:root {
  --yeondu: #9cd63a;
  --yeondu-soft: #eef8dc;
  --yeondu-deep: #4f7a12;
  --ink: #16200c;
  --text: #2c3524;
  --muted: #66705c;
  --line: #e3e8da;
  --bg: #ffffff;
  --bg-alt: #f7faf2;
  --radius: 18px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { color: var(--ink); line-height: 1.3; letter-spacing: -0.02em; margin: 0; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: 1.2rem; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

.eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yeondu-deep);
  margin: 0 0 0.75rem;
}

/* nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); font-size: 1.05rem; }
.logo small { font-weight: 600; color: var(--muted); font-size: 0.75rem; margin-left: 4px; letter-spacing: 0.06em; }
.logo-mark {
  width: 22px; height: 22px;
  background: var(--yeondu);
  border-radius: 0 60% 0 60%;
  box-shadow: inset -4px -4px 0 rgba(79, 122, 18, 0.25);
}
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 0.95rem; color: var(--muted); }
.nav-links a:hover { color: var(--ink); }
.nav-cta { color: var(--ink) !important; font-weight: 700; padding: 8px 14px; border-radius: 999px; background: var(--yeondu-soft); }

/* hero */
.hero { position: relative; overflow: hidden; padding: 120px 0 110px; }
.hero h1 { font-size: clamp(2.1rem, 5.6vw, 3.8rem); font-weight: 800; }
.hl {
  background: linear-gradient(transparent 62%, rgba(156, 214, 58, 0.55) 62%);
  padding: 0 4px;
}
.lead { max-width: 620px; margin: 1.5rem 0 2.25rem; font-size: 1.12rem; color: var(--muted); }
.lead strong { color: var(--ink); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-sprout {
  position: absolute; z-index: -1;
  right: -120px; top: -80px;
  width: 520px; height: 520px;
  background: radial-gradient(circle at 30% 30%, rgba(156, 214, 58, 0.45), rgba(156, 214, 58, 0) 65%);
  border-radius: 0 60% 0 60%;
  transform: rotate(-12deg);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 24px; border-radius: 999px; font-weight: 700; font-size: 0.98rem;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--yeondu); color: var(--ink); box-shadow: 0 6px 20px rgba(156, 214, 58, 0.35); }
.btn-primary:hover { background: #a8de4c; }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--yeondu); }
.btn-dark { background: var(--ink); color: #fff; }

/* sections */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.about { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.about-body p { margin: 0 0 1rem; font-size: 1.05rem; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 2rem; }
.card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { border-color: var(--yeondu); box-shadow: 0 10px 30px rgba(22, 32, 12, 0.06); }
.card p { margin: 0.5rem 0 1rem; color: var(--muted); }
.card p strong { color: var(--ink); }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--yeondu-soft); color: var(--yeondu-deep);
  margin-bottom: 18px;
}
.card-icon svg { width: 24px; height: 24px; }
.card-tag { font-size: 0.8rem !important; font-weight: 700; color: var(--yeondu-deep) !important; margin: 0 0 4px !important; }
.card-product { background: var(--ink); border-color: var(--ink); }
.card-product h3 { color: #fff; }
.card-product p, .card-product .checks { color: #c3cbb8; }
.card-product p strong { color: var(--yeondu); }
.card-product .card-tag { color: var(--yeondu) !important; }
.card-product .card-icon { background: rgba(156, 214, 58, 0.15); color: var(--yeondu); }
.card-product .card-link { color: var(--yeondu); }
.card-soon { background: transparent; border-style: dashed; }

.checks { list-style: none; padding: 0; margin: 0 0 1.5rem; font-size: 0.95rem; }
.checks li { position: relative; padding-left: 22px; margin-bottom: 6px; }
.checks li::before {
  content: ""; position: absolute; left: 2px; top: 0.6em;
  width: 9px; height: 9px; background: var(--yeondu); border-radius: 0 60% 0 60%;
}
.card-link { margin-top: auto; font-weight: 700; color: var(--yeondu-deep); }

/* steps */
.steps { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps li { border-top: 2px solid var(--yeondu); padding-top: 20px; }
.steps p { color: var(--muted); margin: 0.5rem 0 0; }
.step-num { display: block; font-weight: 800; color: var(--yeondu-deep); margin-bottom: 8px; }

/* contact */
.contact { background: var(--yeondu); padding: 72px 0; }
.contact-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.contact h2 { margin-bottom: 0.4rem; }
.contact p { margin: 0; color: #2f4310; }

/* footer */
.footer { padding: 40px 0; border-top: 1px solid var(--line); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.copy { margin: 0; font-size: 0.85rem; color: var(--muted); }

@media (max-width: 900px) {
  .about { grid-template-columns: 1fr; gap: 16px; }
  .cards, .steps { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding: 80px 0 72px; }
  .section { padding: 72px 0; }
  .hero-sprout { width: 320px; height: 320px; right: -140px; }
}