:root {
  --bg: #e8eff4;
  --panel: #f8fbfd;
  --ink: #12263a;
  --ink-soft: #4b6174;
  --line: #bccad6;
  --accent: #0a7f8f;
  --accent-ink: #ffffff;
  --track: #cfdbe4;
  --danger: #b3261e;
  --ok: #1b7a43;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1c28;
    --panel: #162636;
    --ink: #e6eef5;
    --ink-soft: #9db1c2;
    --line: #2c4256;
    --accent: #3cc3d4;
    --accent-ink: #06222a;
    --track: #25394b;
    --danger: #ff8a80;
    --ok: #6fd69a;
  }
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", Meiryo, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
a { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.site-header {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  max-width: 800px; margin: 0 auto; padding: 20px 20px 8px;
}
.brand { font-weight: 900; font-size: 1.5rem; letter-spacing: .04em; color: var(--ink); text-decoration: none; }
.nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; font-size: .95rem; }
.nav .who { color: var(--ink-soft); word-break: break-all; }
.badge { background: var(--accent); color: var(--accent-ink); font-weight: 700; font-size: .75rem; padding: 1px 8px; border-radius: 99px; }

main { max-width: 800px; margin: 0 auto; padding: 12px 20px 64px; }
h1 { font-size: 1.6rem; line-height: 1.3; margin: 12px 0 8px; }
h2 { font-size: 1.15rem; margin: 40px 0 10px; }
.lead { color: var(--ink-soft); margin: 0 0 20px; }

.btn {
  display: inline-block; font: inherit; font-weight: 700; cursor: pointer;
  padding: 10px 20px; border-radius: 8px; border: 2px solid var(--accent);
  background: var(--accent); color: var(--accent-ink); text-decoration: none;
}
.btn.ghost { background: transparent; color: var(--accent); }
.btn.small { padding: 3px 12px; font-size: .85rem; }
.btn.danger { border-color: var(--danger); color: var(--danger); background: transparent; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ドロップゾーン(このサイトの主役) */
.drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  min-height: 220px; padding: 24px; text-align: center; cursor: pointer;
  border: 3px dashed var(--accent); border-radius: 18px; background: var(--panel);
}
.drop strong { font-size: 1.35rem; }
.drop span { color: var(--ink-soft); font-size: .9rem; }
.drop.over { background: color-mix(in srgb, var(--accent) 14%, var(--panel)); border-style: solid; }

.opts { display: flex; align-items: center; gap: 10px; margin: 14px 0 0; flex-wrap: wrap; }
select, input[type=email], input[type=password] {
  font: inherit; color: var(--ink); background: var(--panel);
  border: 2px solid var(--line); border-radius: 8px; padding: 8px 10px;
}
input[type=email], input[type=password] { width: 100%; }

/* アップロード進捗 */
.queue { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 18px; }
.job { border-top: 2px solid var(--line); padding-top: 12px; }
.job-top { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.job-name { font-weight: 700; word-break: break-all; }
.job-pct { font-size: 2.6rem; font-weight: 900; line-height: 1; font-variant-numeric: tabular-nums; min-width: 4ch; text-align: right; }
.bar { height: 16px; border-radius: 8px; background: var(--track); overflow: hidden; margin: 8px 0; }
.bar-fill { height: 100%; width: 0; background: var(--accent); border-radius: 8px; transition: width .15s linear; }
.job.done .job-pct { color: var(--ok); }
.job.fail .job-pct, .job.fail .job-msg { color: var(--danger); }
.job-msg { font-size: .9rem; color: var(--ink-soft); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.linkbox { display: flex; gap: 8px; width: 100%; }
.linkbox input { flex: 1; min-width: 0; font: inherit; font-size: .9rem; padding: 6px 10px; border: 2px solid var(--line); border-radius: 8px; background: var(--panel); color: var(--ink); }

/* 一覧 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-weight: 700; color: var(--ink-soft); white-space: nowrap; }
td.name { word-break: break-all; min-width: 160px; }
td.num { white-space: nowrap; }
.empty { color: var(--ink-soft); padding: 12px 0; }

/* フォーム */
.form { max-width: 420px; display: grid; gap: 14px; margin-top: 16px; }
.form label { font-weight: 700; display: grid; gap: 4px; }
.err { color: var(--danger); min-height: 1.5em; margin: 0; }

/* ダウンロードページ */
.dl { margin-top: 16px; padding: 28px 0; border-top: 2px solid var(--line); border-bottom: 2px solid var(--line); }
.dl .fname { font-size: 1.5rem; font-weight: 900; word-break: break-all; line-height: 1.4; margin: 0 0 6px; }
.dl .meta { color: var(--ink-soft); margin: 0 0 22px; }
.dl .btn { font-size: 1.15rem; padding: 14px 32px; }

[hidden] { display: none !important; }
@media (prefers-reduced-motion: reduce) { .bar-fill { transition: none; } }