@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

:root {
  --bg: #0e0f11;
  --surface: #16181b;
  --surface-2: #1c1f23;
  --line: #2a2e33;
  --line-strong: #383d44;
  --text: #e8eaed;
  --muted: #9aa1a9;
  --accent: #e0a458;
  --accent-soft: rgba(224, 164, 88, 0.14);
  --sans: 'IBM Plex Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

.skip { position: absolute; left: -9999px; top: 0; background: var(--accent); color: #1a1206; padding: 8px 14px; z-index: 50; }
.skip:focus { left: 12px; top: 12px; }

.topbar { position: sticky; top: 0; z-index: 30; background: rgba(14, 15, 17, 0.92); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.topbar-inner { max-width: 1180px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: baseline; gap: 8px; font-weight: 700; font-size: 17px; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.brand .slash { color: var(--accent); font-family: var(--mono); }
.brand .sub { font-family: var(--mono); font-size: 12px; color: var(--muted); font-weight: 400; }
.topnav { display: flex; gap: 18px; }
.topnav a { color: var(--muted); text-decoration: none; font-size: 14px; border-bottom: 1px solid transparent; padding: 4px 0; }
.topnav a:hover { color: var(--text); border-bottom-color: var(--line-strong); }
.topnav a.active { color: var(--text); border-bottom-color: var(--accent); }

.main { flex: 1; display: flex; align-items: center; justify-content: center; padding: 40px 20px; }
.card { width: 100%; max-width: 460px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 28px; }
.card h1 { margin: 0 0 6px; font-size: 22px; letter-spacing: -0.01em; }
.card .lead { margin: 0 0 20px; color: var(--muted); font-size: 14px; }

.drop { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 28px 16px; border: 1px dashed var(--line-strong); border-radius: 10px; background: var(--surface-2); cursor: pointer; text-align: center; transition: border-color 0.15s ease; }
.drop:hover { border-color: var(--accent); }
.drop .t { font-weight: 600; }
.drop .s { color: var(--muted); font-size: 13px; }
.drop input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop.has-file { border-style: solid; border-color: var(--accent); }
.drop .picked { font-family: var(--mono); font-size: 12px; color: var(--accent); margin-top: 4px; word-break: break-all; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; width: 100%; min-height: 44px; margin-top: 16px; padding: 10px 18px; font-family: var(--sans); font-size: 14px; font-weight: 600; color: #1a1206; background: var(--accent); border: 1px solid var(--accent); border-radius: 8px; cursor: pointer; }
.btn:hover { opacity: 0.9; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.hint { margin: 14px 0 0; color: var(--muted); font-size: 12.5px; text-align: center; }

.kv { margin: 0 0 18px; border-top: 1px solid var(--line); }
.kv .row { display: flex; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.kv .k { color: var(--muted); width: 96px; flex: none; }
.kv .v { font-family: var(--mono); word-break: break-all; }

.urlbox { display: flex; gap: 8px; align-items: stretch; margin-bottom: 8px; }
.urlbox input { flex: 1; min-width: 0; background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; color: var(--text); font-family: var(--mono); font-size: 12.5px; padding: 11px 12px; }
.urlbox .copy { flex: none; min-height: 44px; padding: 0 16px; background: transparent; color: var(--text); border: 1px solid var(--line-strong); border-radius: 8px; font-family: var(--sans); font-size: 13px; font-weight: 600; cursor: pointer; }
.urlbox .copy:hover { border-color: var(--accent); color: var(--accent); }
.urlbox .copy.done { color: var(--accent); border-color: var(--accent); }

.actions { display: flex; gap: 10px; margin-top: 6px; }
.actions .btn { margin-top: 0; }

.note { color: var(--muted); font-size: 12.5px; margin: 14px 0 0; }

.foot { border-top: 1px solid var(--line); padding: 20px; color: var(--muted); font-size: 13px; display: flex; gap: 18px; flex-wrap: wrap; align-items: center; max-width: 1180px; margin: 0 auto; width: 100%; }
.foot a { color: var(--muted); text-decoration: none; }
.foot a:hover { color: var(--text); }
.foot .sp { margin-left: auto; font-family: var(--mono); font-size: 12px; }

.nf { text-align: center; }
.nf .code { font-family: var(--mono); font-size: 56px; font-weight: 600; color: var(--accent); line-height: 1; margin: 0; }
.nf h1 { margin: 10px 0 6px; font-size: 20px; }
.nf p { color: var(--muted); margin: 0 0 20px; }

@media (max-width: 520px) {
  .card { padding: 20px; }
  .kv .k { width: 78px; }
  .actions { flex-direction: column; }
}

/* ---------- multi-file list (index) ---------- */
.filelist { list-style: none; margin: 14px 0 0; padding: 0; max-height: 220px; overflow: auto; }
.filelist .frow {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 6px;
  background: var(--surface-2);
  font-size: 13px;
}
.filelist .fname { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.filelist .fsize { font-family: var(--mono); font-size: 11.5px; color: var(--muted); flex: none; }
.filelist .frm {
  flex: none;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
}
.filelist .frm:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- result list (multi) ---------- */
.card.wide { max-width: 640px; }
.copyall { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.copyall .btn { width: auto; margin-top: 0; }
.results { list-style: none; margin: 0; padding: 0; }
.result { padding: 14px 0; border-top: 1px solid var(--line); }
.result .rhead { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.result .rname { font-weight: 600; word-break: break-all; }
.result .rmeta { font-family: var(--mono); font-size: 11.5px; color: var(--muted); margin-left: auto; }
.result .rlink { display: inline-block; margin-top: 8px; font-size: 12.5px; color: var(--accent); text-decoration: none; }
.result .rlink:hover { text-decoration: underline; }

/* ---------- documentation page ---------- */
.doc { max-width: 760px; width: 100%; min-width: 0; margin: 0 auto; padding: 36px 20px 60px; }
.doc h1 { font-size: 26px; letter-spacing: -0.02em; margin: 0 0 10px; }
.doc-lead { color: var(--muted); margin: 0 0 30px; max-width: 62ch; }
.doc-sec { margin-bottom: 36px; }
.doc-sec h2 { font-size: 18px; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.doc-sec h3 { font-size: 14px; margin: 22px 0 8px; color: var(--text); }
.doc-p { color: var(--muted); font-size: 13.5px; margin: 0 0 8px; }
.doc code {
  font-family: var(--mono);
  font-size: 12.5px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--accent);
}
.doc-list { color: var(--muted); font-size: 13.5px; padding-left: 20px; }
.doc-list li { margin-bottom: 6px; }
.doc-cta { margin-top: 10px; }
.doc-cta .btn { width: auto; display: inline-flex; }

pre.code {
  background: #0b0c0e;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
  margin: 0 0 4px;
}
pre.code code {
  background: none;
  border: 0;
  padding: 0;
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.6;
  white-space: pre;
}