@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css");
@font-face {
  font-family: "Tenada";
  src: url("https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2210-2@1.0/Tenada.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

:root {
  --color-bg: #FFFFFF;
  --color-deep: #16302E;
  --color-teal: #2F8F83;
  --color-orange: #F0A202;
  --color-surf: #DCE8E6;
  --font-display: "Tenada", system-ui, -apple-system, "Malgun Gothic", sans-serif;
  --font-body: "Pretendard Variable", system-ui, -apple-system, "Malgun Gothic", sans-serif;
}

body {
  background: var(--color-bg);
  color: var(--color-deep);
  font-family: var(--font-body);
}

.site-header__logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-deep);
}
.site-header__nav a {
  font-size: 0.9rem;
  color: var(--color-deep);
}
.site-header__nav a:hover,
.site-header__nav a:focus-visible {
  color: var(--color-teal);
}

/* ---- 히어로 오버랩 카드 ---- */
.hero {
  background: var(--color-deep);
  color: #FFFFFF;
  padding-bottom: clamp(4rem, 10vw, 6rem);
}
.hero__lead { color: #FFFFFF; }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.5vw, 2.6rem);
}
.hero__cta {
  background: var(--color-orange);
  color: var(--color-deep);
  border-radius: 999px;
  padding: 0.85em 1.7em;
  font-weight: 700;
  width: fit-content;
}
.overlap-card {
  background: #FFFFFF;
  border-radius: 16px;
  max-width: 640px;
  margin: -3.5rem auto 0;
  padding: 1.5rem clamp(1.25rem, 4vw, 2rem);
  box-shadow: 0 12px 30px rgba(22,48,46,0.15);
  position: relative;
  z-index: 2;
}
.overlap-card h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.section h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
}

/* ---- 3단 그리드 ---- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-block: 1.5rem;
}
.grid-3 .card {
  background: var(--color-surf);
  border-radius: 12px;
  padding: 1.1rem;
}
.grid-3 h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin-bottom: 0.4rem;
}
.grid-3 p { font-size: 0.88rem; line-height: 1.6; }
@media (max-width: 760px) {
  .grid-3 { grid-template-columns: 1fr; }
}

/* ---- 시그니처: 배수홀 단면 도해 ---- */
.cross-section {
  max-width: 500px;
  margin: 1.5rem auto;
  border: 3px solid var(--color-deep);
  border-radius: 8px;
  padding: 1.5rem 1.25rem 0.75rem;
  background: var(--color-surf);
  position: relative;
}
.cross-section .frame-line {
  height: 10px;
  background: var(--color-deep);
  border-radius: 4px;
}
.cross-section .hole {
  width: 32px;
  height: 32px;
  border-radius: 4px;
  background: #FFFFFF;
  border: 3px solid var(--color-teal);
  margin: 0.75rem auto 0;
}
.cross-section .flow {
  text-align: center;
  color: var(--color-teal);
  font-size: 0.85rem;
  margin-top: 0.5rem;
  font-weight: 700;
}
.cross-section .labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  margin-top: 1rem;
  color: var(--color-deep);
}

/* ---- 후기 ---- */
.reviews blockquote {
  background: var(--color-surf);
  border-radius: 12px;
  padding: 1.1rem;
}
.reviews cite {
  color: var(--color-deep);
  font-size: 0.85rem;
  font-weight: 700;
}

/* ---- figure ---- */
figure figcaption {
  font-size: 0.85rem;
  color: var(--color-deep);
  text-align: center;
}

/* ---- CTA ---- */
.cta-block {
  background: var(--color-deep);
  color: #FFFFFF;
}
.cta-block__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
}
.cta-block__button {
  background: var(--color-orange);
  color: var(--color-deep);
  border-radius: 999px;
  font-weight: 700;
}

/* ---- related links ---- */
.related-links__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}
.related-links a {
  background: var(--color-surf);
  border-radius: 999px;
  padding: 0.5em 1em;
  font-size: 0.88rem;
}
.related-links a:hover,
.related-links a:focus-visible {
  background: var(--color-deep);
  color: #FFFFFF;
}

/* ---- footer ---- */
.site-footer {
  background: var(--color-deep);
  color: #FFFFFF;
  font-size: 0.85rem;
}
.site-footer nav a:hover,
.site-footer nav a:focus-visible {
  color: var(--color-orange);
}