/* =============================
   메인 페이지 A4 레이아웃
   ============================= */
body {
  background-color: #d4d4d4;
  color: #000000;
  line-height: 1.6;
  margin: 0;
  padding: 20px 0;
  font-family: "D2Coding", monospace;
  font-size: 15.2px;
}

/* Three.js ASCII Effect 박스 제거 */
#three-container,
#three-container *,
#three-container pre,
#three-container div {
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.main-container {
  width: 600px;
  min-height: 100vh;
  margin: 0 auto;
  background-color: #d4d4d4;
  padding: 25px 50px 40px 50px;
  box-sizing: border-box;
}

/* 헤더 */
.main-header {
  text-align: center;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid #a8a8a8;
}

.main-header h1 {
  font-size: 2rem;
  margin: 0 0 10px 0;
  color: #000000;
  font-weight: 700;
}

.main-header p {
  font-size: 0.9rem;
  color: #000000;
  margin: 5px 0;
}

/* 소개 섹션 */
.intro-section {
  margin: 10px 0 30px 0;
  padding: 20px;
  background-color: #a8a8a8;
  border-left: 4px solid #0000aa;
  font-size: 0.85rem;
  line-height: 1.8;
  color: #000000;
}

/* 네비게이션 섹션 */
.nav-section {
  margin: 30px 0;
}

.nav-section h2 {
  font-size: 1.3rem;
  color: #0000aa;
  margin: 0 0 15px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid #a8a8a8;
  font-weight: 700;
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nav-link {
  display: block;
  padding: 15px 20px;
  background-color: #d4d4d4;
  border: 2px solid #000000;
  border-left: 5px solid #0000aa;
  color: #000000;
  text-decoration: none;
  transition: all 0.3s ease;
  font-weight: 400;
}

.nav-link:hover {
  background-color: #0000aa;
  color: #ffffff;
  transform: translateX(5px);
  border-left-color: #0000aa;
}

.nav-link::before {
  content: "▶ ";
  margin-right: 8px;
}

/* 텍스트 링크 스타일 */
.text-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 10px;
}

.text-link {
  color: #000000;
  text-decoration: none;
  padding: 2px 0;
  margin: 0;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
  display: inline-block;
  cursor: pointer;
}

.text-link:hover {
  color: #000000;
  text-decoration: none;
  padding-left: 10px;
}

.text-link::before {
  content: "→ ";
  margin-right: 8px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.text-link:hover::before {
  opacity: 1;
}

/* =============================
   게시판 스타일
   ============================= */
h2 {
  font-size: 1.3rem;
  margin-top: 50px;
}

table {
  margin: auto;
  border-collapse: collapse;
  width: 100%;
  background-color: #fff;
  font-size: 0.9rem;
}

th,
td {
  border: 1px solid #000;
  padding: 6px 5px;
}

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.644);
  backdrop-filter: blur(5px) brightness(0.8);
  z-index: 1000;
}

.modal-content {
  color: #000000;
  background: #d4d4d4;
  padding: 30px;
  margin: 5% auto;
  width: 600px;
  max-width: 600px;
  border: none;
  border-radius: 0;
  text-align: left;
  max-height: 80vh;
  overflow-y: auto;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE and Edge */
}

.modal-content::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

@media (max-width: 1080px) {
  .modal {
    padding: 0;
  }

  .modal-content {
    width: 100vw !important;
    height: 100vh !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    padding: 16px !important;
    border-radius: 0 !important;
    margin: 0 !important;
    box-sizing: border-box;
  }
}

#modalImage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 10px;
}

#modalImage img {
  max-width: 80%;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* =============================
   스크롤 배너 텍스트
   ============================= */
@keyframes scrollText {
  0% {
    transform: translateX(0%);
  }
  100% {
    transform: translateX(-50%);
  }
}

#textBanner {
  background-color: #000;
  color: #adff6a;
  overflow: hidden;
}

.text-slide-wrap {
  width: 100%;
  white-space: nowrap;
}

.text-slide-track {
  display: inline-block;
  padding: 7px 0;
  animation: scrollText 50s linear infinite;
}

.text-slide-track span {
  display: inline-block;
  margin: 0 3rem;
  font-size: 0.7rem;
}

/* =============================
   링크 및 버튼
   ============================= */
a {
  color: #000000;
  text-decoration: none;
  cursor: pointer;
}
a:hover {
  color: #000000;
  text-decoration: none;
}

#postPagination button {
  background-color: #d4d4d4;
  color: #000000;
  border: 2px solid #000000;
  padding: 5px 7px;
  margin: 0 5px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
#postPagination button:hover {
  background-color: #0000aa;
  color: #ffffff;
}

#closeButton {
  background-color: #a8a8a8;
  color: #000000;
  padding: 8px 10px;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
  font-weight: normal;
}
#closeButton:hover {
  background-color: #8c8c8c;
  color: #000000;
}

/* =============================
   레트로 박스
   ============================= */
.retro-box {
  max-width: 800px;
  margin: 3rem auto;
  padding: 1.8rem;
  background-color: #313131;
  border: 2px solid #000;
  position: relative;
}
.retro-box::before {
  content: ":)";
  position: absolute;
  top: -14px;
  left: 12px;
  background: #ffffff;
  font-size: 0.8rem;
  padding: 0 4px;
  color: #444;
  border: 2px solid #000000;
}

/* =============================
   페이지네이션
   ============================= */
#pagination {
  margin: 1rem auto;
}
#pagination button {
  margin: 0 5px;
  padding: 4px 10px;
}

/* =============================
   YouTube 영상 박스
   ============================= */
.youtube-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
}
.youtube-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* =============================
   고정 홈 버튼
   ============================= */
.home-button {
  position: fixed;
  top: 15px;
  left: 15px;
  background-color: #808080;
  color: #ffffff;
  padding: 5px 5px;
  font-size: 0.5rem;
  border: 2px solid #ffffff;
  text-decoration: none;
  z-index: 10000;
  box-shadow: 0px 0px 0px #000;
  transition: background-color 0.2s;
}
.home-button:hover {
  background-color: #ffe600;
  color: #000;
  transform: scale(1.05);
}

/* =============================
   PC 전용 스타일
   ============================= */
@media (min-width: 1080px) {
  .modal-content {
    max-width: 900px;
    max-height: 80vh;
  }
}

/* =============================
   모바일 반응형 스타일
   ============================= */
@media (max-width: 768px) {
  body {
    padding: 0;
  }

  .main-container {
    width: 100%;
    padding: 20px 15px;
    box-shadow: none;
  }

  .main-header h1 {
    font-size: 1.5rem;
  }

  .main-header p {
    font-size: 0.8rem;
  }

  .nav-section h2 {
    font-size: 1.1rem;
  }

  .nav-link {
    padding: 12px 15px;
    font-size: 0.9rem;
  }

  .intro-section {
    font-size: 0.8rem;
    padding: 15px;
  }
}

@media (max-width: 1079px) {
  body {
    font-size: 15.2px;
  }
  h2 {
    font-size: 1.5rem;
  }
  table {
    font-size: 1rem;
  }
  .modal-content {
    width: 90%;
    max-width: none;
    font-size: 1rem;
    padding: 16px;
    border-radius: 6px;
    max-height: 92vh;
  }
  #modalTitle {
    font-size: 1.2rem;
  }
  #modalContent {
    font-size: 0.95rem;
  }
  #closeButton {
    padding: 8px 10px;
    font-size: 1rem;
  }
  .text-slide-track span {
    font-size: 1rem;
  }
  .home-button {
    font-size: 0.5rem;
    padding: 3px 5px;
  }
  .youtube-wrap iframe {
    border-radius: 6px;
  }
}