.product-page {
  background: #eef2ec;
}

.product-header {
  background: rgba(7, 24, 22, .86);
}

.product-header .brand-mark {
  background: linear-gradient(135deg, var(--green), var(--cyan));
  box-shadow: 0 0 0 5px rgba(128, 214, 176, .09), 0 0 22px rgba(128, 214, 176, .34);
}

.driftinel-hero {
  position: relative;
  min-height: 870px;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 81% 25%, rgba(128, 214, 176, .17), transparent 28%),
    radial-gradient(circle at 68% 70%, rgba(125, 211, 252, .09), transparent 32%),
    linear-gradient(145deg, #061512 0%, #0b2422 58%, #071a1b 100%);
}

.driftinel-hero::before {
  position: absolute;
  inset: 0;
  opacity: .3;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(to right, transparent 3%, black 58%, transparent 100%);
  pointer-events: none;
  content: "";
}

.driftinel-hero::after {
  position: absolute;
  right: -9%;
  bottom: -38%;
  width: 720px;
  height: 720px;
  border: 1px solid rgba(128, 214, 176, .13);
  border-radius: 50%;
  box-shadow: 0 0 0 100px rgba(128, 214, 176, .018), 0 0 0 200px rgba(125, 211, 252, .014);
  pointer-events: none;
  content: "";
}

.driftinel-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, .92fr);
  align-items: center;
  gap: 78px;
  min-height: 870px;
  padding-top: 120px;
  padding-bottom: 72px;
}

.product-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 24px;
  color: #aec5be;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.product-kicker span {
  width: 28px;
  height: 1px;
  background: linear-gradient(to right, var(--green), var(--cyan));
}

.driftinel-hero h1 {
  margin-bottom: 12px;
  color: var(--green);
  font-size: clamp(62px, 8vw, 112px);
}

.driftinel-hero h1 sup {
  position: relative;
  top: -.43em;
  margin-left: 4px;
  font-family: var(--sans);
  font-size: .22em;
  font-weight: 650;
  letter-spacing: 0;
}

.product-promise {
  margin: 0 0 28px;
  color: var(--white);
  font-size: clamp(30px, 3.5vw, 47px);
  font-weight: 670;
  line-height: 1.12;
  letter-spacing: -.035em;
}

.product-promise em {
  color: var(--cyan);
  font-family: var(--serif);
  font-weight: 400;
}

.product-lede {
  max-width: 640px;
  margin: 0;
  color: #c8d9d4;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.48;
  letter-spacing: -.015em;
}

.observation-map {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 22px;
  background: rgba(7, 26, 25, .82);
  box-shadow: 0 32px 100px rgba(0, 0, 0, .42);
  backdrop-filter: blur(18px);
}

.observation-map-head {
  display: flex;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-light);
  color: #a8bab5;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.observation-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--green);
}

.observation-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
}

.signal-list {
  padding: 10px 0;
}

.signal-item {
  display: grid;
  grid-template-columns: 82px 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 62px;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.signal-source {
  color: var(--cyan);
  font-family: var(--serif);
  font-size: 12px;
}

.signal-item p,
.signal-item small {
  margin: 0;
}

.signal-item p {
  color: #e5eeeb;
  font-size: 13px;
  font-weight: 650;
}

.signal-item small {
  color: #89a09a;
  font-size: 9px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.observation-result {
  margin-top: 12px;
  padding: 22px;
  border: 1px solid rgba(128, 214, 176, .22);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(128, 214, 176, .12), rgba(125, 211, 252, .05));
}

.observation-result span {
  display: block;
  margin-bottom: 8px;
  color: var(--green);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.observation-result strong {
  display: block;
  color: var(--white);
  font-size: 20px;
  line-height: 1.25;
}

.observation-result p {
  margin: 7px 0 0;
  color: #aec5be;
  font-size: 12px;
}

.product-thesis {
  padding: 48px 0;
  border-bottom: 1px solid var(--line);
  background: #dfe8df;
}

.product-thesis-grid {
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  align-items: center;
  gap: 80px;
}

.product-thesis p,
.product-thesis blockquote {
  margin: 0;
}

.product-thesis p {
  color: #547067;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.product-thesis p strong {
  color: #17342e;
}

.product-thesis blockquote {
  color: #17342e;
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 38px);
  font-style: italic;
  line-height: 1.35;
}

.product-intro {
  background: var(--white);
}

.product-intro .section-heading {
  align-items: start;
}

.intro-copy p {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 18px;
}

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

.observation-steps article {
  min-height: 300px;
  padding: 34px 34px 24px 0;
  border-right: 1px solid var(--line);
}

.observation-steps article + article {
  padding-left: 34px;
}

.observation-steps article:last-child {
  padding-right: 0;
  border-right: 0;
}

.observation-steps span {
  display: inline-block;
  margin-bottom: 76px;
  color: #4f756a;
  font-family: var(--serif);
  font-size: 14px;
}

.observation-steps h3 {
  margin-bottom: 14px;
  color: #17342e;
  font-size: 28px;
}

.observation-steps p {
  margin: 0;
  color: var(--muted);
}

.observations-section {
  background: #eef2ec;
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.example-card {
  min-height: 220px;
  padding: 28px;
  border: 1px solid rgba(23, 52, 46, .13);
  border-radius: 18px;
  background: rgba(255, 255, 255, .62);
}

.example-card-wide {
  grid-column: span 2;
  min-height: 200px;
  background:
    radial-gradient(circle at 92% 16%, rgba(128, 214, 176, .18), transparent 28%),
    rgba(255, 255, 255, .72);
}

.example-card span {
  color: #4f756a;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.example-card p {
  max-width: 760px;
  margin: 62px 0 0;
  color: #17342e;
  font-family: var(--serif);
  font-size: clamp(22px, 2.6vw, 34px);
  font-style: italic;
  line-height: 1.35;
}

.significance-section {
  color: var(--white);
  background:
    radial-gradient(circle at 92% 0%, rgba(128, 214, 176, .14), transparent 28%),
    #071816;
}

.significance-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 90px;
}

.significance-section .section-label {
  color: #8da49e;
}

.significance-section h2 {
  margin-bottom: 0;
  font-size: clamp(40px, 5vw, 66px);
  letter-spacing: -.045em;
}

.significance-copy {
  padding-left: 52px;
  border-left: 1px solid rgba(255, 255, 255, .14);
}

.significance-copy p {
  margin-top: 0;
  color: #b9ccc6;
  font-size: 18px;
}

.significance-copy .significance-line {
  margin-top: 36px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: var(--white);
  font-family: var(--serif);
  font-size: 24px;
  font-style: italic;
}

.significance-line strong {
  color: var(--green);
  font-weight: 400;
}

.difference-section {
  background: var(--paper);
}

.difference-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}

.difference-grid article {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 28px;
  min-height: 176px;
  padding: 30px 28px 30px 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.difference-grid article:nth-child(even) {
  padding-right: 0;
  padding-left: 28px;
  border-right: 0;
}

.difference-grid span {
  color: #4f756a;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.difference-grid strong {
  color: #263b35;
  font-size: 17px;
  font-weight: 580;
  line-height: 1.55;
}

.accountability-section {
  background: var(--white);
}

.accountability-panel {
  padding: 72px;
  border: 1px solid rgba(23, 52, 46, .12);
  border-radius: 28px;
  background:
    radial-gradient(circle at 94% 8%, rgba(128, 214, 176, .16), transparent 28%),
    #e8efe7;
}

.accountability-panel h2 {
  max-width: 900px;
  margin-bottom: 28px;
  color: #17342e;
  font-size: clamp(40px, 5vw, 66px);
  letter-spacing: -.045em;
}

.accountability-panel h2 em {
  color: #467a6c;
  font-family: var(--serif);
  font-weight: 400;
}

.accountability-panel > p:last-child {
  max-width: 760px;
  margin: 0;
  color: #52645f;
  font-size: 18px;
}

.product-cta-section {
  color: var(--white);
  background: #153d36;
}

.product-cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: 90px;
}

.product-cta-section .section-label {
  color: #a8c2ba;
}

.product-cta-section h2 {
  margin-bottom: 0;
  font-size: clamp(42px, 5vw, 68px);
  letter-spacing: -.045em;
}

.product-cta-grid > div:last-child p {
  margin-top: 0;
  color: #c5d8d2;
  font-size: 18px;
}

.button-dark {
  margin-top: 18px;
  color: #10221e;
  background: var(--green);
}

.button-dark:hover {
  background: var(--white);
}

.product-footer .footer-brand a {
  text-decoration: none;
}

.trademark-notice {
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  color: #788b86;
  font-size: 11px;
}

#what,
#observations,
#difference {
  scroll-margin-top: 72px;
}

@media (max-width: 980px) {
  .driftinel-hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 42px;
  }

  .signal-item {
    grid-template-columns: 72px 1fr;
  }

  .signal-item small {
    display: none;
  }

  .significance-grid,
  .product-cta-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .significance-copy {
    padding-top: 38px;
    padding-left: 0;
    border-top: 1px solid rgba(255, 255, 255, .14);
    border-left: 0;
  }

  .difference-grid article {
    grid-template-columns: 125px 1fr;
  }
}

@media (max-width: 760px) {
  .driftinel-hero,
  .driftinel-hero-grid {
    min-height: auto;
  }

  .driftinel-hero-grid {
    grid-template-columns: 1fr;
    padding-top: 126px;
    padding-bottom: 68px;
  }

  .driftinel-hero h1 {
    font-size: clamp(58px, 19vw, 90px);
  }

  .observation-map {
    margin-top: 18px;
  }

  .product-thesis-grid,
  .observation-steps,
  .example-grid,
  .difference-grid {
    grid-template-columns: 1fr;
  }

  .product-thesis-grid {
    gap: 24px;
  }

  .observation-steps {
    border-top: 0;
  }

  .observation-steps article,
  .observation-steps article + article {
    min-height: auto;
    padding: 30px 0;
    border-top: 1px solid var(--line);
    border-right: 0;
  }

  .observation-steps span {
    margin-bottom: 38px;
  }

  .example-card,
  .example-card-wide {
    grid-column: span 1;
    min-height: 210px;
  }

  .difference-grid article,
  .difference-grid article:nth-child(even) {
    grid-template-columns: 120px 1fr;
    padding: 28px 0;
    border-right: 0;
  }

  .accountability-panel {
    padding: 44px 24px;
    border-radius: 22px;
  }
}

@media (max-width: 480px) {
  .product-kicker {
    align-items: flex-start;
    line-height: 1.5;
  }

  .signal-item {
    grid-template-columns: 1fr;
    gap: 2px;
    padding: 12px 0;
  }

  .observation-result {
    padding: 18px;
  }

  .difference-grid article,
  .difference-grid article:nth-child(even) {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}