/* LazyIITians visual system — depth, type, hierarchy, motion, density */

.study-page .oppe-main {
  padding: 1.05rem 1.4rem 1.4rem;
}
.study-header {
  position: relative;
  margin-bottom: 1.15rem;
}
.study-header::after {
  content: "";
  position: absolute;
  left: -1rem;
  top: -.4rem;
  width: 9rem;
  height: 5rem;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 28%, transparent), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.study-header-copy,
.header-tools { position: relative; z-index: 1; }
.study-header h1 {
  font-family: var(--display);
  font-size: clamp(1.55rem, 2.2vw, 2.05rem);
  font-weight: 750;
  letter-spacing: -.045em;
}
.study-breadcrumb {
  font-size: .72rem;
  font-weight: 650;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.subtitle { color: var(--muted); font-size: .92rem; }

@keyframes li-rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
.li-page > *,
.study-section,
.subject-tiles .subject-tile,
.mode-card,
.product-card,
.q-row,
.stat-chip,
.stat-block {
  animation: li-rise .48s cubic-bezier(.22, 1, .36, 1) both;
}
.subject-tiles .subject-tile:nth-child(1), .product-card:nth-child(1) { animation-delay: .04s; }
.subject-tiles .subject-tile:nth-child(2), .product-card:nth-child(2) { animation-delay: .08s; }
.subject-tiles .subject-tile:nth-child(3) { animation-delay: .12s; }
.subject-tiles .subject-tile:nth-child(4) { animation-delay: .16s; }
.subject-tiles .subject-tile:nth-child(5) { animation-delay: .2s; }
.subject-tiles .subject-tile:nth-child(6) { animation-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .li-page > *, .subject-tile, .mode-card, .product-card, .q-row { animation: none !important; }
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin: 0 0 .35rem;
  color: var(--primary);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
html[data-theme="dark"] .hero-kicker { color: var(--accent); }

.product-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  gap: 1rem;
  margin-bottom: 1.15rem;
  max-width: none !important;
}
.product-card {
  position: relative;
  overflow: hidden;
  padding: 1.35rem 1.4rem 1.2rem;
  border-radius: 18px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel) 88%, #fff), var(--panel));
  box-shadow: var(--shadow);
  isolation: isolate;
}
.product-card::before {
  content: "";
  position: absolute;
  inset: auto -20% -40% auto;
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 22%, transparent), transparent 70%);
  z-index: -1;
}
.product-card.is-oppe {
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  border-top: 3px solid var(--accent);
}
.product-card.is-quiz {
  border: 1px solid color-mix(in srgb, var(--cyan, var(--primary)) 35%, var(--border));
  border-top: 3px solid var(--cyan, var(--primary));
}
.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), var(--glow);
}
.product-card:hover .card-cta .li-icon { transform: translateX(4px); }
.product-card h2,
.product-card h3 {
  font-family: var(--display);
  font-size: 1.55rem;
}
.card-cta {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
}
.card-cta .li-icon { transition: transform .2s ease; }

.dash-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.continue-panel {
  border: 1px solid color-mix(in srgb, var(--primary) 18%, var(--border));
  background:
    linear-gradient(120deg, color-mix(in srgb, var(--primary) 8%, var(--panel)), var(--panel) 42%);
  padding: 1.05rem 1.15rem;
}
.continue-panel .button,
a.button {
  border-radius: 10px !important;
  box-shadow: 0 8px 16px rgba(240, 192, 20, 0.22);
  transition: transform .18s ease, box-shadow .18s ease;
}
a.button:hover { transform: translateY(-1px); }

.stat-row,
.progress-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: .7rem;
}
.stat-chip,
.stat-block {
  position: relative;
  overflow: hidden;
  padding: .85rem .95rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
}
.stat-chip::after,
.stat-block::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--primary);
}
.stat-chip:nth-child(2)::after,
.stat-block:nth-child(2)::after { background: var(--teal); }
.stat-chip:nth-child(3)::after,
.stat-block:nth-child(3)::after { background: var(--accent); }
.stat-chip strong,
.stat-block strong {
  font-family: var(--display);
  font-size: 1.45rem;
  letter-spacing: -.04em;
}
.stat-row.is-secondary {
  max-width: none;
  opacity: 1;
  margin-top: 0;
}

.subject-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: .9rem;
  max-width: none !important;
}
.subject-tile {
  position: relative;
  overflow: hidden;
  gap: .38rem;
  padding: 1.05rem 1.1rem 1rem;
  border-radius: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--subject-accent, var(--primary));
  box-shadow: var(--shadow);
}
.subject-tile::after {
  content: "";
  position: absolute;
  right: -1.5rem;
  top: -1.5rem;
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--subject-accent, var(--primary)) 22%, transparent), transparent 70%);
  pointer-events: none;
}
.subject-tile:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--subject-accent, var(--primary)) 45%, var(--border));
  box-shadow: var(--shadow-lg), 0 0 0 1px color-mix(in srgb, var(--subject-accent, var(--primary)) 25%, transparent);
}
.subject-badge {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--subject-accent, var(--primary)) 18%, var(--panel-soft));
  color: var(--subject-accent, var(--primary));
  font-family: var(--display);
  font-size: .78rem;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--subject-accent, var(--primary)) 28%, transparent);
}
.subject-tile strong {
  font-family: var(--display);
  font-size: 1.02rem;
  letter-spacing: -.02em;
}
.progress-bar {
  height: 7px;
  border: 0;
  background: color-mix(in srgb, var(--subject-accent, var(--primary)) 12%, var(--panel-soft));
}
.progress-bar > span {
  width: 0;
  background: var(--subject-accent, var(--accent));
  animation: li-fill .9s cubic-bezier(.22, 1, .36, 1) forwards;
}
@keyframes li-fill { to { width: var(--pct, 100%); } }

.mode-grid { gap: .9rem; }
.mode-card {
  position: relative;
  overflow: hidden;
  min-height: 8.6rem;
  padding: 1.2rem 1.2rem 1.1rem;
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.mode-card.is-primary {
  border: 1px solid color-mix(in srgb, var(--primary) 22%, var(--border));
}
.mode-card.is-primary:first-child { border-top: 3px solid var(--primary); }
.mode-card.is-primary:nth-child(2) { border-top: 3px solid var(--accent); }
.mode-card.is-secondary { border-top: 3px solid var(--cyan, var(--teal)); }
.mode-card.is-soon { border-top: 3px dashed var(--muted); }
.mode-card:hover:not(.is-soon) {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.mode-card h3 {
  font-family: var(--display);
  font-size: 1.18rem;
}
.mode-ico {
  width: 1.35rem;
  height: 1.35rem;
  margin-bottom: .15rem;
}
.mode-card.is-primary:first-child .mode-ico { color: var(--primary); }
.mode-card.is-primary:nth-child(2) .mode-ico { color: var(--orange); }
.mode-grid-secondary .mode-card.is-secondary .mode-ico { color: var(--cyan, var(--teal)); }

.filter-toolbar,
.set-filters {
  padding: .55rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.q-list {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: var(--shadow);
  max-height: none;
  overflow: visible;
}
.q-row {
  padding: 0;
  transition: background .16s ease, box-shadow .16s ease, transform .16s ease;
}
.q-row:hover {
  background: color-mix(in srgb, var(--primary) 7%, var(--panel-soft));
}
.q-row h3 {
  font-family: var(--display);
  font-size: .95rem;
}

.workspace-main {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel) 92%, #fff), var(--panel));
  border-color: color-mix(in srgb, var(--primary) 14%, var(--border));
  box-shadow: var(--shadow);
}
.content-tabs button.active {
  color: var(--text) !important;
}
.public-test-card,
.result-card {
  background: var(--panel-soft);
  border-color: var(--border);
  box-shadow: none;
}
.public-test-card.is-pass,
.result-card.is-pass {
  background: color-mix(in srgb, var(--green) 8%, var(--panel));
}
.public-test-card.is-fail,
.result-card.is-fail {
  background: color-mix(in srgb, var(--red) 8%, var(--panel));
}
.tests-exec-summary {
  background: var(--panel);
  box-shadow: var(--shadow);
}
.verdict-banner {
  background: var(--panel);
  box-shadow: var(--shadow);
}
.verdict-banner strong {
  font-family: var(--display);
  letter-spacing: -.03em;
}

.li-table {
  box-shadow: var(--shadow);
}
.li-table tbody tr { transition: background .15s ease; }
.li-table tbody tr:hover { background: color-mix(in srgb, var(--primary) 7%, var(--panel)); }

.sub-list { display: grid; gap: .55rem; }
.sub-item {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto auto auto;
  gap: .75rem;
  align-items: center;
  padding: .85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: inherit !important;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease;
}
.sub-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.sub-item strong { font-family: var(--display); display: block; }
.sub-item small { color: var(--muted); }
.verdict-pill {
  padding: .2rem .55rem;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 800;
  background: var(--panel-soft);
  border: 1px solid var(--border);
}
.verdict-pill.is-ok { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, var(--border)); }
.verdict-pill.is-fail { color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, var(--border)); }

.coming-soon-card {
  max-width: none;
  padding: 1.5rem 1.5rem;
  border-radius: 18px;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--cyan, var(--primary)) 10%, var(--panel)), var(--panel));
  box-shadow: var(--shadow);
}
.workspace-main.is-busy .editor-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.07), transparent);
  animation: li-shimmer 1.2s linear infinite;
  pointer-events: none;
}
.empty-state {
  background:
    linear-gradient(180deg, var(--panel), var(--panel-soft));
  box-shadow: var(--shadow);
}

.icon-button {
  border-radius: 10px !important;
  transition: transform .16s ease, box-shadow .16s ease;
}
.icon-button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.study-section { margin-bottom: 1.25rem; }
.study-section > h2 {
  font-family: var(--display);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: .65rem;
}

html[data-theme="dark"] .product-card,
html[data-theme="dark"] .subject-tile,
html[data-theme="dark"] .mode-card,
html[data-theme="dark"] .workspace-main,
html[data-theme="dark"] .continue-panel,
html[data-theme="dark"] .stat-chip,
html[data-theme="dark"] .stat-block,
html[data-theme="dark"] .q-list,
html[data-theme="dark"] .sub-item {
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 42%), var(--panel);
}

.oppe-shell { background: transparent !important; }
.oppe-main { background: transparent; }
.brand-logo {
  width: 3rem;
  height: 3rem;
}
.brand-text {
  font-size: 1.18rem;
  letter-spacing: -.045em;
}
.sidebar-nav a:hover .nav-ico {
  transform: translateY(-1px);
  filter: drop-shadow(0 0 8px color-mix(in srgb, currentColor 55%, transparent));
}
.nav-ico { transition: transform .2s ease, filter .2s ease; }
.sidebar-nav a.active {
  box-shadow: 0 8px 22px rgba(240, 192, 20, 0.32), 0 0 0 1px rgba(240, 192, 20, 0.35);
}

.btn-cta,
.filter-toolbar button,
.set-filters button,
.auth-actions button,
.continue-panel .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .62rem 1.05rem;
  text-decoration: none;
  background: linear-gradient(180deg, #ffd34a, var(--accent)) !important;
  color: var(--accent-ink) !important;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, #b8860b) !important;
  border-radius: 10px !important;
  box-shadow: 0 8px 16px rgba(240, 192, 20, 0.22);
  font-weight: 750 !important;
  transition: transform .18s ease, box-shadow .18s ease;
}
.btn-cta:hover,
.filter-toolbar button:hover,
.set-filters button:hover,
.auth-actions button:hover,
.continue-panel .button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 22px rgba(240, 192, 20, 0.3);
}
.btn-cta:active,
.filter-toolbar button:active,
.set-filters button:active,
.btn-submit:active,
.btn-run:active { transform: translateY(0); }
.btn-run,
.btn-outline,
.logout-btn {
  border-radius: 10px !important;
}
button:focus-visible,
.icon-button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.study-page input,
.study-page select,
.study-page textarea {
  background: var(--panel) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
  border-radius: 10px !important;
}
.study-page input:focus,
.study-page select:focus,
.study-page textarea:focus {
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border)) !important;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}

.subject-badge { display: grid; place-items: center; }
.subject-tile small:last-of-type { font-weight: 650; }
.lang-pill {
  width: fit-content;
  padding: .08rem .4rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--subject-accent, var(--primary)) 12%, var(--panel-soft));
  color: var(--subject-accent, var(--primary));
  font-size: .68rem;
  font-weight: 750;
}

.mode-grid-primary,
.mode-grid-secondary { margin-bottom: .9rem; }
.mode-card[data-mode="pyqs"] { border-top: 3px solid var(--primary); }
.mode-card[data-mode="practice"] { border-top: 3px solid var(--accent); }
.mode-card[data-mode="grpa"] { border-top: 3px dashed var(--muted); }
.mode-card[data-mode="mock"] { border-top: 3px solid var(--cyan); }
.mode-card[data-mode="pyqs"] .mode-ico { color: var(--primary); }
.mode-card[data-mode="practice"] .mode-ico { color: var(--orange); }
.mode-card[data-mode="mock"] .mode-ico { color: var(--cyan); }
.mode-card .mode-kicker {
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}

.q-nav {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel) 88%, #fff), var(--panel));
  box-shadow: var(--shadow);
}
.q-nav a {
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.q-nav a:hover { transform: translateY(-1px); }
.q-nav a.current {
  box-shadow: 0 6px 16px rgba(240, 192, 20, 0.28);
}
.q-nav a.solved:not(.current) {
  background: color-mix(in srgb, var(--green) 12%, var(--panel-soft));
}
.split-resizer:hover::before { box-shadow: 0 0 10px color-mix(in srgb, var(--primary) 45%, transparent); }
.filename-tab { box-shadow: 0 0 12px rgba(240, 192, 20, 0.18); }
.editor-toolbar-left {
  display: flex;
  align-items: center;
  gap: .45rem;
  flex-shrink: 0;
}
.editor-toolbar .btn-reset-toolbar {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  padding: .34rem .72rem;
  border-radius: 6px;
  font-size: .74rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  background: #dc3545 !important;
  color: #fff !important;
  border: 1px solid #b02a37 !important;
  box-shadow: 0 2px 10px rgba(220, 53, 69, 0.42);
}
.editor-toolbar .btn-reset-toolbar:hover {
  background: #c82333 !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(220, 53, 69, 0.5);
}
.content-tabs button {
  border-radius: 9px;
  transition: background .18s ease, color .18s ease, box-shadow .18s ease;
}
.content-tabs button.active {
  background: color-mix(in srgb, var(--primary) 12%, var(--panel)) !important;
  box-shadow: inset 0 -2px 0 var(--accent);
}

.io-label {
  display: block;
  margin: .45rem 0 .2rem;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}
.public-test-card,
.result-card,
.private-summary-card {
  border-radius: 12px;
}
.public-test-card pre,
.result-card pre,
.example-block pre {
  background: var(--code-bg) !important;
  color: var(--code-fg) !important;
}
.public-test-card.is-compile,
.result-card.is-compile {
  border-left-color: var(--orange);
  background: color-mix(in srgb, var(--orange) 9%, var(--panel));
}
.public-test-card.is-runtime,
.result-card.is-runtime {
  border-left-color: #e25a2a;
  background: color-mix(in srgb, #e25a2a 9%, var(--panel));
}
.verdict-badge.compile { color: var(--orange); }
.verdict-badge.runtime { color: #e25a2a; }
.tests-exec-summary {
  position: sticky;
  top: 0;
  z-index: 2;
  border-radius: 12px;
  backdrop-filter: blur(8px);
}
.tests-exec-summary.is-ok {
  background: color-mix(in srgb, var(--green) 12%, var(--panel));
  color: var(--green);
}
.tests-exec-summary.is-error {
  background: color-mix(in srgb, var(--red) 10%, var(--panel));
}

.error-headline {
  font-weight: 600;
  color: var(--orange);
  margin-bottom: 0.35rem;
}

.public-test-card.is-runtime .error-headline,
.result-card.is-runtime .error-headline {
  color: #e25a2a;
}

.CodeMirror-line.editor-error-line,
.CodeMirror-linebackground.editor-error-line {
  background: color-mix(in srgb, var(--red) 16%, transparent) !important;
}

.editor-error-mark {
  background: color-mix(in srgb, var(--red) 28%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--red) 55%, transparent);
}

.verdict-banner.is-ok { box-shadow: 0 10px 24px color-mix(in srgb, var(--green) 18%, transparent); }
.verdict-banner.is-fail { box-shadow: 0 10px 24px color-mix(in srgb, var(--red) 16%, transparent); }
.verdict-banner.is-compile {
  border-color: color-mix(in srgb, var(--orange) 45%, var(--border));
  background: color-mix(in srgb, var(--orange) 10%, var(--panel));
}
.verdict-banner.is-runtime {
  border-color: color-mix(in srgb, #e25a2a 45%, var(--border));
  background: color-mix(in srgb, #e25a2a 10%, var(--panel));
}
.verdict-pill.is-warn {
  color: var(--orange);
  border-color: color-mix(in srgb, var(--orange) 40%, var(--border));
}

.set-meta {
  display: flex;
  gap: .7rem;
  margin-bottom: .85rem;
}
.set-meta span {
  padding: .35rem .7rem;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--border);
  font-size: .78rem;
  font-weight: 700;
  box-shadow: var(--shadow);
}
.set-section {
  margin: 1.35rem 0 .55rem;
  font-size: 1.02rem;
  font-weight: 750;
}
.status-pills a.active {
  background: var(--primary) !important;
  color: #fff !important;
  box-shadow: 0 6px 14px color-mix(in srgb, var(--primary) 28%, transparent);
}
.solved-pill.is-yes { color: var(--green); }

.topic-chip {
  box-shadow: var(--shadow);
  transition: transform .16s ease;
}
.topic-chip:hover { transform: translateY(-1px); }

.mock-intro-card {
  max-width: none;
  padding: 1.15rem 1.2rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  border-top: 3px solid var(--cyan);
  background: var(--panel);
  box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}
.mock-intro-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.mock-intro-card h2 {
  font-family: var(--display);
  font-size: 1.15rem;
}
.mock-intro-card button {
  background: linear-gradient(180deg, #ffd34a, var(--accent)) !important;
  color: var(--accent-ink) !important;
  border-radius: 10px !important;
}

.loading .editor-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.06), transparent);
  animation: li-shimmer 1.2s linear infinite;
  pointer-events: none;
}
.editor-frame { position: relative; }
@keyframes li-shimmer {
  from { transform: translateX(-40%); }
  to { transform: translateX(40%); }
}

body.oppe-auth {
  background:
    radial-gradient(900px 420px at 12% -8%, color-mix(in srgb, var(--primary) 22%, transparent), transparent 58%),
    radial-gradient(700px 360px at 92% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 50%),
    linear-gradient(180deg, color-mix(in srgb, var(--primary) 8%, var(--bg)) 0%, var(--bg) 100%) !important;
}
html[data-theme="dark"] body.oppe-auth {
  background:
    radial-gradient(900px 480px at 8% -12%, rgba(70, 140, 255, 0.22), transparent 55%),
    radial-gradient(640px 340px at 100% 0%, rgba(246, 211, 56, 0.08), transparent 46%),
    linear-gradient(180deg, #0a1528 0%, #07101c 100%) !important;
}
.auth-shell {
  border: 1px solid color-mix(in srgb, var(--primary) 18%, var(--border));
  border-top: 3px solid var(--accent);
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel) 88%, #fff), var(--panel));
}
.auth-shell h1 {
  font-family: var(--display);
  letter-spacing: -.04em;
  font-size: 1.7rem;
}
.auth-student-mail-notice {
  font-family: var(--display);
  font-size: clamp(1.4rem, 4.5vw, 1.95rem);
  font-weight: 800;
  letter-spacing: -.03em;
  color: #c62828;
}
html[data-theme="dark"] .auth-student-mail-notice {
  color: #ff8a80;
}
.auth-brand span {
  font-family: var(--display);
  font-weight: 800;
  letter-spacing: -.04em;
}

html[data-theme="dark"] .q-nav,
html[data-theme="dark"] .auth-shell,
html[data-theme="dark"] .mock-intro-card,
html[data-theme="dark"] .filter-toolbar,
html[data-theme="dark"] .set-filters {
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 42%), var(--panel);
}

/* Dark mode depth — restrained, not neon */
html[data-theme="dark"] .subject-tile::after {
  width: 7rem;
  height: 7rem;
  background: radial-gradient(circle, color-mix(in srgb, var(--subject-accent, var(--primary)) 34%, transparent), transparent 72%);
}
html[data-theme="dark"] .subject-badge {
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--subject-accent, var(--primary)) 40%, transparent),
    0 0 18px color-mix(in srgb, var(--subject-accent, var(--primary)) 22%, transparent);
}
html[data-theme="dark"] .progress-bar > span {
  box-shadow: 0 0 10px color-mix(in srgb, var(--subject-accent, var(--accent)) 45%, transparent);
}
html[data-theme="dark"] .sidebar-nav a.active {
  box-shadow: 0 8px 24px rgba(240, 192, 20, 0.28), 0 0 18px rgba(107, 180, 255, 0.12);
}
html[data-theme="dark"] .study-header h1 {
  color: var(--text);
  text-shadow: 0 0 42px rgba(107, 180, 255, 0.16);
}
html[data-theme="dark"] .workspace-page .study-header h1 {
  background: none;
  color: var(--text);
  -webkit-background-clip: unset;
  background-clip: unset;
}

html[data-theme] body,
html[data-theme] .lazy-sidebar,
html[data-theme] .subject-tile,
html[data-theme] .product-card,
html[data-theme] .mode-card,
html[data-theme] .workspace-main {
  transition: background-color .22s ease, border-color .22s ease, color .22s ease, box-shadow .22s ease;
}

.workspace-page .study-header { margin-bottom: .4rem; }
.workspace-page .workspace-main {
  border-radius: 14px;
}
.editor-pane {
  border-radius: 12px;
}
.CodeMirror-cursor { border-left-width: 2px !important; }
html[data-theme="light"] .CodeMirror-cursor { border-left-color: #1e4fd7 !important; }
html[data-theme="dark"] .CodeMirror-cursor { border-left-color: #f6d338 !important; }
html[data-theme="light"] .CodeMirror-selected,
html[data-theme="light"] .CodeMirror-line::selection,
html[data-theme="light"] .CodeMirror-line > span::selection {
  background: rgba(30, 79, 215, 0.16) !important;
}
html[data-theme="dark"] .CodeMirror-selected,
html[data-theme="dark"] .CodeMirror-line::selection,
html[data-theme="dark"] .CodeMirror-line > span::selection {
  background: rgba(107, 180, 255, 0.22) !important;
}
html[data-theme="light"] .CodeMirror-activeline-background { background: rgba(30, 79, 215, 0.055) !important; }
html[data-theme="dark"] .CodeMirror-activeline-background { background: rgba(107, 180, 255, 0.07) !important; }
.cm-s-eclipse .CodeMirror-gutters { background: var(--editor-gutter) !important; }
.cm-s-material-darker .CodeMirror-gutters { background: var(--editor-gutter) !important; }
html[data-theme="light"] .CodeMirror-linenumber { color: #5f6f8c !important; }
html[data-theme="dark"] .CodeMirror-linenumber { color: #8ea0c0 !important; }

.public-kicker {
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: .15rem;
}
.study-section.is-emphasis h2 { color: var(--orange); }
.study-section.is-emphasis .topic-chip {
  border-color: color-mix(in srgb, var(--orange) 35%, var(--border));
  background: color-mix(in srgb, var(--orange) 8%, var(--panel));
}
.verdict-banner {
  position: sticky;
  top: 0;
  z-index: 3;
}

@media (max-width: 1100px) {
  .dash-grid,
  .product-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .stat-row, .progress-grid { grid-template-columns: 1fr; }
  .sub-item { grid-template-columns: 1fr 1fr; }
}

/* Prompt 3 — subject hub, PYQ/practice lists, mock setup */
.hub-page {
  max-width: 960px;
}
.hub-progress {
  max-width: none;
  margin: -.35rem 0 .85rem;
}
.hub-bank-meta {
  margin: -.4rem 0 1.1rem;
  color: var(--muted);
  font-size: .82rem;
}
.hub-modes {
  gap: .7rem;
}
.hub-modes .mode-card {
  min-height: 0;
  padding: .85rem .95rem .8rem;
}
.hub-modes .mode-card.is-primary {
  min-height: 0;
  padding: .95rem 1rem .9rem;
}
.hub-modes .mode-card.is-secondary {
  background: var(--panel-soft);
  box-shadow: none;
}
.hub-modes .mode-card.is-secondary:hover {
  background: var(--panel);
  box-shadow: var(--shadow);
}
.hub-modes .mode-card h3 { font-size: 1.02rem; }
.hub-modes .mode-card p { font-size: .8rem; }
.hub-modes .mode-ico { margin-bottom: .05rem; }

.filter-toolbar {
  max-width: 960px;
  overflow-x: hidden;
}
.filter-toolbar select:has(option:checked:not([value=""])) {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  background: color-mix(in srgb, var(--primary) 8%, var(--panel));
}

.q-list {
  max-width: 960px;
  max-height: none !important;
  overflow: visible;
}
.q-row {
  display: flex;
  align-items: stretch;
  border-radius: 0;
}
.q-row:first-child { border-radius: 13px 13px 0 0; }
.q-row:last-child { border-radius: 0 0 13px 13px; border-bottom: 0; }
.q-row:hover,
.q-row:focus-within {
  background: color-mix(in srgb, var(--primary) 7%, var(--panel-soft));
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  z-index: 1;
}
.q-row-main {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr) auto auto auto;
  gap: .7rem;
  align-items: center;
  flex: 1;
  min-width: 0;
  padding: .72rem .35rem .72rem 1rem;
  color: inherit !important;
  text-decoration: none;
  border-radius: inherit;
}
.q-row-main:focus-visible,
.q-bookmark:focus-visible,
.q-reset:focus-visible,
.prev-next a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.q-copy { min-width: 0; }
.q-copy h3 {
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.q-meta-line {
  margin: .18rem 0 0;
  color: var(--muted);
  font-size: .75rem;
}
.status-pill {
  padding: .18rem .55rem;
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 750;
  border: 1px solid var(--border);
  background: var(--panel-soft);
  white-space: nowrap;
}
.status-pill.is-solved {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 40%, var(--border));
  background: color-mix(in srgb, var(--green) 10%, var(--panel));
}
.status-pill.is-attempted {
  color: var(--orange);
  border-color: color-mix(in srgb, var(--orange) 40%, var(--border));
  background: color-mix(in srgb, var(--orange) 10%, var(--panel));
}
.status-pill.is-unsolved { color: var(--muted); }
.q-open {
  display: grid;
  place-items: center;
  color: var(--muted);
  opacity: .55;
}
.q-row:hover .q-open,
.q-row:focus-within .q-open { opacity: 1; color: var(--primary); }
.q-row-actions {
  display: flex;
  align-items: stretch;
  flex: 0 0 auto;
  margin: .35rem .45rem .35rem 0;
}
.q-row .q-bookmark,
.q-row .q-reset {
  flex: 0 0 auto;
  width: 2.4rem;
  margin: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 10px;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.q-row .q-bookmark:hover { color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, transparent); }
.q-row .q-reset:hover {
  color: #c82333;
  background: color-mix(in srgb, #dc3545 12%, transparent);
}
.q-row .q-reset:disabled {
  opacity: .45;
  cursor: wait;
}
.q-bookmark.is-on {
  color: var(--accent);
}
.q-bookmark.is-on svg { fill: currentColor; }

.workspace-nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem 1rem;
}
.prev-next {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .82rem;
}

.mock-setup-card {
  max-width: 640px;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}
.mock-setup-page .mock-setup-card {
  max-width: none;
}
.mock-setup-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
  margin-bottom: .9rem;
}
.mock-setup-grid label {
  margin: 0;
  font-size: .78rem;
  color: var(--muted);
}
.mock-setup-grid input,
.mock-setup-grid select {
  margin-top: .3rem;
  background: var(--panel-soft);
  color: var(--text);
  border-color: var(--border);
}
.empty-state {
  max-width: 640px;
  padding: 1.05rem 1.15rem;
}
.empty-state .btn-cta { margin-top: .85rem; }
.empty-state.is-ready {
  border-style: solid;
  border-color: color-mix(in srgb, var(--green) 40%, var(--border));
}

.coming-soon-card {
  max-width: 640px;
  border-style: solid;
  cursor: default;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.coming-soon-card h2 {
  display: flex;
  align-items: center;
  gap: .45rem;
}

html[data-theme="dark"] .mock-setup-card,
html[data-theme="dark"] .coming-soon-card,
html[data-theme="dark"] .empty-state,
html[data-theme="dark"] .status-pill {
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 42%), var(--panel);
}

@media (max-width: 900px) {
  .q-row-main {
    grid-template-columns: 2.5rem minmax(0, 1fr);
  }
  .q-row .difficulty,
  .q-row .status-pill,
  .q-row .q-open { justify-self: start; }
  .mock-setup-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .hub-modes { grid-template-columns: 1fr; }
}

/* Prompt 4 — premium visual / UX pass */
[data-subject="python"] { --subject-accent: #2f6fed; }
[data-subject="pdsa"] { --subject-accent: #0f8a8a; }
[data-subject="dbms"] { --subject-accent: #d97706; }
[data-subject="java"] { --subject-accent: #e8b931; }
[data-subject="system-commands"] { --subject-accent: #5d6d86; }
[data-subject="mlp"] { --subject-accent: #6d5cff; }

.study-page .oppe-main {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--primary) 35%, var(--border)) transparent;
}
.study-page .oppe-main::-webkit-scrollbar,
.statement-scroll::-webkit-scrollbar,
.q-nav::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.study-page .oppe-main::-webkit-scrollbar-thumb,
.statement-scroll::-webkit-scrollbar-thumb,
.q-nav::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--primary) 32%, var(--border));
  border-radius: 99px;
}

.lazy-sidebar {
  background:
    radial-gradient(380px 200px at 0% 0%, rgba(240, 192, 20, 0.14), transparent 58%),
    radial-gradient(280px 180px at 100% 100%, rgba(30, 79, 215, 0.18), transparent 62%),
    linear-gradient(180deg, #122040 0%, #0c1730 46%, #091326 100%);
}
html[data-theme="dark"] .lazy-sidebar {
  background:
    radial-gradient(380px 200px at 0% 0%, rgba(246, 211, 56, 0.11), transparent 58%),
    radial-gradient(260px 160px at 110% 100%, rgba(107, 180, 255, 0.1), transparent 60%),
    linear-gradient(180deg, #0c1730 0%, #07101e 100%);
}
.sidebar-user {
  background: rgba(255, 255, 255, 0.045);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.user-avatar {
  box-shadow: 0 0 0 2px rgba(240, 192, 20, 0.28);
}
.sidebar-nav a {
  border: 1px solid transparent;
}
.sidebar-nav a:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.06);
}
.sidebar-nav a.active {
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 78%, #fff8d0));
  box-shadow: 0 8px 20px rgba(240, 192, 20, 0.3), 0 0 18px rgba(240, 192, 20, 0.16);
}
.sidebar-nav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.sidebar-nav .nav-soon {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .58rem .65rem;
  border-radius: 9px;
  color: var(--sidebar-text);
  font-size: .86rem;
  font-weight: 550;
  opacity: .95;
  cursor: default;
}
.sidebar-nav .nav-soon-badge {
  margin-left: auto;
  padding: .1rem .42rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  color: var(--accent-ink, #3b2a00);
  font-size: .58rem;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.oppe-shell.sidebar-collapsed .nav-soon-badge { display: none; }
.nav-group {
  margin-top: .85rem;
  opacity: .9;
}
.logout-btn {
  background: rgba(255, 255, 255, 0.06) !important;
  color: var(--sidebar-text) !important;
  border: 1px solid var(--sidebar-border);
  box-shadow: none;
}
.logout-btn:hover {
  background: color-mix(in srgb, var(--primary) 28%, transparent) !important;
  box-shadow: 0 8px 18px rgba(30, 79, 215, 0.22);
}
.logout-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.study-header h1 {
  font-size: clamp(1.65rem, 2.4vw, 2.15rem);
  font-weight: 800;
}
.study-header .subtitle {
  font-size: .95rem;
  font-weight: 500;
  max-width: 42rem;
}
.study-breadcrumb {
  font-size: .7rem;
}
.study-section {
  margin-bottom: 1.15rem;
}
.study-section > h2 {
  font-size: .72rem;
}

.subject-tiles {
  gap: 1rem;
}
.subject-tile {
  min-height: 9.4rem;
  padding: 1.15rem 1.15rem 1.05rem;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--subject-accent, var(--primary)) 22%, var(--border));
  box-shadow: var(--shadow);
  transition: transform var(--t-med, 220ms) var(--ease, ease), box-shadow var(--t-med, 220ms) ease, border-color var(--t-fast, 160ms) ease;
}
.subject-tile::after {
  width: 7rem;
  height: 7rem;
  opacity: .9;
}
.subject-tile:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--subject-accent, var(--primary)) 55%, var(--border));
  box-shadow:
    var(--shadow-lg),
    0 0 28px color-mix(in srgb, var(--subject-accent, var(--primary)) 18%, transparent);
}
.subject-tile:focus-visible {
  outline: 2px solid var(--subject-accent, var(--primary));
  outline-offset: 3px;
}
.subject-badge {
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 12px;
  font-weight: 800;
}
.subject-tile strong {
  font-size: 1.06rem;
  font-weight: 750;
  letter-spacing: -.025em;
}
.subject-tile .lang-pill {
  margin-top: .1rem;
}
.progress-bar {
  margin-top: auto;
  height: 8px;
}
.progress-bar > span {
  animation-duration: .75s;
}

.product-card {
  transition: transform var(--t-med, 220ms) var(--ease, ease), box-shadow var(--t-med, 220ms) ease;
}
.product-card.is-oppe:hover {
  box-shadow: var(--shadow-lg), 0 0 32px rgba(240, 192, 20, 0.16);
}
.product-card.is-quiz:hover {
  box-shadow: var(--shadow-lg), 0 0 28px color-mix(in srgb, var(--cyan) 22%, transparent);
}
.product-card.is-notes:hover {
  box-shadow: var(--shadow-lg), 0 0 28px color-mix(in srgb, var(--teal) 22%, transparent);
}

.hub-page {
  max-width: 920px;
}
.hub-page.mock-setup-page {
  max-width: 1100px;
}
.hub-stats .stat-chip {
  min-height: 5.1rem;
}
.hub-modes .mode-card {
  transition: transform var(--t-med, 220ms) var(--ease, ease), box-shadow var(--t-med, 220ms) ease, border-color var(--t-fast, 160ms) ease;
}
.hub-modes .mode-card.is-primary {
  min-height: 8.1rem;
  padding: 1rem 1.05rem .95rem;
  box-shadow: var(--shadow);
}
.hub-modes .mode-card.is-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), 0 0 24px color-mix(in srgb, var(--primary) 16%, transparent);
}
.hub-modes .mode-card[data-mode="practice"]:hover {
  box-shadow: var(--shadow-lg), 0 0 24px color-mix(in srgb, var(--accent) 18%, transparent);
}
.hub-modes .mode-card.is-secondary {
  min-height: 6.4rem;
  opacity: .96;
}
.hub-modes .mode-card .badge-soon {
  margin-top: auto;
  width: fit-content;
}
.hub-modes .mode-card h3 {
  font-size: 1.12rem;
  font-weight: 750;
}
.continue-panel {
  min-height: 4.6rem;
  border-radius: 16px;
  transition: box-shadow var(--t-fast, 160ms) ease;
}
.continue-panel:hover {
  box-shadow: var(--shadow-lg);
}

.filter-toolbar {
  align-items: center;
  padding: .5rem .55rem;
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.filter-toolbar select,
.filter-toolbar input[type="search"] {
  height: 2.35rem;
  border-radius: 10px !important;
  font-size: .82rem;
  transition: border-color var(--t-fast, 160ms) ease, box-shadow var(--t-fast, 160ms) ease;
}
.filter-toolbar select:hover,
.filter-toolbar input[type="search"]:hover {
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border)) !important;
}
.filter-toolbar .btn-cta {
  height: 2.35rem;
  padding: 0 .95rem;
  margin: 0;
}
.q-list {
  overflow: visible;
}
.q-row {
  border-left: 2px solid transparent;
  transition: transform var(--t-fast, 160ms) var(--ease, ease), box-shadow var(--t-fast, 160ms) ease, background var(--t-fast, 160ms) ease, border-color var(--t-fast, 160ms) ease;
}
.q-row:hover,
.q-row:focus-within {
  transform: translateY(-2px);
  border-left-color: var(--primary);
  box-shadow: var(--shadow), 0 0 18px color-mix(in srgb, var(--primary) 12%, transparent);
}
.q-row-main h3 {
  font-size: 1rem;
  font-weight: 700;
}
.q-meta-line { font-size: .78rem; }
.q-bookmark,
.q-reset {
  transition: color var(--t-fast, 160ms) ease, transform var(--t-fast, 160ms) ease, background var(--t-fast, 160ms) ease;
}
.q-bookmark.is-on { transform: scale(1.04); }

.study-page .empty-state,
.empty-state {
  position: relative;
  overflow: hidden;
  max-width: 34rem;
  padding: 1.15rem 1.2rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
  color: var(--muted);
}
.empty-state::before {
  content: "";
  position: absolute;
  right: -1.4rem;
  top: -1.6rem;
  width: 7rem;
  height: 7rem;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 22%, transparent), transparent 70%);
  pointer-events: none;
}
.empty-state .empty-ico {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  margin-bottom: .65rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--primary) 12%, var(--panel-soft));
  color: var(--primary);
}
.empty-state h3 {
  position: relative;
  margin: 0 0 .3rem;
  font-family: var(--display);
  font-size: 1.08rem;
  font-weight: 750;
  color: var(--text);
}
.empty-state p { position: relative; margin: 0; font-size: .9rem; line-height: 1.45; }
.empty-state .btn-cta { position: relative; margin-top: .85rem; }
.coming-soon-card {
  position: relative;
  overflow: hidden;
}
.coming-soon-card::after {
  content: "";
  position: absolute;
  right: -1.2rem;
  top: -1.4rem;
  width: 7rem;
  height: 7rem;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--cyan) 22%, transparent), transparent 70%);
  pointer-events: none;
}

.workspace-main {
  border-radius: 16px;
}
.workspace-nav-links .back-link {
  font-size: .8rem;
}
.content-tabs {
  gap: .2rem;
  padding: .15rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-soft);
  border-bottom: 1px solid var(--border);
}
.content-tabs button {
  border-radius: 9px !important;
  border-bottom: 0 !important;
}
.content-tabs button.active {
  background: var(--panel) !important;
  color: var(--text) !important;
  box-shadow: var(--shadow);
  border-bottom: 0 !important;
}
html[data-theme="dark"] .content-tabs button.active {
  border-bottom: 0 !important;
  box-shadow: 0 0 0 1px rgba(246, 211, 56, 0.28), var(--shadow);
}
.q-nav {
  border-radius: 14px;
}
.q-nav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.public-test-card,
.result-card {
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.public-test-card h4,
.result-card h3 {
  font-family: var(--display);
}
.private-summary-card {
  border-style: solid;
  border-left: 3px solid var(--muted);
  box-shadow: var(--shadow);
}
.private-kicker {
  display: inline-block;
  margin-bottom: .25rem;
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}
.verdict-banner {
  border-radius: 16px;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
}
.verdict-banner strong {
  font-size: 1.28rem;
  font-weight: 800;
}
.code-block {
  border-radius: 12px !important;
  box-shadow: var(--shadow);
}

.btn-cta,
.btn-submit,
.btn-run,
.icon-button,
.filter-toolbar .btn-cta {
  transition: transform var(--t-fast, 160ms) ease, box-shadow var(--t-fast, 160ms) ease, filter var(--t-fast, 160ms) ease, opacity var(--t-fast, 160ms) ease;
}
.btn-cta:hover,
.btn-submit:hover {
  box-shadow: 0 12px 24px rgba(240, 192, 20, 0.32), 0 0 18px rgba(240, 192, 20, 0.16);
}
.btn-run:hover {
  box-shadow: 0 8px 18px color-mix(in srgb, var(--primary) 22%, transparent);
}
.btn-cta:disabled,
.btn-submit:disabled,
.btn-run:disabled,
.icon-button:disabled {
  opacity: .55;
  transform: none;
  cursor: not-allowed;
  box-shadow: none;
}
.icon-button:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border)) !important;
}

.sub-item {
  transition: transform var(--t-fast, 160ms) ease, box-shadow var(--t-fast, 160ms) ease, border-color var(--t-fast, 160ms) ease;
}
.sub-item:hover {
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
}
.topic-chip {
  display: inline-flex;
  padding: .32rem .65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  font-size: .8rem;
  font-weight: 650;
}

html[data-theme="dark"] .subject-tile:hover {
  box-shadow:
    var(--shadow-lg),
    0 0 34px color-mix(in srgb, var(--subject-accent, var(--primary)) 22%, transparent);
}
html[data-theme="dark"] .hub-modes .mode-card.is-primary,
html[data-theme="dark"] .continue-panel,
html[data-theme="dark"] .filter-toolbar,
html[data-theme="dark"] .q-list,
html[data-theme="dark"] .empty-state,
html[data-theme="dark"] .coming-soon-card,
html[data-theme="dark"] .mock-setup-card,
html[data-theme="dark"] .verdict-banner,
html[data-theme="dark"] .stat-chip,
html[data-theme="dark"] .stat-block {
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
html[data-theme="dark"] .empty-state::before {
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 28%, transparent), transparent 70%);
}
html[data-theme="light"] .subject-tile,
html[data-theme="light"] .mode-card,
html[data-theme="light"] .filter-toolbar,
html[data-theme="light"] .q-list,
html[data-theme="light"] .empty-state,
html[data-theme="light"] .continue-panel,
html[data-theme="light"] .stat-chip,
html[data-theme="light"] .workspace-main {
  border-color: color-mix(in srgb, var(--border) 80%, #8ea0c0);
}

/* Prompt 5 — Mock OPPE exam mode (scoped; does not restyle the rest of the app) */
.mock-setup-page {
  max-width: 1100px;
}
.mock-stat-row {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-bottom: 1.25rem;
}
.mock-stat {
  display: flex;
  align-items: center;
  gap: .85rem;
  min-height: 5.2rem;
  padding: 1rem 1.1rem;
}
.mock-stat::after {
  display: none;
}
.mock-stat-ico {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 12px;
  flex: 0 0 auto;
}
.mock-stat-ico .li-icon {
  width: 1.2rem;
  height: 1.2rem;
}
.mock-stat.is-pyq .mock-stat-ico {
  background: color-mix(in srgb, var(--primary) 14%, transparent);
  color: var(--primary);
}
.mock-stat.is-practice .mock-stat-ico {
  background: color-mix(in srgb, var(--green) 14%, transparent);
  color: var(--green);
}
.mock-stat.is-grpa .mock-stat-ico {
  background: color-mix(in srgb, var(--cyan) 14%, transparent);
  color: var(--cyan);
}
.mock-stat.is-filter .mock-stat-ico {
  background: color-mix(in srgb, #e67e22 14%, transparent);
  color: #d35400;
}
.mock-stat strong {
  display: block;
  font-size: 1.55rem;
  line-height: 1.1;
}
.mock-stat span {
  font-size: .8rem;
  font-weight: 600;
}

.mock-builder {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, .72fr);
  gap: 1rem 1.15rem;
  align-items: start;
  margin-bottom: 1.15rem;
}
.mock-setup-card {
  max-width: none;
  margin-bottom: 0;
  padding: 1.2rem 1.3rem 1.35rem;
}
.mock-card-head {
  margin: 0 0 1rem;
}
.mock-card-head h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 750;
  letter-spacing: -.01em;
  color: var(--text);
}
.mock-setup-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .85rem 1rem;
  margin-bottom: 1rem;
}
.mock-setup-grid label {
  font-size: .8rem;
  font-weight: 650;
  color: var(--muted);
}
.mock-setup-grid select {
  width: 100%;
  margin-top: .35rem;
  padding: .55rem .7rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  font-size: .9rem;
}
.mock-setup-grid small {
  display: block;
  margin-top: .3rem;
  font-size: .75rem;
}
.mock-sources {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem 1.15rem;
  margin: 0 0 1rem;
  padding: .85rem 1rem;
  border: 1px solid color-mix(in srgb, var(--primary) 18%, var(--border));
  border-radius: 12px;
  background: color-mix(in srgb, var(--primary) 6%, var(--panel-soft));
}
.mock-sources legend {
  padding: 0 .35rem;
  font-size: .78rem;
  font-weight: 700;
  color: var(--muted);
}
.mock-sources label {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin: 0;
  color: var(--text);
  font-size: .88rem;
  font-weight: 600;
}
.mock-sources input[type="checkbox"] {
  accent-color: var(--primary);
  width: 1rem;
  height: 1rem;
}
.mock-advanced {
  margin: 0;
  border-top: 1px solid var(--border);
  padding-top: .85rem;
}
.mock-advanced summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: .88rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: .55rem;
  flex-wrap: wrap;
}
.mock-advanced summary::-webkit-details-marker {
  display: none;
}
.mock-advanced summary::before {
  content: "▸";
  color: var(--muted);
  font-size: .75rem;
  transition: transform .15s ease;
}
.mock-advanced[open] summary::before {
  transform: rotate(90deg);
}
.mock-advanced-badge {
  margin-left: auto;
  padding: .18rem .55rem;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 24%, transparent);
}
.mock-advanced .mock-setup-grid {
  margin-top: .75rem;
}
.mock-advanced-filters {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: .9rem;
}
.mock-multi-filter {
  display: grid;
  gap: .55rem;
  padding: .85rem .9rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel-soft);
}
.mock-filter-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}
.mock-filter-title {
  display: grid;
  gap: .12rem;
  min-width: 0;
}
.mock-filter-actions {
  display: flex;
  align-items: center;
  gap: .45rem;
  flex-wrap: wrap;
}
.mock-filter-label {
  font-size: .74rem;
  font-weight: 750;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.mock-filter-hint {
  font-size: .74rem;
  font-weight: 600;
  color: var(--muted);
}
.mock-chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}
.mock-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  margin: 0;
  padding: .42rem .72rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: .8rem;
  font-weight: 650;
  line-height: 1.25;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, color .15s ease, box-shadow .15s ease;
  user-select: none;
}
.mock-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}
.mock-chip span {
  display: inline;
}
.mock-chip:hover {
  border-color: color-mix(in srgb, var(--primary) 42%, var(--border));
  background: color-mix(in srgb, var(--primary) 7%, var(--panel));
}
.mock-chip.is-on,
.mock-chip:has(input:checked) {
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border));
  background: color-mix(in srgb, var(--primary) 14%, var(--panel));
  color: var(--primary);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 18%, transparent);
}
.mock-chip:focus-within {
  outline: 2px solid color-mix(in srgb, var(--primary) 45%, transparent);
  outline-offset: 2px;
}
.mock-filter-toggle {
  margin: 0;
  padding: .28rem .62rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: .74rem;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
}
.mock-filter-toggle:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--primary) 42%, var(--border));
  background: color-mix(in srgb, var(--primary) 8%, var(--panel));
  color: var(--primary);
}
.mock-filter-toggle:disabled {
  opacity: .45;
  cursor: not-allowed;
}
.mock-filter-clear {
  justify-self: start;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  color: var(--primary);
  font: inherit;
  font-size: .8rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: .15em;
}
.mock-filter-clear:hover {
  color: color-mix(in srgb, var(--primary) 80%, var(--text));
}
.mock-filter-dropdown {
  position: relative;
  max-width: 22rem;
}
.mock-filter-dropdown summary {
  list-style: none;
  cursor: pointer;
  padding: .45rem .65rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-soft);
  color: var(--text);
  font-size: .84rem;
}
.mock-filter-dropdown summary::-webkit-details-marker {
  display: none;
}
.mock-filter-dropdown summary::after {
  content: "▾";
  float: right;
  color: var(--muted);
}
.mock-filter-dropdown[open] summary {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom-color: transparent;
}
.mock-filter-options {
  display: grid;
  gap: .15rem;
  max-height: 12rem;
  overflow: auto;
  padding: .45rem;
  border: 1px solid var(--border);
  border-top: 0;
  border-radius: 0 0 10px 10px;
  background: var(--panel-soft);
}
.mock-filter-options.is-panel {
  border-top: 1px solid var(--border);
  border-radius: 10px;
  max-height: 14rem;
  background: var(--panel);
}
.mock-filter-option {
  display: flex;
  align-items: flex-start;
  gap: .45rem;
  margin: 0;
  padding: .4rem .45rem;
  border-radius: 8px;
  color: var(--text);
  font-size: .82rem;
  cursor: pointer;
}
.mock-filter-option:hover {
  background: color-mix(in srgb, var(--primary) 8%, transparent);
}
.mock-filter-option input {
  margin: .15rem 0 0;
  flex: 0 0 auto;
  accent-color: var(--primary);
}
.mock-filter-option span {
  line-height: 1.35;
}

.mock-summary-aside {
  position: sticky;
  top: 1rem;
}
.mock-summary-card {
  max-width: none;
  padding: 1.2rem 1.25rem 1.3rem;
  border: 1px solid color-mix(in srgb, var(--accent) 32%, var(--border));
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .15rem;
}
.mock-summary-card .mode-kicker {
  margin: 0 0 .15rem;
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 750;
}
.mock-summary-card h3 {
  margin: 0 0 .35rem;
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
}
.mock-summary-card p,
.mock-summary-line {
  margin: .15rem 0;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.45;
}
.mock-summary-meta,
.mock-summary-duration {
  margin: .55rem 0 0;
  padding-top: .55rem;
  border-top: 1px solid var(--border);
  font-size: .86rem;
  color: var(--text);
}
.mock-summary-label {
  display: block;
  margin-bottom: .35rem;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--muted);
}
.mock-summary-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}
.mock-summary-chip {
  display: inline-flex;
  max-width: 100%;
  padding: .28rem .55rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--primary) 22%, var(--border));
  background: color-mix(in srgb, var(--primary) 8%, var(--panel-soft));
  color: var(--text);
  font-size: .74rem;
  font-weight: 650;
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mock-summary-chip.is-more {
  color: var(--primary);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
}
.mock-more {
  color: var(--primary);
  font-weight: 650;
  white-space: nowrap;
}
.mock-start-form {
  margin-top: 1.1rem;
}
.mock-start-btn {
  display: inline-flex;
  width: 100%;
  justify-content: center;
  align-items: center;
  gap: .45rem;
  padding: .8rem 1rem;
  font-size: .95rem;
  font-weight: 750;
  border-radius: 12px;
}
.mock-start-btn .li-icon {
  width: 1rem;
  height: 1rem;
}

.mock-about {
  display: flex;
  gap: .85rem;
  align-items: flex-start;
  padding: 1rem 1.15rem;
  margin: 0 0 1.5rem;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--primary) 22%, var(--border));
  background: color-mix(in srgb, var(--primary) 7%, var(--panel));
}
.mock-about-ico {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  flex: 0 0 auto;
  background: color-mix(in srgb, var(--primary) 16%, transparent);
  color: var(--primary);
}
.mock-about-ico .li-icon {
  width: 1.05rem;
  height: 1.05rem;
}
.mock-about strong {
  display: block;
  margin-bottom: .2rem;
  font-size: .92rem;
  color: var(--text);
}
.mock-about p {
  margin: 0;
  font-size: .86rem;
  line-height: 1.5;
  color: var(--muted);
}
@media (max-width: 960px) {
  .mock-builder {
    grid-template-columns: 1fr;
  }
  .mock-summary-aside {
    position: static;
  }
  .mock-stat-row {
    grid-template-columns: 1fr;
  }
  .mock-advanced-filters {
    grid-template-columns: 1fr;
  }
}
.mock-exam-page .mock-exam-header {
  align-items: flex-start;
  gap: .85rem 1.1rem;
  padding-bottom: .85rem;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 32%, var(--border));
}
.mock-exam-page .hero-kicker {
  letter-spacing: .16em;
  color: var(--accent);
}
.mock-exam-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: .5rem;
}
.mock-timer-card {
  min-width: 7.6rem;
  padding: .42rem .72rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--border));
  background: color-mix(in srgb, var(--accent) 10%, var(--panel-soft));
  text-align: right;
}
.mock-timer-card small {
  display: block;
  color: var(--muted);
  font-size: .68rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.mock-timer-card strong {
  display: block;
  font-variant-numeric: tabular-nums;
  font-size: 1.12rem;
  letter-spacing: .05em;
  color: var(--text);
}
.mock-exam-page .mock-workspace-layout {
  flex: 1 1 auto;
  min-height: 0;
  margin-top: .35rem;
}
.mock-exam-page .mock-q-nav .palette-item {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 1;
  padding: 0 !important;
  border-radius: 8px !important;
  border: 1px solid transparent !important;
  background: var(--panel-soft) !important;
  color: var(--muted) !important;
  font-size: .72rem;
  font-weight: 700;
  cursor: pointer;
}
.mock-exam-page .mock-q-nav .palette-item:hover {
  transform: translateY(-1px);
}
.mock-exam-page .palette-item.submitted {
  color: var(--green) !important;
  border-color: color-mix(in srgb, var(--green) 45%, transparent) !important;
  background: color-mix(in srgb, var(--green) 14%, var(--panel-soft)) !important;
}
.mock-exam-page .palette-item.answered:not(.submitted) {
  border-color: color-mix(in srgb, var(--green) 40%, var(--border)) !important;
}
.mock-exam-page .palette-item.marked {
  border-color: color-mix(in srgb, var(--purple) 55%, var(--border)) !important;
  background: color-mix(in srgb, var(--purple), transparent 88%) !important;
}
.mock-exam-page .palette-item.unanswered {
  opacity: .88;
}
.mock-exam-page .palette-item.current {
  background: var(--accent) !important;
  color: var(--accent-ink) !important;
  border-color: var(--accent) !important;
  outline: none;
}
.mock-exam-page #mock-source-label {
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .7rem;
  color: var(--muted);
}
.mock-exam-page .workspace-nav-links .prev-next {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem;
  margin-top: .35rem;
}
.mock-exam-page .workspace-nav-links .back-link {
  background: none;
  border: 0;
  padding: 0;
  color: var(--primary);
  cursor: pointer;
  font: inherit;
}
.mock-exam-page .workspace-nav-links .back-link:hover {
  text-decoration: underline;
}
.mock-exam-page .editor-pane .editor-frame,
.mock-exam-page .editor-pane .CodeMirror {
  min-height: 0;
}
.mock-dialog {
  width: min(420px, calc(100vw - 2rem));
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow-lg, var(--shadow));
}
.mock-dialog::backdrop {
  background: rgba(10, 16, 32, 0.46);
}
.mock-dialog h3 {
  margin: 0 0 .4rem;
}
.mock-dialog p {
  margin: 0 0 1rem;
  color: var(--muted);
}
.mock-dialog-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: .5rem;
}
html[data-theme="dark"] .mock-exam-page .mock-exam-header {
  border-bottom-color: color-mix(in srgb, var(--accent) 22%, var(--border));
}
html[data-theme="dark"] .mock-timer-card {
  background: color-mix(in srgb, var(--accent) 8%, var(--panel));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
html[data-theme="dark"] .mock-summary-card,
html[data-theme="dark"] .mock-dialog,
html[data-theme="dark"] .mock-about {
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 42%), var(--panel);
}
html[data-theme="dark"] .mock-multi-filter {
  background: color-mix(in srgb, var(--panel) 88%, #000);
  border-color: color-mix(in srgb, var(--border) 80%, #fff);
}
html[data-theme="dark"] .mock-chip {
  background: var(--panel);
}
html[data-theme="dark"] .mock-filter-toggle {
  background: var(--panel);
  border-color: color-mix(in srgb, var(--border) 80%, #fff);
}
html[data-theme="dark"] .mock-chip.is-on,
html[data-theme="dark"] .mock-chip:has(input:checked) {
  background: color-mix(in srgb, var(--primary) 18%, var(--panel));
}
html[data-theme="dark"] .mock-sources {
  background: color-mix(in srgb, var(--primary) 10%, var(--panel));
}
html[data-theme="dark"] .mock-stat.is-filter .mock-stat-ico {
  color: #f0a060;
  background: color-mix(in srgb, #e67e22 18%, transparent);
}
html[data-theme="light"] .mock-exam-page .mock-exam-header,
html[data-theme="light"] .mock-timer-card,
html[data-theme="light"] .mock-summary-card,
html[data-theme="light"] .mock-exam-page .q-nav,
html[data-theme="light"] .mock-exam-page .workspace-main {
  border-color: color-mix(in srgb, var(--border) 72%, #8ea0c0);
}
@media (max-width: 1100px) {
  .mock-exam-tools { justify-content: flex-start; }
}

.need-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: .75rem;
}
.need-card {
  padding: 1rem 1.05rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.need-card h3 {
  margin: .15rem 0 .35rem;
}
.need-card p {
  margin: .15rem 0;
  color: var(--muted);
}
.need-card .btn-cta {
  margin-top: .75rem;
}
.need-card.is-strong {
  border-color: color-mix(in srgb, var(--green) 35%, var(--border));
}
.bookmark-shortcut {
  margin-bottom: 1rem;
}
html[data-theme="dark"] .need-card {
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 42%), var(--panel);
}

/* Protect editor isolation if page surfaces change */
.CodeMirror pre.CodeMirror-line,
.CodeMirror pre.CodeMirror-line-like {
  background: transparent !important;
  border: 0 !important;
  padding: 0 4px 0 0 !important;
  box-shadow: none !important;
  white-space: pre !important;
  color: inherit !important;
}

@media (prefers-reduced-motion: reduce) {
  .li-page > *,
  .subject-tile,
  .mode-card,
  .product-card,
  .q-row,
  .progress-bar > span,
  .btn-cta,
  .btn-submit {
    animation: none !important;
    transition: none !important;
  }
  .subject-tile:hover,
  .mode-card:hover,
  .q-row:hover,
  .product-card:hover {
    transform: none;
  }
}

@media (max-width: 1366px) {
  .study-page .oppe-main { padding: .9rem 1.05rem 1.2rem; }
  .hub-page, .q-list, .filter-toolbar { max-width: 100%; }
}
@media (max-width: 900px) {
  .filter-toolbar .btn-cta { width: auto; }
}

.auth-google { margin: 0 0 1.05rem; }
.auth-google-btn { width: 100%; }
.auth-divider {
  color: var(--muted);
  letter-spacing: .08em;
}
.auth-config-note { margin: 0 0 1rem; }

/* Dashboard home — refinement only, scoped */
.dash-home {
  max-width: none;
  padding-bottom: 1.5rem;
}
.dash-layout {
  display: grid;
  grid-template-columns: minmax(0, 920px) minmax(240px, 280px);
  gap: 1.15rem;
  align-items: start;
  justify-content: start;
}
.dash-main { min-width: 0; }
.dash-home .product-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.15rem;
}
.dash-home .product-card {
  padding: 1.25rem 1.3rem 1.15rem;
  min-height: 11.25rem;
}
.dash-home .product-ico {
  display: grid;
  place-items: center;
  width: 2.55rem;
  height: 2.55rem;
  margin-bottom: .15rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--primary) 22%, var(--border));
  background: color-mix(in srgb, var(--primary) 10%, var(--panel));
  color: var(--primary);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 18%, transparent);
}
.dash-home .product-ico .li-icon {
  width: 1.2rem;
  height: 1.2rem;
}
.dash-home .product-card.is-oppe .product-ico {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  background: color-mix(in srgb, var(--accent) 16%, var(--panel));
  color: var(--accent-ink, #3b2a00);
}
html[data-theme="dark"] .dash-home .product-card.is-oppe .product-ico {
  color: var(--accent);
  box-shadow: 0 0 16px color-mix(in srgb, var(--accent) 18%, transparent);
}
.dash-home .product-card.is-quiz .product-ico {
  border-color: color-mix(in srgb, var(--cyan, var(--primary)) 36%, var(--border));
  background: color-mix(in srgb, var(--cyan, var(--primary)) 12%, var(--panel));
  color: var(--cyan, var(--primary));
}
.dash-home .product-card.is-grade {
  border: 1px solid color-mix(in srgb, var(--purple, #7c6cf0) 35%, var(--border));
  border-top: 3px solid var(--purple, #7c6cf0);
}
.dash-home .product-card.is-grade .product-ico {
  border-color: color-mix(in srgb, var(--purple, #7c6cf0) 36%, var(--border));
  background: color-mix(in srgb, var(--purple, #7c6cf0) 12%, var(--panel));
  color: var(--purple, #7c6cf0);
}
.dash-home .product-card.is-notes {
  border: 1px solid color-mix(in srgb, var(--teal, #0b8f8a) 35%, var(--border));
  border-top: 3px solid var(--teal, #0b8f8a);
}
.dash-home .product-card.is-notes .product-ico {
  border-color: color-mix(in srgb, var(--teal, #0b8f8a) 36%, var(--border));
  background: color-mix(in srgb, var(--teal, #0b8f8a) 12%, var(--panel));
  color: var(--teal, #0b8f8a);
}
.dash-home .product-card.is-ask {
  border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border));
  border-top: 3px solid var(--primary);
}
.dash-home .product-card.is-ask .product-ico {
  border-color: color-mix(in srgb, var(--primary) 32%, var(--border));
  background: color-mix(in srgb, var(--primary) 10%, var(--panel));
  color: var(--primary);
}
.dash-home .product-card.is-soon {
  border-style: dashed;
  background: var(--panel-soft);
  box-shadow: none;
  cursor: default;
}
.dash-home .product-card.is-soon:hover {
  transform: none;
  border-color: var(--border);
  box-shadow: none;
}
.dash-home .product-card.is-soon .badge-soon {
  margin-bottom: .1rem;
}
.dash-home .product-card.is-soon .card-cta {
  color: var(--muted);
}
.dash-home .product-card:hover .product-ico {
  transform: translateY(-1px);
}
.dash-home .product-ico {
  transition: transform var(--t-fast, 160ms) ease;
}
.dash-home .product-card p {
  max-width: 34ch;
}
.dash-home .card-cta {
  margin-top: auto;
  padding-top: .45rem;
}
.dash-home .dash-continue {
  margin: 0 0 1.05rem;
}
.dash-home .dash-continue h2,
.dash-home .dash-access h2 {
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 .55rem;
}
.dash-home a.continue-panel {
  display: flex;
  align-items: center;
  gap: .9rem;
  min-height: 4.4rem;
  padding: .9rem 1rem;
  text-decoration: none;
  color: inherit !important;
  border-radius: 16px;
}
.dash-home a.continue-panel h3 {
  margin: 0 0 .15rem;
  font-size: 1.02rem;
  font-family: var(--display);
}
.dash-home a.continue-panel p {
  margin: 0;
  color: var(--muted);
  font-size: .86rem;
}
.dash-home a.continue-panel .btn-cta {
  margin-left: auto;
  flex-shrink: 0;
  white-space: nowrap;
}
.dash-home .continue-ico {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  flex-shrink: 0;
  border-radius: 11px;
  background: color-mix(in srgb, var(--accent) 16%, var(--panel));
  color: var(--accent-ink, #3b2a00);
  border: 1px solid color-mix(in srgb, var(--accent) 32%, var(--border));
}
html[data-theme="dark"] .dash-home .continue-ico {
  color: var(--accent);
}
.dash-home .continue-ico .li-icon {
  width: 1.05rem;
  height: 1.05rem;
}
.dash-home .dash-stats {
  margin: 0 0 1.25rem;
}
.dash-home .stat-chip {
  padding: .9rem 1rem;
}
.dash-home .stat-chip strong {
  font-family: var(--display);
  font-size: 1.45rem;
  letter-spacing: -.04em;
  line-height: 1.1;
}
.dash-home .stat-chip span {
  font-size: .75rem;
  font-weight: 650;
  letter-spacing: .02em;
  color: var(--muted);
}
.dash-home .access-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
}
.dash-home .access-card {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  min-height: 8.4rem;
  padding: .95rem 1rem .9rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 88%, #fff), var(--panel));
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit !important;
  transition: transform var(--t-med, 220ms) var(--ease, ease), box-shadow var(--t-med, 220ms) ease, border-color var(--t-fast, 160ms) ease;
}
.dash-home .access-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--primary) 32%, var(--border));
  box-shadow: var(--shadow-lg);
}
.dash-home .access-card:hover .access-cta .li-icon {
  transform: translateX(3px);
}
.dash-home .access-ico {
  display: grid;
  place-items: center;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 10px;
  margin-bottom: .15rem;
  border: 1px solid var(--border);
}
.dash-home .access-ico .li-icon {
  width: 1.05rem;
  height: 1.05rem;
}
.dash-home .access-card:nth-child(1) .access-ico {
  color: var(--purple, #7c6cf0);
  background: color-mix(in srgb, var(--purple, #7c6cf0) 12%, var(--panel));
  border-color: color-mix(in srgb, var(--purple, #7c6cf0) 28%, var(--border));
}
.dash-home .access-card:nth-child(2) .access-ico {
  color: var(--cyan, var(--primary));
  background: color-mix(in srgb, var(--cyan, var(--primary)) 12%, var(--panel));
  border-color: color-mix(in srgb, var(--cyan, var(--primary)) 28%, var(--border));
}
.dash-home .access-card:nth-child(3) .access-ico {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, var(--panel));
  border-color: color-mix(in srgb, var(--accent) 32%, var(--border));
}
.dash-home .access-card h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.02rem;
  font-weight: 750;
  letter-spacing: -.02em;
}
.dash-home .access-card p {
  margin: 0;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.45;
}
.dash-home .access-cta {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  margin-top: auto;
  padding-top: .35rem;
  font-size: .78rem;
  font-weight: 750;
  color: var(--primary);
}
.dash-home .access-cta .li-icon {
  width: .9rem;
  height: .9rem;
  transition: transform .2s ease;
}
.dash-home a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 16px;
}
html[data-theme="dark"] .dash-home .access-card {
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 42%), var(--panel);
}
html[data-theme="dark"] .dash-home .access-card:hover {
  box-shadow: var(--shadow-lg), 0 0 22px color-mix(in srgb, var(--primary) 14%, transparent);
}

.dash-rail { min-width: 0; }
.trust-card {
  position: sticky;
  top: .35rem;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.15rem 1.15rem 1.05rem;
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--green) 28%, var(--border));
  background:
    linear-gradient(165deg, color-mix(in srgb, var(--green) 10%, var(--panel)) 0%, var(--panel) 48%),
    var(--panel);
  box-shadow: var(--shadow);
}
.trust-ico {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 12px;
  color: var(--green);
  background: color-mix(in srgb, var(--green) 14%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--green) 32%, var(--border));
}
.trust-ico .li-icon { width: 1.15rem; height: 1.15rem; }
.trust-kicker {
  margin: 0;
  color: var(--green);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.trust-card h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.18rem;
  font-weight: 750;
  letter-spacing: -.035em;
  line-height: 1.25;
}
.trust-copy {
  margin: 0;
  color: var(--muted);
  font-size: .84rem;
  line-height: 1.5;
}
.trust-youtube {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin-top: .35rem;
  padding: .7rem .75rem;
  border-radius: 12px;
  text-decoration: none !important;
  color: inherit !important;
  border: 1px solid color-mix(in srgb, #ff0000 28%, var(--border));
  background: color-mix(in srgb, #ff0000 8%, var(--panel));
  transition: transform var(--t-fast, 160ms) ease, box-shadow var(--t-med, 220ms) ease;
}
.trust-youtube:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.yt-ico {
  display: grid;
  place-items: center;
  width: 2.15rem;
  height: 2.15rem;
  flex-shrink: 0;
  border-radius: 10px;
  color: #fff;
  background: #ff0000;
}
.yt-ico .li-icon { width: 1.15rem; height: 1.15rem; }
.trust-youtube strong {
  display: block;
  font-size: .92rem;
  font-weight: 750;
}
.trust-youtube small {
  display: block;
  color: var(--muted);
  font-size: .75rem;
}
.trust-telegram {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin-top: .35rem;
  padding: .7rem .75rem;
  border-radius: 12px;
  text-decoration: none !important;
  color: inherit !important;
  border: 1px solid color-mix(in srgb, #229ed9 28%, var(--border));
  background: color-mix(in srgb, #229ed9 8%, var(--panel));
  transition: transform var(--t-fast, 160ms) ease, box-shadow var(--t-med, 220ms) ease;
}
.trust-telegram:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.tg-ico {
  display: grid;
  place-items: center;
  width: 2.15rem;
  height: 2.15rem;
  flex-shrink: 0;
  border-radius: 10px;
  color: #fff;
  background: #229ed9;
}
.tg-ico .li-icon { width: 1.15rem; height: 1.15rem; }
.trust-telegram strong {
  display: block;
  font-size: .92rem;
  font-weight: 750;
  line-height: 1.3;
}
.trust-telegram small {
  display: block;
  color: var(--muted);
  font-size: .75rem;
}
html[data-theme="dark"] .trust-card {
  background: linear-gradient(180deg, rgba(61, 220, 138, .08), transparent 46%), var(--panel);
}
html[data-theme="dark"] .trust-youtube {
  background: color-mix(in srgb, #ff0000 16%, var(--panel));
}
html[data-theme="dark"] .trust-telegram {
  background: color-mix(in srgb, #229ed9 16%, var(--panel));
}

@media (max-width: 1100px) {
  .dash-layout { grid-template-columns: 1fr; }
  .dash-main { max-width: none; }
  .trust-card { position: static; }
}

@media (max-width: 900px) {
  .dash-home .access-grid { grid-template-columns: 1fr; }
  .dash-home a.continue-panel { flex-wrap: wrap; }
  .dash-home a.continue-panel .btn-cta { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .dash-home .product-card:hover,
  .dash-home .access-card:hover,
  .dash-home .product-ico {
    transform: none;
  }
  .dash-home .access-card,
  .dash-home .product-ico,
  .dash-home .access-cta .li-icon {
    transition: none !important;
  }
}

/* Notes section */
.notes-page {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 1rem;
  align-items: stretch;
  min-height: 28rem;
}
.notes-list-pane,
.notes-editor-pane {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.notes-list-pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.notes-list-toolbar {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: .85rem .85rem .65rem;
  border-bottom: 1px solid var(--border);
}
.notes-list-toolbar input[type="search"] {
  width: 100%;
  height: 2.35rem;
  padding: 0 .75rem;
  font-size: .86rem;
}
.notes-new {
  width: 100%;
  gap: .35rem;
}
.notes-list {
  list-style: none;
  margin: 0;
  padding: .45rem;
  overflow: auto;
  flex: 1;
}
.notes-item {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .18rem;
  text-align: left;
  padding: .7rem .75rem;
  margin-bottom: .35rem;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}
.notes-item:hover {
  background: var(--panel-soft);
}
.notes-item.is-active {
  border-color: color-mix(in srgb, var(--teal) 40%, var(--border));
  background: color-mix(in srgb, var(--teal) 10%, var(--panel));
}
.notes-item strong {
  font-size: .92rem;
  font-weight: 750;
  line-height: 1.3;
}
.notes-item span,
.notes-item small {
  color: var(--muted);
  font-size: .78rem;
  line-height: 1.35;
}
.notes-empty-list {
  margin: 0;
  padding: .85rem 1rem 1.1rem;
  color: var(--muted);
  font-size: .84rem;
}
.notes-editor-pane {
  display: flex;
  min-height: 28rem;
  padding: 1rem 1.1rem 1.1rem;
}
.notes-editor {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  gap: .7rem;
}
.notes-editor[hidden],
.notes-editor-empty[hidden],
.notes-empty-list[hidden] {
  display: none !important;
}
.notes-editor-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}
.notes-save-state {
  margin: 0;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
}
.notes-delete {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .35rem .6rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  color: var(--red, #d1243a);
  font-size: .8rem;
  font-weight: 700;
  cursor: pointer;
}
.notes-delete:hover {
  border-color: color-mix(in srgb, var(--red, #d1243a) 40%, var(--border));
  background: color-mix(in srgb, var(--red, #d1243a) 8%, var(--panel));
}
.notes-delete .li-icon {
  width: 1rem;
  height: 1rem;
}
#note-title {
  width: 100%;
  height: 2.7rem;
  padding: 0 .85rem;
  font-size: 1.15rem;
  font-weight: 750;
}
#note-body {
  width: 100%;
  flex: 1;
  min-height: 16rem;
  padding: .85rem;
  font-family: inherit;
  font-size: .95rem;
  line-height: 1.55;
  resize: vertical;
}
.notes-editor-empty {
  display: grid;
  place-content: center;
  justify-items: center;
  text-align: center;
  gap: .45rem;
  width: 100%;
  padding: 2rem 1rem;
}
.notes-editor-empty .empty-ico {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: .25rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--teal) 12%, var(--panel));
  color: var(--teal);
}
.notes-editor-empty h2 {
  margin: 0;
  font-size: 1.25rem;
}
.notes-editor-empty p {
  margin: 0 0 .55rem;
  max-width: 36ch;
  color: var(--muted);
}
.notes-editor-empty .btn-cta {
  gap: .35rem;
}
html[data-theme="dark"] .notes-item.is-active {
  background: color-mix(in srgb, var(--teal) 16%, var(--panel));
}

body.oppe-landing main {
  max-width: none;
  margin: 0;
  padding: 0;
}
.landing-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 4rem;
}
.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}
.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: inherit;
  text-decoration: none;
  font-family: var(--display);
  font-weight: 800;
}
.landing-nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1rem;
}
.landing-nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 650;
}
.landing-nav-links a:hover { color: var(--text); }
.landing-signup { padding: .55rem .9rem; font-size: .92rem; }
.landing-hero {
  padding: .5rem 0 1.5rem;
  max-width: 46rem;
}
.landing-hero h1 {
  margin: .35rem 0 .75rem;
  font-family: var(--display);
  font-size: clamp(1.85rem, 4vw, 2.8rem);
  letter-spacing: -.04em;
  line-height: 1.12;
}
.landing-lead {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.55;
}
.landing-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
}
.landing-products h2 {
  margin: 0 0 1rem;
  font-family: var(--display);
}
.error-page .landing-hero { padding-top: 2rem; }

@media (max-width: 720px) {
  .landing-nav { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 900px) {
  .notes-page {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .notes-list-pane { max-height: 16rem; }
  .notes-editor-pane { min-height: 22rem; }
}