:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-soft: #fff7f6;
  --bg-blue: #f3f8ff;
  --text: #263238;
  --muted: #66757f;
  --line: #f0dedc;
  --accent: #f45b60;
  --accent-dark: #d9363e;
  --app-green: #0d4a36;
  --app-green-dark: #063221;
  --blue: #6aa9df;
  --yellow: #ffd979;
  --peach: #ffb59f;
  --shadow: 0 22px 60px rgba(74, 38, 34, 0.13);
  --radius: 8px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 12%, rgba(255, 217, 121, 0.22), transparent 28rem),
    radial-gradient(circle at 96% 3%, rgba(244, 91, 96, 0.13), transparent 24rem),
    var(--bg);
  color: var(--text);
  font-family:
    system-ui, -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  line-height: 1.75;
}

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

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(100% - 32px, var(--max));
  min-height: 68px;
  margin: 0 auto;
  padding: 10px 0;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand-icon {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(217, 54, 62, 0.2);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.header-nav a,
.header-cta {
  text-decoration: none;
}

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

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: var(--radius);
  background: var(--accent-dark);
  color: #fff;
  font-size: 0.92rem;
  font-weight: 800;
}

main {
  overflow: hidden;
}

.section-pad {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: 76px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  align-items: center;
  gap: 42px;
  min-height: calc(100svh - 68px);
  padding-top: 38px;
}

.hero-copy {
  max-width: 580px;
}

.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  margin-bottom: 18px;
  padding: 6px 12px 6px 7px;
  border: 1px solid rgba(244, 91, 96, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--accent-dark);
  font-size: 0.92rem;
  font-weight: 850;
  box-shadow: 0 12px 34px rgba(74, 38, 34, 0.08);
}

.app-badge img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

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

h1,
h2,
h3 {
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.45rem, 5.6vw, 4.85rem);
  font-weight: 900;
}

h2 {
  font-size: clamp(1.85rem, 3.4vw, 3rem);
  font-weight: 900;
}

h3 {
  font-size: 1.08rem;
  font-weight: 850;
}

.hero-lead,
.section-heading p,
.feature-copy > p,
.devices p,
.final-cta p,
.site-footer p {
  color: var(--muted);
}

.hero-lead {
  max-width: 34rem;
  margin-top: 22px;
  font-size: clamp(1rem, 2.1vw, 1.2rem);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-size: 1rem;
  font-weight: 850;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.button-primary {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #fff;
  box-shadow: 0 16px 34px rgba(217, 54, 62, 0.24);
}

.button-primary:hover,
.button-primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 20px 40px rgba(217, 54, 62, 0.3);
}

.button-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  cursor: not-allowed;
}

.device-note {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.device-note span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(244, 91, 96, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 247, 246, 0.9);
  color: var(--accent-dark);
  font-size: 0.88rem;
  font-weight: 800;
}

.hero-visual {
  position: relative;
}

.hero-visual::before {
  position: absolute;
  inset: 9% 3% 10% 8%;
  z-index: -1;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(244, 91, 96, 0.24), rgba(13, 74, 54, 0.16));
  content: "";
  filter: blur(6px);
}

.hero-device-showcase {
  display: grid;
  justify-items: center;
  min-height: 520px;
}

.hero-screen {
  width: min(100%, 440px);
  max-height: min(72svh, 690px);
  object-fit: contain;
  filter: drop-shadow(0 34px 48px rgba(6, 50, 33, 0.22));
}

.hero-app-card {
  position: absolute;
  right: clamp(4px, 3vw, 34px);
  bottom: clamp(28px, 7vw, 84px);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 204px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 22px 44px rgba(6, 50, 33, 0.18);
  backdrop-filter: blur(18px);
}

.hero-app-card img {
  width: 54px;
  height: 54px;
  border-radius: 13px;
  box-shadow: 0 10px 20px rgba(217, 54, 62, 0.18);
}

.hero-app-card strong,
.hero-app-card span {
  display: block;
  line-height: 1.35;
}

.hero-app-card strong {
  font-size: 1rem;
  font-weight: 900;
}

.hero-app-card span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 750;
}

.feature-media img {
  width: 100%;
  border-radius: 8px;
  filter: drop-shadow(0 28px 42px rgba(74, 38, 34, 0.14));
}

.pain {
  padding-top: 46px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(280px, 0.68fr);
  align-items: end;
  gap: 28px;
  margin-bottom: 34px;
}

.section-heading p,
.feature-copy > p,
.devices p,
.final-cta p {
  font-size: 1.02rem;
}

.pain-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.pain-list article,
.step-list li,
.device-grid article,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
}

.pain-list article {
  min-height: 206px;
  padding: 22px;
}

.pain-list h3,
.step-list h3 {
  margin-top: 16px;
}

.pain-list p,
.step-list p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.icon-dot {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 32%, #fff 0 19%, transparent 20%),
    var(--accent);
}

.icon-dot.blue {
  background:
    radial-gradient(circle at 35% 32%, #fff 0 19%, transparent 20%),
    var(--blue);
}

.icon-dot.yellow {
  background:
    radial-gradient(circle at 35% 32%, #fff 0 19%, transparent 20%),
    var(--yellow);
}

.icon-dot.peach {
  background:
    radial-gradient(circle at 35% 32%, #fff 0 19%, transparent 20%),
    var(--peach);
}

.features {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 0.82fr);
  align-items: center;
  gap: 54px;
  width: 100%;
  max-width: none;
  margin-top: 28px;
  padding-inline: max(16px, calc((100vw - var(--max)) / 2));
  background: linear-gradient(180deg, var(--bg-soft), #fff);
}

.feature-copy {
  max-width: 520px;
}

.feature-copy > p {
  margin-top: 18px;
}

.feature-list {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 28px;
  font-weight: 780;
}

.feature-list li::before {
  position: absolute;
  top: 0.55em;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
  box-shadow: inset 0 0 0 4px #ffe1e2;
}

.steps {
  background:
    linear-gradient(135deg, rgba(244, 91, 96, 0.1), transparent 36%),
    linear-gradient(315deg, rgba(255, 217, 121, 0.2), transparent 38%);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.step-list li {
  padding: 22px;
}

.step-number {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: var(--app-green);
  color: #fff;
  font-weight: 900;
}

.devices {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 1fr);
  align-items: center;
  gap: 34px;
}

.devices p {
  margin-top: 16px;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.device-grid article {
  display: grid;
  gap: 8px;
  min-height: 126px;
  padding: 20px;
  background: #fff;
}

.device-grid span {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 800;
}

.device-grid strong {
  align-self: end;
  color: var(--accent-dark);
  font-size: 1.18rem;
  line-height: 1.3;
}

.device-grid .soon strong {
  color: #c77948;
}

.faq {
  width: 100%;
  max-width: none;
  padding-inline: max(16px, calc((100vw - 860px) / 2));
  background: linear-gradient(180deg, #fff7f6, var(--bg-blue));
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  min-height: 68px;
  padding: 0 20px;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  font-weight: 850;
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #ffe1e2;
}

.faq-icon::before,
.faq-icon::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  border-radius: 999px;
  background: var(--accent-dark);
  content: "";
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-question[aria-expanded="true"] .faq-icon::after {
  opacity: 0;
}

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

.final-cta {
  width: min(100% - 32px, 940px);
  margin-top: 76px;
  padding: 52px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.72)),
    radial-gradient(circle at 86% 18%, rgba(255, 217, 121, 0.42), transparent 18rem),
    radial-gradient(circle at 15% 100%, rgba(244, 91, 96, 0.23), transparent 20rem);
  box-shadow: var(--shadow);
  text-align: center;
}

.final-cta .hero-actions {
  justify-content: center;
}

.site-footer {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: 32px 0 56px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 14px;
}

.footer-links a {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--accent-dark);
}

.legal-main {
  overflow: hidden;
}

.legal-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.45fr);
  align-items: center;
  gap: 34px;
  padding-top: 52px;
}

.legal-hero h1 {
  max-width: 720px;
}

.legal-lead {
  max-width: 42rem;
  margin-top: 20px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.16rem);
}

.legal-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(255, 247, 246, 0.78)),
    radial-gradient(circle at 90% 0%, rgba(244, 91, 96, 0.18), transparent 12rem);
  box-shadow: var(--shadow);
  padding: 24px;
}

.legal-card img {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  box-shadow: 0 16px 34px rgba(217, 54, 62, 0.18);
}

.legal-card strong,
.legal-card span {
  display: block;
}

.legal-card strong {
  margin-top: 16px;
  font-size: 1.18rem;
  line-height: 1.35;
}

.legal-card span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.legal-content {
  display: grid;
  gap: 18px;
  width: min(100% - 32px, 860px);
  margin: 0 auto;
  padding: 24px 0 76px;
}

.inline-legal {
  padding-top: 24px;
}

.legal-section {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  padding: 24px;
}

.legal-section h2 {
  font-size: clamp(1.32rem, 2.8vw, 1.8rem);
}

.legal-section h3 {
  margin-top: 24px;
}

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

.legal-section p {
  margin-top: 12px;
}

.legal-section ul,
.legal-section ol {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding-left: 1.25rem;
}

.contact-box {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  padding: 18px;
  border-radius: var(--radius);
  background: #fff7f6;
}

.contact-box a {
  color: var(--accent-dark);
  font-size: 1.08rem;
  font-weight: 900;
  text-decoration: none;
}

.legal-date {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
}

.floating-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: min(440px, calc(100vw - 28px));
  padding: 12px;
  border: 1px solid rgba(240, 222, 220, 0.88);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 20px 48px rgba(74, 38, 34, 0.16);
  backdrop-filter: blur(18px);
}

.floating-cta[hidden] {
  display: none;
}

.floating-cta span {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 850;
  line-height: 1.35;
}

.floating-cta .button {
  min-height: 44px;
  padding-inline: 16px;
  font-size: 0.92rem;
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

@media (max-width: 920px) {
  .header-nav {
    display: none;
  }

  .hero,
  .features,
  .devices,
  .legal-hero {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 28px;
    min-height: auto;
  }

  .hero-copy,
  .feature-copy,
  .legal-hero h1 {
    max-width: none;
  }

  .section-heading {
    grid-template-columns: 1fr;
    align-items: start;
  }

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

@media (max-width: 640px) {
  .site-header {
    width: min(100% - 24px, var(--max));
    min-height: 62px;
  }

  .brand {
    font-size: 0.98rem;
  }

  .brand-icon {
    width: 31px;
    height: 31px;
  }

  .header-cta {
    min-height: 38px;
    padding-inline: 13px;
    font-size: 0.86rem;
  }

  .section-pad {
    width: min(100% - 24px, var(--max));
    padding: 52px 0;
  }

  .hero {
    padding-top: 26px;
  }

  .hero-device-showcase {
    min-height: 430px;
  }

  .hero-screen {
    width: min(100%, 330px);
    max-height: 520px;
  }

  .hero-app-card {
    right: 0;
    bottom: 18px;
    min-width: min(204px, calc(100vw - 36px));
  }

  h1 {
    font-size: clamp(2.35rem, 13vw, 3.45rem);
  }

  h2 {
    font-size: clamp(1.68rem, 8.3vw, 2.18rem);
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions,
  .device-note {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
    min-height: 54px;
    white-space: normal;
  }

  .pain-list,
  .step-list,
  .device-grid {
    grid-template-columns: 1fr;
  }

  .pain-list article,
  .step-list li,
  .device-grid article {
    min-height: auto;
    padding: 20px;
  }

  .features,
  .faq {
    padding-inline: 12px;
  }

  .feature-media {
    order: 2;
  }

  .feature-copy {
    order: 1;
  }

  .final-cta {
    width: min(100% - 24px, 940px);
    margin-top: 52px;
    padding: 34px 20px;
    text-align: left;
  }

  .legal-hero {
    padding-top: 36px;
  }

  .legal-content {
    width: min(100% - 24px, 860px);
    padding-bottom: 52px;
  }

  .legal-section,
  .legal-card {
    padding: 20px;
  }

  .final-cta .hero-actions {
    justify-content: stretch;
  }

  .floating-cta {
    right: 10px;
    bottom: 10px;
    left: 10px;
    max-width: none;
  }

  .floating-cta span {
    font-size: 0.82rem;
  }

  .floating-cta .button {
    width: auto;
    min-width: 116px;
  }
}

@media (max-width: 390px) {
  .header-cta {
    padding-inline: 11px;
  }

  .hero-copy h1 {
    font-size: 2.36rem;
  }

  .faq-question {
    padding-inline: 16px;
  }
}