:root {
  --bg: #E9DFCF; --card: #F6EFE3; --ink: #4B3A2A; --muted: #9A8670; --line: #D9CAB3;
  --chip: #ECE1CF; --accent: #8B5E3C; --on-accent: #F6EFE3; --dash: #CDBBA0; --tag: #5F6F8C;
  --danger: #B3452C;
  --serif: "Nanum Myeongjo", Georgia, serif;
  --ig: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", Roboto, "Noto Sans KR", sans-serif;
  --line-w: 358px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1F1A15; --card: #2A231C; --ink: #EDE3D3; --muted: #A8977F; --line: #4A3E31;
    --chip: #362D24; --accent: #C99A6E; --on-accent: #1F1A15; --dash: #5C4D3C; --tag: #9FB0CF;
    --danger: #E07A5F;
  }
}
:root[data-theme="dark"] {
  --bg: #1F1A15; --card: #2A231C; --ink: #EDE3D3; --muted: #A8977F; --line: #4A3E31;
  --chip: #362D24; --accent: #C99A6E; --on-accent: #1F1A15; --dash: #5C4D3C; --tag: #9FB0CF;
  --danger: #E07A5F;
}

* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; background: var(--bg); color: var(--ink);
  font-family: "Pretendard", "Malgun Gothic", system-ui, sans-serif;
  display: flex; justify-content: center; padding: 24px 16px 48px;
}
main { width: 100%; max-width: 560px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; align-content: start; }
header { text-align: center; }
h1 { margin: 0; font-family: var(--serif); font-size: 26px; font-weight: 800; color: var(--accent); letter-spacing: -0.5px; }
.tagline { margin: 2px 0 0; font-family: var(--serif); font-size: 13px; font-weight: 700; color: var(--ink); letter-spacing: 1px; }
.sub { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.sub span, footer span { display: block; white-space: nowrap; }
.card { background: var(--card); border-radius: 10px; padding: 16px; border: 1px dashed var(--dash); box-shadow: 0 2px 0 var(--line); }
h2 { margin: 0 0 12px; font-family: var(--serif); font-size: 16px; font-weight: 700; }
button { font: inherit; cursor: pointer; }

/* 작성 칸 */
textarea {
  /* 안쪽 글자 폭 = 인스타 한 줄 폭 */
  display: block; margin: 0 auto; width: calc(var(--line-w) + 30px); max-width: 100%;
  min-height: 240px; resize: vertical; font-family: var(--ig); font-size: 14px; line-height: 18px;
  padding: 14px; border: 1px solid var(--line); border-radius: 8px; outline: none;
  background: var(--card); color: var(--ink);
}
textarea:focus { border-color: var(--accent); }
.meta { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 10px 2px; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.meta .over { color: var(--danger); font-weight: 700; }
.saved { margin-left: auto; }
.actions { display: flex; gap: 10px; }
.actions button { border: 0; border-radius: 8px; padding: 14px; font-weight: 700; }
.ghost { background: var(--chip); color: var(--ink); flex: 0 0 76px; }
.primary { flex: 1; color: var(--on-accent); background: var(--accent); font-size: 16px; }
.primary:active, .ghost:active { transform: scale(.98); }

.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.align { display: flex; background: var(--chip); border-radius: 8px; padding: 3px; }
.align button {
  display: flex; align-items: center; gap: 4px; border: 0; background: transparent; color: var(--muted);
  border-radius: 6px; padding: 6px 10px; font-size: 13px;
}
.align button, .lib-list button, .actions button { white-space: nowrap; }
.align button svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.align button.on { background: var(--card); color: var(--accent); font-weight: 700; box-shadow: 0 1px 2px rgba(75,58,42,.15); }
.line-info { margin-left: auto; font-size: 12px; color: var(--muted); }

/* 선택판 */

.picker-tabs { display: flex; gap: 6px; margin-bottom: 10px; }
.picker-tabs button {
  flex: 1; border: 0; border-radius: 8px; padding: 10px 4px; background: var(--chip); color: var(--muted);
  font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.picker-tabs button.on { background: var(--ink); color: var(--card); font-weight: 700; }
#search {
  width: 100%; font: inherit; font-size: 15px; padding: 10px 14px; margin-bottom: 8px;
  border: 1px solid var(--line); border-radius: 8px; outline: none; background: transparent; color: var(--ink);
}
#search:focus { border-color: var(--accent); }
#search[hidden] { display: none; }
.cats { display: flex; flex-wrap: wrap; gap: 6px; padding-bottom: 10px; }
.cats:empty { display: none; }
.cats button {
  flex: 0 0 auto; border: 1px solid var(--line); background: transparent; color: var(--ink);
  border-radius: 99px; padding: 6px 12px; font-size: 13px;
}
.cats button.on { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.grid {
  height: 260px; overflow-y: auto; display: grid; gap: 4px; align-content: start;
  grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
}
.grid.wide { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
.grid button {
  border: 0; background: transparent; color: var(--ink); border-radius: 10px;
  height: 44px; font-size: 26px; line-height: 1; padding: 0;
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", sans-serif;
}
.grid.sym button { font-size: 20px; font-family: inherit; }
.grid.wide button { font-size: 15px; font-family: inherit; background: var(--chip); padding: 0 8px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.grid button:hover { background: var(--chip); }
.grid button:active { transform: scale(.9); }
.grid .note { grid-column: 1 / -1; color: var(--muted); font-size: 14px; text-align: center; padding: 24px 0; }

/* 미리보기 */
.post { border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; }
.post-head { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-bottom: 8px; }
.avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--accent); }
.post-text {
  width: var(--line-w); max-width: 100%; margin: 0 auto;
  white-space: pre-wrap; word-break: break-word; font-family: var(--ig); font-size: 14px; line-height: 18px;
}
.post-text .who { font-weight: 600; }
.preview-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.preview-top h2 { margin: 0; }
.user { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.user input {
  width: 130px; font: inherit; color: var(--ink); padding: 6px 10px;
  border: 1px solid var(--line); border-radius: 8px; background: transparent; outline: none;
}
.user input:focus { border-color: var(--accent); }
.post-text .tag { color: var(--tag); }
.post-text .empty { color: var(--muted); }

footer { text-align: center; font-size: 12px; line-height: 1.6; color: var(--muted); }

.toast {
  position: fixed; left: 50%; bottom: 32px; transform: translate(-50%, 20px); opacity: 0;
  background: var(--accent); color: var(--on-accent); padding: 12px 20px; border-radius: 99px; font-size: 14px;
  transition: .25s; pointer-events: none; z-index: 20; text-align: center;
  width: max-content; max-width: calc(100vw - 32px); /* 화면 절반 폭에 갇혀 두 줄 되던 것 방지 */
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 폰: 작성 칸과 미리보기를 화면 끝까지 넓혀 인스타와 같은 폭으로 */
@media (max-width: 480px) {
  .editor, .preview { margin: 0 -16px; border-radius: 0; border-left: 0; border-right: 0; }
  .editor { padding: 12px 0; }
  .editor .toolbar, .editor .meta, .editor .actions { padding: 0 16px; }
  textarea { width: calc(var(--line-w) + 32px); padding: 12px 16px; border-left: 0; border-right: 0; border-radius: 0; }
  .preview { padding: 16px; }
  .post { border: 0; padding: 0; }
}

@media (max-width: 420px) {
  /* 좁은 폰에서도 문구가 한 줄씩 들어가게 */
  .sub { font-size: min(14px, 3.8vw); }
  footer { font-size: min(12px, 3.3vw); }
  .toolbar { gap: 6px; flex-wrap: nowrap; }
  .align button { padding: 6px 7px; gap: 3px; }
  .line-info { white-space: nowrap; }
  .meta { gap: 4px 10px; font-size: 12px; flex-wrap: nowrap; white-space: nowrap; }
  .preview-top { flex-wrap: nowrap; }
  .preview-top h2, .user { white-space: nowrap; }
  .user input { width: 110px; }
  .picker-tabs button { font-size: 13px; }
  .grid { height: 220px; }
}

@media (max-width: 340px) {
  .align button svg { display: none; }
}

/* 저장한 글 */
.library summary { list-style: none; cursor: pointer; display: flex; align-items: center; }
.library summary::-webkit-details-marker { display: none; }
.library summary h2 { margin: 0; flex: 1; }
.library summary::after { content: '▾'; color: var(--muted); transition: transform .2s; }
.library[open] summary::after { transform: rotate(180deg); }
.count { display: inline-block; min-width: 22px; padding: 1px 7px; margin-left: 4px; border-radius: 99px; background: var(--chip); color: var(--accent); font-family: inherit; font-size: 12px; text-align: center; }
.lib-list { list-style: none; margin: 12px 0 0; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; max-height: 360px; overflow-y: auto; }
.lib-list li { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); }
.lib-list .info { flex: 1; min-width: 0; }
.lib-list .title { display: block; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lib-list .sub2 { display: block; font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lib-list button { border: 0; border-radius: 6px; padding: 6px 10px; font-size: 13px; background: var(--chip); color: var(--ink); flex: 0 0 auto; }
.lib-list button.load { background: var(--accent); color: var(--on-accent); }
.lib-list .empty-note { justify-content: center; color: var(--muted); font-size: 13px; border-style: dashed; }

/* 확인창 */
.dialog { position: fixed; inset: 0; z-index: 30; display: grid; place-items: center; padding: 16px; background: rgba(40, 30, 20, .45); }
.dialog[hidden] { display: none; }
.dialog-box { width: 100%; max-width: 320px; background: var(--card); border: 1px dashed var(--dash); border-radius: 10px; padding: 20px 18px 16px; box-shadow: 0 8px 30px rgba(0,0,0,.2); }
.dialog-box p { margin: 0 0 18px; white-space: pre-line; line-height: 1.5; font-size: 15px; text-align: center; word-break: keep-all; overflow-wrap: anywhere; }
.dialog-actions { display: flex; gap: 8px; }
.dialog-actions button { flex: 1; border: 0; border-radius: 8px; padding: 12px; font-weight: 700; }
.dialog-actions .primary.danger { background: var(--danger); color: #fff; }

/* 광고 자리 (승인 전에는 hidden) */
.ad-slot { display: grid; justify-items: center; gap: 4px; min-height: 100px; }
.ad-slot[hidden] { display: none; }
.ad-label { font-size: 11px; color: var(--muted); }

/* 하단 링크 */
footer .links { margin-top: 6px; }
footer a, .doc-nav a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }

/* 사용법·개인정보처리방침 문서 페이지 */
.doc h1 a { color: inherit; text-decoration: none; }
.doc .card h2 { margin-bottom: 10px; }
.doc h3 { margin: 16px 0 4px; font-size: 15px; }
.doc p, .doc li { font-size: 15px; line-height: 1.75; margin: 0 0 8px; word-break: keep-all; overflow-wrap: anywhere; }
.doc ol, .doc ul { margin: 0 0 8px; padding-left: 20px; }
.doc code { font-family: inherit; background: var(--chip); padding: 1px 5px; border-radius: 4px; }
.doc-nav { text-align: center; font-size: 14px; }