:root {
  --accent: #36c5f0;
  --accent2: #7b6cff;
  --danger: #ff5d73;
  --ok: #2fd39a;
  --radius: 16px;
  --font: "Inter", "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
}
html[data-theme="dark"] {
  --bg: #0b1020;
  --bg2: #131a33;
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: #eef2ff;
  --muted: #9aa5c4;
  --input: rgba(255, 255, 255, 0.07);
  --line: rgba(255, 255, 255, 0.1);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}
html[data-theme="light"] {
  --bg: #eef3fb;
  --bg2: #dfe8f7;
  --card: rgba(255, 255, 255, 0.75);
  --card-border: rgba(20, 40, 90, 0.1);
  --text: #121a2e;
  --muted: #5b6684;
  --input: rgba(255, 255, 255, 0.9);
  --line: rgba(20, 40, 90, 0.1);
  --shadow: 0 20px 50px rgba(40, 70, 140, 0.15);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100vh; }
body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 60%),
    radial-gradient(900px 500px at 110% 10%, color-mix(in srgb, var(--accent2) 26%, transparent), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
.wrap { max-width: 980px; margin: 0 auto; padding: 20px 16px 60px; }
.wrap.narrow { max-width: 620px; }
header.top { display: flex; align-items: center; gap: 12px; margin: 4px 0 22px; }
header.top .brand { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 20px; letter-spacing: 0.02em; }
header.top .spacer { flex: 1; }
.logo-mark {
  width: 40px; height: 40px; border-radius: 12px; display: inline-grid; place-items: center;
  font-weight: 900; font-size: 15px; color: #fff; letter-spacing: 0.04em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 45%, transparent);
}
.center .logo-mark { margin: 0 auto 10px; width: 56px; height: 56px; font-size: 20px; border-radius: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.card h2 { margin: 0 0 14px; font-size: 17px; }
.center { text-align: center; }
h1 { font-size: 22px; margin: 6px 0 8px; word-break: break-word; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.btn {
  appearance: none; border: 1px solid var(--card-border); background: var(--input); color: var(--text);
  padding: 10px 16px; border-radius: 12px; font: inherit; font-weight: 600; cursor: pointer;
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  transition: transform .08s ease, filter .15s ease, background .15s ease;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; border-color: transparent; box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 35%, transparent); }
.btn.danger { color: var(--danger); }
.btn.small { padding: 6px 10px; font-size: 13px; border-radius: 10px; }
.btn.big { padding: 14px 22px; font-size: 16px; width: 100%; }
.btn.theme { border-color: color-mix(in srgb, var(--accent) 60%, transparent); }
label.field { display: block; margin-bottom: 14px; }
label.field > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; font-weight: 600; }
input[type=text], input[type=password], input[type=number], textarea, select {
  width: 100%; padding: 11px 13px; border-radius: 12px; border: 1px solid var(--card-border);
  background: var(--input); color: var(--text); font: inherit; outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
textarea { min-height: 80px; resize: vertical; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1 1 200px; }
.seg { display: inline-flex; border: 1px solid var(--card-border); border-radius: 12px; overflow: hidden; }
.seg button { border: 0; background: transparent; color: var(--text); padding: 9px 14px; font: inherit; cursor: pointer; }
.seg button.on { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; }
.prefix { display: flex; align-items: center; border: 1px solid var(--card-border); border-radius: 12px; background: var(--input); overflow: hidden; }
.prefix span { padding: 0 4px 0 12px; color: var(--muted); white-space: nowrap; font-size: 14px; }
.prefix input { border: 0; background: transparent; box-shadow: none !important; padding-left: 2px; }

.drop {
  border: 2px dashed color-mix(in srgb, var(--accent) 55%, var(--card-border));
  border-radius: var(--radius); padding: 30px 16px; text-align: center; cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.drop.over { background: color-mix(in srgb, var(--accent) 12%, transparent); border-color: var(--accent); }
.drop .big-icon { font-size: 40px; line-height: 1; margin-bottom: 8px; }
.drop .actions { margin-top: 14px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.list { margin-top: 14px; max-height: 320px; overflow: auto; border-radius: 12px; border: 1px solid var(--line); }
.list .item { display: flex; gap: 10px; align-items: center; padding: 8px 12px; border-bottom: 1px solid var(--line); font-size: 14px; }
.list .item:last-child { border-bottom: 0; }
.list .item .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.list .item .size { color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.list .item .x { border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 16px; }

.progress { height: 10px; border-radius: 10px; background: var(--input); overflow: hidden; border: 1px solid var(--line); }
.progress > div { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent2)); transition: width .2s ease; }
.stats { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); margin-top: 6px; font-variant-numeric: tabular-nums; }

.result .url { display: flex; gap: 8px; align-items: center; }
.result .url input { font-size: 18px; font-weight: 700; color: var(--accent); }
.result pre { white-space: pre-wrap; background: var(--input); padding: 12px; border-radius: 12px; border: 1px solid var(--line); font-family: inherit; margin: 10px 0; }

table.tx { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tx th, table.tx td { padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
table.tx th { color: var(--muted); font-weight: 600; font-size: 12px; }
table.tx td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
table.tx .title { font-weight: 600; word-break: break-all; }
table.tx .code { font-family: ui-monospace, monospace; font-size: 12px; color: var(--muted); }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; border: 1px solid var(--card-border); }
.badge.ok { color: var(--ok); }
.badge.ng { color: var(--danger); }
.badge.lock { color: var(--accent2); }
.table-wrap { overflow-x: auto; }

.tree { margin-top: 10px; }
.tree details { margin-left: 4px; }
.tree summary { cursor: pointer; padding: 6px 4px; font-weight: 600; list-style: none; }
.tree summary::before { content: "▸"; display: inline-block; width: 16px; color: var(--muted); transition: transform .15s; }
.tree details[open] > summary::before { transform: rotate(90deg); }
.tree .children { margin-left: 14px; border-left: 1px solid var(--line); padding-left: 8px; }
.tree .file { display: flex; gap: 10px; align-items: center; padding: 7px 4px; border-bottom: 1px solid var(--line); }
.tree .file .name { flex: 1; min-width: 0; word-break: break-all; }
.tree .file .size { color: var(--muted); font-size: 13px; white-space: nowrap; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 10px 18px; border-radius: 999px; font-weight: 600; opacity: 0; transition: opacity .2s; pointer-events: none; z-index: 10; }
.toast.show { opacity: .95; }
.err { color: var(--danger); font-weight: 600; }
.hidden { display: none !important; }
.foot { text-align: center; color: var(--muted); font-size: 12px; margin-top: 30px; }
@media (max-width: 640px) {
  table.tx .hide-sm { display: none; }
  .card { padding: 16px; }
}