:root {
  color-scheme: light dark;
  --canvas: #f4f7f8;
  --surface: #ffffff;
  --surface-soft: #e8f1f2;
  --ink: #14243c;
  --muted: #536273;
  --accent: #147f86;
  --accent-strong: #0b6269;
  --accent-text: #f7ffff;
  --border: #cad6dc;
  --navy: #152642;
  --radius: 16px;
  --shadow: 0 24px 70px rgba(21, 38, 66, 0.14);
  font-family: ui-rounded, "SF Pro Rounded", "Avenir Next", Avenir, system-ui, sans-serif;
  font-synthesis: none;
}

@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #101a2b;
    --surface: #17253a;
    --surface-soft: #1c3544;
    --ink: #edf5f7;
    --muted: #b4c3cd;
    --accent: #52c1c6;
    --accent-strong: #7ad2d6;
    --accent-text: #0d1728;
    --border: #35485b;
    --navy: #0d1728;
    --shadow: 0 24px 70px rgba(3, 9, 18, 0.42);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  padding: 0.65rem 1rem;
  border-radius: 10px;
  background: var(--ink);
  color: var(--canvas);
  transform: translateY(-150%);
}

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

.site-header,
.site-footer,
.hero,
.section {
  width: min(100% - 2rem, 74rem);
  margin-inline: auto;
}

.site-header {
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 44px;
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img {
  border-radius: 11px;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  white-space: nowrap;
}

nav a {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

nav a:hover {
  color: var(--accent-strong);
}

.hero {
  min-height: calc(100dvh - 4.5rem);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(20rem, 1.1fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 6rem);
  padding-block: clamp(2.5rem, 8vh, 5rem);
}

.hero-copy {
  max-width: 34rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

h1 {
  max-width: 10ch;
  margin-bottom: 1.25rem;
  font-size: clamp(3rem, 7vw, 5.75rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.15rem, 4vw, 3.75rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

h3 {
  margin-bottom: 0.35rem;
  font-size: 1.2rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.hero-summary {
  max-width: 30rem;
  margin-bottom: 2rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

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

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 720;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button-primary {
  background: var(--accent-strong);
  color: var(--accent-text);
}

.button-secondary {
  border-color: var(--border);
  background: var(--surface);
  color: var(--ink);
}

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

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

.hero-visual {
  width: min(100%, 27rem);
  margin: 0 auto;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 8px);
  background: var(--surface);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}

.hero-visual img,
.comparison-visual img,
.share-visual img {
  width: 100%;
  border-radius: var(--radius);
}

.section {
  padding-block: clamp(5rem, 11vw, 9rem);
}

.section-heading {
  max-width: 44rem;
  margin-bottom: clamp(2.5rem, 6vw, 5rem);
}

.section-heading p,
.comparison-copy > p,
.share-copy > p,
.lifetime > div > p,
.privacy p {
  color: var(--muted);
  font-size: 1.08rem;
}

.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}

.process-list li {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1.25rem;
  padding-block: 1.6rem;
  border-bottom: 1px solid var(--border);
}

.process-number {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--surface-soft);
  color: var(--accent-strong);
  font-weight: 780;
}

.process-list p,
.plain-list,
.credit-note {
  margin-bottom: 0;
  color: var(--muted);
}

.comparison,
.share {
  display: grid;
  align-items: center;
  gap: clamp(3rem, 9vw, 8rem);
}

.comparison {
  grid-template-columns: minmax(17rem, 0.72fr) minmax(0, 1.28fr);
}

.share {
  grid-template-columns: minmax(0, 1.15fr) minmax(17rem, 0.85fr);
}

.comparison-visual,
.share-visual {
  margin: 0;
  padding: 0.65rem;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 6px);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.comparison-visual {
  transform: rotate(-1deg);
}

.share-visual {
  transform: rotate(1deg);
}

.plain-list {
  display: grid;
  gap: 0.65rem;
  margin-top: 1.5rem;
  padding-left: 1.2rem;
}

.plain-list li::marker {
  color: var(--accent);
}

.lifetime {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.9fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: end;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.price-story {
  display: grid;
  grid-template-columns: auto minmax(2rem, 1fr) auto;
  align-items: center;
  gap: 1rem;
}

.price {
  display: block;
  font-size: clamp(2.3rem, 5vw, 4.5rem);
  font-weight: 790;
  line-height: 1;
  letter-spacing: -0.055em;
}

.price-label {
  display: block;
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.price-rule {
  height: 1px;
  background: var(--border);
}

.credit-note {
  grid-column: 1 / -1;
  max-width: 42rem;
}

.privacy {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
  gap: clamp(2rem, 8vw, 7rem);
  align-items: start;
}

.privacy-statement h2 {
  max-width: 11ch;
}

.privacy-details {
  padding-left: 1.5rem;
  border-left: 3px solid var(--accent);
}

.privacy-details p:last-child {
  margin-bottom: 0;
}

.site-footer {
  min-height: 7rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
}

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

.footer-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.25rem;
}

.footer-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.page-main {
  min-height: calc(100dvh - 11.5rem);
}

.page-hero {
  width: min(100% - 2rem, 74rem);
  margin-inline: auto;
  padding-block: clamp(4rem, 10vw, 7rem) clamp(3rem, 7vw, 5rem);
  border-bottom: 1px solid var(--border);
}

.page-hero h1 {
  max-width: 14ch;
  font-size: clamp(3rem, 7vw, 5.25rem);
}

.page-hero > p:not(.eyebrow) {
  max-width: 44rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.contact-card {
  width: min(100% - 2rem, 74rem);
  margin: clamp(2.5rem, 6vw, 5rem) auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(14rem, 0.65fr);
  gap: clamp(2rem, 7vw, 6rem);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.contact-card p:last-child,
.legal-section > *:last-child,
.legal-section li:last-child {
  margin-bottom: 0;
}

.contact-meta {
  display: grid;
  align-content: start;
  gap: 1rem;
  margin: 0;
}

.contact-meta div {
  display: grid;
  gap: 0.2rem;
}

.contact-meta dt {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 720;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-meta dd {
  margin: 0;
  font-weight: 650;
}

.legal-layout {
  width: min(100% - 2rem, 74rem);
  margin-inline: auto;
  padding-block: clamp(3rem, 8vw, 7rem);
}

.legal-layout-narrow {
  max-width: 54rem;
}

.legal-section {
  padding-block: clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--border);
}

.legal-section:first-child {
  padding-top: 0;
}

.legal-section:last-child {
  border-bottom: 0;
}

.legal-section h2 {
  max-width: 18ch;
  font-size: clamp(1.85rem, 4vw, 2.7rem);
  letter-spacing: -0.035em;
}

.legal-section h3 {
  margin-top: 2rem;
}

.legal-section p,
.legal-section li {
  max-width: 48rem;
  color: var(--muted);
}

.legal-section strong,
.legal-section a {
  color: var(--ink);
}

.legal-section ul,
.legal-section ol {
  display: grid;
  gap: 0.65rem;
  padding-left: 1.25rem;
}

.summary-panel {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.faq-list {
  border-top: 1px solid var(--border);
}

.faq-list details {
  border-bottom: 1px solid var(--border);
}

.faq-list summary {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 720;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  color: var(--accent-strong);
  font-size: 1.4rem;
  font-weight: 500;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details > div {
  padding: 0 2.5rem 1.5rem 0;
}

.invite-main {
  min-height: calc(100dvh - 4.5rem);
  display: grid;
  place-items: center;
  width: min(100% - 2rem, 74rem);
  margin-inline: auto;
  padding-block: 4rem;
}

.invite-card {
  width: min(100%, 38rem);
  padding: clamp(1.75rem, 6vw, 4rem);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 8px);
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: center;
}

.invite-card .brand-mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 2rem;
  border-radius: 18px;
}

.invite-card h1 {
  max-width: 12ch;
  margin-inline: auto;
  font-size: clamp(2.5rem, 7vw, 4.25rem);
}

.invite-card > p {
  color: var(--muted);
}

.invite-actions {
  display: grid;
  gap: 0.75rem;
  margin-top: 2rem;
}

.quiet-note {
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
    padding-block: 0.75rem;
  }

  nav {
    width: 100%;
    justify-content: space-between;
    gap: 0.75rem;
    overflow-x: auto;
  }

  .hero,
  .comparison,
  .share,
  .lifetime,
  .privacy {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    gap: 3rem;
    padding-block: 3.5rem 5rem;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.5rem);
  }

  .hero-visual,
  .comparison-visual,
  .share-visual {
    width: min(100%, 22rem);
    margin-inline: auto;
    transform: none;
  }

  .share-copy {
    order: 1;
  }

  .share-visual {
    order: 2;
  }

  .price-story {
    grid-template-columns: 1fr 1fr;
  }

  .price-rule {
    display: none;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 0.5rem;
    padding-block: 2rem;
  }

  .footer-links {
    align-items: flex-start;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 0 1rem;
  }

  .footer-links p {
    width: 100%;
  }

  .contact-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 390px) {
  .site-header,
  .site-footer,
  .hero,
  .section,
  .page-hero,
  .contact-card,
  .legal-layout,
  .invite-main {
    width: min(100% - 1.25rem, 74rem);
  }

  nav a {
    font-size: 0.82rem;
  }

  .home-section-link {
    display: none;
  }

  .hero-actions,
  .button {
    width: 100%;
  }
}

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

  .button,
  .skip-link {
    transition: none;
  }
}