/* 공통 스타일 — 목업에서 추출. 전 페이지가 공유합니다.
   색상은 :root 의 CSS 변수로 맞춰주세요. 개별 페이지에서 색을 직접 쓰지 마세요. */

:root{
  --paper:#ffffff;
  --wash:#F1F4F2;
  --ink:#16211E;
  --muted:#5F6E6A;
  --rule:#DDE3E0;
  --chalk:#2C5E52;
  --chalk-soft:#E6EFEB;
  --mark:#9E3B22;
  --sans:'Pretendard Variable',Pretendard,-apple-system,'Malgun Gothic','맑은 고딕',sans-serif;
  --serif:'Gowun Batang',serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--wash);color:var(--ink);font-size:15px;line-height:1.6;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--chalk);outline-offset:2px}

/* ---------- 뼈대 ---------- */
.shell{display:grid;grid-template-columns:236px 1fr;min-height:100vh}
/* 사이드바는 본문 길이와 상관없이 화면 높이에 붙어 있습니다.
   align-self:start 가 없으면 grid 가 본문 높이만큼 늘여버려서
   맨 아래 whoami(이름·로그아웃)가 스크롤을 내려야 보입니다. */
.rail{background:var(--ink);color:#CBD6D1;padding:22px 0 24px;display:flex;flex-direction:column;position:sticky;top:0;align-self:start;height:100vh;overflow:hidden}
.wordmark{display:block;font-family:var(--serif);font-size:23px;color:#fff;padding:0 22px 20px;line-height:1.25}
.wordmark span{display:block;font-family:var(--sans);font-size:11.5px;font-weight:500;color:#7E918B;letter-spacing:.02em;margin-top:5px}
.rail nav{padding:0 12px;flex:1;min-height:0;overflow-y:auto}
.rail h4{font-size:11.5px;font-weight:600;color:#728480;padding:16px 10px 7px}
.navlink{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:5px;font-size:14px;color:#CBD6D1;cursor:pointer;width:100%;background:none;border:0;text-align:left}
.navlink:hover{background:#22302C;color:#fff}
.navlink[aria-current="true"]{background:var(--chalk);color:#fff;font-weight:600}
.navlink .cnt{margin-left:auto;font-size:12px;color:#8FA39D;font-variant-numeric:tabular-nums}
.navlink[aria-current="true"] .cnt{color:#C9E0D8}
.whoami{margin-top:auto;padding:16px 22px 0;border-top:1px solid #26332F;margin-left:12px;margin-right:12px}
.whoami b{display:block;color:#fff;font-size:14px}
.whoami small{color:#7E918B;font-size:12px}
.whoami a{display:inline-block;margin-top:10px;border:1px solid #34423E;color:#9FB1AB;padding:5px 11px;border-radius:5px;font-size:12.5px}
.whoami a:hover{border-color:#4C5D58;color:#fff}
.stage{padding:30px 38px 80px;max-width:1020px}

/* ---------- 공통 ---------- */
.crumb{font-size:12.5px;color:var(--muted);margin-bottom:8px}
.crumb a:hover{color:var(--chalk);text-decoration:underline;text-underline-offset:3px}
h1{font-size:24px;font-weight:700;letter-spacing:-.025em}
h2{font-size:17px;font-weight:700;letter-spacing:-.02em}
.lede{color:var(--muted);font-size:14px;margin-top:5px}
.head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:20px}

.btn{display:inline-block;border:1px solid var(--chalk);background:var(--chalk);color:#fff;padding:8px 17px;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;text-align:center}
.btn:hover{background:#244E44}
.btn.ghost{background:var(--paper);color:var(--chalk)}
.btn.ghost:hover{background:var(--chalk-soft)}
.btn.quiet{background:var(--paper);border-color:var(--rule);color:var(--muted);font-weight:500}
.btn.quiet:hover{border-color:#B9C4C0;color:var(--ink)}
.btn.sm{padding:5px 11px;font-size:13px}

.panel{background:var(--paper);border:1px solid var(--rule);border-radius:9px}
.panel + .panel{margin-top:18px}
.pad{padding:22px 24px}

.tag{display:inline-block;font-size:11.5px;font-weight:600;padding:1.5px 7px;border-radius:4px;border:1px solid var(--rule);color:var(--muted);vertical-align:1.5px}
.tag.notice{background:var(--mark);border-color:var(--mark);color:#fff}
.tag.answer{background:var(--chalk-soft);border-color:#BFD6CD;color:var(--chalk)}
.tag.open{border-color:#C9A227;color:#8A6D08}
.tag.type-staff{background:var(--mark);border-color:var(--mark);color:#fff}
.tag.type-mentor{background:var(--chalk-soft);border-color:#BFD6CD;color:var(--chalk)}
.tag.type-teacher{background:#E7EDF9;border-color:#C3D2EC;color:#2F4F8F}
.tag.type-student{background:var(--wash);border-color:var(--rule);color:var(--muted)}

/* ---------- 목록 ---------- */
.filters{display:flex;gap:8px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.search{display:flex;flex:1;min-width:220px;max-width:340px;border:1px solid var(--rule);border-radius:6px;background:var(--paper);overflow:hidden}
.search input{border:0;padding:8px 12px;flex:1;background:none}
.search input:focus{outline:none}
.search button{border:0;border-left:1px solid var(--rule);background:var(--paper);padding:0 13px;cursor:pointer;color:var(--muted);font-size:13px}
.search button:hover{background:var(--wash);color:var(--ink)}
.selectish{border:1px solid var(--rule);border-radius:6px;background:var(--paper);padding:8px 11px;font-size:13.5px;color:var(--muted)}

table.list{width:100%;border-collapse:collapse;background:var(--paper);border:1px solid var(--rule);border-radius:9px;overflow:hidden}
table.list th{font-size:12.5px;font-weight:600;color:var(--muted);text-align:left;padding:11px 14px;border-bottom:1px solid var(--rule);background:#FAFBFA}
table.list td{padding:12px 14px;border-bottom:1px solid #EDF1EF;font-size:14px;vertical-align:top}
table.list tr:last-child td{border-bottom:0}
table.list tr:hover td{background:#FAFBFA}
.col-no{width:56px;color:var(--muted);font-variant-numeric:tabular-nums;font-size:13px}
.col-writer{width:150px;font-size:13.5px;white-space:nowrap}
.col-writer .tag{margin-left:5px;font-size:10.5px;padding:1px 5px;vertical-align:1px}
.col-date{width:92px;color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}
.subject{font-weight:500}
.subject a:hover{color:var(--chalk);text-decoration:underline;text-underline-offset:3px}
.meta-inline{color:var(--muted);font-size:12.5px;font-weight:500;margin-left:5px;font-variant-numeric:tabular-nums}
.reply-mark{color:var(--chalk);margin-right:5px;font-weight:600}
.writer{cursor:pointer;border-bottom:1px dotted #B9C4C0}
.writer:hover{color:var(--chalk);border-color:var(--chalk)}

/* 페이지 번호. Q&A 는 button, 다른 게시판은 a 를 쓰므로 둘 다 같은 모양으로 맞춥니다.
   a 에도 높이를 주려고 inline-flex 로 가운데 정렬합니다. */
.pager{display:flex;justify-content:center;align-items:center;gap:5px;margin-top:20px}
.pager button,.pager a,.pager .step{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;padding:0 6px;border:1px solid var(--rule);background:var(--paper);border-radius:5px;cursor:pointer;font-size:13.5px;color:var(--muted);text-decoration:none}
.pager button[aria-current="true"],.pager a[aria-current="true"]{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.pager button:hover:not([aria-current="true"]):not([disabled]),.pager a:hover:not([aria-current="true"]){border-color:#B9C4C0;color:var(--ink)}
/* 첫 쪽·마지막 쪽에서도 이전/다음 자리를 비우지 않고 흐리게 남겨 둡니다 */
.pager button[disabled],.pager .step.off{opacity:.4;cursor:default;pointer-events:none}
/* 생략 표시(…)는 칸처럼 보이지 않게 테두리를 없앱니다 */
.pager .gap{border:0;background:none;min-width:18px;cursor:default}

/* ---------- 게시글 ---------- */
.post-head{padding:22px 24px 16px;border-bottom:1px solid var(--rule)}
.post-head h1{font-size:21px;line-height:1.4}
.post-meta{display:flex;gap:14px;align-items:center;margin-top:11px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.post-body{padding:26px 24px;font-size:15px;line-height:1.85}
.post-body p + p{margin-top:15px}
.post-body ol{margin:14px 0 14px 20px}
.post-body li + li{margin-top:6px}
.files{border-top:1px solid var(--rule);padding:14px 24px;background:#FAFBFA}
.files h5{font-size:12.5px;color:var(--muted);font-weight:600;margin-bottom:8px}
.file{display:flex;align-items:center;gap:9px;padding:5px 0;font-size:13.5px}
.file + .file{border-top:1px solid #EDF1EF}
.file .name{color:var(--chalk);cursor:pointer}
.file .name:hover{text-decoration:underline;text-underline-offset:3px}
.file .size{color:var(--muted);font-size:12.5px;margin-left:auto;font-variant-numeric:tabular-nums}
.post-foot{display:flex;gap:8px;padding:14px 24px;border-top:1px solid var(--rule)}
.post-foot .right{margin-left:auto;display:flex;gap:8px}
.answer-block{border-left:3px solid var(--chalk);background:#FAFCFB}

/* ---------- 댓글 ---------- */
.cmt-head{padding:16px 24px 0;font-size:15px;font-weight:700}
.cmt{padding:15px 24px;border-bottom:1px solid #EDF1EF}
.cmt:last-of-type{border-bottom:0}
.cmt-top{display:flex;align-items:center;gap:9px;margin-bottom:5px}
.cmt-top b{font-size:13.5px}
.cmt-top time{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.cmt-top .acts{margin-left:auto;display:flex;gap:9px}
.cmt-top .acts button{background:none;border:0;color:var(--muted);font-size:12.5px;cursor:pointer;padding:0}
.cmt-top .acts button:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.cmt p{font-size:14px;line-height:1.7}
.cmt.gone p{color:var(--muted);font-style:italic}
.cmt-write{padding:16px 24px;border-top:1px solid var(--rule);background:#FAFBFA}
.cmt-write .row{display:flex;justify-content:space-between;align-items:center;margin-top:9px}
.counter{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.locked{padding:18px 24px;border-top:1px solid var(--rule);background:#FAFBFA;font-size:13.5px;color:var(--muted)}

/* ---------- 폼 ---------- */
textarea{width:100%;border:1px solid var(--rule);border-radius:6px;padding:11px 13px;resize:vertical;background:var(--paper);font-size:14px;line-height:1.6}
textarea:focus{outline:none;border-color:var(--chalk)}
.field{margin-bottom:17px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.field .hint{font-size:12.5px;color:var(--muted);font-weight:400;margin-left:6px}
.control{width:100%;border:1px solid var(--rule);border-radius:6px;padding:9px 12px;background:var(--paper)}
.control:focus{outline:none;border-color:var(--chalk)}
.field.bad .control{border-color:var(--mark)}
.err{font-size:12.5px;color:var(--mark);margin-top:5px}
.ok{font-size:12.5px;color:var(--chalk);margin-top:5px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
/* 메인 화면처럼 카드가 여러 줄로 놓일 때는 세로 간격도 줍니다 (.two 는 폼 2열에도 쓰여서 따로 둡니다) */
.two.cards{gap:18px 16px}
.radios{display:flex;gap:8px;flex-wrap:wrap}
.radios label{border:1px solid var(--rule);border-radius:6px;padding:8px 14px;cursor:pointer;font-size:14px;font-weight:500;background:var(--paper);margin:0}
.radios input{position:absolute;opacity:0;width:0;height:0}
.radios input:checked + span{color:var(--chalk);font-weight:700}
.radios label:has(input:checked){border-color:var(--chalk);background:var(--chalk-soft)}
.dropzone{border:1.5px dashed #C3CFCA;border-radius:8px;padding:22px;text-align:center;color:var(--muted);font-size:13.5px;background:#FAFBFA;cursor:pointer}
.dropzone:hover,.dropzone.dragover{border-color:var(--chalk);color:var(--chalk);background:var(--chalk-soft)}
.attached{margin-top:10px}
.attached .file .x{background:none;border:0;color:var(--muted);cursor:pointer;font-size:15px;line-height:1;padding:0 3px}
.attached .file .x:hover{color:var(--mark)}
.file .del{display:inline-flex;align-items:center;gap:4px;margin:0;font-size:12.5px;font-weight:400;color:var(--muted);cursor:pointer}
.file:has(.del input:checked) .name{text-decoration:line-through;color:var(--muted)}
.attached + .dropzone{margin-top:10px}
.formfoot{display:flex;gap:8px;justify-content:flex-end;padding-top:6px}
.readonly{background:var(--wash);color:var(--muted)}

/* ---------- 게이트(로그인/가입/찾기) ---------- */
.gate{min-height:100vh;display:grid;place-items:center;padding:30px;background:var(--ink)}
.gate-card{width:100%;max-width:380px;background:var(--paper);border-radius:11px;padding:34px 32px}
.gate-card.wide{max-width:520px}
.gate .wordmark{color:var(--ink);padding:0 0 22px}
.gate .wordmark span{color:var(--muted)}
.gate .wordmark:hover{color:var(--chalk)}
.gate .btn{width:100%;padding:11px;margin-top:4px}
.gate-links{display:flex;justify-content:center;gap:14px;margin-top:16px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.gate-links a:hover{color:var(--chalk);text-decoration:underline;text-underline-offset:3px}
.gate-msg{background:#FBEEEA;border:1px solid #E9C8BE;color:var(--mark);font-size:13px;padding:9px 12px;border-radius:6px;margin-bottom:16px}
.gate-msg.good{background:var(--chalk-soft);border-color:#BFD6CD;color:var(--chalk)}
.masked{font-family:var(--serif);font-size:19px;letter-spacing:.06em}

/* ---------- 쪽지 ---------- */
.mail{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.mail-item{padding:13px 18px;border-bottom:1px solid #EDF1EF;cursor:pointer}
.mail-item:last-child{border-bottom:0}
.mail-item:hover{background:#FAFBFA}
.mail-item.unread{background:#FCFBF3}
.mail-item.unread:hover{background:#F8F6EA}
.mail-top{display:flex;align-items:center;gap:8px}
.mail-top b{font-size:13.5px}
.mail-item.unread .mail-top b::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:#C9A227;margin-right:7px;vertical-align:1px}
.mail-top time{margin-left:auto;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.mail-item p{font-size:13.5px;color:var(--muted);margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.tabs{display:flex;gap:2px;border-bottom:1px solid var(--rule)}
.tabs button{background:none;border:0;padding:11px 15px;cursor:pointer;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button[aria-current="true"]{color:var(--ink);font-weight:700;border-bottom-color:var(--chalk)}

.empty{padding:48px 24px;text-align:center;color:var(--muted)}
.empty b{display:block;color:var(--ink);font-size:15px;margin-bottom:5px}
.empty .btn{margin-top:14px}

/* ---------- 마이페이지 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--rule);border-radius:9px;background:var(--paper);overflow:hidden}
.stat{padding:16px 18px;border-right:1px solid var(--rule)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat span{font-size:12.5px;color:var(--muted)}
.note{font-size:13px;color:var(--muted);background:#FAFBFA;border:1px solid var(--rule);border-radius:7px;padding:11px 14px;margin-top:16px}

/* ---------- 팝업 알림(모달) ---------- */
/* base.html 이 extra_tags="alert" 메시지를 이 모양으로 띄웁니다.
   브라우저 alert() 대신 쓰는 것이라 환경을 타지 않습니다. */
.modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(22,33,30,.45)}
.modal-box{width:100%;max-width:380px;background:var(--paper);border:1px solid var(--rule);border-radius:9px;padding:24px 24px 18px;box-shadow:0 12px 32px rgba(22,33,30,.18)}
.modal-text{font-size:15px;line-height:1.55;color:var(--ink)}
.modal-foot{display:flex;justify-content:flex-end;margin-top:20px}

/* ---------- 프로토타입 인덱스 ---------- */
.cover{max-width:760px;margin:0 auto;padding:64px 24px 90px}
.cover .wordmark{padding:0 0 8px;font-size:32px;color:var(--ink)}
.cover .wordmark span{color:var(--muted);font-size:13px}
.cover h2{margin:38px 0 12px;font-size:14px;color:var(--muted);font-weight:600}
.screens{border:1px solid var(--rule);border-radius:9px;background:var(--paper);overflow:hidden}
.screens a{display:flex;align-items:baseline;gap:14px;padding:14px 20px;border-bottom:1px solid #EDF1EF}
.screens a:last-child{border-bottom:0}
.screens a:hover{background:#FAFBFA}
.screens b{font-size:15px;min-width:112px}
.screens span{font-size:13.5px;color:var(--muted)}
.screens a:hover b{color:var(--chalk)}

@media (max-width:860px){
  .shell{grid-template-columns:1fr}
  .rail{flex-direction:row;flex-wrap:wrap;align-items:center;padding:14px;
        position:static;height:auto;overflow:visible}
  .rail nav{display:flex;flex-wrap:wrap;gap:4px;padding:0;width:100%;margin-top:10px;
            flex:none;overflow:visible}
  .rail h4{display:none}
  .navlink{width:auto}
  .navlink .cnt{margin-left:6px}
  .whoami{margin:12px 0 0;padding:12px 0 0;width:100%}
  .stage{padding:20px 16px 60px}
  .mail,.two{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--rule)}
  .col-writer,.col-no{display:none}
  .screens b{min-width:0}
  .screens a{flex-direction:column;gap:3px}
}

/* 공통 쪽지 팝업 */
.message-modal{display:none;position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.45);align-items:center;justify-content:center;padding:20px}
.message-modal.open{display:flex}
.message-modal-box{position:relative;width:min(460px,100%);max-height:90vh;overflow-y:auto;background:var(--paper);border-radius:12px;padding:24px;box-sizing:border-box}
.message-modal-close{position:absolute;top:12px;right:14px;border:0;background:transparent;font-size:28px;line-height:1;cursor:pointer}
.message-modal-box .field{margin-top:16px}
.message-modal-box .control{width:100%;box-sizing:border-box}
.message-modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
.message-result{display:none;margin-top:12px;font-size:13.5px}
.message-result.error{color:var(--mark)}