/* ============================================================
   university.css — public /university/ catalog page (Track B2)
   Ground truth for chapter accents + card look:
   trendtrader-app/src/styles/university.css (VideoCard/Thumbnail),
   trendtrader-app/src/components/university/{shared,VideoCard}.tsx
   Tokens come from this site's styles.css :root — colors/fonts are
   NOT hardcoded except the 4 chapter accent hexes below, copied
   verbatim from the app so the accent system matches pixel-for-pixel.

   CSS class contract (locked by the plan, B1 emits exactly these):
   .uni .uni__hero .uni__counts .uni__latest .uni-chapter
   .uni-chapter__head .uni-grid .uni-card .uni-card--soon
   .uni-card__thumb[data-accent=blue|cyan|amber|green] .uni-card__title
   .uni-card__meta .uni-badge--diff .uni-badge--dur .uni-badge--new
   .uni-reads .uni-read .uni-lesson .uni-lesson__cta .uni-lesson__more
   ============================================================ */

/* Chapter accent system — hexes copied verbatim from
   trendtrader-app/src/styles/university.css (tokens.css --primary/--accent/
   --warning/--success). Unscoped attribute selector (mirrors the app source)
   so any element carrying data-accent picks up the right --u-accent. */
[data-accent="blue"]  { --u-accent: #1193D6; }
[data-accent="cyan"]  { --u-accent: #29CDF0; }
[data-accent="amber"] { --u-accent: #F59E0B; }
[data-accent="green"] { --u-accent: #22C55E; }

/* ============ Page root ============ */
.uni {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 150px 24px 110px;
}

/* ============ Hero ============ */
.uni__hero {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.uni__hero > span:first-child {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 16px;
}

.uni__hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 18px;
}

.uni__hero p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto;
}

/* ============ Counts strip ============ */
.uni__counts {
  display: flex;
  max-width: 760px;
  margin: 40px auto 64px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  overflow: hidden;
  background: linear-gradient(180deg, var(--card), var(--surface));
  box-shadow: var(--shadow-card);
}

.uni__counts > div {
  flex: 1;
  text-align: center;
  padding: 22px 20px;
  border-right: 1px solid var(--line);
}

.uni__counts > div:last-child { border-right: none; }

.uni__counts strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.uni__counts span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ============ Latest lessons ============ */
.uni__latest { margin-bottom: 64px; }

.uni__latest h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  margin-bottom: 22px;
}

/* ============ Chapters ============ */
.uni-chapter { margin-bottom: 64px; scroll-margin-top: 100px; }

.uni-chapter__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.uni-chapter__head span:first-child {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--u-accent, var(--accent-2));
  margin-bottom: 4px;
}

.uni-chapter__head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}

.uni-chapter__head > span:last-child {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--muted);
  white-space: nowrap;
}

/* ============ Card grid — 4 cols desktop / 2 tablet / 1 mobile ============ */
.uni-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

@media (max-width: 900px) {
  .uni-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
}

@media (max-width: 560px) {
  .uni-grid { grid-template-columns: 1fr; }
}

/* ============ Card ============ */
.uni-card {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.uni-card:hover { transform: translateY(-3px); }

.uni-card--soon { opacity: 0.55; cursor: not-allowed; }
.uni-card--soon:hover { transform: none; }

.uni-card__thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 30% 35%, color-mix(in srgb, var(--u-accent, var(--accent-2)) 20%, transparent) 0%, transparent 65%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 20%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 25%),
    linear-gradient(135deg, var(--bg) 0%, var(--card-2) 60%, color-mix(in srgb, var(--u-accent, var(--accent-2)) 14%, transparent) 100%);
  transition: border-color 0.2s ease;
}

.uni-card:not(.uni-card--soon):hover .uni-card__thumb {
  border-color: color-mix(in srgb, var(--u-accent, var(--accent-2)) 45%, transparent);
}

/* Play glyph — circle (::before) + triangle (::after), accent-colored */
.uni-card__thumb::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: rgba(6, 12, 24, 0.82);
  border: 1.5px solid color-mix(in srgb, var(--u-accent, var(--accent-2)) 40%, transparent);
  box-shadow: 0 0 26px color-mix(in srgb, var(--u-accent, var(--accent-2)) 25%, transparent);
}

.uni-card__thumb::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 8px 0 8px 13px;
  border-color: transparent transparent transparent var(--u-accent, var(--accent-2));
  transform: translate(-42%, -50%);
}

.uni-card--soon .uni-card__thumb::before,
.uni-card--soon .uni-card__thumb::after { opacity: 0.5; }

.uni-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.uni-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.4;
  color: var(--text);
  transition: color 0.15s ease;
}

.uni-card:not(.uni-card--soon):hover .uni-card__title { color: var(--accent-2); }

/* ============ Badges ============ */
.uni-badge--diff {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 3px 8px;
  border-radius: 5px;
  white-space: nowrap;
}

.uni-badge--diff[data-level="beginner"] {
  background: rgba(74, 222, 128, 0.1);
  color: #4ade80;
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.uni-badge--diff[data-level="intermediate"] {
  background: rgba(56, 189, 248, 0.1);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.uni-badge--diff[data-level="advanced"] {
  background: rgba(251, 191, 36, 0.1);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.25);
}

.uni-badge--new {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 5px;
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent-2);
  border: 1px solid rgba(34, 211, 238, 0.25);
  white-space: nowrap;
}

/* Duration badge — inline chip by default (lesson-page meta row: difficulty +
   duration + NEW, all in one flex row). Nested inside .uni-card__thumb
   (position:relative) it becomes an overlay on the bottom-right corner of the
   video still, same placement as the app's VideoCard duration chip. */
.uni-badge--dur {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--text);
  background: rgba(4, 9, 18, 0.85);
  padding: 2px 7px;
  border-radius: 4px;
  white-space: nowrap;
}

.uni-card__thumb .uni-badge--dur {
  position: absolute;
  bottom: 8px;
  right: 8px;
  z-index: 1;
  backdrop-filter: blur(4px);
}

.uni-badge--dur[data-state="coming-soon"] {
  font-family: var(--font-body);
  color: var(--muted);
}

/* ============ Quick reads ============ */
.uni-reads { margin-bottom: 40px; }

.uni-reads h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.uni-read {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 10px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.uni-read:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
}

.uni-read span:first-child {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.uni-read h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 4px;
}

.uni-read p {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.5;
}

/* ============ Lesson page ============ */
.uni-lesson { max-width: 760px; margin: 0 auto; }

.uni-lesson nav {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 18px;
}

.uni-lesson nav a { color: var(--muted); }
.uni-lesson nav a:hover { color: var(--text); }

.uni-lesson h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.uni-lesson .uni-card__thumb {
  margin-bottom: 22px;
  cursor: default;
}

.uni-lesson .uni-card__thumb[data-size="lg"] {
  border-radius: 14px;
}

.uni-lesson .uni-card__meta { margin-bottom: 18px; }

.uni-lesson > p {
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.65;
  margin-bottom: 32px;
}

.uni-lesson__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: 999px;
  background: var(--grad);
  color: #06101f;
  margin-bottom: 48px;
  transition: transform 0.2s cubic-bezier(.2,.9,.3,1.4), box-shadow 0.2s;
}

.uni-lesson__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -8px rgba(34, 211, 238, 0.4);
}

.uni-lesson__more {
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.uni-lesson__more h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.uni-lesson__more .uni-grid {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
  .uni-lesson__more .uni-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .uni-lesson__more .uni-grid { grid-template-columns: 1fr; }
  .uni { padding-top: 130px; }
  .uni__counts { flex-direction: column; }
  .uni__counts > div { border-right: none; border-bottom: 1px solid var(--line); }
  .uni__counts > div:last-child { border-bottom: none; }
}

/* styles.css already collapses transition-duration to ~0 sitewide under
   reduced motion, but a transform with no transition still SNAPS instead of
   animating — same fix as styles.css's own `.mock:hover, .trust__mbg:hover
   { transform: none; }` reduced-motion override, applied to this file's two
   hover transforms. */
@media (prefers-reduced-motion: reduce) {
  .uni-card:hover { transform: none; }
  .uni-lesson__cta:hover { transform: none; }
}