/* BDAI TEAM — Notion-like: warm gray, soft borders, blue accent. No purple. */
:root {
  --lt-bg: #ffffff;
  --lt-bg-soft: #f7f6f3;
  --lt-bg-hover: #efeee9;
  --lt-ink: #37352f;
  --lt-muted: #787774;
  --lt-faint: #9b9a97;
  --lt-line: #e9e9e7;
  --lt-line-strong: #d3d1cb;
  --lt-blue: #2383e2;
  --lt-blue-soft: #e7f3ff;
  --lt-blue-hover: #1a6fc2;
  --lt-radius: 8px;
  --lt-radius-lg: 12px;
}

.lt-shell {
  background: var(--lt-bg);
  min-height: 60vh;
  padding: 0 0 56px;
  color: var(--lt-ink);
}

.lt-page {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 20px;
}
@media (max-width: 640px) {
  .lt-page { padding: 0 14px; }
}

/* ── subnav ── */
.lt-subnav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px 0 0;
  margin-bottom: 0;
  position: sticky;
  top: var(--bdai-top-h, 52px);
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
}
.lt-subnav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  flex: 1;
  border-bottom: 1px solid var(--lt-line);
}
.lt-subnav__links a {
  display: inline-flex;
  align-items: center;
  padding: 10px 11px;
  margin-bottom: -1px;
  font-size: 14px;
  font-weight: 500;
  color: var(--lt-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  border-radius: 4px 4px 0 0;
}
.lt-subnav__links a:hover {
  color: var(--lt-ink);
  background: var(--lt-bg-soft);
}
.lt-subnav__links a.is-active {
  color: var(--lt-ink);
  font-weight: 600;
  border-bottom-color: var(--lt-ink);
  background: transparent;
}
.lt-subnav__cta {
  margin-left: 8px;
  flex-shrink: 0;
}

/* ── buttons: Notion blue / soft gray — no purple, no navy fill ── */
.lt-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.lt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 550;
  letter-spacing: -0.01em;
  text-decoration: none !important;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.lt-btn--primary {
  background: var(--lt-blue) !important;
  border-color: var(--lt-blue) !important;
  color: #fff !important;
}
.lt-btn--primary:hover {
  background: var(--lt-blue-hover) !important;
  border-color: var(--lt-blue-hover) !important;
  color: #fff !important;
}
.lt-btn--ghost {
  background: var(--lt-bg-soft) !important;
  color: var(--lt-ink) !important;
  border-color: transparent !important;
}
.lt-btn--ghost:hover {
  background: var(--lt-bg-hover) !important;
}
.lt-btn--outline {
  background: #fff !important;
  color: var(--lt-ink) !important;
  border-color: var(--lt-line-strong) !important;
}
.lt-btn--outline:hover {
  background: var(--lt-bg-soft) !important;
}
.lt-btn--on-dark {
  background: rgba(255, 255, 255, 0.12) !important;
  color: #fff !important;
  border-color: rgba(255, 255, 255, 0.28) !important;
}
.lt-btn--on-dark:hover {
  background: rgba(255, 255, 255, 0.2) !important;
  color: #fff !important;
}
.lt-btn--solid-white {
  background: #fff !important;
  color: var(--lt-ink) !important;
  border-color: #fff !important;
  font-weight: 600;
}
.lt-btn--sm {
  padding: 6px 12px;
  font-size: 13px;
}

/* ── hero ── */
.lt-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
  padding: 20px 0 8px;
}
@media (max-width: 900px) {
  .lt-hero {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px 0 8px;
  }
}
.lt-hero__eyebrow {
  font-size: 13px;
  font-weight: 500;
  color: var(--lt-faint);
  margin-bottom: 8px;
}
.lt-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--lt-ink);
  line-height: 1.15;
}
.lt-hero__intro {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--lt-muted);
  max-width: none;
}
.lt-hero__logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  margin-bottom: 16px;
  border-radius: 8px;
}
.lt-hero__media {
  border-radius: var(--lt-radius-lg);
  overflow: hidden;
  background: var(--lt-bg-soft);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--lt-line);
}
.lt-hero__media video,
.lt-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.lt-hero__media-empty {
  display: grid;
  place-items: center;
  height: 100%;
  color: var(--lt-faint);
  font-weight: 500;
  font-size: 14px;
  padding: 28px;
  text-align: center;
  line-height: 1.55;
}

/* ── sections ── */
.lt-section {
  margin-top: 40px;
  scroll-margin-top: 88px;
}
.lt-section__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 12px;
}
.lt-section__head h2,
.lt-h2 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--lt-ink);
  letter-spacing: -0.02em;
}
.lt-section__head p,
.lt-lead {
  margin: 4px 0 0;
  font-size: 14.5px;
  color: var(--lt-muted);
  line-height: 1.6;
  max-width: none;
}
.lt-h3 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--lt-muted);
  letter-spacing: -0.01em;
}
.lt-more {
  font-size: 14px;
  font-weight: 500;
  color: var(--lt-blue);
  text-decoration: none;
  white-space: nowrap;
}
.lt-more:hover { text-decoration: underline; }

.lt-page-hero {
  padding: 18px 0 4px;
}
.lt-page-hero h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--lt-ink);
  letter-spacing: -0.025em;
}
.lt-page-hero p {
  margin: 8px 0 0;
  color: var(--lt-muted);
  font-size: 15px;
  line-height: 1.6;
  max-width: none;
}

/* ── about banner: soft charcoal, not purple ── */
.lt-about-banner {
  position: relative;
  border-radius: var(--lt-radius-lg);
  overflow: hidden;
  min-height: 200px;
  background: #2f2e2b;
  color: #fff;
  padding: 32px 28px;
  display: grid;
  align-content: end;
  border: 1px solid var(--lt-line);
}
.lt-about-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(47, 46, 43, 0.2) 0%, rgba(47, 46, 43, 0.78) 100%);
  z-index: 1;
}
.lt-about-banner__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.lt-about-banner__body { position: relative; z-index: 2; }
.lt-about-banner h2 {
  margin: 0;
  font-size: clamp(1.35rem, 2.8vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.lt-about-banner p {
  margin: 10px 0 0;
  opacity: 0.88;
  font-size: 14.5px;
  line-height: 1.6;
  max-width: none;
  color: #e3e2de;
}

/* ── accordion (Notion toggle) ── */
.lt-accordion details {
  border-bottom: 1px solid var(--lt-line);
  background: transparent;
  margin-bottom: 0;
  overflow: visible;
  border-radius: 0;
  border-left: 0;
  border-right: 0;
  border-top: 0;
}
.lt-accordion details:first-child {
  border-top: 1px solid var(--lt-line);
}
.lt-accordion summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 4px;
  font-weight: 600;
  color: var(--lt-ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 15px;
}
.lt-accordion summary::-webkit-details-marker { display: none; }
.lt-accordion summary::after {
  content: "▸";
  font-size: 12px;
  color: var(--lt-faint);
  transition: transform 0.12s;
}
.lt-accordion details[open] summary {
  background: transparent;
}
.lt-accordion details[open] summary::after {
  content: "▾";
}
.lt-accordion__body {
  padding: 0 4px 16px;
  border-top: 0;
}
.lt-event {
  padding: 12px 0;
  border-bottom: 1px solid var(--lt-line);
}
.lt-event:last-child { border-bottom: 0; }
.lt-event__date {
  font-size: 12px;
  font-weight: 600;
  color: var(--lt-faint);
  margin-bottom: 4px;
}
.lt-event h4 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--lt-ink);
}
.lt-event p {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--lt-muted);
  line-height: 1.6;
}

/* ── grids / soft blocks ── */
.lt-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
@media (max-width: 1100px) {
  .lt-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 800px) {
  .lt-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .lt-grid { grid-template-columns: 1fr; }
}

.lt-card {
  display: block;
  text-decoration: none !important;
  color: inherit;
  border: 1px solid var(--lt-line);
  border-radius: var(--lt-radius-lg);
  background: var(--lt-bg);
  overflow: hidden;
  transition: background 0.12s, border-color 0.12s;
}
.lt-card:hover {
  background: var(--lt-bg-soft);
  border-color: var(--lt-line-strong);
}
.lt-card__media {
  aspect-ratio: 16 / 10;
  background: var(--lt-bg-soft);
  display: grid;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--lt-line);
}
.lt-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.lt-card__media-fallback {
  font-size: 24px;
  font-weight: 700;
  color: var(--lt-faint);
}
.lt-card__body { padding: 12px 14px 14px; }
.lt-card__body h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
  color: var(--lt-ink);
  letter-spacing: -0.01em;
}
.lt-card__meta {
  margin-bottom: 2px;
  font-size: 12px;
  font-weight: 500;
  color: var(--lt-faint);
}
.lt-card__body p {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--lt-muted);
  line-height: 1.5;
}
.lt-card__action {
  margin-top: 10px;
  font-weight: 500;
  font-size: 13px;
  color: var(--lt-blue);
}

.lt-duty-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 8px 0 20px;
}
@media (max-width: 900px) {
  .lt-duty-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .lt-duty-grid { grid-template-columns: 1fr; }
}
.lt-duty {
  border: 1px solid var(--lt-line);
  border-radius: var(--lt-radius);
  padding: 12px 14px;
  background: var(--lt-bg-soft);
}
.lt-duty strong {
  display: block;
  font-size: 14px;
  color: var(--lt-ink);
  margin-bottom: 4px;
  font-weight: 600;
}
.lt-duty span {
  font-size: 13px;
  color: var(--lt-muted);
  line-height: 1.5;
}

.lt-member-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 16px;
}
.lt-member {
  text-align: center;
  text-decoration: none !important;
  color: inherit;
}
.lt-member__photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  object-fit: cover;
  background: var(--lt-bg-soft);
  display: block;
  border: 1px solid var(--lt-line);
}
.lt-member__photo-empty {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--lt-bg-soft);
  border: 1px solid var(--lt-line);
  display: grid;
  place-items: center;
  font-weight: 650;
  color: var(--lt-faint);
}
.lt-member__role {
  margin-top: 8px;
  font-size: 11px;
  font-weight: 500;
  color: var(--lt-faint);
}
.lt-member__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--lt-ink);
}

.lt-qa {
  border-top: 1px solid var(--lt-line);
  padding: 16px 0;
}
.lt-qa dt {
  font-weight: 600;
  color: var(--lt-ink);
  margin-bottom: 6px;
}
.lt-qa dd {
  margin: 0;
  color: var(--lt-muted);
  line-height: 1.65;
  font-size: 14.5px;
}

.lt-benefit {
  border: 1px solid var(--lt-line);
  border-radius: var(--lt-radius-lg);
  padding: 16px;
  background: var(--lt-bg);
}
.lt-benefit img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  margin-bottom: 10px;
}
.lt-benefit h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
  color: var(--lt-ink);
}
.lt-benefit p {
  margin: 6px 0 0;
  font-size: 13.5px;
  color: var(--lt-muted);
  line-height: 1.55;
}

.lt-column-list {
  display: grid;
  gap: 2px;
}
.lt-column-list a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 10px;
  border-radius: 6px;
  border: none;
  text-decoration: none;
  color: var(--lt-ink);
  font-weight: 500;
  font-size: 14.5px;
  background: transparent;
  transition: background 0.12s;
}
.lt-column-list a:hover {
  background: var(--lt-bg-soft);
}
.lt-column-list .src {
  font-size: 12px;
  font-weight: 500;
  color: var(--lt-faint);
  white-space: nowrap;
}

.lt-profile {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 20px;
}
@media (max-width: 700px) {
  .lt-profile { grid-template-columns: 1fr; }
}
.lt-profile__photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--lt-radius-lg);
  object-fit: cover;
  background: var(--lt-bg-soft);
  border: 1px solid var(--lt-line);
}
.lt-profile__role {
  font-size: 13px;
  font-weight: 500;
  color: var(--lt-faint);
}
.lt-profile h1 {
  margin: 4px 0 0;
  font-size: 26px;
  font-weight: 700;
  color: var(--lt-ink);
  letter-spacing: -0.025em;
}
.lt-profile__intro {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--lt-muted);
}

.lt-recruit-band {
  margin-top: 48px;
  text-align: left;
  padding: 24px 24px;
  border-radius: var(--lt-radius-lg);
  background: var(--lt-bg-soft);
  color: var(--lt-ink);
  border: 1px solid var(--lt-line);
  box-shadow: none;
}
.lt-recruit-band h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--lt-ink);
}
.lt-recruit-band p {
  margin: 8px 0 0;
  max-width: none;
  opacity: 1;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--lt-muted);
}

.lt-shorts-wrap { margin-top: 8px; }
.lt-shorts-wrap .dash-video-banner {
  background: transparent;
  padding-left: 0;
  padding-right: 0;
}
.lt-shorts-wrap .dash-regular-hero-title {
  color: var(--lt-ink) !important;
  font-weight: 700 !important;
}

.lt-team-hero-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
}
@media (max-width: 560px) {
  .lt-team-hero-row { grid-template-columns: 1fr; }
}
.lt-team-hero-row__img {
  width: 72px;
  height: 72px;
  border-radius: var(--lt-radius-lg);
  object-fit: cover;
  background: var(--lt-bg-soft);
  border: 1px solid var(--lt-line);
}