:root {
  --ink: #061824;
  --navy: #071b2a;
  --deep: #0d2b3e;
  --blue: #0e5d72;
  --aqua: #59e3c3;
  --aqua-soft: #a8f1e3;
  --sand: #f4efe4;
  --mist: #e8f4f1;
  --white: #ffffff;
  --muted: #6b7c86;
  --line: rgba(7, 27, 42, 0.12);
  --shadow: 0 20px 60px rgba(3, 20, 29, 0.18);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shell: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fbfcfb;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

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

p {
  margin: 0 0 1rem;
}

h1, h2, h3 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

h1 {
  font-size: clamp(3.4rem, 8vw, 6.9rem);
  max-width: 860px;
}

h2 {
  font-size: clamp(2.2rem, 5vw, 4.3rem);
}

h3 {
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

ul {
  padding-left: 1.05rem;
  margin: 1rem 0 0;
}

li + li {
  margin-top: 0.4rem;
}

.shell {
  width: min(var(--shell), calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: 110px 0;
}

.section-dark {
  color: var(--white);
  background: var(--navy);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  transform: translateY(-150%);
  background: var(--aqua);
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 8px;
  z-index: 999;
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
}

.site-header.scrolled {
  background: rgba(7, 27, 42, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
}

.nav {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.94rem;
}

.nav-links a:not(.button):hover {
  color: var(--aqua-soft);
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  border-radius: 2px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid var(--aqua);
  background: var(--aqua);
  color: #06212d;
  font-weight: 750;
  box-shadow: 0 12px 28px rgba(89, 227, 195, 0.22);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px rgba(89, 227, 195, 0.28);
}

.button-small {
  min-height: 40px;
  padding: 0 16px;
  font-size: 0.9rem;
}

.button-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: none;
}

.button-ghost:hover {
  background: rgba(255, 255, 255, 0.09);
  box-shadow: none;
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding: 150px 0 90px;
  overflow: hidden;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 27, 42, 0.95) 0%, rgba(7, 27, 42, 0.86) 42%, rgba(7, 27, 42, 0.28) 100%),
    linear-gradient(180deg, rgba(7, 27, 42, 0) 52%, rgba(7, 27, 42, 1) 100%),
    url("assets/images/seagrass.webp") center / cover no-repeat;
}

.hero-backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 25%, rgba(89, 227, 195, 0.22), transparent 30%), radial-gradient(circle at 10% 90%, rgba(14, 93, 114, 0.6), transparent 34%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.55fr);
  align-items: end;
  gap: 56px;
}

.hero-copy {
  padding-top: 60px;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--aqua);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-lede {
  max-width: 760px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.trust-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 36px;
}

.trust-row span {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.82);
  padding: 9px 13px;
  border-radius: 999px;
  font-size: 0.9rem;
}

.event-card {
  background: rgba(8, 30, 44, 0.74);
  border: 1px solid rgba(168, 241, 227, 0.22);
  box-shadow: var(--shadow);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(20px);
}

.event-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--aqua-soft);
  font-size: 0.86rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status-dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: var(--aqua);
  box-shadow: 0 0 0 8px rgba(89, 227, 195, 0.1);
}

.event-card h2 {
  font-size: 1.7rem;
  margin-bottom: 20px;
}

.event-card dl {
  display: grid;
  gap: 14px;
  margin: 0;
}

.event-card dl div {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 14px;
}

.event-card dt {
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.event-card dd {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.9);
}

.hash-line {
  margin-top: 24px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(89, 227, 195, 0.1);
  color: var(--aqua-soft);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.85rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 70px;
  align-items: center;
}

.align-start {
  align-items: start;
}

.copy-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: 0 18px 46px rgba(7, 27, 42, 0.08);
  color: #2a3b45;
  font-size: 1.08rem;
}

.section-heading {
  width: min(850px, 100%);
  margin: 0 auto 54px;
  text-align: center;
}

.section-heading.left {
  margin-inline: 0;
  text-align: left;
}

.section-heading p:not(.eyebrow) {
  margin: 18px auto 0;
  max-width: 690px;
  color: var(--muted);
  font-size: 1.08rem;
}

.section-heading.left p:not(.eyebrow) {
  margin-left: 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.step {
  min-height: 280px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: 0 18px 46px rgba(7, 27, 42, 0.06);
}

.step-number {
  display: inline-flex;
  margin-bottom: 42px;
  color: var(--aqua);
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.step p, .capability p, .deployment-card p, .market-card p, .dual-columns p {
  color: var(--muted);
}

.image-band {
  position: relative;
  min-height: 460px;
  padding: 0;
  overflow: hidden;
}

.image-band picture,
.image-band img {
  width: 100%;
  height: 100%;
  min-height: 460px;
  object-fit: cover;
}

.image-band-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  align-items: end;
  background: linear-gradient(180deg, rgba(7, 27, 42, 0.08), rgba(7, 27, 42, 0.84));
}

.quote {
  padding-bottom: 70px;
}

.quote p {
  margin: 0;
  max-width: 840px;
  color: var(--white);
  font-size: clamp(2rem, 5vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
  font-weight: 780;
}

.market-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.market-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 100%;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 46px rgba(7, 27, 42, 0.08);
}

.market-card picture,
.market-card img {
  width: 100%;
  height: 245px;
  object-fit: cover;
}

.market-card div {
  padding: 26px;
}

.tag {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--blue) !important;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.market-card ul {
  color: #273d48;
  font-weight: 650;
}

.dual-use {
  background:
    radial-gradient(circle at 15% 20%, rgba(89, 227, 195, 0.18), transparent 26%),
    radial-gradient(circle at 90% 75%, rgba(14, 93, 114, 0.7), transparent 28%),
    var(--navy);
}

.dual-columns {
  display: grid;
  gap: 18px;
}

.dual-columns article {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.05);
}

.dual-columns p {
  color: rgba(255, 255, 255, 0.7);
  margin-top: 12px;
}

.proof {
  background: linear-gradient(180deg, #fbfcfb, #eef8f5);
}

.proof-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.75fr);
  gap: 56px;
  align-items: center;
}

.credential {
  border-radius: var(--radius-lg);
  background: #071b2a;
  color: var(--white);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.credential-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 20px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--aqua-soft);
  font-size: 0.9rem;
  font-weight: 800;
}

.verified {
  border-radius: 999px;
  background: rgba(89, 227, 195, 0.14);
  color: var(--aqua);
  padding: 7px 10px;
}

.credential-body {
  display: grid;
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.credential-body div {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 16px;
  padding: 18px 22px;
  background: #071b2a;
}

.credential-body span {
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.credential-body strong {
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.98rem;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 64px;
}

.capability {
  padding: 24px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(7, 27, 42, 0.1);
  border-radius: var(--radius-md);
}

.capability p {
  margin-top: 12px;
}

.deployment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.deployment-card {
  min-height: 220px;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--white), #f5faf8);
  border: 1px solid var(--line);
  box-shadow: 0 18px 46px rgba(7, 27, 42, 0.07);
}

.deployment-card p {
  margin-top: 18px;
}

.contact {
  background:
    linear-gradient(90deg, rgba(7, 27, 42, 0.94), rgba(7, 27, 42, 0.78)),
    url("assets/images/kelp.webp") center / cover no-repeat;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.65fr);
  gap: 70px;
  align-items: start;
}

.contact p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
  font-size: 1.08rem;
  margin-top: 22px;
}

.contact-points {
  display: grid;
  gap: 12px;
  margin-top: 34px;
}

.contact-points span {
  padding: 15px 18px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  color: rgba(255, 255, 255, 0.9);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 8px;
  font-weight: 750;
  font-size: 0.92rem;
}

input, select, textarea {
  width: 100%;
  border: 1px solid rgba(7, 27, 42, 0.16);
  border-radius: 14px;
  padding: 13px 14px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}

textarea {
  resize: vertical;
}

input:focus, select:focus, textarea:focus {
  outline: 3px solid rgba(89, 227, 195, 0.35);
  border-color: var(--blue);
}

.form-note {
  color: var(--muted) !important;
  font-size: 0.86rem !important;
  margin: 0 !important;
}

.site-footer {
  background: #04131e;
  color: rgba(255, 255, 255, 0.76);
  padding: 50px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr 0.6fr;
  gap: 40px;
}

.site-footer h2 {
  font-size: 0.9rem;
  margin-bottom: 14px;
  color: var(--aqua-soft);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.site-footer p {
  max-width: 460px;
  margin-top: 14px;
}

.site-footer a {
  display: block;
  margin-top: 8px;
}

.site-footer a:hover {
  color: var(--aqua-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 980px) {
  .section {
    padding: 86px 0;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    inset: 74px 20px auto 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border-radius: 20px;
    background: rgba(7, 27, 42, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .hero-grid,
  .split,
  .proof-grid,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .steps,
  .market-grid,
  .capability-grid,
  .deployment-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .event-card {
    max-width: 520px;
  }
}

@media (max-width: 680px) {
  .shell {
    width: min(100% - 28px, var(--shell));
  }

  .hero {
    padding-top: 126px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .steps,
  .market-grid,
  .capability-grid,
  .deployment-grid {
    grid-template-columns: 1fr;
  }

  .copy-panel,
  .contact-form,
  .deployment-card {
    padding: 24px;
  }

  .market-card picture,
  .market-card img {
    height: 220px;
  }

  .credential-body div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}