/* 용인배수로시공 — Hahmlet serif, violet/gold magazine card-grid
   Distinct card treatment: thick left accent bar + notched top-right/
   bottom-left corners + overlapping numbered badge (not a plain
   top-border or plain left-bar rectangle used on other card-grid pages). */

:root {
  --ink: #3D348B;
  --ink-deep: #241f5c;
  --accent: #F7B801;
  --paper: #FBF8F1;
  --paper-alt: #F1ECFB;
  --text: #241f36;
  --text-soft: #55507a;
  --line: #DAD3F2;
  --font-display: "Hahmlet", serif;
  --font-body: "Hahmlet", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); color: var(--ink-deep); font-weight: 800; line-height: 1.35; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: #fff; padding: 0.7em 1.2em; z-index: 200;
}
.skip-link:focus { left: 0.5em; top: 0.5em; }

/* 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: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem 1.2rem;
}
.wordmark {
  font-family: var(--font-display); font-weight: 800; font-size: 1.3rem;
  color: #fff; text-decoration: none; letter-spacing: 0.02em;
}
.main-nav ul { list-style: none; display: flex; gap: 1.8rem; margin: 0; padding: 0; }
.main-nav a {
  text-decoration: none; color: #EDE9FB; font-weight: 600; font-size: 0.98rem;
  padding-bottom: 4px; border-bottom: 2px solid transparent;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { border-bottom-color: var(--accent); color: #fff; }
.main-nav { display: none; }

.hamburger {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 36px; background: none; border: 1px solid var(--accent);
  border-radius: 4px; cursor: pointer;
}
.hamburger span { display: block; height: 2px; width: 20px; margin: 0 auto; background: #fff; }

.mobile-nav { background: var(--ink-deep); border-top: 1px solid #4d44a8; }
.mobile-nav ul { list-style: none; margin: 0; padding: 0.5rem 1.2rem 1rem; }
.mobile-nav a {
  display: block; padding: 0.75em 0; color: #EDE9FB; text-decoration: none;
  border-bottom: 1px solid #4d44a8; font-weight: 600;
}

@media (min-width: 860px) {
  .main-nav { display: block; }
  .hamburger { display: none; }
  .mobile-nav { display: none !important; }
}

/* Hero */
.hero { position: relative; background: var(--ink); }
.hero-img { width: 100%; max-height: 460px; object-fit: cover; opacity: 0.55; }
.hero-text {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  justify-content: center; padding: 2rem 1.3rem; max-width: 900px; margin: 0 auto;
  color: #fff;
}
.hero-kicker {
  font-weight: 600; letter-spacing: 0.06em; color: var(--accent);
  margin: 0 0 0.6rem; font-size: 0.95rem;
}
.hero-text h1 {
  color: #fff; font-size: clamp(1.9rem, 5vw, 3rem); margin: 0 0 0.8rem;
}
.hero-text .lead { font-size: 1.05rem; max-width: 60ch; color: #F1ECFB; margin: 0; }

@media (max-width: 640px) {
  .hero { background: var(--ink); }
  .hero-img { opacity: 0.35; max-height: 320px; }
}

/* Section intro */
.section-intro {
  max-width: 900px; margin: 0 auto; padding: 2.6rem 1.3rem 0.4rem;
}
.section-intro h2 { font-size: 1.5rem; margin: 0 0 0.7rem; }
.section-intro p { color: var(--text-soft); margin: 0; }

/* Card grid — distinctive shape treatment:
   thick left accent bar, asymmetric notched corners, overlapping index badge */
.card-grid-section { max-width: 1200px; margin: 0 auto; padding: 1.6rem 1.3rem 2.6rem; }
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}
@media (min-width: 700px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}

.card {
  position: relative;
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-left: 9px solid var(--accent);
  border-radius: 0 22px 0 22px;
  padding: 1.8rem 1.6rem 1.6rem 1.9rem;
  box-shadow: 6px 6px 0 rgba(61, 52, 139, 0.08);
}
.card:nth-child(even) { background: #fff; }
.card-num {
  position: absolute;
  top: -14px; left: -9px;
  background: var(--ink);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  min-width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 0 10px 10px 0;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.12);
}
.card h3 { font-size: 1.18rem; margin: 0.4rem 0 0.7rem; }
.card p { margin: 0; color: var(--text-soft); }

/* Zigzag photo sections */
.zigzag {
  max-width: 1100px; margin: 0 auto; padding: 1.4rem 1.3rem;
  display: grid; gap: 1.4rem; align-items: center;
}
@media (min-width: 780px) {
  .zigzag { grid-template-columns: 1fr 1fr; }
  .zigzag.reverse .zz-media { order: 2; }
}
.zz-media { margin: 0; }
.zz-media img { border-radius: 0 18px 0 18px; border: 1px solid var(--line); }
.zz-text h2 { font-size: 1.3rem; margin: 0 0 0.6rem; }
.zz-text p { margin: 0; color: var(--text-soft); }

/* Checkpoint + FAQ cards (reuse .card shape, wider) */
.checkpoint-card, .faq-card {
  max-width: 900px; margin: 1.6rem auto; padding: 2rem 1.8rem 1.8rem 2.1rem;
}
.checkpoint-card h2, .faq-card h2 { font-size: 1.4rem; margin: 0.4rem 0 0.8rem; }
.checkpoint-card > p { color: var(--text-soft); margin: 0 0 0.9rem; }

.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }
.check-list li {
  position: relative; padding-left: 1.7em; color: var(--text);
}
.check-list li::before {
  content: "\2713";
  position: absolute; left: 0; top: 0;
  color: #fff; background: var(--ink);
  width: 1.2em; height: 1.2em; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75em; font-weight: 800;
}

.faq-item { border-bottom: 1px dashed var(--line); padding: 1rem 0; }
.faq-item:last-child { border-bottom: none; }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  font-family: var(--font-display); font-weight: 600; font-size: 1.02rem;
  color: var(--ink-deep); padding: 0 0 0 1.7em; position: relative;
}
.faq-q::before {
  content: "Q"; position: absolute; left: 0; top: 0;
  color: var(--accent); font-weight: 800;
}
.faq-a {
  margin: 0.6em 0 0; padding-left: 1.7em; position: relative; color: var(--text-soft);
}
.faq-a::before {
  content: "A"; position: absolute; left: 0; top: 0;
  color: var(--ink); font-weight: 800;
}

/* CTA */
.cta-block {
  max-width: 900px; margin: 0 auto; padding: 2.2rem 1.3rem 3rem; text-align: center;
}
.cta-block h2 { font-size: 1.5rem; margin: 0 0 0.6rem; }
.cta-block p { color: var(--text-soft); margin: 0 0 1.4rem; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 0.85em 1.7em; border-radius: 0 14px 0 14px;
  font-weight: 600; text-decoration: none; font-family: var(--font-display);
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--ink-deep); }
.btn-outline { background: none; border: 2px solid var(--ink); color: var(--ink-deep); }
.btn-outline:hover { background: var(--paper-alt); }

/* Footer */
.site-footer {
  background: var(--ink-deep); color: #E9E5FA; padding: 2.2rem 1.3rem 6rem;
  margin-top: 2rem;
}
.site-footer nav ul {
  list-style: none; display: flex; flex-wrap: wrap; gap: 1.2rem;
  margin: 0 0 1.2rem; padding: 0; max-width: 1100px; margin-inline: auto;
}
.site-footer nav a { color: #E9E5FA; text-decoration: none; font-weight: 600; }
.site-footer nav a:hover { color: var(--accent); }
.site-footer address {
  font-style: normal; max-width: 1100px; margin: 0 auto 1rem; line-height: 1.9;
  color: #C9C2EE;
}
.site-footer address a { color: var(--accent); text-decoration: none; }
.site-footer p { max-width: 1100px; margin: 0 auto; color: #9D93C9; font-size: 0.85rem; }

@media (min-width: 860px) {
  .site-footer { padding-bottom: 2.2rem; }
}

/* Mobile sticky CTA bar */
.mobile-cta-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 150;
  display: flex; box-shadow: 0 -2px 10px rgba(0,0,0,0.15);
}
.mobile-cta {
  flex: 1; text-align: center; padding: 0.95em 0.5em;
  font-weight: 700; text-decoration: none; font-family: var(--font-display);
}
.mobile-cta.call { background: var(--ink); color: #fff; }
.mobile-cta.inquiry { background: var(--accent); color: var(--ink-deep); }

@media (min-width: 860px) {
  .mobile-cta-bar { display: none; }
}