:root {
  color-scheme: light;
  font-family: "Nunito Sans", "Avenir Next", Avenir, system-ui, sans-serif;
  color: #123d33;
  background: #f3f8f2;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --evergreen: #073b2c;
  --mint: #a9e7d1;
  --coral: #ec766b;
  --sunshine: #ffd460;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  padding: clamp(14px, 3vw, 38px);
  background:
    radial-gradient(circle at 8% 12%, rgba(169, 231, 209, .55), transparent 27rem),
    radial-gradient(circle at 93% 87%, rgba(255, 212, 96, .3), transparent 24rem),
    #f3f8f2;
}

a { color: #075c49; text-underline-offset: .2em; }
a:hover { color: #a84d48; }
a:focus-visible { outline: 3px solid #e36c62; outline-offset: 4px; }

.welcome-shell { width: min(100%, 1040px); margin: 0 auto; }
.welcome-card {
  overflow: hidden;
  border: 1px solid #d5e8de;
  border-radius: 28px;
  background: #fffdf7;
  box-shadow: 0 24px 70px rgba(11, 58, 43, .12);
}
.welcome-hero {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  background: #e8f5ec;
}
.welcome-content { padding: clamp(24px, 5vw, 56px); }
.eyebrow, .content-label {
  margin: 0 0 8px;
  color: #24735e;
  font-size: .78rem;
  font-weight: 850;
  letter-spacing: .11em;
  line-height: 1.4;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 780px;
  margin-bottom: 12px;
  color: var(--evergreen);
  font-family: "Fredoka", "Trebuchet MS", system-ui, sans-serif;
  font-size: clamp(2.2rem, 6vw, 4.35rem);
  font-weight: 650;
  letter-spacing: -.035em;
  line-height: 1.04;
}
.welcome-lede {
  max-width: 700px;
  margin-bottom: 28px;
  color: #3c5e52;
  font-size: clamp(1.08rem, 2.4vw, 1.35rem);
  line-height: 1.6;
}
.download-area { max-width: 620px; }
.download-button {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 22px;
  border: 2px solid #07513e;
  border-radius: 16px;
  background: linear-gradient(100deg, #07513e, #0a6950);
  box-shadow: 0 8px 0 #b9dfcf;
  color: white;
  font-size: clamp(1.08rem, 2.6vw, 1.3rem);
  font-weight: 850;
  line-height: 1.25;
  text-decoration: none;
  transition: transform 140ms ease, box-shadow 140ms ease, filter 140ms ease;
}
.download-button:hover { color: white; filter: brightness(1.08); transform: translateY(-2px); box-shadow: 0 10px 0 #b9dfcf; }
.download-button:active { transform: translateY(3px); box-shadow: 0 3px 0 #b9dfcf; }
.download-arrow { font-size: 1.65rem; line-height: 1; }
.home-link { margin: 19px 0 8px; font-weight: 800; }
.household-note { margin: 0; color: #536c61; font-size: .92rem; }
.download-status {
  margin: 18px 0 0;
  padding: 13px 16px;
  border-left: 4px solid #0b765b;
  border-radius: 8px;
  background: #e9f7ef;
  color: #123d33;
  font-weight: 800;
}
.download-status a { display: inline-block; margin-left: 8px; white-space: nowrap; }
.contents { margin-top: clamp(36px, 6vw, 58px); }
.contents h2 {
  margin-bottom: 17px;
  color: var(--evergreen);
  font-family: "Fredoka", "Trebuchet MS", system-ui, sans-serif;
  font-size: clamp(1.55rem, 3vw, 2.1rem);
}
.contents-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.content-block {
  min-width: 0;
  padding: 19px;
  border: 1px solid #d8e9df;
  border-radius: 16px;
  background: #f8fbf6;
}
.content-block:nth-child(2) { background: #fff9e8; border-color: #f2e3b4; }
.content-block:nth-child(3) { background: #fff4f0; border-color: #f2d6cc; }
.content-label { margin-bottom: 8px; font-size: .7rem; }
.content-block h3 { margin-bottom: 8px; color: #173f34; font-size: 1.08rem; line-height: 1.35; }
.content-block p:last-child { margin-bottom: 0; color: #4a6257; font-size: .96rem; line-height: 1.55; }
.use-note {
  margin: 25px 0 0;
  padding: 17px 19px;
  border-radius: 13px;
  background: #eef7f1;
  color: #264e42;
  font-size: .96rem;
  font-weight: 700;
  line-height: 1.55;
}
.welcome-footer {
  display: flex;
  width: min(100%, 1040px);
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 22px;
  margin: 21px auto 0;
  color: #50685e;
  font-size: .86rem;
  text-align: center;
}
.welcome-footer a { font-weight: 750; }
.privacy-shell { width: min(100%, 760px); margin: 4vh auto; }
.privacy-card { padding: clamp(24px, 5vw, 48px); border: 1px solid #d5e8de; border-radius: 24px; background: #fffdf7; box-shadow: 0 20px 60px rgba(11, 58, 43, .1); }
.privacy-card h1 { font-size: clamp(2rem, 5vw, 3rem); }
.privacy-card p { color: #405e52; font-size: 1rem; line-height: 1.7; }
.privacy-back { display: inline-block; margin-bottom: 24px; font-weight: 800; }

@media (max-width: 700px) {
  body { padding: 12px; }
  .welcome-card { border-radius: 19px; }
  .welcome-hero { min-height: 160px; }
  .welcome-content { padding: 25px 20px 23px; }
  .contents-grid { grid-template-columns: 1fr; gap: 10px; }
  .content-block { padding: 16px; }
  .download-button { min-height: 62px; padding: 14px 17px; border-radius: 13px; }
  .welcome-footer { padding: 0 8px 12px; gap: 7px 14px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}