/* 인천서구배수로시공 - coastal/water zigzag theme */

:root {
  --ink: #03045E;
  --accent: #00B4D8;
  --accent-soft: #90E0EF;
  --foam: #CAF0F8;
  --paper: #F4FBFD;
  --text: #1b2340;
  --font-display: "Yeon Sung", cursive;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 400;
  letter-spacing: 0.02em;
}

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

a { color: var(--ink); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.6em 1em;
  z-index: 200;
}
.skip-link:focus { left: 0; }

/* Header */
.site-header {
  background: var(--ink);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 3px solid var(--accent);
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.8em 1.2em;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.wordmark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: #fff;
  text-decoration: none;
}
.main-nav { display: none; }
.main-nav ul { list-style: none; display: flex; gap: 1.5em; margin: 0; padding: 0; }
.main-nav a { color: #fff; text-decoration: none; }
.main-nav a[aria-current="page"] { color: var(--accent-soft); border-bottom: 2px solid var(--accent); }

.hamburger {
  background: none;
  border: 2px solid var(--accent);
  border-radius: 6px;
  width: 42px;
  height: 38px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  align-items: center;
  cursor: pointer;
}
.hamburger span { width: 22px; height: 2px; background: var(--accent-soft); display: block; }

.mobile-nav { background: var(--ink); border-top: 1px solid var(--accent); }
.mobile-nav ul { list-style: none; margin: 0; padding: 0.5em 1.2em 1em; }
.mobile-nav li { padding: 0.6em 0; border-bottom: 1px solid rgba(255,255,255,0.15); }
.mobile-nav a { color: #fff; text-decoration: none; display: block; }

@media (min-width: 800px) {
  .main-nav { display: block; }
  .hamburger { display: none; }
  .mobile-nav { display: none; }
}

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--ink) 0%, #061a7a 65%, #0b2fa0 100%);
  color: #fff;
  padding: 3em 1.2em 4em;
  display: flex;
  flex-direction: column;
  gap: 2em;
  max-width: 1100px;
  margin: 0 auto;
}
.hero h1 {
  color: #fff;
  font-size: 2.1rem;
  margin: 0 0 0.5em;
}
.hero .lead { font-size: 1.05rem; color: var(--foam); max-width: 42em; }
.hero-media { border-radius: 10px; overflow: hidden; border: 3px solid var(--accent); box-shadow: 0 10px 30px rgba(0,0,0,0.25); }

@media (min-width: 800px) {
  .hero { flex-direction: row; align-items: center; padding: 4.5em 2em 6em; }
  .hero-text { flex: 1; }
  .hero-media { flex: 1; }
}

/* Wave dividers - coastal motif */
.wave-divider {
  height: 70px;
  background-color: var(--paper);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'><path d='M0,40 C200,100 300,0 500,50 C700,100 800,10 1000,55 C1100,75 1150,60 1200,50 L1200,0 L0,0 Z' fill='%2303045E'/></svg>");
  background-size: 100% 100%;
  background-repeat: no-repeat;
  margin-top: -1px;
}
.wave-divider.flip { transform: scaleY(-1); }

/* Zigzag sections */
.zigzag-section {
  background: var(--paper);
  padding: 0.5em 1.2em 2.5em;
}
.zigzag-section.alt { background: var(--foam); }
.zigzag-row {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5em;
}
.zigzag-media picture, .zigzag-media img {
  border-radius: 10px;
  border: 3px solid var(--accent);
}
.zigzag-text h2 { font-size: 1.5rem; margin-top: 0; }
.zigzag-text.full { max-width: 60em; }
.zigzag-text p { margin: 0.8em 0; }

@media (min-width: 800px) {
  .zigzag-row { flex-direction: row; align-items: center; gap: 3em; }
  .zigzag-row.reverse { flex-direction: row-reverse; }
  .zigzag-media, .zigzag-text { flex: 1; }
}

/* Checklist */
.checklist-section {
  background: var(--ink);
  color: #fff;
  padding: 2.5em 1.2em;
}
.checklist-section h2 { color: #fff; max-width: 1100px; margin: 0 auto 0.8em; }
.checklist {
  max-width: 1100px;
  margin: 0 auto;
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.8em;
}
.checklist li {
  background: rgba(255,255,255,0.06);
  border-left: 4px solid var(--accent);
  padding: 0.9em 1.1em;
  border-radius: 6px;
}
@media (min-width: 800px) {
  .checklist { grid-template-columns: 1fr 1fr; }
}

/* FAQ */
.faq-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5em 1.2em;
}
.faq-item {
  border-bottom: 1px solid var(--accent-soft);
  padding: 1em 0;
}
.faq-item h3 { font-size: 1.1rem; margin: 0 0 0.4em; }
.faq-item p { margin: 0; }

/* CTA */
.cta-section {
  background: linear-gradient(120deg, var(--accent) 0%, var(--ink) 100%);
  color: #fff;
  text-align: center;
  padding: 3em 1.2em;
}
.cta-section h2 { color: #fff; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 1em; justify-content: center; margin-top: 1.3em; }
.btn {
  display: inline-block;
  padding: 0.85em 1.8em;
  border-radius: 999px;
  text-decoration: none;
  font-weight: bold;
}
.btn-primary { background: #fff; color: var(--ink); }
.btn-outline { border: 2px solid #fff; color: #fff; }

/* Footer */
.site-footer {
  background: #020339;
  color: var(--foam);
  padding: 2.5em 1.2em 6em;
}
.site-footer nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.2em;
  padding: 0;
  max-width: 1100px;
  margin: 0 auto 1.5em;
}
.site-footer a { color: var(--foam); }
.site-footer address { max-width: 1100px; margin: 0 auto; font-style: normal; line-height: 1.8; }
.site-footer p { max-width: 1100px; margin: 1em auto 0; opacity: 0.7; font-size: 0.85rem; }

/* Mobile sticky CTA bar */
.mobile-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  z-index: 150;
}
.mobile-cta {
  flex: 1;
  text-align: center;
  padding: 0.9em 0;
  text-decoration: none;
  font-weight: bold;
  color: #fff;
}
.mobile-cta.call { background: var(--ink); }
.mobile-cta.inquiry { background: var(--accent); }

@media (min-width: 800px) {
  .mobile-cta-bar { display: none; }
  .site-footer { padding-bottom: 2.5em; }
}

/* ---------- Photo note ---------- */
.photo-note-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.2em 2.5em;
}
.photo-note-section h2 { font-size: 1.5rem; margin: 0 0 0.8em; }
.photo-note { margin: 0; }
.photo-note picture, .photo-note img {
  border-radius: 10px;
  border: 3px solid var(--accent);
}
.photo-note figcaption {
  margin-top: 0.6em;
  color: var(--text);
  font-size: 0.95rem;
}

/* ---------- Related links ---------- */
.related-links {
  max-width: 1140px;
  margin: 0 auto 3.5rem;
  padding: 2rem 1.25rem 0;
  border-top: 1px solid var(--ink);
}
.related-links h2 {
  font-size: 1.4rem;
  margin: 0 0 1.5rem;
  color: var(--ink);
}
.related-links-group { margin-bottom: 1.25rem; }
.related-links-group:last-child { margin-bottom: 0; }
.related-links-group h3 {
  font-family: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  margin: 0 0 0.6rem;
  color: var(--ink);
  opacity: 0.75;
}
.related-links-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.25rem;
}
.related-links-group a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  border-bottom: 1px solid transparent;
}
.related-links-group a:hover { border-bottom-color: var(--ink); }

.site-footer nav{display:none}
.site-footer{padding-top:20px}
.site-footer address{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:4px 10px;line-height:1.5}