:root {
  --bg: #1a1f24;
  --panel: #242b33;
  --ink: #e8eef4;
  --muted: #8b9aab;
  --accent: #3d9cf0;
  --line: #35404c;
  --ok: #3ecf8e;
  --bad: #f06a6a;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100vh;
  font: 16px/1.45 "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #2a3540, var(--bg));
  color: var(--ink);
}
main { max-width: 760px; margin: 0 auto; padding: 1.5rem 1.1rem 3rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .bigid { font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace; }
pre { background: #1c232a; border: 1px solid var(--line); border-radius: 8px; padding: 0.8rem 1rem; overflow-x: auto; font-size: 0.88rem; }
code { color: var(--ink); overflow-wrap: anywhere; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.brand { font: 600 1.35rem/1.2 "IBM Plex Mono", ui-monospace, monospace; letter-spacing: 0.02em; color: var(--ink); }
nav { display: flex; gap: 1rem; flex-wrap: wrap; }
nav a.muted { color: var(--muted); }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 1.25rem; margin-bottom: 1rem; }
.hero h1 { margin: 0 0 0.35rem; font-size: 1.5rem; line-height: 1.25; }
h2 { margin: 0 0 0.75rem; font: 600 1rem/1.3 inherit; color: var(--muted); letter-spacing: 0.02em; }
.sub { color: var(--muted); margin: 0 0 1.2rem; }
.hint { color: var(--muted); font-size: 0.9rem; }
.msg { min-height: 1.3em; color: var(--ok); margin: 0.75rem 0 0; }
.msg.bad, .bad { color: var(--bad); }

button, .btn {
  appearance: none; border: 1px solid var(--line); border-radius: 8px; padding: 0.55rem 1rem;
  background: #2c353f; color: var(--ink); cursor: pointer; font: inherit; display: inline-block;
}
button:hover, .btn:hover { border-color: var(--accent); text-decoration: none; }
.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.primary:hover { filter: brightness(1.08); }
.big { padding: 0.8rem 1.4rem; font-size: 1.05rem; }
.secondary { background: transparent; }
.danger { color: var(--bad); }
.copy { font-size: 0.8rem; padding: 0.3rem 0.6rem; }

label { display: block; color: var(--muted); font-size: 0.9rem; margin: 0.75rem 0; }
label.inline { display: inline; margin: 0; }
input, select {
  display: block; width: 100%; margin-top: 0.3rem; padding: 0.6rem 0.75rem; font: inherit;
  background: #1c232a; color: var(--ink); border: 1px solid var(--line); border-radius: 8px;
}
select { display: inline-block; width: auto; margin: 0; padding: 0.2rem 0.4rem; }
.row { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: end; }
.row input { width: auto; flex: 1 1 140px; margin: 0; }
details.signup { margin-top: 1.5rem; border-top: 1px solid var(--line); padding-top: 1rem; }
summary { cursor: pointer; color: var(--muted); }

.drop {
  border: 2px dashed var(--line); border-radius: 12px; padding: 2.2rem 1rem; text-align: center; cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.drop:hover, .drop.over, .drop:focus { border-color: var(--accent); background: #26313c; outline: none; }
.drop p { margin: 0.25rem 0; }
.uploads { list-style: none; padding: 0; margin: 1rem 0 0; }
.uploads li { display: grid; grid-template-columns: 1fr auto; gap: 0.5rem 1rem; align-items: center; padding: 0.5rem 0; border-top: 1px solid var(--line); }
.uploads .n { overflow-wrap: anywhere; }
.uploads progress { grid-column: 1 / -1; width: 100%; height: 6px; accent-color: var(--accent); }
.uploads .r { display: flex; gap: 0.5rem; align-items: center; }

.list { display: flex; flex-direction: column; }
.item {
  display: grid; grid-template-columns: auto 1fr auto auto; gap: 0.35rem 0.8rem; align-items: center;
  padding: 0.6rem 0; border-top: 1px solid var(--line);
}
.item:first-child { border-top: 0; }
.item .name { overflow-wrap: anywhere; }
.item .hint { grid-column: 2; grid-row: 2; }
.item .bigid { grid-row: 1 / span 2; }
.item .name ~ .hint ~ button { grid-row: 1 / span 2; }
@media (max-width: 560px) {
  .item { grid-template-columns: auto 1fr; }
  .item button { grid-row: 3; grid-column: auto; }
}

.bigid {
  display: inline-block; font-size: 2.4rem; font-weight: 600; letter-spacing: 0.08em; color: var(--ok);
  background: #1c232a; border: 1px solid var(--line); border-radius: 10px; padding: 0.2rem 0.7rem; cursor: pointer;
  user-select: all;
}
.bigid.sm { font-size: 1.05rem; padding: 0.1rem 0.5rem; letter-spacing: 0.06em; }
.idbar { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; margin-bottom: 0.8rem; }
.fname { margin: 0 0 0.5rem; font-size: 1.2rem; overflow-wrap: anywhere; }
.meta { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0 0 1rem; }
.pill { background: #1c232a; border: 1px solid var(--line); border-radius: 999px; padding: 0.1rem 0.6rem; font-size: 0.82rem; color: var(--muted); }
.actions { margin: 0 0 1rem; }
.preview { display: block; max-width: 100%; border-radius: 8px; border: 1px solid var(--line); margin: 0 0 1rem; }
.preview.pdf { width: 100%; height: 70vh; background: #fff; }
.preview.text { max-height: 60vh; overflow: auto; white-space: pre-wrap; }

footer { margin-top: 2rem; color: var(--muted); font-size: 0.8rem; text-align: center; }