:root {
  color-scheme: light;
  --carbon: #101116;
  --ink: #0b1020;
  --iris: #7c6cff;
  --cyan: #42d9c8;
  --mint: #53d6a1;
  --amber: #ffb44c;
  --paper: #f7f9ff;
  --mist: #eaf0fc;
  --line: rgba(11, 16, 32, 0.12);
  --muted: #566078;
  --white: #ffffff;
  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow: 0 24px 70px rgba(11, 16, 32, 0.12);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Hiragino Sans",
    "Yu Gothic UI", "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 7%, rgba(124, 108, 255, 0.16), transparent 27rem),
    linear-gradient(150deg, #fbfcff 0%, #f0f5ff 52%, #f8fbff 100%);
  font-size: 16px;
  line-height: 1.7;
}

img {
  max-width: 100%;
}

a {
  color: #3f35b5;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #241b90;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
  border-radius: 6px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-150%);
  padding: 10px 16px;
  border-radius: 10px;
  color: var(--ink);
  background: var(--amber);
  font-weight: 750;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(11, 16, 32, 0.08);
  background: rgba(247, 249, 255, 0.88);
  backdrop-filter: blur(18px) saturate(1.3);
}

.nav-row {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  box-shadow: 0 7px 18px rgba(11, 16, 32, 0.18);
}

.site-nav {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  font-size: 0.92rem;
  font-weight: 680;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: #5143d4;
}

.language-link {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.64);
}

main {
  overflow: clip;
}

.hero {
  padding: 86px 0 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(470px, 1.05fr);
  align-items: center;
  gap: 68px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  color: #2f796f;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 3px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--cyan), var(--iris));
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
  line-height: 1.16;
  letter-spacing: -0.035em;
}

.hero-grid > * {
  min-width: 0;
}

h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 5vw, 5rem);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 3.7vw, 3.3rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.28rem;
}

h4 {
  margin-bottom: 9px;
  font-size: 1.08rem;
}

.lede {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.5vw, 1.24rem);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 19px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--white);
  background: var(--ink);
  font-weight: 760;
  text-decoration: none;
  box-shadow: 0 10px 26px rgba(11, 16, 32, 0.18);
}

.button:hover {
  color: var(--white);
  background: #1c2544;
}

.button.secondary {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.75);
  box-shadow: none;
}

.button.secondary:hover {
  color: var(--ink);
  background: var(--white);
}

.compat {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.product-visual {
  position: relative;
  min-height: 470px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 34px;
  background:
    radial-gradient(circle at 75% 20%, rgba(124, 108, 255, 0.58), transparent 44%),
    linear-gradient(145deg, #101116, #111a32);
  box-shadow: 0 34px 90px rgba(11, 16, 32, 0.25);
  overflow: hidden;
  isolation: isolate;
}

.product-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 38px 38px;
}

.mock-window {
  position: absolute;
  width: 72%;
  min-height: 250px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 18px;
  background: rgba(247, 249, 255, 0.91);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.34);
  overflow: hidden;
}

.mock-window.back {
  top: 72px;
  left: 62px;
  transform: rotate(-3deg);
  opacity: 0.56;
}

.mock-window.front {
  right: 44px;
  bottom: 56px;
  transform: rotate(1.5deg);
}

.mock-bar {
  height: 38px;
  border-bottom: 1px solid rgba(11, 16, 32, 0.1);
  background: rgba(255, 255, 255, 0.72);
}

.mock-lines {
  display: grid;
  gap: 14px;
  padding: 28px;
}

.mock-line {
  height: 10px;
  border-radius: 10px;
  background: rgba(11, 16, 32, 0.13);
}

.mock-line.short {
  width: 62%;
}

.mask-block {
  position: absolute;
  right: 13%;
  top: 42%;
  width: 48%;
  height: 64px;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 13px;
  background:
    linear-gradient(135deg, rgba(66, 217, 200, 0.52), rgba(124, 108, 255, 0.58)),
    rgba(255, 255, 255, 0.64);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 28px rgba(54, 46, 174, 0.26);
}

.motion-path {
  position: absolute;
  top: 52px;
  right: 42px;
  color: var(--cyan);
  font-size: 2.2rem;
  font-weight: 500;
  transform: rotate(18deg);
}

.section {
  padding: 90px 0;
}

.section-tint {
  border-block: 1px solid rgba(11, 16, 32, 0.06);
  background: rgba(234, 240, 252, 0.58);
}

main [id] {
  scroll-margin-top: 104px;
}

.section.compact {
  padding: 64px 0;
}

.section.dark {
  color: var(--white);
  background:
    radial-gradient(circle at 80% 20%, rgba(124, 108, 255, 0.26), transparent 32rem),
    var(--carbon);
}

.section.dark .section-intro,
.section.dark .muted {
  color: #bac2d8;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-intro,
.muted {
  color: var(--muted);
}

.feature-grid,
.steps-grid,
.boundary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.screenshot-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(11, 16, 32, 0.12);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 52px rgba(11, 16, 32, 0.11);
}

.screenshot-card.featured {
  grid-column: 1 / -1;
}

.screenshot-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--carbon);
}

.screenshot-card figcaption {
  padding: 18px 20px 20px;
  color: var(--muted);
}

.screenshot-card figcaption strong {
  display: block;
  margin-bottom: 3px;
  color: var(--ink);
  font-size: 1.05rem;
}

.feature-card,
.step-card,
.info-card {
  border: 1px solid rgba(11, 16, 32, 0.1);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 12px 38px rgba(11, 16, 32, 0.07);
}

.feature-card,
.step-card {
  padding: 26px;
}

.feature-card p,
.step-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 22px;
  border-radius: 13px;
  color: var(--ink);
  background: linear-gradient(140deg, rgba(66, 217, 200, 0.58), rgba(124, 108, 255, 0.46));
  font-size: 1.15rem;
  font-weight: 850;
}

.step-number {
  display: inline-flex;
  margin-bottom: 22px;
  color: #5143d4;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.boundary-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.boundary-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.boundary-card {
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.055);
}

.boundary-card strong {
  color: var(--cyan);
}

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

.notice {
  padding: 26px 28px;
  border: 1px solid rgba(255, 180, 76, 0.42);
  border-radius: var(--radius-md);
  background: rgba(255, 180, 76, 0.11);
}

.notice h2,
.notice h3 {
  font-size: 1.16rem;
  letter-spacing: -0.01em;
}

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

.guide-grid,
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.guide-card {
  padding: 28px;
  border: 1px solid rgba(11, 16, 32, 0.1);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 38px rgba(11, 16, 32, 0.07);
}

.guide-card ol,
.guide-card ul {
  margin-bottom: 0;
  padding-left: 1.3rem;
}

.guide-card li + li {
  margin-top: 8px;
}

.info-card {
  padding: 26px;
}

.info-card p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.content-block {
  margin-top: 58px;
}

.content-block > h3 {
  margin-bottom: 18px;
  font-size: 1.65rem;
}

.page-hero {
  padding: 78px 0 42px;
}

.page-hero h1 {
  margin-bottom: 18px;
  font-size: clamp(2.7rem, 5vw, 4.5rem);
}

.article-wrap {
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  gap: 58px;
  align-items: start;
  padding: 20px 0 96px;
}

.article-nav {
  position: sticky;
  top: 106px;
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
}

.article-nav a {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.prose {
  min-width: 0;
}

.prose-wide {
  width: min(100%, 900px);
}

.prose section {
  padding-top: 26px;
  scroll-margin-top: 92px;
}

.prose h2 {
  margin-bottom: 14px;
  font-size: 1.65rem;
}

.prose h3 {
  margin-top: 28px;
}

.prose h4 {
  margin-top: 24px;
}

.prose ul,
.prose ol {
  padding-left: 1.3rem;
}

.prose li + li {
  margin-top: 8px;
}

.meta-line {
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-card {
  padding: 34px;
  border-radius: 24px;
  color: var(--white);
  background: linear-gradient(145deg, #101116, #17213f);
  box-shadow: var(--shadow);
}

.contact-card a {
  color: var(--cyan);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.78);
}

.faq-list summary {
  cursor: pointer;
  padding: 19px 22px;
  font-weight: 750;
}

.faq-answer {
  padding: 0 22px 20px;
  color: var(--muted);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.download-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.download-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 17px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.74);
  font-weight: 720;
  text-decoration: none;
}

.download-link::after {
  content: "↓";
  color: #5143d4;
}

.cta-band {
  padding: 42px;
  border-radius: var(--radius-lg);
  color: var(--white);
  background: linear-gradient(130deg, var(--ink), #262060 80%);
  box-shadow: var(--shadow);
}

.cta-band h2 {
  margin-bottom: 10px;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.cta-band p {
  max-width: 700px;
  margin-bottom: 0;
  color: #ced4e7;
}

.site-footer {
  padding: 42px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: rgba(247, 249, 255, 0.72);
  font-size: 0.9rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: flex-start;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-note {
  max-width: 620px;
  margin: 7px 0 0;
  font-size: 0.82rem;
}

@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .product-visual {
    min-height: 430px;
  }

  .feature-grid,
  .steps-grid,
  .guide-grid,
  .info-grid {
    grid-template-columns: 1fr 1fr;
  }

  .boundary-grid-three {
    grid-template-columns: 1fr;
  }

  .article-wrap {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .article-nav {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  body {
    font-size: 15px;
  }

  .container {
    width: min(100% - 28px, 1160px);
  }

  .nav-row {
    min-height: auto;
    padding: 12px 0;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 10px;
  }

  .brand span {
    display: none;
  }

  .site-nav {
    flex: 1 1 100%;
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 8px 14px;
    font-size: 0.82rem;
  }

  .hero {
    padding: 60px 0 54px;
  }

  .hero-grid {
    gap: 42px;
  }

  h1 {
    font-size: clamp(2.65rem, 13vw, 4rem);
  }

  .product-visual {
    min-height: 330px;
    border-radius: 24px;
  }

  .mock-window {
    width: 80%;
    min-height: 188px;
  }

  .mock-window.back {
    top: 46px;
    left: 26px;
  }

  .mock-window.front {
    right: 20px;
    bottom: 34px;
  }

  .mock-lines {
    padding: 20px;
  }

  .mask-block {
    height: 50px;
  }

  .section {
    padding: 66px 0;
  }

  .feature-grid,
  .steps-grid,
  .boundary-grid,
  .screenshot-grid,
  .download-list,
  .guide-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

  main [id] {
    scroll-margin-top: 156px;
  }

  .article-nav {
    grid-template-columns: 1fr 1fr;
  }

  .page-hero {
    padding-top: 54px;
  }

  .cta-band {
    padding: 28px;
  }

  .footer-grid {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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