html {
  scroll-padding-top: 88px
}

/* ===== hero ===== */
.hero {
  padding: 66px 0 92px;
  overflow: visible
}

.hero-grid {
  display: grid;
  grid-template-columns:1fr .82fr;
  gap: 54px;
  align-items: center
}

.hero h1 {
  font-size: clamp(38px, 4.8vw, 58px);
  margin: 14px 0 24px;
  max-width: 19ch
}

.hero h1 em {
  font-style: normal;
  color: var(--amber)
}

.hero .lead {
  margin-bottom: 32px;
  max-width: 50ch
}

.hero-cta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center
}

.hero-scrollcue {
  margin-top: 50px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-faint)
}

.hero-scrollcue i {
  width: 1px;
  height: 30px;
  background: linear-gradient(var(--teal), transparent);
  display: block
}

.hero-vis {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center
}

.hero-vis::before {
  content: "";
  position: absolute;
  inset: 10% 12%;
  border-radius: 50%;
  background: radial-gradient(58% 46% at 50% 50%, rgba(226, 165, 46, .14), transparent 70%);
  filter: blur(8px);
  z-index: 0
}

.hero-vis svg {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible
}

/* tree-rings vocabulary (hero = young, §3 = mature): heart pulses, a halo propagates, cernes settle in its wake */
.stratum {
  fill: none;
  stroke-width: 1.3;
  stroke-opacity: 0
}

.stratum.major {
  stroke-width: 1.4
}

.wave {
  fill: none;
  stroke-width: 1.5;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center
}

.o-glow {
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center
}

.origin {
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center
}

.origin .o-ring {
  fill: none;
  stroke-width: 1.5
}

.hero-vis .stratum {
  stroke: var(--ink-navy)
}

.hero-vis .wave {
  stroke: var(--amber)
}

.hero-vis .o-glow {
  fill: var(--amber)
}

.hero-vis .origin .o-ring {
  stroke: var(--amber);
  opacity: .85
}

.hero-vis .origin .o-dot {
  fill: var(--amber)
}

/* ===== founders (origin & continuity) ===== */
.origin-sec {
  padding: 96px 0
}

.origin-head {
  max-width: 62ch
}

.origin-head p {
  margin-top: 18px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-soft)
}

.origin-head p + p {
  margin-top: 16px
}

.founders {
  margin-top: 50px
}

.founders-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 22px
}

.founder-row {
  display: grid;
  grid-template-columns:repeat(4, 1fr);
  gap: 30px
}

.founder {
  text-align: left
}

.f-portrait {
  width: 100%;
  max-width: 148px;
  aspect-ratio: 1/1;
  border-radius: 14px;
  object-fit: cover;
  display: block;
  background: var(--ivory-card)
}

.f-name {
  font-family: var(--display);
  font-weight: 600;
  font-size: 17px;
  color: var(--ink-navy);
  margin-top: 16px;
  line-height: 1.15
}

.f-role {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--teal);
  margin-top: 6px;
  display: block
}

.f-since {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 8px;
  display: block
}

/* ===== the moment: time rings ===== */
.rings {
  padding: 118px 0
}

.rings-inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center
}

.rings h2 {
  margin: 14px 0 18px
}

.rings .lead {
  margin: 0 auto 8px
}

.rings .lead em {
  font-style: normal;
  color: var(--amber-soft)
}

.rings-vis {
  margin: 40px auto 6px;
  max-width: 600px
}

.rings-vis svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible
}

.rings .stratum {
  stroke: var(--ink-300)
}

.rings .wave {
  stroke: var(--amber-soft)
}

.rings .o-glow {
  fill: var(--amber-soft)
}

.rings .origin .o-ring {
  stroke: var(--amber-soft);
  opacity: .85
}

.rings .origin .o-dot {
  fill: var(--amber-soft)
}

.ms {
  opacity: 0
}

.ms .ms-dot.t {
  fill: var(--teal-bright)
}

.ms .ms-dot.a {
  fill: var(--amber)
}

.ms-year {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  fill: var(--ink-100)
}

.ms-tag {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 10.5px;
  letter-spacing: .06em;
  fill: var(--ink-300)
}

.hero-vis .ms-year {
  fill: var(--ink-navy);
  font-size: 12px
}

.hero-vis .ms-tag {
  fill: var(--ink-soft);
  font-size: 9px;
  letter-spacing: .02em
}

.ph {
  opacity: 0
}

.ph-frame {
  fill: none
}

.rings .ph-frame {
  stroke: rgba(245, 240, 231, .6);
  stroke-width: 1
}

.lineage {
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto
}

.lineage-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-400);
  margin-bottom: 16px
}

.lineage-names {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(17px, 2vw, 21px);
  color: var(--ink-200);
  line-height: 1.4
}

.lineage-names i {
  font-style: normal;
  color: var(--ink-400)
}

.lineage-note {
  margin-top: 16px;
  font-size: 14.5px;
  color: var(--ink-300)
}

.rings-foot {
  margin-top: 40px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-400)
}

.rings-foot b {
  color: var(--amber-soft);
  font-weight: 500
}

/* ===== mission & values ===== */
.mission {
  padding: 102px 0
}

.mission-head {
  max-width: 760px
}

.mission-head h2 {
  margin: 14px 0 20px
}

.mission-head h2 em {
  font-style: normal;
  color: var(--teal)
}

.mission-head .lead {
  max-width: 64ch
}

.mission-grid {
  display: grid;
  grid-template-columns:repeat(3, 1fr);
  gap: 20px;
  margin-top: 44px
}

.mission-card {
  background: var(--ivory-card);
  border: 1px solid var(--line-dark);
  border-radius: 16px;
  padding: 28px 26px;
  box-shadow: 0 14px 32px -26px rgba(15, 38, 54, .45)
}

.mission-card .n {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal);
  display: block;
  margin-bottom: 14px
}

.mission-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--ink-navy)
}

.mission-card h3 em {
  font-style: normal;
  color: var(--amber)
}

.mission-card p {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.58
}

.commitments {
  padding: 104px 0
}

.commit-head {
  max-width: 720px
}

.commit-head h2 {
  margin: 14px 0 18px
}

.commit-grid {
  display: grid;
  grid-template-columns:repeat(5, 1fr);
  gap: 16px;
  margin-top: 42px
}

.commit-card {
  background: var(--navy-850);
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 22px 20px;
  min-height: 190px
}

.commit-card .mk {
  width: 26px;
  height: 3px;
  border-radius: 2px;
  background: var(--amber);
  display: block;
  margin-bottom: 16px
}

.commit-card:nth-child(even) .mk {
  background: var(--teal-bright)
}

.commit-card h3 {
  font-size: 18px;
  color: var(--ink-100);
  margin-bottom: 9px
}

.commit-card p {
  font-size: 13.8px;
  color: var(--ink-300);
  line-height: 1.55
}

.book-sec {
  padding: 104px 0
}

.book-wrap {
  display: grid;
  grid-template-columns:1fr .78fr;
  gap: 58px;
  align-items: center
}

.book-copy h2 {
  margin: 14px 0 20px
}

.book-copy h2 em {
  font-style: normal;
  color: var(--amber)
}

.book-copy p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 62ch
}

.book-copy p + p {
  margin-top: 16px
}

.book-actions {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 30px
}

.book-panel {
  position: relative;
  background: var(--ivory-card);
  border: 1px solid var(--line-dark);
  border-radius: 18px;
  padding: 34px 32px;
  box-shadow: 0 26px 62px -38px rgba(10, 24, 34, .55);
  overflow: hidden
}

.book-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: linear-gradient(90deg, var(--teal), var(--amber))
}

.book-cover {
  width: 112px;
  height: 156px;
  border-radius: 6px;
  background: linear-gradient(160deg, var(--teal), #0f5f58 56%, var(--amber));
  box-shadow: 0 20px 34px -22px rgba(10, 24, 34, .55);
  margin-bottom: 22px
}

.book-cover-img {
  width: min(176px, 100%);
  aspect-ratio: 527/746;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(15, 38, 54, .12);
  box-shadow: 0 24px 42px -24px rgba(10, 24, 34, .65);
  margin-bottom: 22px;
  background: var(--navy-900)
}

.book-panel .small {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px
}

.book-panel h3 {
  font-size: 24px;
  color: var(--ink-navy);
  margin-bottom: 12px
}

.book-panel p {
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.55
}

/* ===== final CTA ===== */
.cta {
  padding: 112px 0;
  text-align: center
}

.cta-inner {
  max-width: 680px;
  margin: 0 auto
}

.cta h2 {
  font-size: clamp(28px, 3.6vw, 44px);
  margin-bottom: 18px
}

.cta h2 em {
  font-style: normal;
  color: var(--amber-soft)
}

.cta .lead {
  margin: 0 auto 30px;
  max-width: 62ch
}

.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap
}

.cta-note {
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-400)
}

@keyframes seedpulse {
  0%, 100% {
    transform: scale(1);
    opacity: .85
  }
  50% {
    transform: scale(1.2);
    opacity: 1
  }
}

@keyframes seedglow {
  0%, 100% {
    opacity: .05;
    transform: scale(.85)
  }
  50% {
    opacity: .18;
    transform: scale(1.35)
  }
}

@keyframes wavego {
  0% {
    transform: scale(.05);
    opacity: 0
  }
  12% {
    opacity: .6
  }
  100% {
    transform: scale(1);
    opacity: 0
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none
  }

  .stratum {
    stroke-opacity: .2
  }

  .stratum.major {
    stroke-opacity: .34
  }

  .rings .stratum {
    stroke-opacity: .22
  }

  .rings .stratum.major {
    stroke-opacity: .42
  }

  .ms, .origin, .ph {
    opacity: 1
  }

  .wave {
    display: none
  }
}

@media (max-width: 880px) {
  .menu, .lang {
    display: none
  }

  .menu-toggle {
    display: block
  }

  .wrap {
    padding: 0 22px
  }

  .hero-grid {
    grid-template-columns:1fr;
    gap: 30px
  }

  .hero-vis {
    height: 300px;
    order: -1
  }

  .hero h1 {
    max-width: none
  }

  .founder-row {
    grid-template-columns:1fr 1fr;
    gap: 26px
  }

  .mission-grid, .book-wrap {
    grid-template-columns:1fr
  }

  .commit-grid {
    grid-template-columns:1fr 1fr
  }
}