:root {
  --bg: #f6f7f9; --surface: #ffffff; --border: #e2e5ea;
  --text: #1c1f24; --text2: #5b6472; --muted: #8b93a1;
  --accent: #2563eb; --accent-ink: #ffffff; --danger: #dc2626;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a; --surface: #1d2026; --border: #2e333b;
    --text: #e8eaee; --text2: #a8b0bc; --muted: #6d7684;
    --accent: #3b82f6; --accent-ink: #ffffff; --danger: #ef4444;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  display: flex; flex-direction: column;
  font-family: "Apple SD Gothic Neo", "Pretendard", "Malgun Gothic", system-ui, sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px;
}

.app-header {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.app-header h1 { font-size: 17px; margin: 0; }
.app-header nav { display: flex; gap: 4px; flex-wrap: wrap; }
.tab {
  border: none; background: none; color: var(--text2); font-size: 14px;
  padding: 7px 12px; border-radius: 8px; cursor: pointer;
}
.tab:hover { background: var(--bg); }
.tab.active { background: var(--accent); color: var(--accent-ink); }

main { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.view { padding: 20px 16px 40px; max-width: 920px; width: 100%; margin: 0 auto; }
.view-dash { max-width: none; padding: 0; flex: 1; display: flex; min-height: 0; }
iframe.dash { border: none; width: 100%; flex: 1; min-height: 70vh; }

h2 { margin: 4px 0 12px; font-size: 20px; }
h3 { margin: 24px 0 8px; font-size: 16px; }
.hint { color: var(--muted); font-size: 13px; }
.empty { color: var(--muted); padding: 40px 16px; text-align: center; }
code { background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 12.5px; }

.btn {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  border-radius: 8px; padding: 7px 14px; font-size: 14px; cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { color: var(--danger); }
.btn.small { padding: 3px 9px; font-size: 12.5px; }

.dropzone {
  border: 2px dashed var(--border); border-radius: 14px; padding: 34px 16px;
  text-align: center; background: var(--surface); transition: border-color .15s;
}
.dropzone.over { border-color: var(--accent); }
.dropzone p { margin: 6px 0; }

.upload-list { margin-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.upload-row {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px;
}
.upload-row.done { opacity: .65; }
.upload-row.err { border-color: var(--danger); }
.upload-row .fname { font-weight: 600; font-size: 13.5px; word-break: break-all; flex: 1 1 100%; }
.upload-row .status { font-size: 13px; color: var(--text2); }
.upload-row.err .status { color: var(--danger); }
.meta-form { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.meta-form input, .meta-form select, .owner-field input, .owner-field select {
  background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 8px; font-size: 13.5px;
}
.owner-field { display: inline-flex; gap: 6px; }
.upload-actions { margin-top: 14px; display: flex; align-items: center; gap: 10px; }

.data-table { border-collapse: collapse; width: 100%; background: var(--surface); font-size: 13.5px; }
.data-table th, .data-table td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; white-space: nowrap; }
.data-table th { background: var(--bg); color: var(--text2); font-weight: 600; }
.data-table td.num { text-align: right; }
.data-table td.fname { max-width: 260px; overflow: hidden; text-overflow: ellipsis; }
.data-table input { width: 90px; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 4px 6px; }
.scroll-x { overflow-x: auto; margin: 8px 0; }
.toolbar { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }

.notice {
  background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--accent);
  border-radius: 10px; padding: 4px 16px; margin: 16px 0;
}
details { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; margin: 8px 0; }
summary { cursor: pointer; }

.app-footer {
  padding: 10px 16px; border-top: 1px solid var(--border); background: var(--surface);
  color: var(--muted); font-size: 12.5px; text-align: center;
}