:root {
  --cream: #f2ebe0;
  --cream-deep: #e8dfd0;
  --cream-ink: #d9cfc0;
  --navy: #0b1f33;
  --navy-soft: #16324a;
  --navy-muted: rgba(11, 31, 51, 0.68);
  --navy-faint: rgba(11, 31, 51, 0.1);
  --sea: #1f6f6a;
  --sea-bright: #2a8a84;
  --sea-soft: rgba(31, 111, 106, 0.14);
  --paper: #f7f2e9;
  --font-display: "Instrument Serif", Georgia, serif;
  --font-body: "Sora", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3.5rem;
  --space-xl: 6rem;
  --space-2xl: 8.5rem;
  --max: 72rem;
  --content: 40rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--navy-muted);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(31, 111, 106, 0.09), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 20%, rgba(11, 31, 51, 0.05), transparent 50%),
    linear-gradient(180deg, var(--paper) 0%, var(--cream) 38%, var(--cream-deep) 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

h1,
h2,
h3,
.brand,
.wordmark {
  color: var(--navy);
  font-weight: 400;
}

h1,
h2 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0 0 var(--space-md);
}

h1 {
  font-size: clamp(2.75rem, 7vw, 5.25rem);
  max-width: 11ch;
}

h2 {
  font-size: clamp(2.15rem, 4.5vw, 3.35rem);
  max-width: 16ch;
}

h3 {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-xs);
}

p {
  margin: 0 0 1.1rem;
}

p:last-child {
  margin-bottom: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--navy);
  color: var(--cream);
  border-radius: 2px;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding: 1.1rem 1.5rem;
  mix-blend-mode: multiply;
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.wordmark__mark {
  width: 1.55rem;
  height: 1.55rem;
  flex: none;
}

.header-cta {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--navy);
  border-bottom: 1px solid transparent;
  padding-bottom: 0.15rem;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.header-cta:hover,
.header-cta:focus-visible {
  border-color: var(--sea);
  color: var(--sea);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  overflow: clip;
  isolation: isolate;
}

.hero__atmosphere {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(247, 242, 233, 0.2) 0%, rgba(242, 235, 224, 0.55) 45%, var(--cream) 100%),
    linear-gradient(115deg, #efe6d7 0%, #e7ddd0 42%, #d7e3df 100%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--navy-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--navy-faint) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 85%);
  opacity: 0.7;
}

.hero__chart {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.sonar-ring {
  fill: none;
  stroke: var(--sea);
  stroke-opacity: 0.22;
  stroke-width: 1;
  transform-origin: 1040px 380px;
  animation: sonar 6.5s var(--ease) infinite;
}

.sonar-ring--2 {
  animation-delay: 1.1s;
  stroke-opacity: 0.16;
}

.sonar-ring--3 {
  animation-delay: 2.2s;
  stroke-opacity: 0.1;
}

.course-line {
  stroke-dasharray: 1600;
  stroke-dashoffset: 1600;
  animation: draw-course 2.4s var(--ease) 0.35s forwards;
}

.waypoints circle {
  opacity: 0;
  animation: waypoint-in 0.6s var(--ease) forwards;
}

.waypoints circle:nth-child(1) {
  animation-delay: 1.1s;
}

.waypoints circle:nth-child(2) {
  animation-delay: 1.4s;
}

.waypoints circle:nth-child(3) {
  animation-delay: 1.65s;
}

.waypoints circle:nth-child(4) {
  animation-delay: 1.9s;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 7.5rem 1.5rem 4.5rem;
}

.brand {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 7.5rem);
  line-height: 0.9;
  margin: 0 0 1.25rem;
  letter-spacing: -0.03em;
  opacity: 0;
  transform: translateY(1.25rem);
  animation: rise 1s var(--ease) 0.1s forwards;
}

.hero h1 {
  opacity: 0;
  transform: translateY(1.25rem);
  animation: rise 1s var(--ease) 0.28s forwards;
}

.hero__lede {
  max-width: 28rem;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--navy-soft);
  opacity: 0;
  transform: translateY(1.25rem);
  animation: rise 1s var(--ease) 0.42s forwards;
}

.cta-group {
  margin-top: var(--space-md);
  opacity: 0;
  transform: translateY(1.25rem);
  animation: rise 1s var(--ease) 0.55s forwards;
}

.hero .cta-group {
  margin-top: 1.75rem;
}

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.4rem;
  border: 1px solid var(--navy);
  border-radius: 2px;
  background: var(--navy);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease),
    transform 0.25s var(--ease);
}

.btn:hover,
.btn:focus-visible {
  background: var(--sea);
  border-color: var(--sea);
  color: var(--paper);
}

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

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.btn:disabled:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--cream);
}

.cta-note {
  margin-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--navy-muted);
}

.section {
  padding: var(--space-2xl) 1.5rem;
  position: relative;
}

.section__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section--problem .section__inner,
.section--pilot .section__inner {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 900px) {
  .section--problem .section__inner,
  .section--pilot .section__inner--pilot {
    grid-template-columns: minmax(16rem, 1fr) minmax(20rem, 1.15fr);
    align-items: start;
    gap: 4rem;
  }

  .section--pilot .section__inner--pilot .cta-group {
    grid-column: 2;
    margin-top: 0;
  }
}

.prose {
  max-width: var(--content);
  font-size: 1.0625rem;
}

.prose--narrow {
  max-width: 36rem;
  margin-top: var(--space-lg);
}

.prose__emphasis {
  color: var(--navy);
  font-weight: 500;
}

.divider {
  margin: 0 0 var(--space-md);
  pointer-events: none;
}

.divider svg {
  width: 100%;
  height: clamp(58px, 7vw, 96px);
  overflow: visible;
}

.divider--status {
  margin-bottom: var(--space-lg);
}

.status-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.25rem, 3.5vw, 2.75rem);
}

.status-dot {
  position: relative;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  flex: none;
  opacity: 0;
  transition: opacity 0.6s var(--ease);
}

.divider.is-visible .status-dot {
  opacity: 1;
  transition-delay: calc(var(--n) * 140ms);
}

.status-dot--verified {
  background: #2f8f6b;
}

.status-dot--flagged {
  background: #b8452f;
}

.status-dot--flagged::after {
  content: "";
  position: absolute;
  inset: -7px;
  border-radius: 50%;
  border: 1px solid #b8452f;
  opacity: 0;
}

.divider.is-visible .status-dot--flagged {
  animation: flag-pulse 2.8s ease-in-out 0.9s infinite;
}

.divider.is-visible .status-dot--flagged::after {
  animation: flag-ring-css 2.8s var(--ease) 0.9s infinite;
}

@keyframes flag-ring-css {
  0% {
    transform: scale(0.65);
    opacity: 0.5;
  }
  70% {
    opacity: 0.06;
  }
  100% {
    transform: scale(1.75);
    opacity: 0;
  }
}

.divider__line {
  fill: none;
  stroke-linecap: round;
  stroke-width: 2;
}

.divider__line--draft {
  stroke: var(--navy);
  stroke-opacity: 0.28;
  stroke-width: 1.5;
  stroke-dasharray: 3 11;
  opacity: 0;
  transition: opacity 1.1s var(--ease) 0.15s;
}

.divider__line--plotted {
  stroke: var(--sea);
  stroke-opacity: 0.85;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 1.6s var(--ease) 0.25s;
}

.divider.is-visible .divider__line--draft {
  opacity: 1;
}

.divider.is-visible .divider__line--plotted {
  stroke-dashoffset: 0;
}

.node {
  opacity: 0;
  transition: opacity 0.6s var(--ease);
}

.divider.is-visible .node {
  opacity: 1;
  transition-delay: calc(0.7s + var(--n) * 160ms);
}

.node--draft {
  fill: var(--cream);
  stroke: var(--navy);
  stroke-opacity: 0.35;
  stroke-width: 1.5;
}

.node--pivot {
  fill: var(--cream);
  stroke: var(--sea);
  stroke-width: 2;
}

.node--plotted {
  fill: var(--navy);
}

.divider--waypoint {
  max-width: var(--max);
  margin: 0 auto var(--space-lg);
}

.origin-mark {
  fill: none;
  stroke: var(--sea);
  stroke-width: 2;
  opacity: 0;
  transition: opacity 0.7s var(--ease) 0.1s;
}

.divider.is-visible .origin-mark {
  opacity: 1;
}

.origin-crosshair {
  fill: none;
  stroke: var(--sea);
  stroke-width: 1.25;
  stroke-linecap: round;
  stroke-opacity: 0.7;
  opacity: 0;
  transition: opacity 0.7s var(--ease) 0.28s;
}

.divider.is-visible .origin-crosshair {
  opacity: 1;
}

.origin-ping {
  fill: none;
  stroke: var(--sea);
  stroke-width: 1.25;
  opacity: 0;
  transform-origin: 120px 130px;
}

.divider.is-visible .origin-ping {
  animation: origin-ping 5s var(--ease) 0.8s infinite;
}

.divider.is-visible .origin-ping--2 {
  animation-delay: 2.4s;
}

.divider.is-visible .origin-ping--3 {
  animation-delay: 3.9s;
}

@keyframes origin-ping {
  0% {
    transform: scale(1);
    opacity: 0.45;
  }
  70% {
    opacity: 0.06;
  }
  100% {
    transform: scale(2.7);
    opacity: 0;
  }
}

.course-ahead {
  fill: none;
  stroke: var(--sea);
  stroke-opacity: 0.5;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 3 12;
  opacity: 0;
  transition: opacity 1.2s var(--ease) 0.5s;
}

.divider.is-visible .course-ahead {
  opacity: 1;
}

.future-waypoint {
  fill: none;
  stroke: var(--navy);
  stroke-opacity: 0.38;
  stroke-width: 1.5;
  opacity: 0;
  transition: opacity 0.6s var(--ease);
}

.divider.is-visible .future-waypoint {
  opacity: 1;
  transition-delay: calc(1s + var(--n) * 200ms);
}

@keyframes flag-pulse {
  0%,
  100% {
    background-color: #b8452f;
  }
  50% {
    background-color: #dc9683;
  }
}

.section--process,
.section--proof,
.section--pilot {
  padding-top: var(--space-lg);
}

.section--process {
  background:
    linear-gradient(180deg, transparent, rgba(232, 223, 208, 0.65) 20%, rgba(232, 223, 208, 0.65) 80%, transparent);
}

.process {
  list-style: none;
  margin: var(--space-xl) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--navy-faint);
}

.process__step {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.25rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--navy-faint);
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.process__step.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition-delay: calc(var(--i) * 90ms);
}

.process__index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--sea);
  padding-top: 0.35rem;
}

.process__step p {
  max-width: 38rem;
  margin: 0;
}

@media (min-width: 900px) {
  .process {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-top: none;
    gap: 0 3rem;
  }

  .process__step {
    border-top: 1px solid var(--navy-faint);
  }

  .process__step:nth-child(1),
  .process__step:nth-child(2) {
    border-top: 1px solid var(--navy-faint);
  }
}

.pipeline {
  list-style: none;
  margin: var(--space-lg) 0 0;
  padding: 1.5rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 0;
  border-top: 1px solid var(--navy-faint);
  border-bottom: 1px solid var(--navy-faint);
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 1.5vw, 0.85rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--navy);
}

.pipeline li {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.pipeline li:not(:last-child)::after {
  content: "";
  width: 2rem;
  height: 1px;
  background: var(--sea);
  opacity: 0.55;
}

.section--pilot {
  padding-bottom: var(--space-2xl);
}


.site-footer {
  padding: 2.5rem 1.5rem 3rem;
  border-top: 1px solid var(--navy-faint);
  background: rgba(232, 223, 208, 0.45);
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark--footer {
  font-size: 1.25rem;
}

.site-footer p {
  margin: 0;
  font-size: 0.9rem;
  max-width: 28rem;
}

.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

@keyframes draw-course {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes waypoint-in {
  to {
    opacity: 1;
  }
}

@keyframes sonar {
  0% {
    transform: scale(0.72);
    opacity: 0.7;
  }
  70% {
    opacity: 0.15;
  }
  100% {
    transform: scale(1.15);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .brand,
  .hero h1,
  .hero__lede,
  .cta-group,
  .course-line,
  .waypoints circle,
  .sonar-ring,
  .process__step,
  .reveal,
  .divider__line,
  .node {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
    stroke-dashoffset: 0 !important;
  }

  .status-dot,
  .origin-mark,
  .origin-crosshair,
  .course-ahead,
  .future-waypoint {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
  }

  .origin-ping {
    animation: none !important;
    opacity: 0 !important;
  }

  .status-dot--flagged::after {
    animation: none !important;
    opacity: 0 !important;
  }
}

@media (max-width: 640px) {
  .hero__content {
    padding-top: 6.5rem;
    padding-bottom: 3.25rem;
  }

  .process__step {
    grid-template-columns: 3rem 1fr;
    gap: 0.85rem;
  }

  .pipeline {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
  }

  .pipeline li:not(:last-child)::after {
    width: 1px;
    height: 1.1rem;
    margin-left: 0.35rem;
  }

  .pipeline li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.55rem;
  }
}