation: isolate; }
body.marks-test-active::before { display: none !important; }