/**
 * intro.css — 박람회 소개 페이지 전용 스타일
 * 【수정 방법】 각 섹션별 주석을 참고하여 수정하세요.
 */

/* ── 페이지 히어로 배경 이미지 ── */
.page-hero {
  background:
    linear-gradient(rgba(8, 8, 32, 0.72), rgba(8, 8, 32, 0.72)),
    url('../images/박람회소개.jpg') center 60% / cover no-repeat;
}
.page-hero::before {
  background: none !important;
}
/* 모바일은 center 유지 */
@media (min-width: 769px) {
  .page-hero {
    background-position: center 60%;
  }
}

/* ── 개최 개요 ── */
.intro-overview-section { background: var(--color-surface); }
.intro-overview-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: var(--space-12);
  align-items: center;
}
.intro-overview-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  color: var(--color-text-dark);
  line-height: 1.35;
  margin: var(--space-4) 0;
  letter-spacing: -0.02em;
}
.intro-overview-title em { color: var(--color-primary); font-style: normal; }
.intro-overview-desc {
  font-size: 0.95rem;
  color: var(--color-text-mid);
  line-height: 1.85;
  margin-bottom: var(--space-4);
}
.intro-overview-desc strong { color: var(--color-primary); font-weight: 700; }

.intro-info-table {
  margin-top: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.intro-info-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  border-bottom: 1px solid var(--color-border);
}
.intro-info-row:last-child { border-bottom: none; }
.intro-info-label {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.7rem 0.9rem;
  display: flex;
  align-items: center;
}
.intro-info-value {
  padding: 0.7rem 1rem;
  font-size: 0.88rem;
  color: var(--color-text-dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* 비주얼 카드 */
.intro-overview-visual {
  position: relative;
  height: 380px;
}
.intro-visual-card {
  position: absolute;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--color-border);
}
.intro-visual-card-main {
  top: 0; left: 0; right: 0;
  padding: var(--space-8);
}
.intro-visual-icon { font-size: 3rem; margin-bottom: var(--space-3); }
.intro-visual-card-main h3 {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.intro-visual-card-main p {
  font-size: 0.85rem;
  color: var(--color-text-mid);
  line-height: 1.5;
}
.intro-visual-venue { font-weight: 700; color: var(--color-text-dark) !important; }
.intro-visual-zones {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: var(--space-4);
}
.intro-visual-zones span {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}
.intro-visual-card-sm {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: var(--space-4) var(--space-5);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-dark);
  bottom: 0;
  animation: introFloat 3s ease-in-out infinite;
}
.intro-visual-card-sm-1 { left: 0;  animation-delay: 0s;   }
.intro-visual-card-sm-2 { right: 0; animation-delay: 1.5s; }
.intro-visual-sm-icon { font-size: 1.4rem; }
@keyframes introFloat {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* ── 참가 대상 ── */
.target-section { background: var(--color-background); }
.target-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.target-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}
.target-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}
.target-icon { font-size: 2.8rem; margin-bottom: var(--space-4); }
.target-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.target-desc {
  font-size: 0.88rem;
  color: var(--color-text-mid);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.target-items { list-style: none; display: flex; flex-direction: column; gap: var(--space-2); }
.target-items li {
  font-size: 0.82rem;
  color: var(--color-text-mid);
  padding-left: 1.2rem;
  position: relative;
}
.target-items li::before { content: '→'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }

/* ── 기대 효과 ── */
.effect-section { background: var(--color-surface); }
.effect-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  max-width: 900px;
  margin-inline: auto;
}
.effect-item {
  display: flex;
  gap: var(--space-5);
  align-items: flex-start;
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}
.effect-item:hover { box-shadow: var(--shadow-md); }
.effect-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-border);
  line-height: 1;
  flex-shrink: 0;
}
.effect-title { font-size: 1rem; font-weight: 800; color: var(--color-primary); margin-bottom: var(--space-2); }
.effect-desc { font-size: 0.88rem; color: var(--color-text-mid); line-height: 1.75; }

/* ── 주최 기관 ── */
.organizer-section { background: var(--color-background); }
.organizer-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-10);
  display: flex;
  align-items: center;
  gap: var(--space-8);
  max-width: 800px;
  margin-inline: auto;
  box-shadow: var(--shadow-md);
}
.organizer-emblem { flex-shrink: 0; }
.organizer-name { font-size: 1.2rem; font-weight: 800; color: var(--color-primary); margin-bottom: var(--space-3); }
.organizer-desc { font-size: 0.88rem; color: var(--color-text-mid); line-height: 1.8; margin-bottom: var(--space-4); }
.organizer-contacts { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.organizer-contact-item {
  display: flex; align-items: center; gap: 0.4rem;
  font-size: 0.85rem; font-weight: 600; color: var(--color-primary); text-decoration: none;
}
.organizer-contact-item:hover { text-decoration: underline; }
.intro-cta-text { font-size: 1.1rem; font-weight: 600; color: var(--color-text-mid); }

/* ── 반응형 ── */
@media (max-width: 900px) {
  .intro-overview-grid { grid-template-columns: 1fr; }
  .intro-overview-visual { display: none; }
  .target-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .effect-list { grid-template-columns: 1fr; }
  .organizer-card { flex-direction: column; text-align: center; padding: var(--space-6); }
  .organizer-contacts { justify-content: center; }
}
@media (max-width: 540px) {
  .intro-info-row { grid-template-columns: 68px 1fr; }
}