/* ============ TOKENS — split light/dark, indigo-violet accent ============ */
:root {
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans:  "Inter", system-ui, -apple-system, sans-serif;
  --maxw: 1180px;

  --navy:        #070810;   /* hero / stats / portfolio / cta / footer (dark) */
  --navy-2:      #0e1020;
  --navy-3:      #171a30;
  --cream:       #f2f4fb;   /* thesis / services / founders (light) */
  --cream-deep:  #e5e8f5;
  --gold:        #7c4dff;   /* indigo-violet accent on dark bg */
  --gold-soft:   #a98bff;
  --accent-ink:  #5b3fd6;   /* accent on light bg (readable) */
  --accent-fg:   #ffffff;
  --accent-glow: rgba(124, 77, 255, .20);
  --card-bg:     #131528;   /* portfolio is dark → cards stay dark */
  --ink:         #191d33;   /* dark text on light sections */
  --ink-soft:    #515a75;
  --light:       #e6e9f6;   /* light text on dark sections */
  --light-soft:  #93a0c2;
  --line-light:  rgba(25, 29, 51, .14);   /* dividers on light bg */
  --line-dark:   rgba(255, 255, 255, .09); /* dividers on dark bg */
  --nav-bg:      rgba(7, 8, 16, .92);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--sans);
  background: var(--navy);
  color: var(--light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

img { max-width: 100%; }

/* ============ SHARED TYPE ============ */
.eyebrow {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.4rem;
}
.eyebrow--dark { color: var(--accent-ink); }

.section__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--ink);
  max-width: 18ch;
}
.section__title--light { color: var(--light); }

.section__lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 60ch;
  margin-top: 1.6rem;
}
.section__lead--light { color: var(--light-soft); }

em { font-style: italic; color: var(--gold); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-block;
  font-size: .95rem;
  font-weight: 600;
  padding: 1rem 1.8rem;
  text-decoration: none;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn--gold {
  background: var(--gold);
  color: var(--accent-fg);
}
.btn--gold:hover { background: var(--gold-soft); }
.btn--ghost {
  border: 1px solid var(--line-dark);
  color: var(--light);
}
.btn--ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn:active { transform: translateY(1px); }

/* ============ NAV ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-decoration: none;
}
.logo--lg { font-size: 2rem; }
.logo__kin   { color: var(--light); }
.logo__tarra { color: var(--gold); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}
.nav__links a {
  color: var(--light-soft);
  text-decoration: none;
  font-size: .92rem;
  letter-spacing: .02em;
  transition: color .2s ease;
}
.nav__links a:hover { color: var(--light); }
.nav__cta {
  color: var(--gold) !important;
  font-weight: 600;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav__toggle span {
  width: 26px;
  height: 2px;
  background: var(--light);
  transition: transform .25s ease, opacity .2s ease;
}
.nav__mobile {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--line-dark);
  padding: 8px 28px 18px;
}
.nav__mobile a {
  color: var(--light-soft);
  text-decoration: none;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-dark);
  letter-spacing: .03em;
}
.nav__mobile a:last-child { border-bottom: 0; }
.nav.open .nav__mobile { display: flex; }
.nav.open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ SECTION FRAMES ============ */
section { padding: clamp(4.5rem, 9vw, 8rem) 0; }
.section--cream      { background: var(--cream); }
.section--cream-deep { background: var(--cream-deep); }

/* ============ HERO ============ */
.hero {
  background:
    radial-gradient(120% 90% at 80% -10%, var(--accent-glow), transparent 60%),
    var(--navy);
  padding-top: clamp(5rem, 10vw, 8rem);
}
.hero__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.04;
  letter-spacing: -.015em;
  color: var(--light);
  max-width: 16ch;
}
.hero__lead {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--light-soft);
  max-width: 56ch;
  margin-top: 2rem;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.6rem;
}

/* ============ STATS ============ */
.stats { background: var(--navy); padding-top: 0; }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line-dark);
}
.stat {
  padding: 2.6rem 2rem;
  border-right: 1px solid var(--line-dark);
}
.stat:last-child { border-right: 0; }
.stat__num {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 4vw, 3.6rem);
  font-weight: 500;
  color: var(--gold);
  line-height: 1;
}
.stat__label {
  display: block;
  margin-top: 1rem;
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--light-soft);
}

/* ============ THESIS (centered statement + numbered grid) ============ */
.thesis { text-align: center; }
.thesis__eyebrow { text-align: center; }
.thesis__statement {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.7rem, 3.6vw, 3rem);
  line-height: 1.28;
  letter-spacing: -.005em;
  color: var(--ink);
  max-width: 34ch;
  margin: 0 auto;
}
.thesis__grid {
  margin-top: clamp(3rem, 6vw, 5rem);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: clamp(3rem, 6vw, 5.5rem);
  row-gap: clamp(2.5rem, 5vw, 4rem);
  text-align: left;
}
.tcard {
  padding-top: 2rem;
  border-top: 1px solid var(--line-light);
}
.tcard__num {
  display: block;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--accent-ink);
  margin-bottom: 1.4rem;
}
.tcard__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  color: var(--ink);
  margin-bottom: .9rem;
}
.tcard__text {
  color: var(--ink-soft);
  font-size: 1.02rem;
  max-width: 42ch;
}

/* ============ PLATFORM / PORTFOLIO (dark theme) ============ */
.portfolio { background: var(--navy); }
.cards {
  margin-top: 3.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}
.card {
  background: var(--navy-2);
  border: 1px solid var(--line-dark);
  padding: 2.6rem;
  display: flex;
  flex-direction: column;
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: color-mix(in srgb, var(--gold) 55%, transparent); transform: translateY(-4px); }
.cards__note {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line-dark);
  text-align: center;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--light-soft);
}
.card__name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 2.6rem;
  color: var(--light);
  line-height: 1;
}
.card__name .gold { color: var(--gold); }
.card__tag {
  margin-top: 1rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
}
.card__desc {
  margin-top: 1.4rem;
  color: var(--light-soft);
  font-size: 1.02rem;
}
.card__facts {
  margin-top: 1.8rem;
  border-top: 1px solid var(--line-dark);
}
.card__facts > div {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: .95rem 0;
  border-bottom: 1px solid var(--line-dark);
}
.card__facts dt { color: var(--light-soft); }
.card__facts dd {
  color: var(--light);
  font-weight: 600;
  text-align: right;
}
.card__link {
  margin-top: 1.8rem;
  align-self: flex-start;
  color: var(--light);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 3px;
  transition: color .2s ease;
}
.card__link:hover { color: var(--gold); }

/* ============ FOUNDERS / PROMISES ============ */
.promises {
  margin-top: 3.5rem;
  display: grid;
  gap: 0;
}
.promise {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line-light);
}
.promise:last-child { border-bottom: 1px solid var(--line-light); }
.promise__num {
  font-family: var(--serif);
  font-size: 1.6rem;
  color: var(--gold);
}
.promise__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.7rem;
  color: var(--ink);
  margin-bottom: .5rem;
}
.promise__text { color: var(--ink-soft); max-width: 60ch; }

/* ============ SERVICES (header + 4-up grid) ============ */
.services__head {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.services__head .section__title { max-width: 14ch; }
.services__head-lead {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  line-height: 1.45;
  color: var(--ink-soft);
  padding-top: .4rem;
}

.svc-grid {
  margin-top: clamp(3rem, 6vw, 5rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.6rem, 3vw, 2.6rem);
}
.svc { border-top: 1px solid var(--line-light); padding-top: 1.4rem; }
.svc__top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2rem;
}
.svc__num {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-ink);
}
.svc__meta {
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--ink-soft);
  text-align: right;
}
.svc__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.35rem, 1.8vw, 1.6rem);
  line-height: 1.18;
  color: var(--ink);
  margin-bottom: 1.6rem;
  min-height: 2.6em;
}
.svc__label {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: .7rem;
}
.svc__text { color: var(--ink-soft); font-size: .98rem; }

.services__subhead {
  margin-top: clamp(3.5rem, 6vw, 5rem);
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  color: var(--ink);
}
.pillars {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.pillar {
  padding-top: 1.6rem;
  border-top: 2px solid var(--gold);
}
.pillar__num {
  display: block;
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--accent-ink);
  margin-bottom: 1rem;
}
.pillar__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.45rem;
  color: var(--ink);
  margin-bottom: .7rem;
}
.pillar__text { color: var(--ink-soft); }

/* ============ RESEARCH ============ */
.research { background: var(--navy-2); }
.papers { margin-top: 3.5rem; }
.paper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line-dark);
  text-decoration: none;
  transition: padding-left .2s ease;
}
.paper:last-child { border-bottom: 1px solid var(--line-dark); }
.paper:hover { padding-left: 10px; }
.paper__kind {
  display: inline-block;
  font-size: .75rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .9rem;
}
.paper__title {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  font-weight: 500;
  color: var(--light);
  line-height: 1.2;
}
.paper__desc {
  margin-top: .8rem;
  color: var(--light-soft);
  max-width: 70ch;
}
.paper__cta {
  flex: none;
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--light);
  white-space: nowrap;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 3px;
  transition: color .2s ease;
}
.paper:hover .paper__title { color: var(--gold-soft); }
.paper:hover .paper__cta { color: var(--gold); }

/* ============ CTA ============ */
.cta {
  background:
    radial-gradient(100% 80% at 50% 0%, var(--accent-glow), transparent 60%),
    var(--navy);
}
.cta__inner { text-align: center; display: flex; flex-direction: column; align-items: center; }
.cta__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.08;
  color: var(--light);
  max-width: 16ch;
}
.cta__lead {
  margin-top: 1.8rem;
  color: var(--light-soft);
  font-size: 1.12rem;
  max-width: 56ch;
}
.cta__actions {
  margin-top: 2.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* ============ FOOTER ============ */
.footer { background: var(--navy-2); padding: clamp(4rem, 7vw, 6rem) 0 2.5rem; }
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 3rem;
}
.footer__desc {
  margin-top: 1.4rem;
  color: var(--light-soft);
  max-width: 40ch;
}
.badges {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}
.badge {
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--light-soft);
  border: 1px solid var(--line-dark);
  padding: .5rem .9rem;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.footer__col h4 {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.footer__col a {
  display: block;
  color: var(--light-soft);
  text-decoration: none;
  padding: .4rem 0;
  transition: color .2s ease;
}
.footer__col a:hover { color: var(--light); }
.footer__bottom {
  margin-top: 3rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--line-dark);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--light-soft);
  font-size: .9rem;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 880px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .stats__grid { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .stat:last-child { border-bottom: 0; }
  .thesis__grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .services__head { grid-template-columns: 1fr; gap: 1.4rem; }
  .services__head .section__title { max-width: 18ch; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .svc__title { min-height: 0; }
  .pillars { grid-template-columns: 1fr; gap: 0; }
  .pillar { margin-top: 1.6rem; }
  .paper { flex-direction: column; align-items: flex-start; gap: 1.2rem; }
  .footer__inner { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .container { padding: 0 20px; }
  .card { padding: 1.8rem; }
  .promise { grid-template-columns: 50px 1fr; gap: 1rem; }
  .paper { grid-template-columns: 70px 1fr; gap: 1.2rem; }
  .card__facts > div { flex-direction: column; gap: .2rem; }
  .card__facts dd { text-align: left; }
  .svc-grid { grid-template-columns: 1fr; }
}