:root {
  --bg: #fff6ef;
  --bg-alt: #ffe7d4;
  --bg-accent: #fff1e8;
  --text: #2b211c;
  --muted: #6f5f55;
  --accent: #ff7a6b;
  --accent-dark: #e55749;
  --leaf: #50b37b;
  --border: rgba(43, 33, 28, 0.12);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
  --font-display: 'Mochiy Pop P One', 'Zen Maru Gothic', sans-serif;
  --font-body: 'Zen Maru Gothic', 'Hiragino Maru Gothic ProN', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: min(1100px, 90vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 246, 239, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1.5rem;
}

.brand {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  font-size: 1.1rem;
}

.brand-mark {
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: 0 8px 18px rgba(255, 122, 107, 0.25);
}

.site-nav {
  display: flex;
  gap: 1.2rem;
  font-size: 0.95rem;
}

.site-nav a {
  position: relative;
  padding-bottom: 0.2rem;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.hero {
  position: relative;
  padding: 5.5rem 0 6rem;
  background: radial-gradient(circle at 20% 20%, #ffe9d6, transparent 55%),
              radial-gradient(circle at 80% 0%, #ffd5cf, transparent 45%),
              linear-gradient(120deg, #fff6ef 30%, #ffe1d6 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  gap: 3rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin: 0 0 1rem;
}

.hero-lead {
  color: var(--muted);
  max-width: 30rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-tags {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.hero-tags span {
  background: #fff;
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  border: 1px dashed rgba(43, 33, 28, 0.2);
  font-size: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.8rem 1.6rem;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn.primary {
  background: linear-gradient(120deg, var(--accent), #ffb26b);
  color: #fff;
  box-shadow: 0 12px 24px rgba(255, 122, 107, 0.35);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 28px rgba(255, 122, 107, 0.4);
}

.btn.ghost {
  border-color: rgba(43, 33, 28, 0.3);
  color: var(--text);
  background: transparent;
}

.btn.ghost:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
  transform: none;
  box-shadow: none;
}

.hero-visual {
  position: relative;
  min-height: 360px;
}

.hero-panda {
  position: absolute;
  width: clamp(140px, 22vw, 220px);
  animation: float 6s ease-in-out infinite;
}

.panda-soft {
  filter: drop-shadow(0 10px 18px rgba(92, 160, 110, 0.45))
          drop-shadow(0 2px 6px rgba(92, 160, 110, 0.25));
}

.panda-main {
  right: 5%;
  bottom: 0;
  animation-delay: 0.2s;
}

.panda-side {
  left: 0;
  bottom: 10%;
  animation-delay: 0.8s;
}

.panda-sleep {
  right: 40%;
  top: 12%;
  width: clamp(120px, 20vw, 190px);
  animation-delay: 1.4s;
}

.hero-card {
  position: absolute;
  left: 20%;
  bottom: 8%;
  background: #fff;
  border-radius: 20px;
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  box-shadow: var(--shadow);
}

.hero-card img {
  width: 56px;
  height: 56px;
}

.hero-card p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.hero-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
}

.bubble {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  filter: blur(1px);
  animation: pulse 8s ease-in-out infinite;
}

.bubble-1 {
  width: 140px;
  height: 140px;
  top: 5%;
  left: 10%;
}

.bubble-2 {
  width: 200px;
  height: 200px;
  top: 35%;
  right: 15%;
  animation-delay: 1.2s;
}

.bubble-3 {
  width: 110px;
  height: 110px;
  bottom: 10%;
  left: 35%;
  animation-delay: 2s;
}

.section {
  padding: 5rem 0;
}

.section.alt {
  background: var(--bg-accent);
}

.section-head {
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 0.6rem;
}

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

.feature-grid {
  display: grid;
  gap: 1.6rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature-card {
  background: #fff;
  border-radius: 20px;
  padding: 1.6rem;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(43, 33, 28, 0.08);
}

.feature-card h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

.steps {
  display: grid;
  gap: 1.2rem;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  background: #fff;
  padding: 1.4rem 1.6rem;
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.06);
}

.step-number {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--accent);
}

.panda-gallery {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.panda-gallery figure {
  margin: 0;
  background: #fff;
  border-radius: 18px;
  padding: 1rem;
  border: 1px solid rgba(43, 33, 28, 0.08);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.panda-gallery figcaption {
  margin-top: 0.6rem;
  font-weight: 600;
}

.screen-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.screen-group {
  margin-top: 2rem;
}

.screen-group h3 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.screen-grid img {
  border-radius: 20px;
  background: #fff;
  padding: 0.6rem;
  border: 1px solid rgba(43, 33, 28, 0.12);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.video-card {
  background: #fff;
  border-radius: 28px;
  padding: 1.2rem;
  border: 1px solid rgba(43, 33, 28, 0.12);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.1);
}

.video-card video {
  width: 100%;
  border-radius: 20px;
  display: block;
  background: #000;
}

.download-card {
  background: #fff;
  border-radius: 28px;
  padding: 2.4rem;
  display: grid;
  gap: 2rem;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  box-shadow: var(--shadow);
  border: 1px solid rgba(43, 33, 28, 0.08);
}

.download-card h2 {
  font-family: var(--font-display);
  margin-top: 0;
}

.download-actions {
  display: grid;
  gap: 0.8rem;
  justify-items: start;
}

.text-link {
  font-weight: 600;
  color: var(--accent-dark);
}

.site-footer {
  background: #2b211c;
  color: #fef7f1;
  padding: 3rem 0 2rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: center;
}

.footer-links {
  display: grid;
  gap: 0.6rem;
}

.footer-links a {
  color: #ffd7c2;
}

.copyright {
  text-align: center;
  margin: 2rem 0 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.75;
  }
  50% {
    transform: scale(1.08);
    opacity: 0.4;
  }
}

@media (max-width: 820px) {
  .site-nav {
    display: none;
  }

  .hero-visual {
    min-height: 300px;
  }

  .hero-card {
    position: static;
    margin-top: 1rem;
  }
}

@media (max-width: 600px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-top: 4rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-card {
    width: 100%;
  }
}