:root{
  color-scheme: light;
  --bg:#f4f6fb; --panel:#fff; --ink:#0f172a; --ink-2:#475569; --ink-3:#94a3b8;
  --line:#e2e8f0; --line-2:#f1f5f9; --brand:#1f4e79; --brand-2:#2e75b6; --brand-soft:#e8f0f9;
  --green:#16a34a; --green-soft:#dcfce7;
  --orange:#ea580c; --orange-soft:#ffedd5;
  --red:#dc2626; --red-soft:#fee2e2;
  --blue:#2563eb; --blue-soft:#dbeafe;
  --gray-soft:#f1f5f9;
  --shadow:0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font-family:inherit}

.app{max-width:1240px;margin:0 auto;padding:0 20px}

/* Topbar */
.topbar{display:flex;align-items:center;gap:18px;padding:18px 4px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;margin-right:10px}
.brand-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#3b82f6,#1f4e79);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px}
.brand-name{font-weight:700;font-size:16px;color:var(--ink)}
.brand-sub{font-size:11.5px;color:var(--ink-3)}
.tabs{display:flex;gap:4px;background:#fff;padding:4px;border-radius:10px;border:1px solid var(--line);box-shadow:var(--shadow)}
.tab{padding:8px 16px;border-radius:7px;cursor:pointer;font-size:13.5px;color:var(--ink-2);font-weight:500;text-decoration:none;transition:all .12s}
.tab:hover{background:var(--gray-soft);color:var(--ink)}
.tab.active{background:var(--brand);color:#fff}
.status{margin-left:auto;font-size:12px;color:var(--ink-3);background:#fff;padding:6px 12px;border-radius:999px;border:1px solid var(--line)}
.status .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#16a34a;margin-right:6px;vertical-align:middle}
.status .dot.warn{background:#ea580c}

.content{padding:8px 4px 60px}

/* Cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);margin-bottom:14px}
.card-h{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.card-h h2{margin:0;font-size:15px;font-weight:600}
.card-h .sub{color:var(--ink-3);font-size:12px;margin-left:6px}
.card-h .right{margin-left:auto;display:flex;gap:8px}
.card-b{padding:18px}
.grid{display:grid;gap:14px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.row{display:flex;gap:14px}

/* Form */
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:600;margin-bottom:6px;color:var(--ink-2)}
.field label .req{color:var(--red)}
.helper{font-size:11.5px;color:var(--ink-3);margin-top:4px}
input[type=text],input[type=email],input[type=tel],input[type=number],input[type=password],input[type=datetime-local],select,textarea{
  width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:8px;font-size:13px;background:#fff;color:var(--ink)
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(46,117,182,.15)}
textarea{min-height:120px;resize:vertical}

.checkbox-row{display:flex;flex-wrap:wrap;gap:8px}
.check-pill{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;cursor:pointer;font-size:12.5px;background:#fff;user-select:none}
.check-pill input{accent-color:var(--brand);margin:0}
.check-pill.sel{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);font-weight:600}

/* Buttons */
.btn{appearance:none;border:1px solid var(--line);background:#fff;color:var(--ink);padding:8px 14px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.btn:hover{background:var(--gray-soft)}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn.primary:hover{background:#163e64}
.btn.danger{background:var(--red);color:#fff;border-color:var(--red)}
.btn.sm{padding:5px 10px;font-size:12px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* Tables */
table.list{width:100%;border-collapse:separate;border-spacing:0;font-size:13px}
table.list th{text-align:left;padding:10px 12px;background:var(--gray-soft);color:var(--ink-2);font-weight:600;border-bottom:1px solid var(--line);font-size:12.5px}
table.list td{padding:11px 12px;border-bottom:1px solid var(--line-2);vertical-align:middle}
table.list tr:hover td{background:#fafbff;cursor:pointer}

/* Pills */
.pill{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;padding:3px 9px;border-radius:999px;font-weight:600;white-space:nowrap}
.pill::before{content:'';width:6px;height:6px;border-radius:50%}
.pill.sent{background:var(--green-soft);color:var(--green)} .pill.sent::before{background:var(--green)}
.pill.draft{background:var(--gray-soft);color:var(--ink-3)} .pill.draft::before{background:var(--ink-3)}
.pill.failed{background:var(--red-soft);color:var(--red)} .pill.failed::before{background:var(--red)}
.pill.sending{background:var(--blue-soft);color:var(--blue)} .pill.sending::before{background:var(--blue)}
.pill.urgent{background:var(--red-soft);color:var(--red)} .pill.urgent::before{background:var(--red)}
.pill.normal{background:var(--blue-soft);color:var(--blue)} .pill.normal::before{background:var(--blue)}
.pill.cat{background:var(--brand-soft);color:var(--brand)} .pill.cat::before{background:var(--brand)}
.badge-tag{display:inline-block;background:var(--brand-soft);color:var(--brand);font-size:11px;padding:2px 8px;border-radius:999px;font-weight:600;margin-right:4px}

/* Preview */
.preview-frame{background:linear-gradient(180deg,#a3c7e8,#9ec1e3);border-radius:18px;padding:16px;font-size:13px}
.preview-frame .header{font-size:12px;color:#1e3a5f;margin-bottom:8px;font-weight:500}
.kakao-bubble{background:#fff;border-radius:14px;padding:12px 14px;font-size:13px;line-height:1.55;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.kakao-bubble .title{font-weight:700;margin-bottom:6px}
.kakao-bubble .body{white-space:pre-wrap;color:#374151}
.kakao-bubble .meta{font-size:11px;color:#64748b;margin-top:8px;border-top:1px dashed #e2e8f0;padding-top:6px}
.email-frame{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px;font-size:13px}
.email-frame .from{font-size:12px;color:var(--ink-3);margin-bottom:4px}
.email-frame .subject{font-weight:700;font-size:14px;margin-bottom:8px}
.email-frame .body{white-space:pre-wrap;font-size:12.5px;color:var(--ink-2)}

/* Modal */
.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.5);display:none;z-index:50;align-items:center;justify-content:center;padding:24px;backdrop-filter:blur(2px)}
.modal-bg.active{display:flex}
.modal{background:#fff;border-radius:14px;width:100%;max-width:720px;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal.lg{max-width:900px}
.modal-h{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.modal-h h3{margin:0;font-size:16px;font-weight:600}
.modal-h .close{margin-left:auto;background:transparent;border:none;cursor:pointer;color:var(--ink-3);font-size:22px;width:32px;height:32px;border-radius:6px}
.modal-h .close:hover{background:var(--gray-soft);color:var(--ink)}
.modal-b{padding:20px;overflow:auto;flex:1}
.modal-f{padding:14px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px;background:var(--gray-soft);border-radius:0 0 14px 14px}

/* Toast */
.toast{position:fixed;bottom:24px;right:24px;background:#0f172a;color:#fff;padding:12px 18px;border-radius:10px;font-size:13px;z-index:100;box-shadow:0 10px 30px rgba(0,0,0,.3);display:flex;gap:10px;align-items:center;animation:slideIn .25s ease-out}
@keyframes slideIn{from{transform:translateY(20px);opacity:0}to{transform:none;opacity:1}}
.toast .ok{color:#22c55e;font-size:18px}
.toast .err{color:#ef4444;font-size:18px}

/* Send progress rows */
.send-list{display:flex;flex-direction:column;gap:8px;max-height:380px;overflow:auto}
.send-row{display:flex;align-items:center;gap:10px;padding:10px;background:var(--gray-soft);border-radius:8px;font-size:13px}
.send-row .name{font-weight:600;flex:1}
.send-row .ch{font-size:11px;color:var(--ink-3);background:#fff;padding:2px 8px;border-radius:999px;border:1px solid var(--line)}
.send-row .st{font-size:12px;font-weight:600;min-width:55px;text-align:right}
.send-row .st.ok{color:var(--green)}
.send-row .st.go{color:var(--orange)}
.send-row .st.wait{color:var(--ink-3)}
.send-row .st.err{color:var(--red)}

.info-grid{display:grid;grid-template-columns:120px 1fr;gap:8px 14px;font-size:13px}
.info-grid .k{color:var(--ink-3);font-weight:500}
.info-grid .v{color:var(--ink);font-weight:500}

.empty{padding:40px;text-align:center;color:var(--ink-3)}
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.toolbar input[type=text]{max-width:300px}
.text-muted{color:var(--ink-3)}
.text-orange{color:var(--orange)}
.text-red{color:var(--red)}
.text-green{color:var(--green)}
.num-mono{font-family:"SF Mono",Consolas,monospace;font-size:12.5px}
.lbl-strong{font-weight:600}
.small{font-size:12px}
.nowrap{white-space:nowrap}
hr.sep{border:none;border-top:1px solid var(--line);margin:16px 0}
.muted-box{background:var(--gray-soft);padding:12px 14px;border-radius:8px;font-size:13px;line-height:1.55}
.info-box{background:var(--brand-soft);border-left:4px solid var(--brand);padding:14px 16px;border-radius:8px;font-size:13px;line-height:1.6;color:var(--ink-2)}
.warn-box{background:var(--orange-soft);border-left:4px solid var(--orange);padding:14px 16px;border-radius:8px;font-size:13px;line-height:1.6}

@media (max-width:760px){
  .grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .topbar{flex-direction:column;align-items:stretch}
  .status{margin-left:0}
}

/* ===== 첨부파일 영역 ===== */
.dropzone{border:2px dashed var(--line);border-radius:10px;padding:18px;text-align:center;color:var(--ink-3);background:var(--gray-soft);cursor:pointer;transition:all .15s}
.dropzone:hover{border-color:var(--brand-2);background:var(--brand-soft);color:var(--brand)}
.dropzone.over{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.dropzone .ico{font-size:24px;margin-bottom:6px}
.dropzone .small{display:block;margin-top:4px}
.attach-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin-top:10px}
.attach-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:11.5px}
.attach-item .thumb{width:100%;aspect-ratio:1/1;background:var(--gray-soft);display:flex;align-items:center;justify-content:center;font-size:32px;color:var(--ink-3)}
.attach-item .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.attach-item .name{padding:6px 8px;color:var(--ink);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.attach-item .size{padding:0 8px 6px;color:var(--ink-3);font-size:11px}
.attach-item .rm{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;background:rgba(15,23,42,.7);color:#fff;border:none;cursor:pointer;font-size:14px;line-height:1;padding:0;display:flex;align-items:center;justify-content:center}
.attach-item .rm:hover{background:var(--red)}

/* preview 안 첨부 표시 */
.preview-attach{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px}
.preview-attach .pa-img{width:60px;height:60px;border-radius:6px;object-fit:cover;border:1px solid var(--line)}
.preview-attach .pa-doc{background:var(--gray-soft);border:1px solid var(--line);padding:4px 10px;border-radius:6px;font-size:11.5px;color:var(--ink-2)}

/* 이력 상세의 첨부 갤러리 */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;margin-top:10px}
.gallery a{display:block;border:1px solid var(--line);border-radius:8px;overflow:hidden;text-decoration:none;color:inherit;background:#fff}
.gallery a:hover{border-color:var(--brand-2)}
.gallery .thumb{width:100%;aspect-ratio:1/1;background:var(--gray-soft);display:flex;align-items:center;justify-content:center;font-size:36px;color:var(--ink-3)}
.gallery .thumb img{width:100%;height:100%;object-fit:cover}
.gallery .meta{padding:6px 8px;font-size:11.5px}
.gallery .meta .name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gallery .meta .size{color:var(--ink-3);font-size:11px}