:root {
  color-scheme: light;
  --bg: #fbfbf6;
  --surface: #ffffff;
  --surface-soft: #f2f7ec;
  --ink: #1d2a2d;
  --muted: #667276;
  --line: rgba(29, 42, 45, 0.12);
  --brand: #114232;
  --brand-2: #7e9b3a;
  --accent: #f1c96b;
  --warm: #f7d4bf;
  --shadow: 0 28px 80px rgba(17, 66, 50, 0.18);
  --header-height: 72px;
  --font-sans: "IBM Plex Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Yu Gothic UI", "Meiryo", sans-serif;
  --font-code: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-family: var(--font-sans);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: inherit;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background:
    radial-gradient(circle at 12% 8%, rgba(126, 155, 58, 0.18), transparent 28rem),
    radial-gradient(circle at 90% 18%, rgba(247, 212, 191, 0.48), transparent 24rem),
    linear-gradient(180deg, #fffdf7 0%, #fbfbf6 48%, #f5faf0 100%);
}

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

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 253, 247, 0.86);
  border-bottom: 1px solid rgba(17, 66, 50, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  border-radius: 10px;
  box-shadow: 0 8px 22px rgba(17, 66, 50, 0.18);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 28px);
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 700;
  letter-spacing: 0;
}

.header-nav a {
  color: var(--muted);
}

.header-cta,
.floating-cta button,
.primary-button {
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: var(--brand);
  box-shadow: 0 16px 34px rgba(17, 66, 50, 0.24);
  cursor: pointer;
  font-weight: 800;
}

.header-cta {
  min-height: 42px;
  padding: 0 18px;
  font-size: 0.92rem;
}

.primary-button {
  min-height: 56px;
  padding: 0 26px;
  font-size: 1rem;
}

.header-cta:hover,
.floating-cta button:hover,
.primary-button:hover {
  background: #0c3528;
  transform: translateY(-1px);
}

.hero {
  position: relative;
  min-height: calc(100svh - var(--header-height));
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(17, 66, 50, 0.96) 0%, rgba(17, 66, 50, 0.88) 45%, rgba(255, 253, 247, 0.12) 100%),
    radial-gradient(circle at 80% 18%, rgba(241, 201, 107, 0.28), transparent 24rem);
  color: #fff;
}

.hero::after {
  position: absolute;
  right: -10vw;
  bottom: -18vw;
  width: 42vw;
  height: 42vw;
  min-width: 320px;
  min-height: 320px;
  content: "";
  background: var(--warm);
  border-radius: 999px;
  opacity: 0.92;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(480px, 0.98fr) minmax(420px, 0.92fr);
  align-items: center;
  width: min(1320px, calc(100% - 48px));
  min-height: calc(100svh - var(--header-height));
  margin: 0 auto;
  padding: clamp(46px, 8vw, 86px) 0;
  gap: clamp(34px, 5vw, 76px);
}

.hero-copy {
  position: relative;
  z-index: 3;
  max-width: 680px;
  animation: rise-in 700ms ease both;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-2);
  font-family: var(--font-code);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #e8f5be;
}

.hero h1,
.hero-lead,
.section h2,
.final-cta h2,
.legal-page h1 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero h1 {
  font-family: var(--font-code);
  font-size: clamp(4.2rem, 7.4vw, 6.9rem);
  max-width: 9.1ch;
  overflow-wrap: normal;
}

.hero-lead {
  margin-top: 16px;
  max-width: 12.8em;
  font-size: clamp(1.8rem, 3.9vw, 3.25rem);
  font-weight: 900;
}

.hero-text {
  max-width: 36rem;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.83);
  font-size: clamp(1rem, 1.6vw, 1.14rem);
}

.hero-actions {
  position: relative;
  z-index: 4;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 32px;
}

.secondary-link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  color: #fff;
  font-weight: 800;
}

.hero-notes {
  position: relative;
  z-index: 4;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 26px 0 0;
  list-style: none;
}

.hero-notes li {
  padding: 7px 12px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-family: var(--font-code);
  font-size: 0.85rem;
  font-weight: 700;
}

.hero-visual {
  position: relative;
  z-index: 1;
  min-height: min(700px, 72svh);
  animation: float-in 850ms ease 100ms both;
  pointer-events: none;
}

.phone-frame {
  position: absolute;
  overflow: hidden;
  background: #0b1112;
  border: 10px solid #0b1112;
  border-radius: 40px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.34);
}

.phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 28px;
}

.phone-main {
  right: 14%;
  bottom: -3%;
  width: min(54%, 320px);
  aspect-ratio: 1284 / 2778;
  transform: rotate(-4deg);
}

.phone-side {
  top: 6%;
  left: 5%;
  width: min(45%, 260px);
  aspect-ratio: 1284 / 2778;
  transform: rotate(6deg);
  opacity: 0.96;
}

.app-badge {
  position: absolute;
  right: 3%;
  bottom: 13%;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  max-width: min(330px, 72vw);
  padding: 14px 18px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.app-badge img {
  width: 62px;
  height: 62px;
  border-radius: 17px;
}

.app-badge span {
  display: grid;
  line-height: 1.2;
}

.app-badge strong {
  font-size: clamp(1.15rem, 2vw, 1.55rem);
}

.app-badge small {
  color: var(--muted);
  font-weight: 800;
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(76px, 10vw, 126px) 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(32px, 5vw, 54px);
}

.section-heading.compact {
  max-width: 680px;
}

.section h2,
.final-cta h2 {
  color: var(--ink);
  font-size: clamp(2rem, 5vw, 4.2rem);
  font-weight: 900;
}

.section h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.45;
}

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

.pain-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--line);
  box-shadow: 0 20px 70px rgba(17, 66, 50, 0.08);
}

.pain-list p {
  min-height: 180px;
  margin: 0;
  padding: 26px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 800;
}

.feature-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(320px, 0.9fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
}

.feature-media {
  overflow: hidden;
  background: #e9f1df;
  border-radius: 34px;
  box-shadow: var(--shadow);
}

.feature-media img {
  width: 100%;
  max-height: 680px;
  object-fit: cover;
  object-position: top center;
}

.feature-points {
  display: grid;
  gap: 26px;
}

.feature-points article {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  column-gap: 18px;
  align-items: start;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.feature-points article span {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--brand);
  background: #e7f0d4;
  border-radius: 14px;
  font-family: var(--font-code);
  font-weight: 900;
}

.feature-points article p {
  grid-column: 2;
  margin: 6px 0 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 26px);
}

.steps article {
  position: relative;
  min-height: 220px;
  padding: 28px 0 0;
  border-top: 2px solid rgba(17, 66, 50, 0.22);
}

.steps span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  color: #fff;
  background: var(--brand);
  border-radius: 999px;
  font-family: var(--font-code);
  font-weight: 900;
}

.steps p {
  margin: 10px 0 0;
}

.device-section {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 0.9fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  padding: clamp(50px, 7vw, 78px);
  background: #fff;
  border: 1px solid rgba(17, 66, 50, 0.08);
  border-radius: 34px;
  box-shadow: 0 22px 70px rgba(17, 66, 50, 0.08);
}

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

.device-table {
  display: grid;
  gap: 10px;
}

.device-table div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.device-table div:last-child {
  border-bottom: 0;
}

.device-table span {
  color: var(--muted);
  font-weight: 800;
}

.device-table strong {
  color: var(--brand);
}

.showcase-section {
  display: grid;
  grid-template-columns: minmax(0, 0.52fr) minmax(0, 1fr);
  gap: clamp(30px, 6vw, 72px);
  align-items: start;
}

.showcase-copy {
  position: sticky;
  top: calc(var(--header-height) + 32px);
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 30px);
}

.showcase-grid figure {
  margin: 0;
}

.showcase-grid img {
  width: 100%;
  aspect-ratio: 1284 / 2778;
  object-fit: cover;
  object-position: top center;
  border: 8px solid #0f1516;
  border-radius: 34px;
  box-shadow: 0 24px 70px rgba(17, 66, 50, 0.18);
}

.showcase-grid figcaption {
  margin-top: 14px;
  color: var(--muted);
  font-weight: 800;
  text-align: center;
}

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

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 70px;
  padding: 0 42px 0 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  cursor: pointer;
  font-weight: 900;
  text-align: left;
}

.faq-item button::after {
  position: absolute;
  right: 4px;
  width: 28px;
  height: 28px;
  content: "+";
  color: var(--brand);
  border: 1px solid rgba(17, 66, 50, 0.18);
  border-radius: 999px;
  text-align: center;
  line-height: 26px;
}

.faq-item button[aria-expanded="true"]::after {
  content: "-";
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 180ms ease;
}

.faq-answer p {
  min-height: 0;
  margin: 0;
  overflow: hidden;
}

.faq-item.is-open .faq-answer {
  grid-template-rows: 1fr;
  padding-bottom: 22px;
}

.legal-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.38fr) minmax(0, 1fr);
  gap: clamp(24px, 6vw, 80px);
  padding-top: 70px;
  padding-bottom: 70px;
  border-top: 1px solid var(--line);
}

.legal-copy p {
  margin-top: 0;
}

.final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto clamp(90px, 12vw, 140px);
  padding: clamp(34px, 6vw, 64px);
  background:
    linear-gradient(135deg, rgba(17, 66, 50, 0.94), rgba(28, 96, 72, 0.92)),
    radial-gradient(circle at 92% 12%, rgba(241, 201, 107, 0.35), transparent 24rem);
  border-radius: 38px;
  color: #fff;
  box-shadow: var(--shadow);
}

.final-cta h2 {
  color: #fff;
}

.final-cta p {
  color: rgba(255, 255, 255, 0.78);
}

.final-cta .primary-button {
  background: #fff;
  color: var(--brand);
  box-shadow: none;
}

.floating-cta {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: 18px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 10px 10px 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(17, 66, 50, 0.12);
  border-radius: 999px;
  box-shadow: 0 18px 50px rgba(17, 66, 50, 0.2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px);
  transition: opacity 180ms ease, transform 180ms ease;
  backdrop-filter: blur(16px);
}

.floating-cta.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.floating-cta span {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 900;
}

.floating-cta button {
  min-height: 40px;
  padding: 0 16px;
}

.legal-page {
  min-height: 100svh;
  padding-bottom: 80px;
}

.legal-hero {
  width: min(900px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(62px, 10vw, 112px) 0 42px;
}

.legal-hero h1 {
  font-size: clamp(2.4rem, 8vw, 5rem);
}

.legal-hero p {
  color: var(--muted);
  font-size: 1.05rem;
}

.legal-body {
  width: min(900px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(28px, 5vw, 50px);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(17, 66, 50, 0.1);
  border-radius: 30px;
  box-shadow: 0 20px 70px rgba(17, 66, 50, 0.08);
}

.legal-body h2 {
  margin: 36px 0 10px;
  font-size: 1.28rem;
}

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

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

.legal-body a {
  font-weight: 800;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float-in {
  from {
    opacity: 0;
    transform: translateY(26px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}

@media (max-width: 940px) {
  .header-nav {
    display: none;
  }

  .hero-inner,
  .feature-layout,
  .device-section,
  .showcase-section,
  .legal-section {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: min(720px, calc(100% - 40px));
    min-height: auto;
    padding-top: clamp(54px, 9vw, 76px);
    padding-bottom: clamp(46px, 9vw, 82px);
  }

  .hero-visual {
    width: 100%;
    min-height: 560px;
    margin-top: 12px;
    overflow: hidden;
    border-radius: 36px;
  }

  .phone-main {
    top: 5%;
    right: 7%;
    bottom: auto;
    width: min(56%, 320px);
  }

  .phone-side {
    top: 16%;
    left: 4%;
    width: min(44%, 260px);
  }

  .app-badge {
    right: 3%;
    bottom: 10%;
  }

  .pain-list,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .showcase-copy {
    position: static;
  }
}

@media (max-width: 620px) {
  :root {
    --header-height: 64px;
  }

  .site-header {
    padding: 12px 16px;
  }

  .brand span {
    font-size: 0.96rem;
  }

  .brand img {
    width: 30px;
    height: 30px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 13px;
    font-size: 0.82rem;
  }

  .hero-inner,
  .section,
  .final-cta,
  .legal-hero,
  .legal-body {
    width: min(100% - 28px, 1120px);
  }

  .hero {
    min-height: auto;
  }

  .hero h1 {
    font-size: clamp(3.05rem, 15.2vw, 4.15rem);
    max-width: none;
  }

  .hero-lead {
    max-width: 10.5em;
    font-size: clamp(1.48rem, 7.2vw, 2.18rem);
  }

  .hero-text {
    margin-top: 18px;
    font-size: 1rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    margin-top: 24px;
  }

  .primary-button,
  .secondary-link {
    justify-content: center;
    width: 100%;
  }

  .hero-notes {
    gap: 8px;
    margin-top: 18px;
  }

  .hero-visual {
    min-height: clamp(430px, 112vw, 540px);
    margin-top: 28px;
    overflow: hidden;
    border-radius: 32px;
  }

  .phone-main {
    top: 3%;
    right: 4%;
    bottom: auto;
    width: min(68%, 330px);
  }

  .phone-side {
    top: 34%;
    left: -8%;
    width: min(54%, 260px);
  }

  .app-badge {
    right: 8px;
    bottom: 14px;
    padding: 11px 13px;
    border-radius: 20px;
  }

  .app-badge img {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .pain-list,
  .steps,
  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .pain-list p {
    min-height: 128px;
    padding: 22px;
  }

  .section {
    padding: 72px 0;
  }

  .section h2,
  .final-cta h2 {
    font-size: clamp(1.84rem, 9vw, 3rem);
  }

  .feature-points article {
    grid-template-columns: 42px minmax(0, 1fr);
    column-gap: 14px;
  }

  .feature-points article span {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .device-section {
    padding: 30px 22px;
    border-radius: 26px;
  }

  .device-table div {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .showcase-grid {
    width: min(330px, 100%);
    margin: 0 auto;
  }

  .final-cta {
    align-items: stretch;
    flex-direction: column;
    margin-bottom: 106px;
    border-radius: 28px;
  }

  .floating-cta {
    right: 12px;
    left: 12px;
    bottom: 12px;
    justify-content: space-between;
    max-width: none;
  }
}