:root {
  --ink: #070b0a;
  --panel: #0d1210;
  --soft: #a5aca8;
  --line: #ffffff1c;
  --lime: #91e800;
  --lime-2: #b5ff18;
  --header-logo-height: 120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  background: var(--ink);
  color: #fff;
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

main {
  width: 100%;
  overflow-x: clip;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

/* ─── Header ─── */
.site-header {
  border-bottom: 1px solid var(--line);
  z-index: 20;
  justify-content: space-between;
  align-items: center;
  max-width: 1240px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  position: relative;
  overflow: visible;
}

.brand {
  flex-shrink: 0;
  display: block;
}

.brand-logo-img {
  height: var(--header-logo-height);
  width: auto;
  display: block;
  image-rendering: auto;
  -webkit-font-smoothing: antialiased;
}

.brand-icon {
  flex: none;
  height: 52px;
  width: auto;
  display: block;
}

.accent {
  color: var(--lime);
}

nav {
  color: #bdc3bf;
  align-items: center;
  gap: 30px;
  font-size: 13px;
  display: flex;
}

nav a:hover {
  color: #fff;
}

.nav-cta {
  color: #080c09;
  background: var(--lime);
  border-radius: 999px;
  padding: 11px 16px;
  font-weight: 760;
}

/* ─── Hero ─── */
.hero {
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 58px;
  max-width: 1240px;
  min-height: calc(100vh - var(--header-logo-height) - 36px);
  margin: auto;
  padding: 78px 28px 48px;
  display: grid;
}

.hero-copy {
  z-index: 5;
  position: relative;
  min-width: 0;
  max-width: 100%;
}

.eyebrow {
  color: #b5bcb8;
  letter-spacing: 0.18em;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 760;
  display: flex;
}

.eyebrow span {
  background: var(--lime);
  width: 26px;
  height: 2px;
  display: inline-block;
}

h1 {
  letter-spacing: -0.065em;
  margin: 22px 0 24px;
  font-size: clamp(62px, 7vw, 102px);
  font-weight: 880;
  line-height: 0.89;
}

h1 span,
h2 span {
  color: var(--lime);
}

.hero-lead {
  color: #b8bfbb;
  max-width: 620px;
  font-size: 18px;
  line-height: 1.7;
}

.hero-actions {
  align-items: center;
  gap: 24px;
  margin-top: 34px;
  display: flex;
}

.primary-button {
  background: var(--lime);
  color: #081006;
  border-radius: 7px;
  justify-content: space-between;
  align-items: center;
  gap: 26px;
  min-width: 208px;
  padding: 16px 19px;
  font-size: 13px;
  font-weight: 820;
  transition: transform 0.2s, background 0.2s;
  display: inline-flex;
}

.primary-button:hover {
  background: var(--lime-2);
  transform: translateY(-2px);
}

.launch-note {
  gap: 2px;
  display: grid;
}

.launch-note b {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
}

.launch-note small {
  color: #7f8782;
  font-size: 11px;
}

.proof-row {
  border-top: 1px solid var(--line);
  color: #8d9590;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  gap: 26px;
  margin-top: 54px;
  padding-top: 20px;
  font-size: 11px;
  display: flex;
}

.proof-row span {
  align-items: center;
  gap: 8px;
  display: flex;
}

.proof-row b {
  color: var(--lime);
  font-size: 10px;
}

.hero-visual {
  place-items: center;
  min-height: 680px;
  display: grid;
  position: relative;
  min-width: 0;
  overflow: hidden;
}

.visual-glow {
  filter: blur(8px);
  background: radial-gradient(circle, #91e8002e, #0000 68%);
  width: 540px;
  height: 540px;
  position: absolute;
}

.hero-visual::before {
  content: "";
  border: 1px solid #91e8002e;
  border-radius: 50%;
  width: 460px;
  height: 460px;
  position: absolute;
  box-shadow: 0 0 0 70px #91e80006, 0 0 0 140px #91e80005;
}

.hero-visual img {
  object-fit: cover;
  object-position: 63% center;
  z-index: 2;
  border-radius: 34px;
  width: 405px;
  max-height: 680px;
  position: relative;
  box-shadow: 0 40px 110px #000;
}

.metric-card {
  z-index: 4;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: #101512eb;
  border: 1px solid #ffffff21;
  border-radius: 12px;
  gap: 2px;
  min-width: 144px;
  padding: 15px 17px;
  display: grid;
  position: absolute;
  box-shadow: 0 18px 50px #00000073;
}

.metric-card small {
  color: #7f8882;
  letter-spacing: 0.15em;
  font-size: 8px;
}

.metric-card strong {
  color: var(--lime);
  font-size: 21px;
}

.metric-card span {
  color: #afb6b1;
  font-size: 10px;
}

.metric-top {
  top: 17%;
  right: 0;
}

.metric-bottom {
  bottom: 14%;
  left: 0;
}

/* ─── Method ─── */
.principle {
  border-top: 1px solid var(--line);
  max-width: 1240px;
  min-height: 68vh;
  margin: auto;
  padding: 120px 28px;
}

.principle h2 {
  letter-spacing: -0.05em;
  max-width: 850px;
  margin: 26px 0;
  font-size: clamp(44px, 5.4vw, 78px);
  line-height: 0.98;
}

.principle > p:last-of-type {
  color: #a4aca7;
  max-width: 700px;
  font-size: 19px;
  line-height: 1.75;
}

.steps {
  background: var(--line);
  border: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 70px;
  display: grid;
}

.steps article {
  background: var(--panel);
  padding: 32px 30px 35px;
}

.steps b {
  color: var(--lime);
  letter-spacing: 0.12em;
  font-size: 11px;
}

.steps h3 {
  letter-spacing: -0.02em;
  margin: 34px 0 10px;
  font-size: 20px;
}

.steps p {
  color: #8f9792;
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
}

/* ─── Showcase ─── */
.showcase {
  color: #101410;
  background: #f1f3ef;
  padding: 118px max(28px, 50vw - 592px);
}

.showcase .eyebrow {
  color: #525a54;
}

.showcase-heading h2 {
  letter-spacing: -0.055em;
  margin: 24px 0 78px;
  font-size: clamp(44px, 5.4vw, 76px);
  line-height: 1;
}

.showcase-heading h2 span,
.feature h3 span {
  color: #5c9f00;
}

.feature {
  border-top: 1px solid #d2d6d0;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 76px;
  min-height: 710px;
  padding: 68px 0;
  display: grid;
}

.feature-copy {
  padding: 20px;
}

.feature-index {
  letter-spacing: 0.18em;
  color: #728069;
  font-size: 10px;
  font-weight: 800;
}

.feature-copy h3 {
  letter-spacing: -0.05em;
  margin: 22px 0 24px;
  font-size: clamp(38px, 4vw, 60px);
  line-height: 1;
}

.feature-copy > p {
  color: #566058;
  max-width: 510px;
  font-size: 17px;
  line-height: 1.72;
}

.feature-copy ul {
  border-top: 1px solid #d0d5ce;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.feature-copy li {
  border-bottom: 1px solid #d0d5ce;
  padding: 15px 0 15px 24px;
  font-size: 13px;
  font-weight: 680;
  position: relative;
}

.feature-copy li::before {
  content: "+";
  color: #65ab00;
  font-weight: 900;
  position: absolute;
  left: 2px;
}

.image-panel {
  background: #111;
  border-radius: 4px;
  height: 640px;
  position: relative;
  overflow: hidden;
}

.image-panel img {
  object-fit: cover;
  width: 100%;
  height: 100%;
  display: block;
}

.progress-panel img {
  transform-origin: 79% 38%;
  transform: scale(1.3);
}

.nutrition-panel img {
  transform-origin: 77% 38%;
  transform: scale(1.3);
}

/* ─── Essentials ─── */
.essentials {
  grid-template-columns: 0.78fr 1.22fr;
  gap: 80px;
  max-width: 1240px;
  margin: auto;
  padding: 120px 28px;
  display: grid;
}

.essentials-copy h2 {
  letter-spacing: -0.055em;
  margin: 24px 0;
  font-size: clamp(48px, 5vw, 72px);
  line-height: 0.98;
}

.mini-grid {
  background: var(--line);
  border: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  display: grid;
}

.mini-grid article {
  background: var(--panel);
  min-height: 280px;
  padding: 30px 24px;
}

.mini-grid article > span {
  color: var(--lime);
  letter-spacing: 0.16em;
  font-size: 9px;
  font-weight: 900;
}

.mini-grid h3 {
  margin: 46px 0 14px;
  font-size: 20px;
  line-height: 1.16;
}

.mini-grid p {
  color: #8c948f;
  font-size: 13px;
  line-height: 1.65;
}

/* ─── Brain strip ─── */
.brain-strip {
  border: 1px solid var(--line);
  justify-content: flex-end;
  align-items: center;
  max-width: 1184px;
  height: 470px;
  margin: 0 auto 120px;
  display: flex;
  position: relative;
  overflow: hidden;
}

.brain-strip::after {
  content: "";
  background: linear-gradient(90deg, #070b0a 0%, #070b0af5 36%, #070b0a1f 72%);
  position: absolute;
  inset: 0;
}

.brain-strip img {
  object-fit: cover;
  object-position: 60% 38%;
  width: 61%;
  height: 100%;
  position: absolute;
  right: 0;
}

.brain-strip div {
  z-index: 2;
  gap: 16px;
  margin-right: auto;
  padding: 58px;
  display: grid;
  position: relative;
}

.brain-strip div > span {
  color: var(--lime);
  letter-spacing: 0.16em;
  font-size: 10px;
  font-weight: 820;
}

.brain-strip strong {
  letter-spacing: -0.045em;
  font-size: clamp(36px, 4vw, 58px);
  line-height: 1.02;
}

.brain-strip em {
  color: var(--lime);
  font-style: normal;
}

/* ─── Launch ─── */
.launch {
  text-align: center;
  border-top: 1px solid var(--line);
  background: radial-gradient(circle at 50% 105%, #91e80021, #0000 44%);
  padding: 130px 24px 115px;
}

.launch .eyebrow {
  justify-content: center;
}

.launch h2 {
  letter-spacing: -0.06em;
  margin: 28px auto;
  font-size: clamp(48px, 6vw, 82px);
  line-height: 0.96;
}

.launch > p {
  color: #9da59f;
  font-size: 17px;
}

.early-badge {
  background: linear-gradient(135deg, #91e80018, #91e80006);
  border: 1.5px solid #91e80066;
  border-radius: 12px;
  align-items: center;
  gap: 18px;
  width: fit-content;
  max-width: 100%;
  padding: 18px 24px;
  display: flex;
  box-shadow: 0 0 40px #91e8001f, inset 0 1px 0 #ffffff0d;
  animation: early-glow 3s ease-in-out infinite;
}

.early-badge--hero {
  margin-top: 28px;
}

@keyframes early-glow {
  0%,
  100% {
    box-shadow: 0 0 32px #91e8001a, inset 0 1px 0 #ffffff0d;
    border-color: #91e80055;
  }

  50% {
    box-shadow: 0 0 48px #91e80033, inset 0 1px 0 #ffffff12;
    border-color: #91e80099;
  }
}

.early-badge b {
  color: var(--lime);
  letter-spacing: 0.14em;
  white-space: nowrap;
  background: #91e8001a;
  border: 1px solid #91e80044;
  border-radius: 999px;
  flex: none;
  padding: 8px 12px;
  font-size: 10px;
  font-weight: 900;
}

.early-badge span {
  color: #fff;
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 650;
  line-height: 1.35;
}

.early-badge span strong {
  color: var(--lime);
  font-weight: 850;
}

/* ─── Footer ─── */
footer {
  border-top: 1px solid var(--line);
  color: #6f7772;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px;
  max-width: 1240px;
  min-height: 116px;
  margin: auto;
  padding: 28px;
  font-size: 10px;
  display: grid;
}

footer > span {
  text-align: right;
}

.footer-brand {
  flex-shrink: 0;
  display: block;
}

.footer-logo-img {
  height: 56px;
  width: auto;
  max-width: min(52vw, 240px);
  display: block;
}

/* ─── Responsive ─── */
@media (max-width: 860px) {
  :root {
    --header-logo-height: 72px;
  }

  .site-header {
    padding: 12px 16px;
    overflow: visible;
    gap: 12px;
  }

  .brand {
    flex-shrink: 1;
    min-width: 0;
    max-width: calc(100% - 118px);
  }

  .brand-logo-img {
    max-width: 100%;
    object-fit: contain;
  }

  nav {
    flex-shrink: 0;
  }

  nav a:not(.nav-cta) {
    display: none;
  }

  .nav-cta {
    padding: 9px 12px;
    font-size: 11px;
    white-space: nowrap;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 28px;
    min-height: auto;
    padding: 40px 16px 24px;
  }

  .eyebrow {
    flex-wrap: wrap;
    font-size: 10px;
    letter-spacing: 0.12em;
    line-height: 1.5;
  }

  h1 {
    font-size: clamp(40px, 11.5vw, 68px);
    line-height: 0.95;
    overflow-wrap: anywhere;
  }

  .hero-lead {
    max-width: 100%;
    font-size: 15px;
    line-height: 1.65;
  }

  .early-badge--hero {
    margin-top: 22px;
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    margin-top: 24px;
  }

  .primary-button {
    width: 100%;
    justify-content: center;
  }

  .launch-note {
    text-align: center;
  }

  .proof-row {
    flex-wrap: wrap;
    white-space: normal;
    gap: 10px 18px;
    margin-top: 32px;
    padding-top: 16px;
  }

  .proof-row span {
    flex: 1 1 calc(50% - 9px);
    min-width: 140px;
  }

  .hero-visual {
    min-height: auto;
    padding: 12px 0 8px;
  }

  .visual-glow {
    width: min(92vw, 420px);
    height: min(92vw, 420px);
  }

  .hero-visual::before {
    width: min(78vw, 360px);
    height: min(78vw, 360px);
  }

  .hero-visual img {
    width: min(85vw, 360px);
    max-height: none;
  }

  .metric-top {
    right: 2%;
  }

  .metric-bottom {
    left: 1%;
  }

  .principle {
    padding: 72px 16px;
  }

  .principle h2 {
    font-size: clamp(34px, 9vw, 52px);
  }

  .principle > p:last-of-type {
    font-size: 16px;
  }

  .steps {
    grid-template-columns: 1fr;
    margin-top: 48px;
  }

  .steps article {
    padding: 26px;
  }

  .steps h3 {
    margin-top: 22px;
  }

  .showcase {
    padding: 72px 16px;
  }

  .showcase-heading h2 {
    margin-bottom: 40px;
    font-size: clamp(34px, 9vw, 52px);
  }

  .feature-copy h3 {
    font-size: clamp(30px, 8vw, 44px);
  }

  .feature {
    grid-template-columns: 1fr;
    gap: 24px;
    min-height: 0;
    padding: 56px 0;
  }

  .feature-nutrition .image-panel {
    order: 2;
  }

  .feature-copy {
    padding: 0;
  }

  .image-panel {
    height: min(72vw, 520px);
  }

  .essentials {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 72px 16px;
  }

  .essentials-copy h2 {
    font-size: clamp(34px, 9vw, 52px);
  }

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

  .mini-grid article {
    min-height: 190px;
  }

  .mini-grid h3 {
    margin-top: 28px;
  }

  .brain-strip {
    height: auto;
    min-height: 360px;
    margin: 0 16px 72px;
    align-items: flex-end;
  }

  .brain-strip strong {
    font-size: clamp(28px, 8vw, 42px);
  }

  .brain-strip img {
    opacity: 0.55;
    width: 100%;
  }

  .brain-strip::after {
    background: linear-gradient(90deg, #070b0a 0%, #070b0ad1 65%, #070b0a1a);
  }

  .brain-strip div {
    padding: 30px;
  }

  .launch {
    padding: 80px 16px 72px;
  }

  .launch h2 {
    font-size: clamp(34px, 9vw, 56px);
  }

  footer {
    grid-template-columns: 1fr auto;
  }

  footer p {
    display: none;
  }
}

@media (max-width: 520px) {
  :root {
    --header-logo-height: 48px;
  }

  .site-header {
    padding: 10px 14px;
  }

  .brand {
    max-width: calc(100% - 96px);
  }

  .nav-cta {
    padding: 8px 10px;
    font-size: 10px;
  }

  .hero {
    padding: 28px 14px 20px;
    gap: 20px;
  }

  h1 {
    font-size: clamp(34px, 10vw, 44px);
    margin: 16px 0 18px;
  }

  .hero-lead {
    font-size: 14px;
  }

  .early-badge {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    width: 100%;
    padding: 14px 16px;
  }

  .early-badge b {
    font-size: 9px;
  }

  .early-badge span {
    font-size: 14px;
  }

  .proof-row span {
    flex: 1 1 100%;
    min-width: 0;
  }

  .hero-visual img {
    width: min(92vw, 300px);
  }

  .metric-card {
    min-width: 0;
    padding: 10px 12px;
  }

  .metric-top {
    top: 10%;
    right: 2%;
  }

  .metric-bottom {
    bottom: 6%;
    left: 2%;
  }

  .image-panel {
    height: min(78vw, 420px);
  }

  .brain-strip div {
    padding: 24px 20px 28px;
  }

  footer {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px 14px;
    text-align: center;
  }

  footer > span {
    text-align: center;
  }

  .footer-brand {
    justify-self: center;
  }

  .footer-logo-img {
    height: 48px;
    max-width: min(70vw, 220px);
    margin: 0 auto;
  }
}