/* =============== Footer Logos =============== */

.footer-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 28px;
  margin-top: 72px;
  padding: 28px 0 36px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.footer-logos img {
  display: block;
  width: auto !important;
  height: 68px !important;
  max-width: 180px !important;
  object-fit: contain;
  opacity: 0.9;
}

@media (max-width: 600px) {
  .footer-logos {
    gap: 20px;
    margin-top: 56px;
    padding: 24px 0 32px;
  }

  .footer-logos img {
    height: 44px !important;
    max-width: 130px !important;
  }
}

/* =============== Global =============== */

body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  color: #222;
  background: #fff;
  line-height: 1.7;
}

/* =============== Container =============== */

.container {
  max-width: 1200px;
  margin: 60px auto;
  padding: 0 24px;
}

/* =============== Typography =============== */

h1 {
  text-align: center;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.5px;
  font-size: clamp(28px, 3.2vw, 44px);
  margin-bottom: 12px;
}

.authors {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 400;
  color: #444;
  margin-bottom: 30px;
}

.venue {
  text-align: center;
  margin-top: 0.4rem;
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  font-weight: 500;
  color: #2563eb;
}

/* =============== Links / Buttons =============== */

.links {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 26px 0 56px;
}

/* 버튼 공통 */
.links .btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;

  padding: 10px 16px;
  border-radius: 999px;

  /* horwitz.ai 느낌: 다크 + 부드러운 그라데이션 */
  background: linear-gradient(180deg, #151a23 0%, #0f141d 100%);
  color: #ffffff;

  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;

  border: 1px solid rgba(255, 255, 255, 0.10);

  box-shadow:
    0 10px 28px rgba(15, 20, 29, 0.22),
    0 2px 8px rgba(15, 20, 29, 0.12);

  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease, border-color 0.15s ease;
}

/* 아이콘(이모지) 정렬 */
.links .btn-icon {
  font-size: 1.05rem;
  line-height: 1;
  opacity: 0.95;
}

/* Hover: 살짝 떠오르고 더 또렷 */
.links .btn:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow:
    0 14px 36px rgba(15, 20, 29, 0.28),
    0 4px 12px rgba(15, 20, 29, 0.14);
  opacity: 0.98;
}

/* Active: 눌리는 느낌 */
.links .btn:active {
  transform: translateY(0px);
  box-shadow:
    0 8px 22px rgba(15, 20, 29, 0.20),
    0 2px 8px rgba(15, 20, 29, 0.10);
}

/* 키보드 접근성 */
.links .btn:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 3px rgba(99, 102, 241, 0.35),
    0 12px 30px rgba(15, 20, 29, 0.24);
}

/* =============== Sections =============== */

h2 {
  font-size: 1.85rem;
  font-weight: 600;
  margin-top: 60px;
  margin-bottom: 12px;
  border-bottom: 1px solid #eee;
  padding-bottom: 4px;
}

/* =============== Text =============== */

p {
  font-size: 1rem;
  margin-top: 12px;
  color: #333;
  max-width: 78ch; 
  margin-left: auto;
  margin-right: auto;
}

/* =============== Images =============== */

.figure {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 30px auto;
}

/* =============== Video =============== */

.video-container {
  position: relative;
  width: 100%;
  max-width: 100%; 
  margin: 36px auto 0;
  padding-top: 56.25%;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;

  border-radius: 12px;
  box-shadow: 0 18px 40px rgba(15, 20, 29, 0.18);
}

/* =============== Section Blocks (Abstract / Video) =============== */

.section-block {
  background: #f8fafc;          /* 연한 배경 */
  border: 1px solid #e5e7eb;    /* 은은한 테두리 */
  border-radius: 16px;
  padding: 34px 28px;
  margin-top: 46px;
}

/* 가운데 제목 + underline */
.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
  padding: 0;
  border: none; /* 기존 h2 border-bottom 무력화 */
  position: relative;
}

/* 보라색 짧은 바 (레퍼런스 느낌) */
.section-title::after {
  content: "";
  display: block;
  width: 54px;
  height: 3px;
  background: #2563eb; /* 원하면 색 바꿔도 됨 */
  border-radius: 999px;
  margin: 12px auto 0;
}

.section-block p {
  margin-top: 18px;
  margin-left: auto;
  margin-right: auto;
}

.section-block .video-container {
  max-width: 100%;
  margin-top: 22px;
}