:root {
  --color-bg: #ffffff;
  --color-bg-alt: #fff7eb;
  --color-text: #1f1a13;
  --color-text-sub: #6b6357;
  --color-border: #f0e5d3;
  --color-primary: #ff9900;
  --color-primary-dark: #e68a00;
  --color-accent: #ff6b00;
  --shadow-soft: 0 8px 24px rgba(255, 153, 0, 0.16);
  --shadow-card: 0 4px 14px rgba(31, 26, 19, 0.06);
  --radius-lg: 20px;
  --radius-md: 12px;
  --max-width: 1080px;
  --font-jp:
    -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Sans",
    "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-jp);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3 {
  margin: 0 0 0.4em;
  line-height: 1.3;
  letter-spacing: 0.01em;
  font-weight: 700;
}

p {
  margin: 0 0 1em;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(255, 247, 235, 0.92);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--color-text);
}

.brand img {
  border-radius: 8px;
}

.site-nav {
  display: flex;
  gap: 22px;
  font-size: 14px;
}

.site-nav a {
  color: var(--color-text-sub);
}

@media (max-width: 540px) {
  .site-nav {
    display: none;
  }
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(circle at 20% 0%, rgba(255, 153, 0, 0.18), transparent 55%),
    radial-gradient(circle at 90% 30%, rgba(255, 107, 0, 0.10), transparent 50%),
    linear-gradient(180deg, #ffffff 0%, var(--color-bg-alt) 100%);
  padding: 64px 24px 80px;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-primary-dark);
  background: rgba(255, 153, 0, 0.15);
  border-radius: 999px;
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(28px, 4.4vw, 46px);
  letter-spacing: -0.01em;
}

.hero .lead {
  font-size: 16px;
  color: var(--color-text-sub);
  margin-bottom: 28px;
}

.hero .lead strong {
  color: var(--color-primary-dark);
  font-weight: 700;
}

.hero-meta {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text-sub);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-shot {
  width: 100%;
  max-width: 560px;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 24px 50px rgba(255, 107, 0, 0.18);
}

@media (max-width: 820px) {
  .hero {
    padding: 48px 20px 56px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 36px;
    text-align: center;
  }
  .hero-copy .store-badges {
    justify-content: center;
  }
}

/* ---------- Store badges ---------- */
.store-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: #111;
  color: #fff;
  border-radius: 12px;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.store-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.18);
  text-decoration: none;
}

.store-badge span {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.store-badge small {
  font-size: 10px;
  letter-spacing: 0.08em;
  opacity: 0.8;
}

.store-badge strong {
  font-size: 16px;
  font-weight: 700;
}

/* ---------- Section heads ---------- */
.section-head {
  max-width: 720px;
  margin: 0 auto 40px;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(24px, 3.2vw, 34px);
}

.section-head p {
  color: var(--color-text-sub);
  margin: 0;
}

/* ---------- Features ---------- */
.features {
  padding: 80px 24px;
  background: var(--color-bg);
}

.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.feature-icon {
  font-size: 28px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 153, 0, 0.15);
  border-radius: 12px;
  margin-bottom: 14px;
}

.feature h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.feature p {
  margin: 0;
  color: var(--color-text-sub);
  font-size: 14px;
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .features {
    padding: 56px 16px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Screenshots ---------- */
.screenshots {
  padding: 80px 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 153, 0, 0.10), transparent 60%),
    var(--color-bg-alt);
  overflow: hidden;
}

.screenshots .section-head {
  padding: 0 24px;
}

.screenshot-list {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
}

.screenshot-list figure {
  margin: 0;
  width: 100%;
  text-align: center;
}

.screenshot-list img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(255, 107, 0, 0.18);
  margin-bottom: 14px;
}

.screenshot-list figcaption {
  font-size: 14px;
  color: var(--color-text-sub);
  font-weight: 500;
}

/* ---------- Platforms ---------- */
.platforms {
  padding: 72px 24px;
  background: var(--color-bg);
}

.platform-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--max-width);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.platform-list li {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 32px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 150px;
  line-height: 1.4;
}

.platform-list span {
  font-weight: 700;
  font-size: 18px;
  color: var(--color-primary-dark);
}

.platform-list small {
  color: var(--color-text-sub);
  font-size: 13px;
}

/* ---------- Download CTA ---------- */
.download {
  padding: 80px 24px;
  background: linear-gradient(135deg, #ff9900 0%, #ff6b00 100%);
  color: #fff;
}

.download-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.download h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  margin-bottom: 8px;
}

.download p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
}

.download .store-badges {
  justify-content: center;
}

.download .store-badge {
  background: #fff;
  color: #111;
}

.download .store-badge small {
  opacity: 0.7;
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 36px 24px 56px;
  background: #1f1a13;
  color: #d6cfc1;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: #fff;
  font-size: 16px;
}

.footer-brand img {
  border-radius: 6px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
  font-size: 14px;
}

.footer-nav a {
  color: #d6cfc1;
}

.footer-nav a:hover {
  color: #fff;
}

.copyright {
  margin: 0;
  color: #8a7f6e;
  font-size: 12px;
}