/* 상암동배수로시공 — 방송 채널 카드/컨트롤 패널 레이아웃, Gowun Dodum, 차콜·시그널레드·시그널시안 팔레트 */

:root {
  --ink: #14151A;
  --ink-soft: #5C5D68;
  --paper: #EAEBEF;
  --panel: #1F212B;
  --panel-line: #33353F;
  --card-bg: #FFFFFF;
  --card-line: #DBDDE4;
  --accent: #FF2D55;
  --accent2: #22D3EE;
  font-size: 17px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Gowun Dodum", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

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

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 200;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  background: var(--ink);
  color: #fff;
  border-bottom: 2px solid var(--accent2);
}
.header-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.wordmark {
  font-family: "Gowun Dodum", sans-serif;
  font-size: 1.5rem;
  color: #fff;
  text-decoration: none;
}
.main-nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 1.05rem;
}
.main-nav a[aria-current="page"] { color: var(--accent2); }
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
}
.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 1rem 1.25rem;
  background: var(--ink);
}
.mobile-nav a {
  color: #fff;
  display: block;
  padding: 0.6rem 0;
  text-decoration: none;
  border-top: 1px solid rgba(255,255,255,0.15);
}

@media (max-width: 780px) {
  .main-nav { display: none; }
  .hamburger { display: block; }
}

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  max-width: 1140px;
  margin: 0 auto;
  gap: 0;
  background: var(--ink);
}
.hero-media { position: relative; }
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 0 3px rgba(34, 211, 238, 0.35);
  pointer-events: none;
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-copy {
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #fff;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent2);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  margin: 0 0 0.75rem;
}
.eyebrow::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 45, 85, 0.25);
}
.hero-copy h1 {
  font-size: 2.4rem;
  margin: 0 0 1rem;
  color: #fff;
}
.hero-copy .lead {
  font-size: 1.1rem;
  color: #C6C8D2;
}

@media (max-width: 780px) {
  .hero { grid-template-columns: 1fr; }
  .hero-copy { padding: 2rem 1.25rem; }
  .hero-copy h1 { font-size: 1.9rem; }
}

/* ---------- Landmark: broadcast channel cards ---------- */
.landmark-notes {
  max-width: 1140px;
  margin: 3.5rem auto;
  padding: 0 1.25rem;
}
.landmark-notes h2 {
  font-size: 1.7rem;
  text-align: center;
  margin-bottom: 2.5rem;
}
.note-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}
.note-card {
  position: relative;
  background: var(--panel);
  color: #E7E8ED;
  border-radius: 10px;
  padding: 1.5rem 1.5rem 1.75rem;
  border-top: 3px solid var(--accent2);
  box-shadow: 0 10px 22px rgba(20, 21, 26, 0.18);
  overflow: hidden;
}
.note-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.025) 0px,
    rgba(255, 255, 255, 0.025) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
}
.note-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}
.ch-num {
  color: var(--accent2);
  font-weight: bold;
}
.on-air {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
}
.on-air::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 1.6s ease-in-out infinite;
}
@keyframes blink {
  0%, 45%, 100% { opacity: 1; }
  50%, 95% { opacity: 0.25; }
}
.note-card h3 {
  margin: 0 0 0.75rem;
  color: #fff;
  font-size: 1.2rem;
}
.note-card p {
  margin: 0;
  font-size: 1rem;
  color: #B7B9C4;
  position: relative;
}

@media (max-width: 700px) {
  .note-grid { grid-template-columns: 1fr; }
}

/* ---------- Process strip: signal chain ---------- */
.process-strip {
  background: var(--ink);
  color: #fff;
  padding: 3rem 1.25rem;
  border-top: 1px solid var(--panel-line);
  border-bottom: 1px solid var(--panel-line);
}
.process-strip h2 {
  max-width: 1140px;
  margin: 0 auto 1.75rem;
  text-align: center;
  font-size: 1.6rem;
}
.process-strip ol {
  max-width: 780px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.process-strip li {
  counter-increment: step;
  position: relative;
  padding: 0.6rem 0 0.6rem 3rem;
  font-size: 1.05rem;
  border-bottom: 1px dashed var(--panel-line);
}
.process-strip li:last-child { border-bottom: none; }
.process-strip li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 4px;
  background: var(--accent2);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: bold;
}
.process-strip strong { color: var(--accent); }

/* ---------- FAQ ---------- */
.faq {
  max-width: 780px;
  margin: 3.5rem auto;
  padding: 0 1.25rem;
}
.faq h2 {
  text-align: center;
  font-size: 1.7rem;
  margin-bottom: 2rem;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-line);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}
.faq-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--ink);
}
.faq-item p { margin: 0; color: var(--ink-soft); }

/* ---------- CTA ---------- */
.cta-section {
  max-width: 780px;
  margin: 0 auto 3.5rem;
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--panel);
  color: #fff;
  border-radius: 14px;
}
.cta-section h2 { margin: 0 0 0.75rem; font-size: 1.5rem; }
.cta-section p { margin: 0 0 1.5rem; color: #C6C8D2; }
.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  border-radius: 6px;
  text-decoration: none;
  font-size: 1.05rem;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-outline { border: 2px solid var(--accent2); color: var(--accent2); }

/* ---------- Gallery ---------- */
.gallery-strip {
  max-width: 1140px;
  margin: 0 auto 3.5rem;
  padding: 0 1.25rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.gallery-strip figure { margin: 0; }
.gallery-strip figcaption {
  margin-top: 0.5rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
  text-align: center;
}

@media (max-width: 700px) {
  .gallery-strip { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: #ADAFB9;
  padding: 2.5rem 1.25rem 6rem;
  text-align: center;
  font-size: 0.95rem;
}
.site-footer nav ul {
  display: flex;
  gap: 1.25rem;
  justify-content: center;
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  flex-wrap: wrap;
}
.site-footer a { color: #fff; text-decoration: none; }
.site-footer address { font-style: normal; margin-bottom: 1rem; }

/* ---------- Mobile CTA bar ---------- */
.mobile-cta-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
}
.mobile-cta {
  flex: 1;
  text-align: center;
  padding: 0.9rem 0;
  text-decoration: none;
  font-size: 1rem;
  color: #fff;
}
.mobile-cta.call { background: var(--accent); }
.mobile-cta.inquiry { background: var(--panel); }

@media (max-width: 780px) {
  .mobile-cta-bar { display: flex; }
}

/* ---------- 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}