:root {
  --ink: #13241c;
  --ink-soft: #2c4036;
  --paper: #e8ece4;
  --paper-deep: #d5ddd0;
  --mist: rgba(232, 236, 228, 0.72);
  --signal: #c6d94e;
  --signal-deep: #9bb02a;
  --teal: #1e4d4a;
  --teal-soft: #2f6b66;
  --line: rgba(19, 36, 28, 0.14);
  --shadow: 0 18px 40px rgba(19, 36, 28, 0.08);
  --font-display: "GFS Didot", "Palatino Linotype", "Times New Roman", serif;
  --font-body: "Literata", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --radius: 14px;
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  font-optical-sizing: auto;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(198, 217, 78, 0.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(30, 77, 74, 0.12), transparent 50%),
    linear-gradient(165deg, var(--paper) 0%, var(--paper-deep) 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(19, 36, 28, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(19, 36, 28, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 85%);
  z-index: 0;
}

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

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

.shell {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.02em;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.45rem;
  letter-spacing: 0.01em;
  line-height: 1.15;
  overflow: visible;
}

.brand__delta {
  display: inline-block;
  color: var(--teal);
  font-weight: 400;
  font-size: 1.28em;
  letter-spacing: 0;
  line-height: 1;
  padding: 0.08em 0.04em 0.02em;
  overflow: visible;
}

.brand__rest {
  letter-spacing: 0.02em;
}

.brand--footer {
  display: inline-flex;
  margin-bottom: 0.35rem;
  font-size: 1.2rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.1rem;
  flex-wrap: wrap;
}

.nav a:not(.btn) {
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
}

.nav a:not(.btn):hover,
.nav a:not(.btn).active {
  color: var(--ink);
}

.nav a:not(.btn).active {
  position: relative;
}

.nav a:not(.btn).active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.35rem;
  height: 2px;
  background: var(--signal-deep);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.72rem 1.25rem;
  font-weight: 600;
  font-size: 0.94rem;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--nav {
  padding: 0.45rem 0.95rem;
  font-size: 0.86rem;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover {
  background: var(--teal);
}

.btn-signal {
  background: var(--signal);
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--ink);
}

main {
  position: relative;
  z-index: 1;
}

.site-footer {
  position: relative;
  z-index: 1;
  margin-top: 4rem;
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.footer-links a {
  font-weight: 500;
  color: var(--ink-soft);
}

.footer-links a:hover {
  color: var(--teal);
}

/* Hero */
.hero {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 4rem);
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
}

.hero__plane {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, transparent 35%, rgba(19, 36, 28, 0.55) 100%),
    radial-gradient(ellipse 80% 60% at 70% 35%, rgba(198, 217, 78, 0.35), transparent 60%),
    linear-gradient(135deg, #1a3a34 0%, #0f241f 42%, #243828 100%);
}

.hero__field {
  position: absolute;
  inset: 0;
  opacity: 0.55;
  background-image: radial-gradient(circle at 2px 2px, rgba(198, 217, 78, 0.55) 1.2px, transparent 0);
  background-size: 42px 42px;
  animation: drift 28s linear infinite;
  mask-image: linear-gradient(180deg, black 20%, transparent 85%);
}

.hero__pulse {
  position: absolute;
  width: 17rem;
  height: 15.5rem;
  right: 7%;
  top: 16%;
  display: grid;
  place-items: center;
  pointer-events: none;
  animation: pulse 4.5s ease-in-out infinite;
}

.hero__delta {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 0 22px rgba(198, 217, 78, 0.28));
}

.hero__delta-ring {
  fill: none;
  stroke-linejoin: round;
}

.hero__delta-ring--outer {
  stroke: rgba(198, 217, 78, 0.4);
  stroke-width: 1.4;
  animation: delta-ring 4.5s ease-in-out infinite;
  transform-origin: 110px 120px;
}

.hero__delta-ring--mid {
  stroke: rgba(232, 236, 228, 0.28);
  stroke-width: 1.2;
  animation: delta-ring 4.5s ease-in-out infinite 0.7s;
  transform-origin: 110px 120px;
}

.hero__delta-core {
  stroke: rgba(198, 217, 78, 0.55);
  stroke-width: 1.5;
}

.hero__eye {
  position: relative;
  z-index: 1;
  width: 2.85rem;
  height: 2.85rem;
  margin-top: 1.85rem;
  display: grid;
  place-items: center;
  transform-origin: center;
  animation: eye-blink 5.5s ease-in-out infinite;
}

.hero__eye svg {
  width: 2.1rem;
  height: 2.1rem;
  color: #0f241f;
  filter: drop-shadow(0 1px 0 rgba(244, 247, 234, 0.35));
}

.hero__content {
  padding: 5rem 0 4rem;
  color: #eef3ea;
  max-width: 40rem;
  animation: rise 0.9s ease both;
}

.hero__brand {
  display: flex;
  align-items: baseline;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 9vw, 5.8rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  margin: 0 0 1rem;
  font-weight: 400;
  color: #eef3ea;
  overflow: visible;
  padding-top: 0.12em;
}

.hero__brand .brand__delta {
  color: var(--signal);
  font-size: 1.2em;
  margin-right: 0.02em;
  padding: 0.1em 0.06em 0.04em;
}

.hero__brand .brand__rest {
  color: #eef3ea;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.1vw, 2.05rem);
  font-weight: 400;
  line-height: 1.3;
  margin: 0 0 0.85rem;
  max-width: 24ch;
  letter-spacing: 0.01em;
}

.hero__lead {
  margin: 0 0 1.6rem;
  color: rgba(238, 243, 234, 0.82);
  max-width: 42ch;
  font-size: 1.05rem;
  line-height: 1.65;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-42px, -42px, 0);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.85;
  }
  50% {
    transform: scale(1.06);
    opacity: 1;
  }
}

@keyframes delta-ring {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.65;
  }
  50% {
    transform: scale(1.07);
    opacity: 1;
  }
}

@keyframes eye-blink {
  0%,
  42%,
  48%,
  100% {
    transform: scaleY(1);
  }
  45% {
    transform: scaleY(0.12);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section {
  position: relative;
  z-index: 1;
  padding: 4.5rem 0 1rem;
}

.section__head {
  max-width: 40rem;
  margin-bottom: 2rem;
}

.section__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
  letter-spacing: 0.01em;
  font-weight: 400;
  overflow: visible;
  padding-top: 0.08em;
}

.section p.lead {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
  line-height: 1.7;
}

.split {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 860px) {
  .split-2 {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }
}

/* Products — stacked editorial rows, not a card grid */
.product-rail {
  display: grid;
  gap: 0;
}

.product {
  padding: 2.25rem 0;
  border-top: 1px solid var(--line);
  animation: rise 0.7s ease both;
}

.product:last-child {
  border-bottom: 1px solid var(--line);
}

.product:nth-child(1) {
  animation-delay: 0.05s;
}
.product:nth-child(2) {
  animation-delay: 0.12s;
}
.product:nth-child(3) {
  animation-delay: 0.18s;
}
.product:nth-child(4) {
  animation-delay: 0.24s;
}

.product__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.65rem 1.1rem;
  margin-bottom: 0.55rem;
}

.product__index {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--teal);
  letter-spacing: 0.04em;
}

.product__host {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
}

.product__name {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-weight: 400;
  margin: 0 0 0.55rem;
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.product__tagline {
  margin: 0 0 1.35rem;
  color: var(--ink-soft);
  max-width: 52rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

.product__features {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: 0;
  max-width: 52rem;
}

@media (min-width: 760px) {
  .product__features {
    grid-template-columns: 1fr 1fr;
    column-gap: 2rem;
  }
}

.product__features li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.product__features strong {
  display: block;
  margin-bottom: 0.2rem;
}

.product__features span:not(.mark) {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.55;
}

.product__disclaimer {
  margin: -0.5rem 0 1.15rem;
  font-size: 0.86rem;
  color: var(--ink-soft);
  font-style: italic;
}

.mark {
  width: 0.65rem;
  height: 0.65rem;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(198, 217, 78, 0.2);
  flex-shrink: 0;
}

.flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.flow-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.flow-list li:first-child {
  border-top: 1px solid var(--line);
}

.flow-list__step {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: color-mix(in srgb, var(--signal) 55%, white);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.85rem;
}

.flow-list strong {
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
}

.flow-list span:not(.flow-list__step) {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.about-band {
  margin-top: 2rem;
  padding: 2rem;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(135deg, var(--teal) 0%, #163834 100%);
  color: #eef3ea;
}

.about-band h2 {
  color: inherit;
}

.about-band p {
  color: rgba(238, 243, 234, 0.85);
  max-width: 48rem;
  margin: 0;
}

.about-band__actions {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (max-width: 720px) {
  .hero__content {
    padding-top: 4rem;
  }

  .hero__pulse {
    width: 11.5rem;
    height: 10.5rem;
    right: -2%;
    top: 10%;
    opacity: 0.9;
  }

  .hero__eye {
    width: 2.1rem;
    height: 2.1rem;
    margin-top: 1.25rem;
  }

  .hero__eye svg {
    width: 1.55rem;
    height: 1.55rem;
  }

  .nav {
    gap: 0.65rem;
  }

  .btn--nav {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__field,
  .hero__pulse,
  .hero__delta-ring,
  .hero__eye,
  .hero__content,
  .product {
    animation: none;
  }
}