:root {
  --bg: #050807;
  --bg-soft: #08110d;
  --panel: rgba(13, 28, 20, 0.78);
  --panel-solid: #101b15;
  --text: #f4fff8;
  --muted: #a9b8ae;
  --line: rgba(151, 255, 177, 0.17);
  --green: #00e56f;
  --green-soft: #8dff72;
  --amber: #ffad42;
  --cyan: #24d7ff;
  --shadow: 0 28px 90px rgba(0, 229, 111, 0.18);
  --radius: 8px;
  --max: 1180px;
  --font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at 78% 8%, rgba(0, 229, 111, 0.18), transparent 28rem),
    radial-gradient(circle at 12% 34%, rgba(36, 215, 255, 0.1), transparent 22rem),
    var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(5, 8, 7, 0.76);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.nav {
  width: min(100% - 40px, var(--max));
  height: 72px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.12rem;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 7px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.92rem;
  color: var(--muted);
}

.nav-links a {
  text-decoration: none;
}

.nav-cta {
  color: #00190b;
  background: var(--green);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-weight: 800;
}

.hero {
  position: relative;
  min-height: 760px;
  padding: 136px 0 70px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.42;
  pointer-events: none;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #050807 0%, rgba(5, 8, 7, 0.78) 42%, rgba(5, 8, 7, 0.2) 100%);
}

.hero-bg img {
  position: absolute;
  top: 50%;
  right: 0;
  width: min(76vw, 1500px);
  height: auto;
  transform: translateY(-50%);
  object-fit: contain;
  object-position: center right;
}

.hero-grid {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  font-weight: 800;
}

.hero h1,
.section h2,
.cta h2 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(2.55rem, 5.6vw, 5.35rem);
  font-weight: 950;
}

.lead {
  max-width: 650px;
  margin: 28px 0 0;
  color: #d7e8dc;
  font-size: clamp(1rem, 1.8vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 34px;
}

.store-link {
  display: inline-flex;
  width: fit-content;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.store-link:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.store-link img {
  height: 58px;
  width: auto;
}

.text-link {
  color: var(--green-soft);
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid rgba(141, 255, 114, 0.48);
}

.hero-metrics {
  margin-top: 38px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 620px;
}

.hero-metrics div,
.step-card,
.showcase-item,
.check-list,
.cta-inner {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(16px);
  border-radius: var(--radius);
}

.hero-metrics div {
  padding: 16px;
}

.hero-metrics strong {
  display: block;
  font-size: 1.4rem;
  color: var(--green);
  line-height: 1.1;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-phone {
  justify-self: center;
  width: min(370px, 100%);
  filter: drop-shadow(0 32px 70px rgba(0, 229, 111, 0.23));
}

.hero-phone img {
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.13);
}

.section {
  padding: 96px 0;
}

.section-heading {
  max-width: 820px;
  margin: 0 auto 42px;
  text-align: center;
}

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

.section h2,
.cta h2 {
  font-size: clamp(2rem, 4.2vw, 4.1rem);
  font-weight: 920;
}

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

.step-card {
  padding: 28px;
}

.step-card span {
  color: var(--green);
  font-weight: 900;
  font-size: 0.86rem;
}

.step-card h3,
.showcase-item h3 {
  margin: 12px 0 10px;
  font-size: 1.3rem;
  line-height: 1.25;
}

.step-card p,
.showcase-item p,
.split p,
.cta p {
  margin: 0;
  color: var(--muted);
}

.dark-band {
  background: linear-gradient(180deg, rgba(0, 229, 111, 0.08), rgba(0, 0, 0, 0.18));
  border-block: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.72fr);
  align-items: center;
  gap: 54px;
}

.split img {
  width: 100%;
  max-height: 720px;
  object-fit: contain;
  object-position: center;
  background: #030504;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}

.split h2 {
  margin-bottom: 22px;
}

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

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

.feature-card {
  min-height: 240px;
  padding: 26px;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(0, 229, 111, 0.1), rgba(36, 215, 255, 0.04)),
    var(--panel-solid);
  border-radius: var(--radius);
}

.feature-mark {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 9px;
  color: #06130b;
  background: var(--green);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 950;
  line-height: 1;
}

.feature-card h3 {
  margin: 24px 0 12px;
  font-size: 1.35rem;
  line-height: 1.25;
}

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

.showcase-item {
  overflow: hidden;
  background: var(--panel-solid);
}

.showcase-item img {
  width: 100%;
  aspect-ratio: 1242 / 2688;
  object-fit: contain;
  object-position: center top;
  background: #030504;
  border-bottom: 1px solid var(--line);
}

.showcase-item div {
  padding: 22px;
}

.showcase-item p {
  font-size: 0.95rem;
}

.benefits {
  background:
    linear-gradient(90deg, rgba(0, 229, 111, 0.08), transparent),
    var(--bg-soft);
}

.screenshots {
  overflow: hidden;
  background: #030504;
}

.screen-strip {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding: 4px 0 18px;
  scrollbar-color: rgba(141, 255, 114, 0.55) rgba(255, 255, 255, 0.08);
}

.screen-shot {
  flex: 0 0 clamp(210px, 21vw, 285px);
  margin: 0;
  scroll-snap-align: start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #050807;
  box-shadow: 0 18px 56px rgba(0, 229, 111, 0.12);
  overflow: hidden;
}

.screen-shot img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.benefit-layout {
  display: grid;
  grid-template-columns: 0.7fr 1fr;
  gap: 48px;
  align-items: start;
}

.check-list,
.compact-list {
  margin: 0;
  padding: 24px;
  list-style: none;
}

.check-list li,
.compact-list li {
  position: relative;
  padding-left: 30px;
  color: #d8e7dd;
}

.check-list li + li,
.compact-list li + li {
  margin-top: 14px;
}

.check-list li::before,
.compact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.56em;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 18px rgba(0, 229, 111, 0.8);
}

.english {
  background: #030504;
}

.cta {
  padding: 96px 0;
}

.cta-inner {
  text-align: center;
  padding: 56px 24px;
  background:
    linear-gradient(135deg, rgba(0, 229, 111, 0.18), rgba(36, 215, 255, 0.08)),
    var(--panel-solid);
}

.cta-inner p:not(.eyebrow) {
  margin-top: 18px;
}

.cta .store-link {
  margin-top: 30px;
}

.footer {
  padding: 30px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #030504;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  font-size: 0.92rem;
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--green-soft);
  text-decoration: none;
}

@media (max-width: 980px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .split,
  .benefit-layout {
    grid-template-columns: 1fr;
  }

  .hero-phone {
    width: min(330px, 82vw);
  }

  .step-grid,
  .showcase-grid,
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .container,
  .nav {
    width: min(100% - 28px, var(--max));
  }

  .nav {
    height: 64px;
  }

  .brand span {
    font-size: 1rem;
  }

  .hero {
    padding-top: 104px;
  }

  .hero-bg {
    opacity: 0.28;
  }

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

  .hero h1 {
    font-size: clamp(2.25rem, 11.5vw, 3.5rem);
  }

  .hero-metrics,
  .step-grid,
  .showcase-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 72px 0;
  }

  .store-link img {
    height: 50px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}