/* 안산배수로시공 — Jua rounded gothic / teal-navy + red */

:root {
  --ink: #003049;
  --ink-soft: #35566b;
  --accent: #D62828;
  --accent-soft: #f7d9d4;
  --paper: #fdfaf4;
  --paper-alt: #f2ece0;
  --line: #d8cfba;
  --radius: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Jua", "Malgun Gothic", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.75;
  letter-spacing: 0.01em;
}

img { max-width: 100%; height: auto; display: block; border-radius: var(--radius); }

a { color: inherit; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.6em 1em;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* header */
.site-header {
  background: var(--ink);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
}
.wordmark { color: #fff; font-size: 1.3rem; text-decoration: none; }
.main-nav ul { list-style: none; display: flex; gap: 1.6rem; margin: 0; padding: 0; }
.main-nav a { text-decoration: none; color: #f2ece0; font-size: 1rem; }
.main-nav a[aria-current="page"] { color: var(--accent); }
.main-nav { display: none; }

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 2px solid #fff;
  border-radius: 8px;
  cursor: pointer;
}
.hamburger span { display: block; width: 20px; height: 2px; background: #fff; margin: 0 auto; }

.mobile-nav { background: var(--ink-soft); }
.mobile-nav ul { list-style: none; margin: 0; padding: 0.5rem 1.25rem 1rem; }
.mobile-nav a { display: block; padding: 0.6rem 0; color: #fff; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,0.15); }

@media (min-width: 760px) {
  .main-nav { display: block; }
  .hamburger { display: none; }
  .mobile-nav { display: none !important; }
}

/* page shell + side nav */
.page-shell {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2rem;
  padding: 2rem 1.25rem 4rem;
  align-items: start;
}

.side-nav {
  position: sticky;
  top: 90px;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  padding: 1.2rem 1.1rem;
  border-bottom: 6px solid var(--accent);
}
.side-nav-title {
  margin: 0 0 0.6rem;
  font-size: 1rem;
  color: var(--accent-soft);
}
.side-nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.35rem; }
.side-nav a {
  display: block;
  text-decoration: none;
  color: #f2ece0;
  padding: 0.5rem 0.6rem;
  border-radius: 10px;
  font-size: 0.98rem;
}
.side-nav a:hover,
.side-nav a.active {
  background: var(--accent);
  color: #fff;
}

@media (max-width: 900px) {
  .page-shell { grid-template-columns: 1fr; }
  .side-nav {
    position: static;
    border-radius: var(--radius);
  }
  .side-nav ul {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }
  .side-nav a { white-space: nowrap; }
}

/* content */
.content-col { min-width: 0; }
.content-col section { margin-bottom: 2.6rem; }

h1 {
  font-size: 2.2rem;
  margin: 0 0 0.6rem;
  color: var(--ink);
}
h2 {
  font-size: 1.5rem;
  color: var(--ink);
  border-left: 8px solid var(--accent);
  padding-left: 0.6rem;
  margin: 0 0 0.9rem;
}
.lead {
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin: 0 0 1.4rem;
  max-width: 60ch;
}
p { margin: 0 0 1rem; }

.hero picture { margin-top: 1.2rem; }

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}
.checklist li {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem 0.9rem 2.6rem;
  position: relative;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 1rem;
  top: 0.85rem;
  color: var(--accent);
  font-weight: bold;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
}
.faq-item .q { color: var(--accent); margin: 0 0 0.4rem; font-size: 1.05rem; }
.faq-item .a { margin: 0; color: var(--ink-soft); }

.cta-block {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
}
.cta-block h2 { color: #fff; border-left: none; padding-left: 0; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-top: 1.2rem; }

.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 1.05rem;
  border: 2px solid transparent;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-outline { background: transparent; color: #fff; border-color: #fff; }

/* footer */
.site-footer {
  background: var(--ink);
  color: #f2ece0;
  padding: 2.2rem 1.25rem 5rem;
}
.site-footer nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin: 0 0 1.2rem;
  padding: 0;
  max-width: 1200px;
  margin-inline: auto;
}
.site-footer nav a { color: #f2ece0; text-decoration: none; }
.site-footer address {
  font-style: normal;
  max-width: 1200px;
  margin: 0 auto 0.8rem;
  color: #cfd7dc;
  line-height: 1.8;
}
.site-footer address a { color: var(--accent-soft); }
.site-footer p { max-width: 1200px; margin: 0 auto; color: #9fb0ba; font-size: 0.85rem; }

/* mobile sticky cta */
.mobile-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  z-index: 60;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.15);
}
.mobile-cta { flex: 1; text-align: center; padding: 0.95rem 0; text-decoration: none; font-size: 1rem; }
.mobile-cta.call { background: var(--accent); color: #fff; }
.mobile-cta.inquiry { background: var(--ink); color: #fff; }

@media (min-width: 760px) {
  .mobile-cta-bar { display: none; }
  .site-footer { padding-bottom: 2.2rem; }
}