:root {
  color-scheme: dark;
  --ink: #f7f5ef;
  --muted: #b8c4bd;
  --soft: rgba(247, 245, 239, 0.72);
  --line: rgba(247, 245, 239, 0.16);
  --panel: rgba(12, 20, 21, 0.78);
  --panel-strong: rgba(17, 28, 29, 0.94);
  --green: #88f2b6;
  --coral: #ff8e78;
  --amber: #f0c36a;
  --cobalt: #76a9ff;
  --bg: #071011;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(136, 242, 182, 0.12), transparent 28rem),
    linear-gradient(180deg, #061011 0%, #0b1515 42%, #101714 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.1rem clamp(1rem, 4vw, 3rem);
  transition: background 180ms ease, border-color 180ms ease, backdrop-filter 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(4, 12, 12, 0.76);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.25rem;
  height: 2rem;
  border: 1px solid rgba(136, 242, 182, 0.44);
  border-radius: 999px;
  color: var(--green);
  font-weight: 760;
  font-size: 0.95rem;
}

.nav {
  display: flex;
  gap: clamp(0.8rem, 2vw, 1.6rem);
  color: var(--soft);
  font-size: 0.9rem;
}

.nav a {
  padding: 0.5rem 0;
}

.nav a:hover {
  color: var(--ink);
}

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.92) contrast(1.03);
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(3, 9, 10, 0.92) 0%, rgba(3, 9, 10, 0.78) 30%, rgba(3, 9, 10, 0.2) 67%, rgba(3, 9, 10, 0.62) 100%),
    linear-gradient(180deg, rgba(3, 9, 10, 0.12) 0%, rgba(3, 9, 10, 0.16) 62%, #071011 100%);
}

.hero-content {
  position: relative;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 7rem 0 4rem;
}

.kicker,
.section-label {
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: 0;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 1.25rem;
  font-size: clamp(2.6rem, 6.4vw, 5.9rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 660px;
  color: rgba(247, 245, 239, 0.84);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.62;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 1.25rem;
  font-weight: 720;
}

.button.primary {
  background: var(--green);
  color: #061011;
}

.button.secondary {
  border: 1px solid rgba(247, 245, 239, 0.28);
  color: var(--ink);
  background: rgba(247, 245, 239, 0.05);
}

.marquee {
  border-block: 1px solid var(--line);
  overflow: hidden;
  background: rgba(5, 13, 13, 0.72);
}

.marquee-track {
  display: flex;
  width: max-content;
  gap: 2rem;
  padding: 0.9rem 1rem;
  color: var(--muted);
  font-size: 0.88rem;
  animation: drift 32s linear infinite;
}

.marquee-track span::before {
  content: "";
  display: inline-block;
  width: 0.44rem;
  height: 0.44rem;
  margin-right: 0.7rem;
  border-radius: 50%;
  background: var(--coral);
}

@keyframes drift {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.section {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4.5rem, 8vw, 8rem) 0;
}

.thesis-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: clamp(2rem, 6vw, 6rem);
  margin-top: 1rem;
}

.thesis h2,
.section-heading h2,
.manifesto h2,
.join h2 {
  font-size: clamp(1.8rem, 3.6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.thesis-copy {
  color: var(--soft);
  font-size: 1rem;
  line-height: 1.72;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.section-heading h2 {
  max-width: 760px;
  margin-bottom: 0;
}

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

.question-card {
  min-height: 18rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(247, 245, 239, 0.065), rgba(247, 245, 239, 0.025));
}

.question-card span {
  color: var(--amber);
  font-size: 0.82rem;
  font-weight: 760;
}

.question-card h3 {
  margin: 1.6rem 0 auto;
  font-size: 1.22rem;
  line-height: 1.22;
}

.question-card p {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.manifesto {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.78fr);
  gap: 1rem;
}

.manifesto-panel {
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(136, 242, 182, 0.18), rgba(118, 169, 255, 0.08)),
    var(--panel-strong);
  border: 1px solid rgba(136, 242, 182, 0.24);
}

.manifesto-panel p:last-child {
  max-width: 760px;
  color: rgba(247, 245, 239, 0.82);
  font-size: 1.08rem;
  line-height: 1.65;
}

.meaning-list {
  display: grid;
  gap: 1rem;
}

.meaning-list div {
  display: grid;
  gap: 0.65rem;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(247, 245, 239, 0.045);
}

.meaning-list strong {
  color: var(--coral);
}

.meaning-list span {
  color: var(--muted);
  line-height: 1.55;
}

.notes-list {
  border-top: 1px solid var(--line);
}

.note-row {
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  gap: 2rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
}

.note-row span {
  color: var(--cobalt);
  font-size: 0.9rem;
  font-weight: 720;
}

.note-row strong {
  font-size: clamp(1.08rem, 1.55vw, 1.42rem);
  line-height: 1.28;
}

.note-row:hover strong {
  color: var(--green);
}

.join {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.7fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  border-top: 1px solid var(--line);
}

.join-copy p:not(.section-label) {
  max-width: 620px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.signup {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(247, 245, 239, 0.055);
}

.signup label {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--soft);
  font-size: 0.9rem;
}

.signup-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.65rem;
}

.signup input,
.signup button {
  min-height: 3rem;
  border: 1px solid rgba(247, 245, 239, 0.18);
  border-radius: 999px;
  font: inherit;
}

.signup input {
  width: 100%;
  background: rgba(4, 12, 12, 0.76);
  color: var(--ink);
  padding: 0 1rem;
}

.signup button {
  cursor: pointer;
  background: var(--ink);
  color: #071011;
  padding: 0 1.1rem;
  font-weight: 780;
}

.signup p {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem clamp(1rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.footer span:first-child {
  color: var(--green);
  font-weight: 780;
}

@media (max-width: 940px) {
  .nav {
    display: none;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-image {
    object-position: 58% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(3, 9, 10, 0.92) 0%, rgba(3, 9, 10, 0.64) 100%),
      linear-gradient(180deg, rgba(3, 9, 10, 0.1) 0%, #071011 100%);
  }

  .thesis-grid,
  .manifesto,
  .join {
    grid-template-columns: 1fr;
  }

  .question-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  h1 {
    font-size: clamp(2.35rem, 11.5vw, 3.65rem);
    line-height: 1;
  }

  .hero-content {
    width: min(100% - 1.2rem, var(--max));
  }

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

  .question-card {
    min-height: 14rem;
  }

  .section-heading {
    display: block;
  }

  .note-row {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }

  .signup-row {
    grid-template-columns: 1fr;
  }

  .footer {
    display: grid;
  }
}