:root {
  --bg: #f2f6fa;
  --bg-deep: #e6edf5;
  --surface: #ffffff;
  --surface-soft: #e8eff7;
  --ink: #172d48;
  --muted: #5b6d82;
  --line: rgba(23, 45, 72, 0.14);
  --blue: #244f7f;
  --blue-bright: #2e659e;
  --slate: #8aa0b7;
  --sand: #e7dfd2;
  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow: 0 30px 80px rgba(25, 53, 82, 0.14);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Baskerville, Georgia, serif;
  --sans: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 10%, rgba(114, 154, 195, 0.13), transparent 30rem),
    radial-gradient(circle at 88% 22%, rgba(65, 105, 145, 0.10), transparent 26rem),
    linear-gradient(180deg, #f8fafc 0%, var(--bg) 30%, #edf2f7 100%);
  font-family: var(--sans);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.3;
  background-image: radial-gradient(rgba(29, 57, 83, 0.12) 0.55px, transparent 0.55px);
  background-size: 7px 7px;
  mask-image: linear-gradient(to bottom, black, transparent 55%);
}

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

a {
  color: inherit;
}

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

h1,
h2 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

h1 {
  margin-bottom: 1.5rem;
  font-size: clamp(3.25rem, 6.4vw, 6.7rem);
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.25rem, 4.2vw, 4.15rem);
}

h3 {
  margin-bottom: 0.55rem;
  font-size: 1.18rem;
  line-height: 1.25;
}

.wrap {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  color: white;
  background: var(--ink);
  border-radius: 999px;
  transform: translateY(-200%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1.5rem;
  min-height: 76px;
  padding: 0.7rem max(20px, calc((100vw - 1160px) / 2));
  background: rgba(248, 250, 252, 0.82);
  border-bottom: 1px solid rgba(23, 45, 72, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  width: max-content;
  text-decoration: none;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(23, 45, 72, 0.16);
}

.brand-copy {
  display: grid;
  line-height: 1.05;
}

.brand-copy strong {
  font-family: var(--serif);
  font-size: 1.18rem;
}

.brand-copy small {
  margin-top: 0.28rem;
  color: var(--muted);
  font-size: 0.67rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-header nav {
  display: flex;
  gap: clamp(1rem, 2vw, 2rem);
}

.site-header nav a {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  color: var(--blue);
}

.beta-chip {
  justify-self: end;
  padding: 0.54rem 0.82rem;
  color: var(--blue);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.76fr);
  gap: clamp(3rem, 7vw, 8rem);
  align-items: center;
  min-height: calc(100svh - 76px);
  padding-block: clamp(4rem, 9vw, 8rem);
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.eyebrow {
  margin-bottom: 1rem;
  color: var(--blue-bright);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-lede {
  max-width: 580px;
  margin-bottom: 2rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.85rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 13px;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.button-primary {
  color: white;
  background: var(--blue);
  box-shadow: 0 13px 28px rgba(36, 79, 127, 0.2);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #173f6b;
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.68);
  border-color: var(--line);
}

.button-disabled {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.55);
  border-color: var(--line);
  cursor: default;
}

.platform-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.3rem;
  margin: 1.7rem 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
  list-style: none;
}

.platform-list li::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 0.55rem;
  margin-bottom: 0.12rem;
  background: var(--slate);
  border-radius: 50%;
}

.hero-visual {
  position: relative;
  min-height: 700px;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(36, 79, 127, 0.14);
  border-radius: 50%;
}

.orbit-one {
  inset: 20px -50px 80px 15px;
  transform: rotate(-9deg);
}

.orbit-two {
  inset: 90px -90px 10px 75px;
  transform: rotate(8deg);
}

.phone {
  position: relative;
  overflow: hidden;
  background: #0e1722;
  border: 10px solid #142334;
  border-radius: 42px;
  box-shadow: var(--shadow), 0 3px 0 rgba(255, 255, 255, 0.8) inset;
}

.phone::before {
  content: "";
  position: absolute;
  z-index: 2;
  top: 14px;
  left: 50%;
  width: 34%;
  height: 22px;
  background: #09111a;
  border-radius: 0 0 16px 16px;
  transform: translateX(-50%);
}

.phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-hero {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 50%;
  width: min(330px, 78%);
  aspect-ratio: 1170 / 2532;
  transform: translateX(-50%) rotate(2.3deg);
}

.floating-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 0.95rem;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 16px;
  box-shadow: 0 18px 40px rgba(34, 62, 91, 0.16);
  backdrop-filter: blur(12px);
}

.floating-card span:last-child {
  display: grid;
}

.floating-card strong {
  font-size: 0.82rem;
}

.floating-card small {
  margin-top: 0.12rem;
  color: var(--muted);
  font-size: 0.68rem;
}

.floating-method {
  top: 25%;
  left: -8%;
}

.floating-translation {
  right: -8%;
  bottom: 18%;
}

.floating-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--blue);
  background: var(--surface-soft);
  border-radius: 11px;
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 700;
}

.translation-marks {
  color: var(--blue);
  font-family: var(--serif);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 0.8;
  letter-spacing: 0.12em;
}

.principles {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: clamp(2rem, 7vw, 6rem);
  padding-block: clamp(5rem, 9vw, 9rem);
  border-top: 1px solid var(--line);
}

.principles h2 {
  max-width: 500px;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.principle-grid article {
  padding: 1.7rem;
  background: rgba(255, 255, 255, 0.68);
}

.principle-grid article > span {
  display: block;
  margin-bottom: 2.8rem;
  color: var(--slate);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.principle-grid p,
.method-card p,
.story-copy p,
.section-heading p,
.translation-layout p,
.groups-section p,
.availability-card p,
.faq p {
  color: var(--muted);
}

.practice-section {
  padding-block: clamp(5rem, 8vw, 8rem);
  background: var(--ink);
  color: #eef4fb;
}

.practice-section .eyebrow {
  color: #a9c8e9;
}

.section-heading {
  max-width: 800px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-heading h2 {
  max-width: 770px;
}

.section-heading > p:last-child {
  max-width: 640px;
  margin-bottom: 0;
  font-size: 1.05rem;
}

.practice-section .section-heading > p:last-child {
  color: #b7c7d8;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.method-card {
  min-height: 280px;
  padding: 1.65rem;
  background: rgba(255, 255, 255, 0.065);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
}

.method-card-featured {
  color: var(--ink);
  background: #edf4fb;
}

.method-card p {
  color: #aebed0;
  font-size: 0.88rem;
}

.method-card-featured p {
  color: var(--muted);
}

.method-icon {
  display: grid;
  place-items: center;
  width: 45px;
  height: 45px;
  margin-bottom: 4.4rem;
  color: #b9d2ea;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 13px;
}

.method-icon svg {
  width: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.method-card-featured .method-icon {
  color: var(--blue);
  background: #d9e8f6;
}

.letters-icon {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
}

.feature-story {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 0.58fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: center;
  padding-block: clamp(5rem, 10vw, 10rem);
}

.story-copy p {
  max-width: 600px;
  font-size: 1.05rem;
}

.check-list {
  display: grid;
  gap: 0.8rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 1.8rem;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--blue);
  font-weight: 800;
}

.step-list {
  display: grid;
  margin: 2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.step-list li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 0.9rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.step-list > li > span {
  padding-top: 0.12rem;
  color: var(--slate);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.step-list strong {
  color: var(--ink);
  font-size: 0.92rem;
}

.step-list p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.83rem;
}

.story-screen {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 620px;
  background: linear-gradient(145deg, #dce7f1, #f5f8fb);
  border-radius: 38px;
}

.phone-medium {
  width: min(286px, 78%);
  aspect-ratio: 1170 / 2532;
  transform: rotate(-2deg);
}

.screens-section {
  padding-block: clamp(5rem, 9vw, 9rem);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.5), transparent),
    var(--bg-deep);
}

.screen-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.4rem, 4vw, 3rem);
  align-items: end;
}

.screen-gallery figure {
  margin: 0;
}

.phone-gallery {
  width: min(100%, 270px);
  margin-inline: auto;
  aspect-ratio: 1170 / 2532;
}

.screen-gallery figure:nth-child(2) .phone-gallery {
  transform: translateY(-30px);
}

.screen-gallery figcaption {
  display: grid;
  gap: 0.3rem;
  margin-top: 1.4rem;
  text-align: center;
}

.screen-gallery figcaption span {
  color: var(--muted);
  font-size: 0.82rem;
}

.screenshot-note {
  margin-top: 2.5rem;
  color: var(--muted);
  font-size: 0.72rem;
  text-align: center;
}

.translation-section {
  padding-block: clamp(5rem, 9vw, 9rem);
  background: #dce5ee;
}

.translation-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.translation-layout p {
  max-width: 620px;
}

.translation-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

.translation-cards span {
  display: grid;
  place-items: center;
  min-height: 92px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(23, 45, 72, 0.1);
  border-radius: 16px;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  text-align: center;
}

.translation-policy {
  margin-top: 3rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(23, 45, 72, 0.12);
  color: var(--muted);
  font-size: 0.78rem;
}

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

.progress-panel {
  padding: clamp(1.5rem, 4vw, 4rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 22px 60px rgba(29, 55, 81, 0.08);
}

.progress-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 2.5rem;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.progress-grid article {
  padding: 1.5rem;
  background: #f9fbfd;
}

.progress-grid strong {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
}

.progress-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.groups-section {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 0.55fr);
  gap: 4rem;
  align-items: center;
  padding-bottom: clamp(5rem, 9vw, 9rem);
}

.groups-section p {
  max-width: 620px;
}

.group-card {
  padding: 1.4rem;
  background: var(--ink);
  color: #eef4fb;
  border-radius: 22px;
  box-shadow: 0 22px 50px rgba(23, 45, 72, 0.18);
}

.group-code {
  display: block;
  margin-bottom: 1.5rem;
  color: #b9d2ea;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.group-lines {
  display: grid;
  gap: 0.8rem;
}

.group-lines span {
  display: block;
  width: var(--w);
  height: 9px;
  background: rgba(255, 255, 255, 0.13);
  border-radius: 999px;
}

.group-card small {
  display: block;
  margin-top: 1.5rem;
  color: #8fa8be;
  font-size: 0.65rem;
}

.availability-section {
  padding-block: clamp(5rem, 9vw, 9rem);
  background: var(--ink);
  color: #eef4fb;
}

.availability-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.availability-card img {
  width: 84px;
  height: 84px;
  border-radius: 22px;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.28);
}

.availability-card h2 {
  margin-bottom: 0.6rem;
  font-size: clamp(2.2rem, 4vw, 3.7rem);
}

.availability-card p {
  max-width: 670px;
  margin-bottom: 0;
  color: #b8c7d7;
}

.availability-card .eyebrow {
  color: #aac9e7;
}

.faq {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: clamp(2rem, 7vw, 7rem);
  padding-block: clamp(5rem, 9vw, 9rem);
}

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

.faq details {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  list-style: none;
}

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

.faq summary::after {
  content: "+";
  float: right;
  color: var(--blue);
  font-family: var(--sans);
}

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

.faq details p {
  max-width: 680px;
  margin: 0.85rem 2rem 0 0;
}

.site-footer {
  padding-block: 2.2rem;
  color: #9cb0c3;
  background: #0d1a2a;
}

.footer-layout {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem 3rem;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
}

.footer-brand span {
  display: grid;
  line-height: 1.1;
}

.footer-brand strong {
  color: #eef4fb;
  font-family: var(--serif);
}

.footer-brand small {
  margin-top: 0.25rem;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  gap: 1.4rem;
}

.footer-links a {
  color: #d2deea;
  font-size: 0.76rem;
  text-decoration: none;
}

.footer-layout > p {
  grid-column: 1 / -1;
  max-width: 900px;
  margin: 0.5rem 0 0;
  font-size: 0.66rem;
  line-height: 1.6;
}

.legal-page {
  min-height: calc(100svh - 160px);
  padding-block: 5rem 7rem;
}

.legal-hero {
  max-width: 760px;
  margin-bottom: 3rem;
}

.legal-hero h1 {
  font-size: clamp(3rem, 6vw, 5.6rem);
}

.legal-card {
  max-width: 820px;
  padding: clamp(1.4rem, 4vw, 3rem);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.legal-card h2 {
  margin-top: 2.5rem;
  font-family: var(--sans);
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.legal-card h2:first-child {
  margin-top: 0;
}

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

.legal-card .notice {
  padding: 1rem 1.1rem;
  background: var(--bg);
  border-radius: 12px;
  font-size: 0.82rem;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}

.support-card {
  padding: 1.4rem;
  background: var(--bg);
  border-radius: 16px;
}

.support-card-wide {
  grid-column: 1 / -1;
}

.support-card h2 {
  margin-top: 0;
}

.support-card p:last-child {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-header nav {
    display: none;
  }

  .beta-chip {
    grid-column: 2;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 3.5rem;
    min-height: auto;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    width: min(560px, 100%);
    min-height: 650px;
    margin-inline: auto;
  }

  .principles,
  .feature-story,
  .translation-layout,
  .groups-section,
  .faq {
    grid-template-columns: 1fr;
  }

  .principle-grid,
  .method-grid,
  .progress-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .method-card {
    min-height: 250px;
  }

  .method-icon {
    margin-bottom: 3rem;
  }

  .story-screen {
    min-height: 580px;
  }

  .screen-gallery {
    grid-template-columns: repeat(3, minmax(220px, 1fr));
    overflow-x: auto;
    padding-bottom: 1.5rem;
    scroll-snap-type: x mandatory;
  }

  .screen-gallery figure {
    scroll-snap-align: center;
  }

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

  .availability-card .button {
    grid-column: 2;
    width: max-content;
  }
}

@media (max-width: 600px) {
  .wrap {
    width: min(calc(100% - 28px), 1160px);
  }

  .site-header {
    min-height: 66px;
    padding-inline: 14px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .brand-copy strong {
    font-size: 1rem;
  }

  .beta-chip {
    font-size: 0.67rem;
  }

  h1 {
    font-size: clamp(2.8rem, 15vw, 4.4rem);
  }

  .hero {
    padding-block: 3.5rem 4.5rem;
  }

  .hero-visual {
    min-height: 570px;
  }

  .floating-method {
    left: 0;
  }

  .floating-translation {
    right: 0;
  }

  .principle-grid,
  .method-grid,
  .progress-grid,
  .translation-cards,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .principle-grid article > span {
    margin-bottom: 1rem;
  }

  .method-card {
    min-height: auto;
  }

  .method-icon {
    margin-bottom: 2rem;
  }

  .story-screen {
    min-height: 520px;
  }

  .screen-gallery {
    width: 100%;
    padding-inline: 14px;
    grid-template-columns: repeat(3, minmax(78vw, 1fr));
  }

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

  .availability-card .button {
    grid-column: auto;
    width: 100%;
  }

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

  .footer-links {
    flex-wrap: wrap;
  }

  .footer-layout > p {
    grid-column: auto;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}