/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* 색상 변수 */
:root {
  --mainColor: #004080;
  --basic-Font-Color: #222;
}

/* Base */
body {
  font-family: "Noto Sans Korean", "Roboto", sans-serif;
  background: #f5f5f5;
  color: var(--basic-Font-Color);
}

/* Layout Container */
#layout-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
/* Upper Top (회색 안내 바) */
#upper_top {
  background-color: var(--mainColor); /* 배경 색상 */
  color: white;                       /* 글자 색상 */
  font-size: 14px;
  padding: 6px 20px;
  text-align: right;                  /* 오른쪽 정렬 */
}

#top {
  background: #fff;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #ddd;
  flex-wrap: wrap;
}

#top .logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--mainColor);
}

#top .logo svg {
  height: 32px;
}

/* Top Menu */
#top .menu {
  display: flex;
  gap: 20px;
  white-space: nowrap;
}

#top .menu a {
  text-decoration: none;
  color: var(--app-nav-text, #333);
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease;
}

/* 활성화 표시 */
#top .menu a.active {
  background: var(--app-nav-active-bg, rgba(35, 166, 195, 0.18));
  border-color: var(--app-nav-active-border, rgba(35, 166, 195, 0.28));
  color: var(--app-nav-active-text, #102e47);
}

/* Hover 효과 */
#top .menu a:hover {
  background: var(--app-nav-hover-bg, rgba(35, 166, 195, 0.12));
  border-color: var(--app-nav-hover-border, rgba(35, 166, 195, 0.2));
  color: var(--app-nav-hover-text, #12334c);
}

#top .menu a:focus-visible {
  background: var(--app-nav-hover-bg, rgba(35, 166, 195, 0.12));
  border-color: var(--app-nav-hover-border, rgba(35, 166, 195, 0.2));
  color: var(--app-nav-hover-text, #12334c);
  box-shadow: 0 0 0 3px var(--app-nav-focus-ring, rgba(35, 166, 195, 0.28));
  outline: none;
}

/* 햄버거 버튼 */
.menu-toggle {
  display: none;
  font-size: 24px;
  cursor: pointer;
}

/* Content */
#main-content {
  display: flex;
  flex: 1;
}

/* Sidebar */
#left {
  width: 240px;
  background: var(--app-surface-alt, #fff);
  border-right: 1px solid var(--app-divider, #ddd);
  padding: 20px;
}

/* Sidebar 메뉴 */
#left ul {
  list-style: none;
  padding: 0;
}

#left ul li {
  margin-bottom: 10px;
}

#left ul li a {
  text-decoration: none;
  color: var(--app-nav-text, #333);
  padding: 8px 12px;
  display: block;
  border-radius: 14px;
  border: 1px solid transparent;
}

/* Sidebar hover */
#left ul li a:hover {
  background: var(--app-nav-hover-bg, rgba(35, 166, 195, 0.12));
  border-color: var(--app-nav-hover-border, rgba(35, 166, 195, 0.2));
  color: var(--app-nav-hover-text, #12334c);
  font-weight: 700;
}

#left ul li a:focus-visible {
  background: var(--app-nav-hover-bg, rgba(35, 166, 195, 0.12));
  border-color: var(--app-nav-hover-border, rgba(35, 166, 195, 0.2));
  color: var(--app-nav-hover-text, #12334c);
  box-shadow: 0 0 0 3px var(--app-nav-focus-ring, rgba(35, 166, 195, 0.28));
  outline: none;
}

/* Sidebar 활성화 */
#left ul li.on a {
  background: var(--app-nav-active-bg, rgba(35, 166, 195, 0.18));
  border-color: var(--app-nav-active-border, rgba(35, 166, 195, 0.28));
  color: var(--app-nav-active-text, #102e47);
  font-weight: 600;
}

/* Body */
#body {
  flex: 1;
  padding: 40px;
  background: var(--app-bg, #fff);
}

/* 모바일 (1024px 이하) */
@media (max-width: 1024px) {
  /* Content column layout */
  #main-content {
    flex-direction: column;
  }

  #body {
    padding: 28px 24px 40px;
  }

  /* Left 메뉴 숨김 */
  #left {
    display: none;
  }

  /* 햄버거 버튼 표시 */
  .menu-toggle {
    display: block;
  }

  /* 모바일 토글 메뉴 */
  #left.mobile-top {
    display: block;
    position: absolute;
    top: 40px; /* 헤더 아래 */
    left: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #ddd;
    z-index: 999;
  }

  #left.mobile-top ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }

  #left.mobile-top ul li {
    margin: 0;
  }

  #left.mobile-top ul li a {
    padding: 12px 16px;
    white-space: nowrap;
  }
}

/* 데스크탑 (1025px 이상) */
@media (min-width: 1025px) {
  #left {
    display: block;
  }

  .menu-toggle {
    display: none;
  }
}

/* 모바일 카드 스타일 */
.mobile-view {
  display: none;
}

.mobile-view .card-item {
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 12px;
  margin-bottom: 10px;
  background: #fff;
}

.mobile-view .card-item a {
  font-weight: bold;
  text-decoration: none;
  color: #23A6C3; /* 모바일 카드 제목 색상 */
}

.mobile-view .meta {
  margin-top: 6px;
  font-size: 14px;
  color: #555;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 반응형 표시제어 */
@media (max-width: 800px) {
  .desktop-view {
    display: none !important;
  }
  .mobile-view {
    display: block !important;
  } 
  .hamburger-btn {
    display: block !important;
  }
  .table tbody td {
    font-size: 0.9rem;
  }  
}

/* 반응형 표시제어 */
@media (max-width: 500px) {
  .desktop-view {
    display: none !important;
  }
  .mobile-view {
    display: block !important;
  }
  .menu {
    display: none !important;
  }
  .hamburger-btn {
    display: block !important;
  }

  #body {
    padding: 20px 16px 32px;
  }
}

.footer-signature {
  font-size: 14px;
  color: #666;
  text-align: center;
  padding: 20px 0;
  background: #f9f9f9;
}

.footer-signature .brand {
  font-weight: 600;
  color: #004080; /* 브랜드 색상 */
}

.footer-signature .with {
  color: #007acc; /* 파란색 강조 */
}

.footer-signature .by {
  color: #007acc; /* 파란색 강조 */
}

.footer-signature .lsw {
  color: #23A6C3; /* 파란색 강조 */
}

.footer-signature span {
  margin: 0 2px;
}

.delete-layer {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    background: #ffffff;
    border: 1px solid #ccc;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    padding: 20px;
    border-radius: 10px;
    z-index: 9999;
    display: none;
}


.layer-content p {
    font-weight: 500;
    margin-bottom: 10px;
}

.layer-content input {
    width: 100%;
    padding: 8px;
}

.layer-content .btn {
    min-width: 60px;
}

/* 모바일 left 메뉴 안 햄버거 버튼 */
.hamburger-btn {
  display: none;
  position: fixed;
  top: 20px;
  left: 10px;
  background: none;
  border: none;
  font-size: 26px;
  z-index: 1100;
  cursor: pointer;
}

.custom-alert {
    display: inline-flex;
    align-items: center;
    padding: 10px 14px;
    border-radius: 20px;
    color: #fff;
    font-size: 0.9rem;
    margin-bottom: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    font-weight: 500;
}

.custom-alert-success {
    background-color: #28a745;
}

.custom-alert-danger {
    background-color: #dc3545;
}

.custom-alert-warning {
    background-color: #ffc107;
    color: #333;
}

.custom-alert-close {
    background: none;
    border: none;
    color: #fff;
    font-weight: bold;
    font-size: 1.2rem;
    line-height: 1;
    margin-left: 8px;
    cursor: pointer;
}

/* 기본: 최대 100% (모바일) */
.file-name {
  max-width: 100%;
  word-break: break-all;
}

/* 화면이 500px 이하일 때 */
@media (max-width: 400px) {
  .file-name {
    max-width: 200px;
  }
}

/* 화면이 500px 이하일 때 */
@media (max-width: 450px) and (min-width: 401px) {
  .file-name {
    max-width: 220px;
  }
}


/* 화면이 500px 이하일 때 */
@media (max-width: 550px) and (min-width: 451px) {
  .file-name {
    max-width: 250px;
  }
}

/* 화면이 800px 이하일 때 */
@media (max-width: 800px) and (min-width: 551px) {
  .file-name {
    max-width: 300px;
  }
}

/* 화면이 801px 이상일 때 */
@media (min-width: 801px) {
  .file-name {
    max-width: 1000px;
  }
}

.file-name.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 게시판 제목 링크 공통 스타일 */
.board-wrapper a.title-link {
  display: inline-block;
  font-weight: 600;
  color: var(--app-link, #23A6C3); /* 기본 파란색 */
  text-decoration: none;
  word-break: break-all;
  transition: color 0.2s ease, text-decoration 0.2s ease;
}

.board-wrapper a.title-link:hover {
  color: color-mix(in srgb, var(--app-link, #0056b3) 80%, #000); /* 호버 시 더 진한 파랑 */
  text-decoration: underline;
}

.post-header h3 {
  font-size: 1.75rem;
}

.post-meta span {
  display: inline-block;
  margin-right: 0.5rem;
}

.post-meta i {
  margin-right: 0.2rem;
}

.board-content {
  white-space: normal;
  line-height: 1.7;
  color: var(--app-text, #222);
}

.board-section-title {
  border-bottom: 1px solid var(--app-divider, #ddd);
  padding-bottom: 0.5rem;
}

.board-section-title h2 {
  color: var(--app-text-muted, #6c757d); /* Bootstrap text-muted 색상 */
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0;
}

.post-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0;
}

.post-header h1,
.post-header h3,
.post-meta,
.post-meta span {
  color: var(--app-text, #222);
}

.post-meta {
  font-size: 0.9rem;
}

/* 테이블 헤더 */
.table thead th {
  background-color: var(--app-table-head-bg, #f8f9fa);  /* 연회색 배경 */
  font-weight: 600;           /* 약간 두껍게 */
  color: var(--app-table-text, #333);                /* 진한 색 */
  vertical-align: middle;
  font-size: 0.95rem;
  border-bottom: 2px solid var(--app-table-border, #dee2e6);
  text-align: center;
}

/* 테이블 행 */
.table tbody tr {
  transition: background-color 0.2s;
}

/* 행 hover 효과 */
.table tbody tr:hover {
  background-color: color-mix(in srgb, var(--app-table-bg, #f1f3f5) 75%, var(--app-table-head-bg, #f1f3f5));
}

/* 셀 */
.table tbody td {
  vertical-align: middle;
  font-size: 0.93rem;
  color: var(--app-table-text, #555);
  padding: 0.5rem 0.25rem;
  text-align: center;
}

.table tbody td:nth-child(2) {
  text-align: left;
}

/* 제목 링크 */
.table .title-link {
  font-weight: 600;
  color: var(--app-link, #0d6efd);
  text-decoration: none;
}

.table .title-link:hover {
  text-decoration: underline;
}

.thumbnail-fixed {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* 이미지 컨테이너 */
.attachment-image-container {
  position: relative;
  display: inline-block;
  width: 100%;
  cursor: pointer;
}

/* 반응형 이미지 */
.attachment-image-container img {
  width: 100%;
  height: auto;
  border-radius: .25rem;
  transition: transform 0.3s ease;
}

/* 마우스 오버 시 약간 확대 */
.attachment-image-container:hover img {
  transform: scale(1.02);
}

/* 라이트박스 오버레이 */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  cursor: zoom-out;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
}

/* 활성화 시 표시 */
.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* 라이트박스 이미지 */
.lightbox-overlay img {
  max-width: 90%;
  max-height: 90%;
  border-radius: .25rem;
  box-shadow: 0 0 20px rgba(0,0,0,0.6);
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #003366;
    color: white;
    font-size: 14px;
    padding: 6px 20px;
}

.top-bar-left {
    font-weight: 500;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.welcome-text {
    font-weight: bold;
    color: #00d4ff;
}

.logout-link {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
}

.logout-link:hover {
    text-decoration: underline;
    color: #ffcc00;
}

.divider {
    color: #ccc;
}
#left ul li a {
  color: var(--app-nav-text, #333);
}

#left ul li.on a,
#left ul li a:hover {
  color: var(--app-nav-active-text, #102e47);
}