:root {
  --bg: #ffffff;
  --fg: #222222;
  --accent: #ff9d3c;
  --muted: #666;
  --border: #e5e5e5;
  --radius: 14px;
  --transition: .25s ease;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #eaeaea;
    --accent: #ffa94d;
    --muted: #999;
    --border: #2a2a2a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui,-apple-system,"Segoe UI","PingFang SC","Helvetica Neue",Arial,sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.site-header {
  padding: 4.5rem 1rem 2.5rem;
  text-align: center;
  background: linear-gradient(135deg,#ffe8cc,#fff5e6 55%,#ffffff);
  position: relative;
}
@media (prefers-color-scheme: dark) {
  .site-header {
    background: linear-gradient(135deg,#33220e,#2b1c10 55%,#181818);
  }
}
.site-header h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem,5vw,3rem);
  letter-spacing: .05em;
}
.subtitle {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.05rem;
  color: var(--muted);
}
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 1.3rem;
  transform: translateX(-50%);
  font-size: .7rem;
  letter-spacing: .15em;
  color: var(--muted);
  animation: pulse 2.6s ease-in-out infinite;
  user-select: none;
}
@keyframes pulse {
  0%,100% { opacity: .2; }
  50% { opacity: .75; }
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}
.feature {
  display: grid;
  gap: 1.75rem;
  align-items: center;
  margin-bottom: 3rem;
}
@media (min-width: 760px) {
  .feature {
    grid-template-columns: 1fr 1fr;
  }
  .feature:nth-of-type(even) .feature-media {
    order: 2;
  }
}
.feature-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fafafa;
  box-shadow: 0 4px 18px -4px rgba(0,0,0,0.12);
}
@media (prefers-color-scheme: dark) {
  .feature-media {
    background: #1d1d1d;
    box-shadow: 0 4px 18px -4px rgba(0,0,0,0.55);
  }
}
.feature-media img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform .9s cubic-bezier(.22,.61,.36,1);
}
.feature-media:hover img {
  transform: scale(1.05);
}
.feature-text h2 {
  margin: 0 0 .75rem;
  font-size: clamp(1.5rem,3.5vw,2rem);
  line-height: 1.25;
}
.feature-text p {
  margin: 0 0 1.1rem;
  color: var(--muted);
}
.tagline {
  background: var(--accent);
  color: #fff;
  display: inline-block;
  padding: .4rem .75rem;
  font-size: .75rem;
  letter-spacing: .08em;
  border-radius: 999px;
  margin-bottom: .9rem;
  font-weight: 600;
}
.plans h2 {
  margin-top: 0;
}
.grid-cards {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
}
@media (min-width: 640px) {
  .grid-cards {
    grid-template-columns: repeat(auto-fill,minmax(260px,1fr));
  }
}
.card {
  border: 1px solid var(--border);
  padding: 1.05rem .95rem 1.2rem;
  border-radius: 12px;
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}
@media (prefers-color-scheme: dark) {
  .card {
    background: #1b1b1b;
  }
}
.card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 14px -2px rgba(0,0,0,0.18);
}
.card h3 {
  margin: 0 0 .55rem;
  font-size: 1.08rem;
}
.card p {
  margin: 0;
  font-size: .88rem;
  color: var(--muted);
}

.site-footer {
  padding: 2.5rem 1rem;
  text-align: center;
  font-size: .85rem;
  background: #f8f8f8;
  border-top: 1px solid var(--border);
}
@media (prefers-color-scheme: dark) {
  .site-footer {
    background: #161616;
  }
}
.site-footer a {
  color: var(--accent);
  text-decoration: none;
}
.site-footer a:hover {
  text-decoration: underline;
}
.icp {
  margin-top: .6rem;
  font-size: .72rem;
  letter-spacing: .05em;
  color: var(--muted);
}
.fade-in {
  opacity: 0;
  transform: translateY(12px);
  animation: fade .8s ease forwards;
}
.fade-in:nth-of-type(2) { animation-delay: .15s; }
.fade-in:nth-of-type(3) { animation-delay: .3s; }
@keyframes fade {
  to { opacity: 1; transform: translateY(0); }
}