:root {
  --ink: #10231f;
  --muted: #60706b;
  --line: #dbe4df;
  --paper: #fbfdf9;
  --surface: #ffffff;
  --sage: #dfeade;
  --green: #0f6f56;
  --green-dark: #0a4c3c;
  --aqua: #50b8a0;
  --gold: #d39c2c;
  --coral: #d66b55;
  --blue: #315f8d;
  --shadow: 0 24px 70px rgba(20, 55, 44, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 20px;
  padding: 16px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(16, 35, 31, 0.08);
  background: rgba(251, 253, 249, 0.88);
  backdrop-filter: blur(18px);
}

.brand,
.github-link,
.tabs {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  color: var(--green-dark);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  width: 30px;
  height: 30px;
  border: 2px solid var(--green);
  border-radius: 50% 50% 50% 8px;
  background:
    radial-gradient(circle at 64% 36%, var(--gold) 0 10%, transparent 11%),
    radial-gradient(circle at 44% 58%, var(--aqua) 0 18%, transparent 19%),
    var(--sage);
  box-shadow: inset 0 0 0 5px rgba(15, 111, 86, 0.13);
  transform: rotate(-28deg);
}

.tabs {
  justify-self: center;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.tab-button {
  min-width: 96px;
  min-height: 38px;
  border: 0;
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.tab-button.is-active {
  color: white;
  background: var(--green-dark);
  box-shadow: 0 10px 25px rgba(10, 76, 60, 0.2);
}

.github-link {
  justify-self: end;
  gap: 8px;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.github-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.section-band,
.content-section,
.strip,
.people-section,
.site-footer {
  width: min(1160px, calc(100% - 36px));
  margin-inline: auto;
}

.hero,
.about-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(46px, 7vw, 86px) 0 clamp(36px, 5vw, 64px);
}

.about-hero {
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.7fr);
  min-height: 520px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-size: clamp(46px, 7vw, 82px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 19px;
  line-height: 1.2;
}

.hero-text,
.about-hero p {
  max-width: 690px;
  color: #40534d;
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
}

.primary-action {
  background: var(--green-dark);
  color: white;
}

.secondary-action {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--green-dark);
}

.system-visual {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  border: 1px solid rgba(15, 111, 86, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(223, 234, 222, 0.68)),
    radial-gradient(circle at 12% 18%, rgba(80, 184, 160, 0.25), transparent 34%),
    radial-gradient(circle at 92% 72%, rgba(211, 156, 44, 0.18), transparent 34%);
  box-shadow: var(--shadow);
}

.visual-grid {
  position: absolute;
  inset: 0;
  opacity: 0.33;
  background-image:
    linear-gradient(rgba(15, 111, 86, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 111, 86, 0.1) 1px, transparent 1px);
  background-size: 38px 38px;
  animation: grid-drift 18s linear infinite;
}

.signal-path {
  position: absolute;
  border: 1px solid rgba(15, 111, 86, 0.22);
  border-right-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  transform: rotate(-18deg);
  animation: signal-pulse 4.8s ease-in-out infinite;
}

.signal-one {
  left: 15%;
  top: 17%;
  width: 72%;
  height: 54%;
}

.signal-two {
  left: 24%;
  top: 26%;
  width: 54%;
  height: 38%;
  animation-delay: -1.8s;
}



.droplet {
  position: absolute;
  left: 50%;
  top: 42%;
  width: 230px;
  height: 230px;
  transform: translate(-50%, -50%);
  animation: droplet-float 5.2s ease-in-out infinite;
}

.shell,
.payload {
  position: absolute;
  display: block;
  border-radius: 50%;
}

.shell-outer {
  inset: 0;
  border: 22px solid rgba(15, 111, 86, 0.26);
  background: rgba(255, 255, 255, 0.3);
  animation: shell-pulse 3.8s ease-in-out infinite;
}

.shell-inner {
  inset: 46px;
  border: 18px solid rgba(80, 184, 160, 0.38);
  background: rgba(255, 255, 255, 0.38);
  animation: shell-pulse 3.8s ease-in-out infinite reverse;
}

.payload {
  width: 18px;
  height: 18px;
  background: var(--coral);
  box-shadow: 0 0 0 8px rgba(214, 107, 85, 0.12);
}

.payload-a {
  top: 68px;
  left: 64px;
  animation: payload-orbit-a 4.8s ease-in-out infinite;
}

.payload-b {
  right: 54px;
  top: 108px;
  background: var(--blue);
  box-shadow: 0 0 0 8px rgba(49, 95, 141, 0.13);
  animation: payload-orbit-b 5.4s ease-in-out infinite;
}

.payload-c {
  left: 116px;
  bottom: 48px;
  background: var(--gold);
  animation: payload-orbit-c 4.2s ease-in-out infinite;
}

.data-particle,
.rain-drop {
  position: absolute;
  display: block;
  border-radius: 50%;
}

.data-particle {
  width: 12px;
  height: 12px;
  background: var(--green);
  box-shadow: 0 0 0 8px rgba(15, 111, 86, 0.12);
  animation: particle-loop 7s linear infinite;
}

.particle-one {
  left: 18%;
  top: 24%;
}

.particle-two {
  left: 78%;
  top: 36%;
  background: var(--blue);
  animation-delay: -2.4s;
}

.particle-three {
  left: 28%;
  top: 74%;
  background: var(--gold);
  animation-delay: -4.7s;
}

.rain-drop {
  top: -30px;
  width: 5px;
  height: 28px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(49, 95, 141, 0), rgba(49, 95, 141, 0.58));
  transform: rotate(18deg);
  animation: rain-sweep 3.8s linear infinite;
}

.rain-one {
  left: 30%;
}

.rain-two {
  left: 58%;
  animation-delay: -1.2s;
}

.rain-three {
  left: 74%;
  animation-delay: -2.5s;
}

.validation-module {
  position: absolute;
  left: 50%;
  bottom: 60px;
  transform: translateX(-50%);
  width: 168px;
  height: 118px;
  border: 1px solid rgba(15, 111, 86, 0.22);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(223, 234, 222, 0.76)),
    radial-gradient(circle at 25% 25%, rgba(80, 184, 160, 0.22), transparent 34%);
  box-shadow: 0 18px 36px rgba(20, 55, 44, 0.12);
}

.validation-module::before,
.validation-module::after {
  content: "";
  position: absolute;
  display: block;
}

.validation-module::before {
  left: 18px;
  right: 18px;
  bottom: 18px;
  height: 20px;
  border-radius: 999px;
  background: rgba(15, 111, 86, 0.16);
}

.validation-module::after {
  right: 18px;
  top: 18px;
  width: 44px;
  height: 44px;
  border: 8px solid rgba(49, 95, 141, 0.2);
  border-top-color: rgba(49, 95, 141, 0.68);
  border-radius: 50%;
  animation: validation-spin 8s linear infinite;
}

.well,
.growth-signal {
  position: absolute;
  display: block;
}

.well {
  width: 22px;
  height: 22px;
  border: 2px solid rgba(10, 76, 60, 0.22);
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 36%, rgba(255, 255, 255, 0.82) 0 16%, transparent 17%),
    rgba(80, 184, 160, 0.38);
  box-shadow: inset 0 -5px 10px rgba(10, 76, 60, 0.1);
}

.well-one {
  left: 24px;
  top: 22px;
}

.well-two {
  left: 58px;
  top: 22px;
  background:
    radial-gradient(circle at 38% 36%, rgba(255, 255, 255, 0.82) 0 16%, transparent 17%),
    rgba(211, 156, 44, 0.42);
}

.well-three {
  left: 24px;
  top: 56px;
}

.well-four {
  left: 58px;
  top: 56px;
  background:
    radial-gradient(circle at 38% 36%, rgba(255, 255, 255, 0.82) 0 16%, transparent 17%),
    rgba(214, 107, 85, 0.36);
}

.growth-signal {
  left: 114px;
  width: 10px;
  bottom: 36px;
  border-radius: 999px 999px 0 0;
  background: var(--green);
  animation: growth-pulse 3.6s ease-in-out infinite;
}

.growth-one {
  height: 28px;
}

.growth-two {
  left: 132px;
  height: 42px;
  background: var(--gold);
  animation-delay: -1.4s;
}

.pipeline-node {
  position: absolute;
  display: grid;
  place-items: center;
  min-width: 118px;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(16, 35, 31, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 15px 35px rgba(20, 55, 44, 0.1);
}

.node-evidence {
  left: 34px;
  top: 86px;
}

.node-optimize {
  right: 34px;
  top: 160px;
}

.node-llm {
  left: 50%;
  top: 40px;
  transform: translateX(-50%);
}

.node-validate {
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
}

.strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-bottom: 80px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.strip > div {
  padding: 22px;
  background: var(--surface);
}

.metric-value,
.metric-label {
  display: block;
}

.metric-value {
  color: var(--green-dark);
  font-size: 22px;
  font-weight: 800;
}

.metric-label {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.content-section {
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 44px;
  align-items: start;
  margin-bottom: 34px;
}

.two-column,
.loop-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.loop-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.two-column p,
.feature-card p,
.timeline p,
.person-card p,
.loop-grid p {
  color: var(--muted);
}

.two-column p {
  margin-bottom: 0;
  font-size: 18px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.person-card,
.loop-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(20, 55, 44, 0.06);
}

.feature-card,
.loop-grid article {
  padding: 22px;
}

.feature-index,
.loop-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: max-content;
  min-height: 28px;
  margin-bottom: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--sage);
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 800;
}

.split-focus {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1fr);
  gap: 48px;
  align-items: start;
}

.outcome-list {
  display: grid;
  gap: 14px;
}

.outcome-list div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.outcome-list strong {
  color: var(--green-dark);
  font-size: 26px;
}

.outcome-list span {
  color: var(--muted);
  font-weight: 600;
}

.beneficiary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.beneficiary-grid div {
  min-height: 150px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--surface), #f6faf3);
  color: var(--green-dark);
  font-weight: 800;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.timeline article {
  padding: 22px;
  background: var(--surface);
}

.timeline span {
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
}

.lab-section {
  padding-top: 72px;
}

.lab-photo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 18px;
  align-items: stretch;
}

.lab-photo {
  min-height: 360px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(20, 55, 44, 0.06);
}

.lab-photo-large {
  min-height: 440px;
}

.lab-photo img {
  display: block;
  width: 100%;
  height: calc(100% - 78px);
  min-height: 282px;
  object-fit: cover;
}

.lab-photo-large img {
  min-height: 362px;
}

.lab-photo figcaption {
  display: flex;
  align-items: center;
  min-height: 78px;
  margin: 0;
  padding: 16px 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.people-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding-bottom: 80px;
}

.person-card {
  padding: 26px;
}

.person-card-wide {
  grid-column: 1 / -1;
}

.person-header {
  display: grid;
  grid-template-columns: 102px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.person-header h2 {
  margin-bottom: 8px;
  font-size: 30px;
}

.person-header p {
  margin-bottom: 0;
}

.avatar {
  display: grid;
  place-items: center;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  color: white;
  font-weight: 800;
}

.photo-avatar {
  display: block;
  border: 2px solid var(--surface);
  object-fit: cover;
  box-shadow: 0 12px 26px rgba(20, 55, 44, 0.14);
}

.avatar-kevin {
  background: linear-gradient(145deg, var(--green), var(--blue));
}

.avatar-sirshendu {
  background: linear-gradient(145deg, var(--coral), var(--gold));
}

.avatar-susmita {
  background: linear-gradient(145deg, var(--aqua), var(--green-dark));
}

.person-details {
  padding-top: 24px;
}

.person-details h3 {
  margin-top: 24px;
  color: var(--green-dark);
}

.person-details h3:first-child {
  margin-top: 0;
}

.link-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 18px;
}

.link-list a,
.presence-links a {
  color: var(--green-dark);
  font-weight: 800;
  text-decoration-color: rgba(15, 111, 86, 0.32);
  text-underline-offset: 4px;
}

.about-context {
  padding-top: 0;
}

.presence-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.presence-links a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  text-decoration: none;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer span:first-child {
  color: var(--green-dark);
  font-weight: 800;
}

@keyframes grid-drift {
  from {
    background-position: 0 0;
  }

  to {
    background-position: 76px 38px;
  }
}

@keyframes signal-pulse {
  0%,
  100% {
    opacity: 0.18;
    transform: rotate(-18deg) scale(0.96);
  }

  50% {
    opacity: 0.62;
    transform: rotate(-18deg) scale(1.03);
  }
}



@keyframes droplet-float {
  0%,
  100% {
    transform: translate(-50%, -50%) translateY(0);
  }

  50% {
    transform: translate(-50%, -50%) translateY(-14px);
  }
}

@keyframes shell-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.82;
  }

  50% {
    transform: scale(1.04);
    opacity: 1;
  }
}

@keyframes payload-orbit-a {
  50% {
    transform: translate(18px, -12px);
  }
}

@keyframes payload-orbit-b {
  50% {
    transform: translate(-16px, 10px);
  }
}

@keyframes payload-orbit-c {
  50% {
    transform: translate(8px, -18px);
  }
}

@keyframes particle-loop {
  0% {
    transform: translate(0, 0) scale(0.75);
    opacity: 0;
  }

  15%,
  78% {
    opacity: 1;
  }

  100% {
    transform: translate(118px, 74px) scale(1.05);
    opacity: 0;
  }
}

@keyframes rain-sweep {
  0% {
    transform: translateY(-40px) rotate(18deg);
    opacity: 0;
  }

  12%,
  72% {
    opacity: 0.65;
  }

  100% {
    transform: translateY(360px) rotate(18deg);
    opacity: 0;
  }
}

@keyframes validation-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes growth-pulse {
  0%,
  100% {
    transform: scaleY(0.74);
    transform-origin: bottom;
    opacity: 0.76;
  }

  50% {
    transform: scaleY(1);
    opacity: 1;
  }
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .tabs {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: stretch;
    justify-content: center;
  }

  .hero,
  .about-hero,
  .section-heading,
  .split-focus,
  .people-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .system-visual {
    min-height: 470px;
  }

  .strip,
  .feature-grid,
  .beneficiary-grid,
  .loop-grid,
  .lab-photo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    gap: 12px;
    padding: 12px 18px;
  }

  .brand span:last-child,
  .github-link span {
    display: none;
  }

  .tabs {
    overflow: hidden;
  }

  .tab-button {
    flex: 1;
    min-width: 0;
  }

  h1 {
    font-size: 42px;
  }

  .hero,
  .about-hero {
    padding-top: 36px;
  }

  .system-visual {
    min-height: 390px;
  }

  .droplet {
    width: 198px;
    height: 198px;
  }

  .shell-inner {
    inset: 36px;
  }

  .leaf-surface {
    width: 88%;
    height: 112px;
  }

  .pipeline-node {
    min-width: 100px;
    min-height: 36px;
    font-size: 12px;
  }

  .node-evidence {
    left: 14px;
    top: 48px;
  }

  .node-optimize {
    right: 12px;
    top: 112px;
  }

  .node-validate {
    left: 18px;
    bottom: 58px;
  }

  .strip,
  .feature-grid,
  .beneficiary-grid,
  .loop-grid,
  .lab-photo-grid,
  .two-column {
    grid-template-columns: 1fr;
  }

  .lab-photo,
  .lab-photo-large {
    min-height: 0;
  }

  .lab-photo img,
  .lab-photo-large img {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .content-section {
    padding: 58px 0;
  }

  .outcome-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .person-card {
    padding: 20px;
  }

  .person-header {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }
}