:root {
  --bg: #0b0e13;
  --panel: #171d27;
  --panel-2: #1e2531;
  --line: #2a3341;
  --text: #e7ecf3;
  --muted: #8b97a8;
  --accent: #4cc2ff;
  --ok: #46d18a;
  --warn: #f0b849;
  --bad: #ff6b6b;
  --radius: 12px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

#login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
main { max-width: 920px; margin: 0 auto; padding: 24px 16px 48px; }

header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
header h1 { margin: 0; font-size: 22px; flex: 1; }
h1 { margin: 0 0 4px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.card.narrow { width: 100%; max-width: 380px; }

label { display: block; margin: 14px 0 6px; color: var(--muted); font-size: 14px; }
label.inline { display: inline-flex; align-items: center; gap: 6px; margin: 0; color: var(--text); }

input[type=text], input[type=password], input[type=number], textarea {
  width: 100%;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
}
input[type=number] { width: 130px; }
select {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
}
.hint { font-size: 13px; margin: 8px 0 0; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

textarea {
  display: block;
  min-height: 420px;
  margin: 12px 0;
  resize: vertical;
  font: 13px/1.5 ui-monospace, "SF Mono", Menlo, monospace;
}

.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.row.between { justify-content: space-between; margin-top: 0; }
.row input[type=text] { flex: 1; min-width: 200px; }
.spacer { flex: 1; }

.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 16px;
  font: inherit;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { background: var(--accent); color: #04121c; border-color: var(--accent); font-weight: 600; }
.btn.ghost { background: none; }
.btn.wide { width: 100%; margin-top: 20px; }

.muted { color: var(--muted); }
.error { color: var(--bad); margin-top: 12px; }
.warn { color: var(--warn); margin-top: 12px; font-size: 14px; }

.bar { height: 8px; background: var(--panel-2); border-radius: 4px; overflow: hidden; margin-top: 12px; }
#bar-fill { height: 100%; width: 0; background: var(--accent); transition: width .3s; }
.bar.indeterminate #bar-fill { width: 30%; animation: slide 1.2s infinite ease-in-out; }
@keyframes slide { from { margin-left: -30%; } to { margin-left: 100%; } }

#chunks { padding-left: 22px; margin: 12px 0 0; }
#chunks li { margin: 6px 0; }
#chunks li .btn { padding: 4px 10px; margin-left: 8px; font-size: 13px; vertical-align: middle; }
@media (max-width: 480px) {
  /* Sur mobile, le bouton passe toujours sous le libellé : alignement régulier. */
  #chunks li .btn { display: block; margin: 4px 0 0; }
}