:root {
  --navy-950: #06111f;
  --navy-900: #0a1a2f;
  --navy-800: #122843;
  --navy-700: #1c3a5e;
  --navy-100: #dde3ec;
  --navy-50: #f6f4ef;
  --gold-500: #d4a857;
  --gold-400: #e3c07f;
  --orange-600: #c41e3a;
  --flag-red: #c41e3a;
  --ink: #0f1a2a;
  --muted: #4a5568;
  --line: #e6e1d6;
  --white: #ffffff;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(10, 26, 47, 0.06), 0 14px 34px -14px rgba(10, 26, 47, 0.22);
  --display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

h1,
h2,
h3 {
  font-family: var(--display);
  line-height: 1.12;
  margin: 0;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

.container {
  width: min(1180px, 100% - 32px);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 100;
  background: var(--gold-500);
  color: var(--navy-950);
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 700;
}

.skip-link:focus {
  left: 16px;
}

:focus-visible {
  outline: 3px solid var(--gold-500);
  outline-offset: 3px;
  border-radius: 6px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 999px;
  font-family: var(--body);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

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

.btn-gold {
  background: var(--gold-500);
  color: var(--navy-950);
}

.btn-gold:hover {
  background: var(--gold-400);
}

.btn-navy {
  background: var(--navy-900);
  color: var(--white);
}

.btn-navy:hover {
  background: var(--navy-800);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--white);
}

.btn-outline-light:hover {
  border-color: var(--white);
}

.btn-outline {
  border-color: var(--navy-900);
  color: var(--navy-900);
}

.btn-outline:hover {
  background: var(--navy-900);
  color: var(--white);
}

.arrow {
  width: 18px;
  height: 18px;
  flex: none;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 26, 47, 0.97);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid rgba(212, 168, 87, 0.25);
}

.flag-bar {
  height: 3px;
  background: linear-gradient(90deg, var(--gold-500) 0 50%, var(--flag-red) 50% 100%);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 44px;
  height: 44px;
}

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-name strong {
  font-family: var(--body);
  font-size: 19px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.01em;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}

.brand-name span {
  margin-top: 6px;
  font-family: var(--body);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: rgba(221, 227, 236, 0.85);
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav a {
  white-space: nowrap;
  padding: 10px 12px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--navy-100);
  text-decoration: none;
}

.nav a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.07);
}

.nav .btn {
  margin-left: 10px;
  padding: 10px 18px;
  min-height: 42px;
}

.nav .btn:hover {
  background: var(--gold-400);
}

.menu-toggle {
  display: none;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1100px 520px at 85% -10%, rgba(212, 168, 87, 0.18), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(28, 58, 94, 0.7), transparent 60%),
    var(--navy-950);
  color: var(--white);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
  padding: 96px 0 104px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange-600);
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: currentColor;
}

.hero .eyebrow {
  color: var(--gold-500);
}

.hero h1 {
  margin-top: 22px;
  font-size: clamp(40px, 5.4vw, 64px);
  font-weight: 700;
}

.hero h1 em {
  font-style: normal;
  color: var(--gold-500);
}

.hero-lead {
  margin-top: 24px;
  max-width: 620px;
  font-size: 19px;
  color: var(--navy-100);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.hero-note {
  margin-top: 28px;
  font-size: 14px;
  color: rgba(223, 230, 245, 0.75);
}

.eco-stack {
  display: grid;
  gap: 14px;
}

.eco-chip {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.eco-chip:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(212, 168, 87, 0.6);
  transform: translateX(4px);
}

.eco-chip .icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(212, 168, 87, 0.16);
  color: var(--gold-500);
}

.eco-chip .icon svg {
  width: 24px;
  height: 24px;
}

.eco-chip small {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-400);
}

.eco-chip strong {
  display: block;
  margin-top: 2px;
  font-family: var(--display);
  font-size: 17px;
}

.eco-chip span.domain {
  display: block;
  font-size: 14px;
  color: var(--navy-100);
}

.eco-chip .arrow {
  color: var(--gold-500);
}

.eco-hub {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--gold-500);
  color: var(--navy-950);
}

.eco-hub img {
  width: 40px;
  height: 40px;
}

.eco-hub strong {
  display: block;
  font-family: var(--display);
  font-size: 16px;
}

.eco-hub span {
  font-size: 14px;
  font-weight: 500;
}

/* Sections */
.section {
  padding: 104px 0;
}

.section-tint {
  background: var(--navy-50);
}

.section-dark {
  background: var(--navy-900);
  color: var(--white);
}

.section-head {
  max-width: 760px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.section-head.center .eyebrow {
  justify-content: center;
}

.section-head h2 {
  margin-top: 16px;
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 700;
  color: var(--navy-900);
}

.section-dark .section-head h2 {
  color: var(--white);
}

.section-dark .eyebrow {
  color: var(--gold-500);
}

.section-head p {
  margin-top: 18px;
  font-size: 18px;
  color: var(--muted);
}

.section-dark .section-head p {
  color: var(--navy-100);
}

/* Platform cards */
.platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.platform {
  display: flex;
  flex-direction: column;
  padding: 32px;
  border-radius: 22px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.platform-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.platform .icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(212, 168, 87, 0.18);
  color: var(--orange-600);
}

.platform .icon svg {
  width: 28px;
  height: 28px;
}

.platform .tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--navy-50);
  color: var(--navy-800);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.platform h3 {
  margin-top: 24px;
  font-size: 23px;
  color: var(--navy-900);
}

.platform .domain {
  margin-top: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--orange-600);
}

.platform p.desc {
  margin-top: 16px;
  color: var(--muted);
}

.checks {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  flex: 1;
}

.checks li {
  position: relative;
  padding-left: 30px;
  font-size: 15.5px;
  color: var(--ink);
}

.checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--navy-900)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23D4A857' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E")
    center / 12px no-repeat;
}

.platform .btn {
  margin-top: 28px;
  align-self: flex-start;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.step {
  position: relative;
  padding: 28px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--display);
  font-size: 34px;
  font-weight: 700;
  color: var(--gold-500);
}

.step h3 {
  margin-top: 14px;
  font-size: 19px;
}

.step p {
  margin-top: 10px;
  font-size: 15.5px;
  color: var(--navy-100);
}

.step .where {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold-400);
  text-decoration: none;
}

.step .where:hover {
  text-decoration: underline;
}

/* Audience split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.audience {
  padding: 44px;
  border-radius: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.audience.dark {
  background: var(--navy-900);
  border-color: var(--navy-900);
  color: var(--white);
}

.audience h2 {
  margin-top: 16px;
  font-size: clamp(26px, 2.8vw, 34px);
  font-weight: 700;
  color: var(--navy-900);
}

.audience.dark h2 {
  color: var(--white);
}

.audience.dark .eyebrow {
  color: var(--gold-500);
}

.audience p.lead {
  margin-top: 16px;
  color: var(--muted);
}

.audience.dark p.lead {
  color: var(--navy-100);
}

.audience.dark .checks li {
  color: var(--white);
}

.audience.dark .checks li::before {
  background-color: var(--gold-500);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230A1A2F' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E");
}

.audience .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

/* About */
.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.about-copy p + p {
  margin-top: 18px;
}

.about-copy p {
  color: var(--muted);
  font-size: 18px;
}

.about-copy .section-head p {
  margin-top: 18px;
}

.quote {
  margin-top: 32px;
  padding: 24px 28px;
  border-left: 4px solid var(--gold-500);
  background: var(--navy-50);
  border-radius: 0 14px 14px 0;
  font-family: var(--display);
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-900);
}

.diff {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.diff li {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
}

.diff h3 {
  font-size: 17px;
  color: var(--navy-900);
}

.diff p {
  margin-top: 8px;
  font-size: 15.5px;
  color: var(--muted);
}

/* FAQ */
.faq {
  max-width: 860px;
  margin: 48px auto 0;
  display: grid;
  gap: 12px;
}

.faq details {
  border-radius: 14px;
  background: var(--white);
  border: 1px solid var(--line);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  font-family: var(--display);
  font-weight: 700;
  font-size: 17px;
  color: var(--navy-900);
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  flex: none;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--navy-50);
  font-size: 20px;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "\2212";
}

.faq details p {
  padding: 0 24px 22px;
  color: var(--muted);
}

/* Contact */
.contact {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.contact-card {
  padding: 36px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.contact-list li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: center;
}

.contact-list .icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(212, 168, 87, 0.16);
  color: var(--gold-500);
}

.contact-list .icon svg {
  width: 22px;
  height: 22px;
}

.contact-list small {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-400);
}

.contact-list a,
.contact-list address {
  font-style: normal;
  font-size: 17px;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.contact-list a:hover {
  text-decoration: underline;
}

.contact .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

/* Footer */
.site-footer {
  background: var(--navy-950);
  color: var(--navy-100);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 72px 0 56px;
}

.site-footer .brand-name strong {
  color: var(--white);
}

.footer-about {
  margin-top: 18px;
  max-width: 340px;
  font-size: 15px;
  color: rgba(223, 230, 245, 0.8);
}

.site-footer h2 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white);
}

.site-footer ul {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.site-footer ul li {
  font-size: 15px;
}

.site-footer ul a {
  font-size: 15px;
  text-decoration: none;
  color: var(--navy-100);
}

.site-footer ul a:hover {
  color: var(--gold-500);
}

.disclaimer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  font-size: 13px;
  color: rgba(223, 230, 245, 0.7);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0 28px;
  font-size: 13px;
  color: rgba(223, 230, 245, 0.7);
}

.footer-bottom a {
  color: inherit;
}

/* Legal pages */
.page-hero {
  background: var(--navy-950);
  color: var(--white);
  padding: 72px 0 56px;
}

.page-hero h1 {
  margin-top: 16px;
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 700;
}

.page-hero p {
  margin-top: 12px;
  color: var(--navy-100);
}

.page-hero .eyebrow {
  color: var(--gold-500);
}

.prose {
  max-width: 780px;
  padding: 64px 0 96px;
}

.prose h2 {
  margin-top: 40px;
  font-size: 24px;
  color: var(--navy-900);
}

.prose p,
.prose li {
  color: var(--muted);
}

.prose p {
  margin-top: 14px;
}

.prose ul {
  margin: 14px 0 0;
  padding-left: 22px;
}

.prose a {
  color: var(--navy-700);
  font-weight: 600;
}

.not-found {
  display: grid;
  place-items: center;
  min-height: 60vh;
  text-align: center;
  padding: 80px 0;
}

.not-found h1 {
  font-size: clamp(36px, 5vw, 56px);
  color: var(--navy-900);
}

.not-found p {
  margin-top: 14px;
  color: var(--muted);
}

.not-found .btn {
  margin-top: 28px;
}

/* Responsive */
@media (max-width: 1240px) {
  .nav a:not(.btn) {
    padding: 10px 8px;
    font-size: 14px;
  }
}

@media (max-width: 1080px) {
  .platforms {
    grid-template-columns: 1fr;
    max-width: 720px;
    margin-inline: auto;
  }

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

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

@media (max-width: 1100px) {
  .menu-toggle {
    display: inline-grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    color: var(--white);
    cursor: pointer;
  }

  .menu-toggle svg {
    width: 22px;
    height: 22px;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px 16px 20px;
    background: var(--navy-900);
    border-bottom: 1px solid rgba(212, 168, 87, 0.25);
    box-shadow: 0 16px 32px -16px rgba(15, 23, 42, 0.25);
  }

  .nav.open {
    display: flex;
  }

  .nav a:not(.btn) {
    padding: 12px;
    font-size: 16px;
  }

  .nav .btn {
    margin: 8px 0 0;
  }
}

@media (max-width: 900px) {
  .hero-inner,
  .about,
  .contact,
  .split {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    padding: 72px 0 80px;
    gap: 44px;
  }

  .section {
    padding: 80px 0;
  }

  .audience {
    padding: 32px;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 16px;
  }

  .steps,
  .diff,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions .btn,
  .audience .actions .btn,
  .contact .actions .btn {
    width: 100%;
  }

  .platform,
  .contact-card {
    padding: 26px;
  }

  .eco-chip {
    grid-template-columns: 44px 1fr;
  }

  .eco-chip .arrow {
    display: none;
  }

  .brand-name strong {
    font-size: 18px;
  }
}

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

  .btn,
  .eco-chip {
    transition: none;
  }
}