:root {
  --bg: #0f1420; --panel: #161d2b; --panel-2: #1c2436; --border: #232c3d;
  --text: #e6e9f0; --text-dim: #8b93a7; --accent: #4f8cff; --accent-dim: #29406b;
  --ok: #22c55e; --warn: #f5a524; --hold: #a78bfa; --danger: #f43f5e; --grey: #8b93a7;
  --radius: 10px;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; height: 100%; background: var(--bg); color: var(--text);
  font-family: 'Segoe UI', 'Pretendard', -apple-system, sans-serif; font-size: 14px;
}
.view { display: none; }
.view.active { display: block; }

/* -------- Login -------- */
#loginView.active { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-card { width: 100%; max-width: 340px; text-align: center; padding: 24px; }
.login-mark {
  width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), #7b5cff);
  display: flex; align-items: center; justify-content: center; font-weight: 800; color: white; font-size: 20px;
}
.login-card h1 { font-size: 17px; margin: 0 0 4px; }
.login-card p { font-size: 12px; color: var(--text-dim); margin: 0 0 20px; }
.field { text-align: left; margin-bottom: 12px; }
.field label { display: block; font-size: 11.5px; color: var(--text-dim); margin-bottom: 5px; font-weight: 600; }
.field input {
  width: 100%; background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 12px; border-radius: 8px; font-size: 13.5px;
}
.field input:focus { outline: none; border-color: var(--accent); }
.login-error { color: var(--danger); font-size: 12px; margin: 8px 0; min-height: 16px; }

/* -------- App shell -------- */
#app { display: grid; grid-template-columns: 240px 1fr; height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--border); display: flex; flex-direction: column; padding: 20px 14px; }
.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; padding: 0 6px; }
.brand-mark { width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg, var(--accent), #7b5cff); display: flex; align-items: center; justify-content: center; font-weight: 700; color: white; font-size: 14px; }
.brand-text { font-weight: 700; font-size: 15px; letter-spacing: -0.2px; }
.brand-sub { font-size: 11px; color: var(--text-dim); margin-top: -2px; }
.server-status { margin: 14px 6px 20px; padding: 10px 12px; background: var(--panel-2); border: 1px solid var(--border); border-radius: var(--radius); font-size: 12px; color: var(--text-dim); }
.server-status .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--ok); margin-right: 6px; box-shadow: 0 0 0 3px rgba(34,197,94,0.15); }
.server-status .dot.off { background: var(--danger); box-shadow: 0 0 0 3px rgba(244,63,94,.15); }
.nav { display: flex; flex-direction: column; gap: 2px; margin-top: 4px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px; cursor: pointer; color: var(--text-dim); font-size: 13.5px; font-weight: 500; }
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: var(--accent-dim); color: #cfe0ff; }
.nav-item .badge { margin-left: auto; background: var(--danger); color: white; font-size: 10.5px; font-weight: 700; padding: 1px 6px; border-radius: 10px; }
.logout-link { margin-top: auto; font-size: 12px; color: var(--text-dim); cursor: pointer; padding: 8px 10px; }
.logout-link:hover { color: var(--danger); }

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar { height: 60px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; padding: 0 24px; flex-shrink: 0; }
.topbar h1 { font-size: 17px; margin: 0; font-weight: 700; }
.topbar .desc { font-size: 12px; color: var(--text-dim); margin-top: 2px; }
.content { flex: 1; overflow-y: auto; padding: 22px 24px; }
.panel { display: none; }
.panel.active { display: block; }

.btn { border: 1px solid var(--border); background: var(--panel-2); color: var(--text); padding: 8px 14px; border-radius: 8px; font-size: 13px; font-weight: 600; cursor: pointer; }
.btn:hover { background: #232d42; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn-primary:hover { background: #3f79ea; }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: rgba(244,63,94,0.1); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-full { width: 100%; }

.tabs { display: flex; gap: 6px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tab { padding: 9px 16px; font-size: 13.5px; font-weight: 600; color: var(--text-dim); cursor: pointer; border-bottom: 2px solid transparent; display: flex; align-items: center; gap: 7px; }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }
.tab .count { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; font-size: 11px; padding: 0 7px; color: var(--text-dim); }
.tab.active .count { color: var(--accent); border-color: var(--accent-dim); }

.list { display: flex; flex-direction: column; gap: 8px; }
.row { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 13px 16px; display: grid; grid-template-columns: 90px 1fr 130px 150px 90px; gap: 14px; align-items: center; cursor: pointer; }
.row:hover { border-color: #33415c; background: var(--panel-2); }
.row .desc { color: var(--text); font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .user { font-size: 12.5px; color: var(--text-dim); }
.row .time { font-size: 12px; color: var(--text-dim); text-align: right; }
.row .thumb-count { font-size: 12px; color: var(--text-dim); }

.status-badge { font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 20px; display: inline-flex; align-items: center; gap: 5px; width: fit-content; }
.status-badge.open { background: rgba(139,147,167,0.15); color: var(--grey); }
.status-badge.accepted { background: rgba(79,140,255,0.15); color: var(--accent); }
.status-badge.processing { background: rgba(245,165,36,0.15); color: var(--warn); }
.status-badge.hold { background: rgba(167,139,250,0.15); color: var(--hold); }
.status-badge.denied { background: rgba(244,63,94,0.15); color: var(--danger); }
.status-badge.done { background: rgba(34,197,94,0.15); color: var(--ok); }

.empty-state { padding: 60px 20px; text-align: center; color: var(--text-dim); font-size: 13.5px; }

.user-form { display: flex; gap: 8px; margin-bottom: 18px; background: var(--panel); border: 1px solid var(--border); padding: 14px; border-radius: var(--radius); flex-wrap: wrap; }
.user-form input { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 9px 12px; border-radius: 8px; font-size: 13px; flex: 1; min-width: 140px; }
.user-form input:focus { outline: none; border-color: var(--accent); }
.user-row { display: grid; grid-template-columns: 1fr 1fr 100px 140px; align-items: center; padding: 11px 14px; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.user-row:last-child { border-bottom: none; }
.user-row .name { font-weight: 600; }

.modal-overlay { position: fixed; inset: 0; background: rgba(5,8,14,0.65); display: none; align-items: center; justify-content: center; z-index: 50; }
.modal-overlay.open { display: flex; }
.modal { width: 720px; max-width: 92vw; max-height: 88vh; overflow-y: auto; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 24px; }
.modal-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 14px; }
.modal-header h2 { margin: 0 0 4px; font-size: 16px; }
.modal-header .meta { font-size: 12px; color: var(--text-dim); }
.modal-close { cursor: pointer; color: var(--text-dim); font-size: 20px; line-height: 1; background: none; border: none; }
.shots { display: flex; gap: 10px; margin: 14px 0; }
.shots img { width: 100%; border-radius: 8px; border: 1px solid var(--border); cursor: zoom-in; }
.description-box { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; font-size: 13.5px; line-height: 1.55; white-space: pre-wrap; margin-bottom: 16px; }
.status-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.status-actions button { flex: 1; min-width: 88px; }
.msg-box { display: flex; gap: 8px; }
.msg-box input { flex: 1; background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 10px 12px; border-radius: 8px; font-size: 13px; }
.msg-box input:focus { outline: none; border-color: var(--accent); }
.section-label { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--text-dim); margin: 0 0 8px; }

/* -------- 대화 내역 (Issue 상세 모달) -------- */
.messages { display: flex; flex-direction: column; gap: 8px; margin: 0 0 14px; max-height: 260px; overflow-y: auto; padding: 4px 2px; }
.msg-bubble { padding: 9px 12px; border-radius: 10px; font-size: 13px; max-width: 78%; line-height: 1.5; }
.msg-bubble .from-label { font-size: 10.5px; font-weight: 700; margin-bottom: 3px; opacity: .75; }
.msg-bubble .time { font-size: 10.5px; margin-top: 4px; opacity: .65; }
.msg-bubble.server { background: var(--accent); color: white; align-self: flex-end; }
.msg-bubble.client { background: var(--panel-2); border: 1px solid var(--border); align-self: flex-start; }
.messages .empty-state { padding: 16px 0; }

.msg-unread-dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--danger);
  margin-right: 6px; box-shadow: 0 0 0 3px rgba(244,63,94,0.18); vertical-align: middle; flex-shrink: 0;
}
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,0.85); display: none; align-items: center; justify-content: center; z-index: 100; cursor: zoom-out; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 90vw; max-height: 90vh; border-radius: 6px; }

@media (max-width: 720px) {
  #app { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .sidebar { flex-direction: row; align-items: center; padding: 10px 14px; overflow-x: auto; }
  .server-status { display: none; }
  .nav { flex-direction: row; margin-top: 0; }
  .row { grid-template-columns: 70px 1fr; grid-template-rows: auto auto; }
  .row .user, .row .time, .row .thumb-count { display: none; }
}