/* ============================================================
   contact.css
   Contact 메뉴 페이지 (contactus_01·contactus_02)
   - reveal animation 확장 (방향·속도·지연 프리셋)
   - main-content / section
   - contactus_01: 로고 슬라이더 + 개별 로고 스케일 보정
   - contactus_02: 약도(Daum map) / 위치 정보 / 교통편 / 탭
   ============================================================ */

:root {
  --reveal-distance: 42px;
  --reveal-duration: 900ms;
  --reveal-ease: cubic-bezier(.22, 1, .36, 1);
}

/* ===== Container override (wider) ===== */
.container {
  max-width: 1800px;
  padding: 0 24px;
}

/* ===== Reveal animation extension (direction / speed / delay) ===== */
.reveal {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition:
    opacity var(--reveal-duration) ease,
    transform var(--reveal-duration) var(--reveal-ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.reveal.inview { opacity: 1; transform: none; }

/* 방향 */
.reveal.from-up    { transform: translateY(var(--reveal-distance)); }
.reveal.from-left  { transform: translateX(calc(var(--reveal-distance) * -1)); }
.reveal.from-right { transform: translateX(var(--reveal-distance)); }

/* 속도 프리셋 */
.reveal.speed-fast { --reveal-duration: 600ms; }
.reveal.speed-base { --reveal-duration: 900ms; }
.reveal.speed-slow { --reveal-duration: 1200ms; }

/* 지연 */
.reveal.delay-1 { --reveal-delay: 160ms; }
.reveal.delay-2 { --reveal-delay: 320ms; }
.reveal.delay-3 { --reveal-delay: 480ms; }
.reveal.delay-4 { --reveal-delay: 640ms; }

/* ===== Layout ===== */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 40px;
}

.section-header {
  border-bottom: 1px solid #e5e7eb;
  padding-bottom: 10px;
  margin-bottom: 40px;
}

.section-header h1 {
  font-size: 2rem;
  color: var(--brand-dark);
  display: inline-block;
}

.section-header span {
  font-size: 1rem;
  color: var(--brand-accent);
  margin-left: .75rem;
}

.section-container { margin-bottom: 80px; }

footer {
  width: 100%;
  max-width: none;
  background: #f1f5f9;
  padding: 40px 0;
  box-sizing: border-box;
}

/* ============================================================
   contactus_01: 로고 슬라이더
   ============================================================ */
.logo-slider {
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  background: white;
  padding: 10px 0;
}

.logo-track {
  display: inline-block;
  white-space: nowrap;
}

.logo-track a {
  text-decoration: none;
  display: inline-block;
}

.logo-track a img { display: block; }

.logo-track img {
  width: 120px;
  margin: 0 30px;
  vertical-align: middle;
  transition: transform 0.3s ease;
}

.logo-slider:hover .logo-track { animation-play-state: paused; }

.logo-track img:hover { transform: scale(1.2); }

.logo-track-1 { animation: scroll-track 60s linear infinite; }
.logo-track-2 { animation: scroll-track 26s linear infinite; }
.logo-track-3 { animation: scroll-track 30s linear infinite; }

@keyframes scroll-track {
  0%   { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

/* === KRIHS 연구기관 로고 호버 보정 === */
.logo-track img[src*="re_logo_01"] {
  transform: scale(1.6);
  transform-origin: center;
}
.logo-track img[src*="re_logo_01"]:hover { transform: scale(1.9); }

/* ===== 정부 / 공공기관 ===== */
.logo-track img[src*="C_logo_01"]  { transform: scale(1.15); }
.logo-track img[src*="C_logo_02"]  { transform: scale(1.18); }
.logo-track img[src*="C_logo_03"]  { transform: scale(1.25); }
.logo-track img[src*="C_logo_04"]  { transform: scale(1.15); }
.logo-track img[src*="C_logo_05"]  { transform: scale(1.20); }
.logo-track img[src*="C_logo_06"]  { transform: scale(1.28); }
.logo-track img[src*="C_logo_07"]  { transform: scale(1.25); }
.logo-track img[src*="C_logo_08"]  { transform: scale(1.15); }
.logo-track img[src*="C_logo_09"]  { transform: scale(1.15); }
.logo-track img[src*="C_logo_10"]  { transform: scale(1.20); }
.logo-track img[src*="C_logo_11"]  { transform: scale(1.17); }
.logo-track img[src*="C_logo_12"]  { transform: scale(1.17); }
.logo-track img[src*="C_logo_13"]  { transform: scale(1.20); }

/* ===== 지방자치단체 ===== */
.logo-track img[src*="Pr_logo_01"] { transform: scale(1.20); }
.logo-track img[src*="Pr_logo_02"] { transform: scale(1.17); }
.logo-track img[src*="Pr_logo_03"] { transform: scale(1.20); }
.logo-track img[src*="Pr_logo_04"] { transform: scale(1.17); }

/* ===== 협회 / 학회 ===== */
.logo-track img[src*="As_logo_01"] { transform: scale(1.18); }
.logo-track img[src*="As_logo_02"] { transform: scale(1.25); }
.logo-track img[src*="As_logo_03"] { transform: scale(1.16); }
.logo-track img[src*="As_logo_04"] { transform: scale(1.18); }
.logo-track img[src*="As_logo_05"] { transform: scale(1.25); }
.logo-track img[src*="As_logo_06"] { transform: scale(1.25); }
.logo-track img[src*="As_logo_07"] { transform: scale(1.18); }
.logo-track img[src*="As_logo_08"] { transform: scale(1.16); }
.logo-track img[src*="As_logo_09"] { transform: scale(1.16); }
.logo-track img[src*="As_logo_10"] { transform: scale(1.16); }

/* ===== 연구기관 ===== */
.logo-track img[src*="re_logo_02"] { transform: scale(1.45); }
.logo-track img[src*="re_logo_03"] { transform: scale(1.40); }
.logo-track img[src*="re_logo_04"] { transform: scale(1.55); }

/* ===== 협력사 ===== */
.logo-track img[src*="pc_logo_01"] { transform: scale(1.17); }
.logo-track img[src*="pc_logo_02"] { transform: scale(1.17); }
.logo-track img[src*="pc_logo_03"] { transform: scale(1.15); }
.logo-track img[src*="pc_logo_04"] { transform: scale(1.20); }
.logo-track img[src*="pc_logo_05"] { transform: scale(1.17); }
.logo-track img[src*="pc_logo_06"] { transform: scale(1.20); }
.logo-track img[src*="pc_logo_07"] { transform: scale(1.17); }

/* ============================================================
   contactus_02: 약도 / 위치 정보 / 교통편 / 탭
   ============================================================ */
.page-title { text-align: center; margin-bottom: 50px; }

.page-title h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 10px;
}

.page-title p {
  font-size: 16px;
  color: #6b7280;
}

.location-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.location-info {
  background: #f9fafb;
  padding: 30px;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
}

.location-info h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--brand-dark);
  margin-bottom: 20px;
  border-bottom: 2px solid var(--brand-accent);
  padding-bottom: 10px;
}

.info-item {
  margin-bottom: 15px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.info-label {
  font-weight: 600;
  color: #374151;
  min-width: 80px;
}

.info-value {
  color: #6b7280;
  line-height: 1.5;
  word-break: keep-all;
  white-space: normal;
}

/* ===== Map ===== */
.map-container {
  background: #f9fafb;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  overflow: hidden;
  width: 640px;
  max-width: 100%;
  margin: 0 auto;
}

.map-header {
  background: var(--brand-dark);
  color: white;
  padding: 15px 20px;
  font-weight: 600;
  width: 100%;
}

.map-content {
  height: 390px;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.substance {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.substance iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.substance img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Daum 약도 외부 UI 숨기기 */
.substance .root_daum_roughmap .wrap_map { height: 100% !important; }

.substance .root_daum_roughmap .wrap_tit,
.substance .root_daum_roughmap .roughmap_maker_label,
.substance .root_daum_roughmap .wrap_info,
.substance .root_daum_roughmap .wrap_roadview,
.substance .root_daum_roughmap .wrap_btn_roadview,
.substance .root_daum_roughmap .wrap_controllers,
.substance .root_daum_roughmap .wrap_route {
  display: none !important;
}

.substance .root_daum_roughmap {
  width: 100% !important;
  height: 100% !important;
  margin: 0 !important;
}

/* ===== Transport ===== */
.transport-section { margin-top: 40px; }

.transport-section h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--brand-dark);
  margin-bottom: 30px;
  text-align: center;
}

.transport-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.transport-card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.transport-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--brand-dark);
  margin-bottom: 15px;
}

.transport-details {
  color: #6b7280;
  line-height: 1.6;
}

.highlight {
  background: #fef3c7;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 500;
}

/* ===== Tabs ===== */
.contact-tabs { margin-top: 8px; }

.tablist {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 8px 0 34px;
  flex-wrap: wrap;
}

.tab-btn {
  appearance: none;
  border: 1px solid #e5e7eb;
  background: #ffffff;
  color: #374151;
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}

.tab-btn:hover { transform: translateY(-1px); }

.tab-btn.is-active {
  background: var(--brand-dark);
  color: #fff;
  border-color: var(--brand-dark);
}

.tab-panel { display: block; }
.tab-panel[hidden] { display: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .hero-title { font-size: 48px; margin-bottom: 56px; }
  .hero-nav { column-gap: 40px; }
}

@media (max-width: 900px) {
  .main-content { padding: 40px 24px; }
  .location-section { grid-template-columns: 1fr; gap: 20px; }
  .location-info { padding: 20px; }
  .section-container { margin-bottom: 64px; }
}

@media (max-width: 768px) {
  .hero-content { padding: 0 16px; }
  .hero-title {
    font-size: clamp(26px, 7vw, 34px);
    line-height: 1.15;
    margin-bottom: 18px;
    letter-spacing: -0.02em;
  }
  .hero-nav {
    flex-wrap: nowrap;
    gap: 12px;
    padding: 0 12px 10px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    white-space: nowrap;
    mask-image: linear-gradient(to right, transparent 0, black 12px, black calc(100% - 12px), transparent 100%);
  }
  .hero-nav::-webkit-scrollbar { display: none; }
  .hero-link {
    width: auto;
    text-align: center;
    font-size: 15px;
    padding: 10px 6px;
  }
  .hero-link::after {
    bottom: -6px;
    height: 2px;
    left: 50%;
    transform: translateX(-50%);
    max-width: 100px;
    width: 100%;
  }
  .main-content { padding: 28px 16px 48px; }
  .section-header h1 { font-size: 1.5rem; }
  .section-header span { font-size: .95rem; }
  .section-container { margin-bottom: 48px; }
  .logo-track img { width: 100px; margin: 0 18px; }
  .map-container {
    width: calc(100% - 32px);
    margin: 0 16px;
    border-radius: 8px;
  }
  .map-header { padding: 12px 16px; font-size: 14px; }
  .map-content { height: 280px; }
}

@media (max-width: 600px) {
  .main-content { padding: 24px 16px 48px; }
  .section-header { margin-bottom: 28px; }
  .section-container { margin-bottom: 40px; }
  .logo-track img { width: 92px; margin: 0 14px; }
  footer { padding: 28px 0; }
  .reveal { --reveal-duration: 750ms; }
  .reveal.speed-slow { --reveal-duration: 950ms; }
}

@media (max-width: 480px) {
  .map-container {
    width: calc(100% - 24px);
    margin: 0 12px;
    border-radius: 6px;
  }
  .map-header { padding: 10px 12px; font-size: 13px; }
  .map-content { height: 220px; }
}

@media (max-width: 420px) {
  .hero-link { font-size: 14px; padding: 8px 4px; }
  .logo-track img { width: 84px; margin: 0 12px; }
}