:root {
  --bg: #f4f7fb;
  --paper: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --point: #2563eb;
  --point-dark: #1d4ed8;
  --soft: #eff6ff;
  --danger: #dc2626;
  --ok: #059669;
  --radius: 18px;
  --shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--point); }

.site-header {
  background: linear-gradient(135deg, #111827, #1e3a8a);
  color: #fff;
  padding: 42px 18px 34px;
}

.header-inner,
.container {
  width: min(1080px, calc(100% - 36px));
  margin: 0 auto;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.04em;
  font-size: 24px;
}

.logo-badge {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: #fff;
  color: #1e3a8a;
  font-weight: 900;
}

.hero-title {
  margin: 26px 0 8px;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.18;
  letter-spacing: -0.055em;
}

.hero-desc {
  max-width: 720px;
  margin: 0;
  color: rgba(255,255,255,0.82);
  font-size: 17px;
}

.nav {
  margin-top: 24px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav a,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 999px;
  padding: 11px 18px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s ease, opacity .15s ease, background .15s ease;
}

.nav a {
  background: rgba(255,255,255,0.12);
  color: #fff;
}

.nav a:hover { color: #fff; background: rgba(255,255,255,0.2); }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--point); color: #fff; }
.btn-primary:hover { background: var(--point-dark); color: #fff; }
.btn-light { background: #fff; color: #1f2937; border: 1px solid var(--line); }
.btn-danger { background: var(--danger); color: #fff; }

.container { padding: 34px 0 60px; }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.section-title {
  margin: 0 0 16px;
  font-size: 26px;
  letter-spacing: -0.04em;
}

.board-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.board-list {
  overflow: hidden;
}

.board-row {
  display: grid;
  grid-template-columns: 80px 1fr 130px;
  gap: 16px;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.board-row:last-child { border-bottom: 0; }
.board-no { color: var(--muted); font-weight: 700; }
.board-title { font-weight: 800; letter-spacing: -0.025em; }
.board-date { color: var(--muted); font-size: 14px; text-align: right; }

.post-wrap {
  padding: 30px;
}

.post-title {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
  letter-spacing: -0.055em;
}

.post-meta {
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
  margin-bottom: 26px;
}

.post-content p { margin: 0 0 18px; }
.post-content h2 { margin: 34px 0 12px; font-size: 24px; letter-spacing: -0.04em; }
.post-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 22px auto;
  border-radius: 14px;
  border: 1px solid var(--line);
}
.post-content figure { margin: 24px 0; }
.post-content figcaption { display: none; }

.notice-box {
  background: var(--soft);
  border: 1px solid #bfdbfe;
  border-radius: 16px;
  padding: 18px;
  color: #1e3a8a;
  margin: 22px 0;
}

.admin-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
}

.admin-card {
  width: min(720px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 28px;
}

.admin-card.wide { width: min(860px, 100%); }
.admin-card h1 { margin: 0 0 10px; letter-spacing: -0.05em; }
.admin-card p { color: var(--muted); margin: 0 0 22px; }

.form-row { margin: 18px 0; }
.label {
  display: block;
  margin-bottom: 8px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.input,
.textarea,
.editor {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 15px;
  font: inherit;
  background: #fff;
  outline: none;
}

.input:focus,
.textarea:focus,
.editor:focus {
  border-color: var(--point);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
}

.editor {
  display: block;
  width: 100%;
  min-height: 600px !important;
  height: 600px !important;
  max-height: 600px !important;
  overflow-y: scroll !important;
  overflow-x: auto;
  scrollbar-gutter: stable both-edges;
  overscroll-behavior: contain;
  word-break: break-word;
  white-space: normal;
}

.editor:empty:before {
  content: attr(data-placeholder);
  color: #9ca3af;
}

.editor img {
  max-width: calc(100% - 18px);
  height: auto;
  display: block;
  margin: 16px auto;
  border-radius: 14px;
}

.editor a { color: var(--point); text-decoration: underline; }
.editor img.selected-editor-image {
  outline: 4px solid rgba(37, 99, 235, .45);
  outline-offset: 4px;
}


.editor-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 10px 0;
}

.status {
  min-height: 24px;
  font-size: 14px;
  color: var(--muted);
  margin-top: 12px;
}
.status.ok { color: var(--ok); }
.status.err { color: var(--danger); }

.modal-backdrop {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, .58);
  z-index: 50;
  padding: 20px;
}
.modal-backdrop.active { display: flex; }

.modal {
  width: min(560px, 100%);
  background: #fff;
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 24px 80px rgba(15, 23, 42, .3);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}
.modal h2 { margin: 0; letter-spacing: -0.04em; }

.drop-zone {
  border: 2px dashed #93c5fd;
  background: #eff6ff;
  border-radius: 18px;
  padding: 34px 22px;
  text-align: center;
  color: #1e3a8a;
  transition: background .15s ease, border-color .15s ease;
}
.drop-zone.dragover {
  background: #dbeafe;
  border-color: var(--point);
}

.drop-zone strong { display: block; font-size: 18px; margin-bottom: 6px; }
.drop-zone input { display: none; }

.preview-list { margin-top: 16px; display: grid; gap: 10px; }
.preview-item {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px;
}
.preview-item img { width: 68px; height: 54px; object-fit: cover; border-radius: 10px; }
.preview-item span { font-size: 14px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.footer {
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  padding: 32px 18px 42px;
}

@media (max-width: 720px) {
  .board-row { grid-template-columns: 1fr; gap: 6px; }
  .board-date { text-align: left; }
  .board-toolbar { align-items: flex-start; flex-direction: column; }
  .post-wrap { padding: 22px; }
}


.board-search {
  display: flex;
  width: min(360px, 100%);
  margin: 0 0 20px;
}

.board-search input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--line);
  border-right: 0;
  border-radius: 12px 0 0 12px;
  padding: 12px 14px;
  font: inherit;
  outline: none;
  background: #fff;
}

.board-search input:focus {
  border-color: var(--point);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, .10);
}

.search-btn {
  border: 0;
  border-radius: 0 12px 12px 0;
  background: var(--point);
  color: #fff;
  min-width: 58px;
  padding: 0 18px;
  font-weight: 900;
  cursor: pointer;
}
.search-btn:hover { background: var(--point-dark); }

.board-empty {
  display: none;
  padding: 28px 18px;
  text-align: center;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}
.board-empty.active { display: block; }

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin: 28px 0 0;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
}
.page-btn:hover { border-color: var(--point); color: var(--point); }
.page-btn.active {
  background: #111827;
  color: #fff;
  border-color: #111827;
}
.page-btn:disabled {
  opacity: .35;
  cursor: not-allowed;
}

.image-figure { margin: 18px 0; }
.editor figure { margin: 18px 0; }
.editor figcaption { display: none; }

.toast {
  position: fixed;
  left: 50%;
  top: 38px;
  transform: translate(-50%, -20px);
  background: #111827;
  color: #fff;
  border-radius: 999px;
  padding: 13px 22px;
  font-weight: 800;
  box-shadow: 0 18px 50px rgba(15, 23, 42, .28);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  z-index: 100;
}
.toast.active {
  opacity: 1;
  transform: translate(-50%, 0);
}

button:disabled,
.btn:disabled {
  opacity: .65;
  cursor: not-allowed;
}


/* Editor scroll safety: keep long text/images inside the editor box. */
.admin-card.wide #editor.editor {
  height: 600px !important;
  min-height: 600px !important;
  max-height: 600px !important;
  overflow-y: scroll !important;
  overflow-x: auto;
}
.admin-card.wide #editor.editor > *:first-child { margin-top: 0; }
.admin-card.wide #editor.editor > *:last-child { margin-bottom: 0; }