:root {
  /* SS13 / TGUI-inspired dark console palette */
  --bg: #0b0e15;
  --bg-2: #10141e;
  --card: #141926;
  --input: #0c1017;
  --chip: #1b2231;
  --line: #232c3d;
  --line-strong: #33405a;
  --text: #cdd7e5;
  --muted: #7e8a9e;
  --accent: #4a9ee0;
  --accent-soft: rgba(74, 158, 224, 0.15);
  --ok: #46c07a;
  --off: #e0594a;
  --warn: #e0a83d;
  --mono: "Consolas", "SFMono-Regular", "DejaVu Sans Mono", "Courier New", monospace;
}
* { box-sizing: border-box; }
/* Author `display:` rules (e.g. .setup-banner{display:flex}) outrank the UA [hidden] rule - force it. */
[hidden] { display: none !important; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, "Segoe UI", sans-serif;
  background: var(--bg);
  background-image: radial-gradient(1200px 600px at 50% -10%, rgba(74, 158, 224, 0.06), transparent 70%);
  color: var(--text);
}
.center { min-height: 100vh; display: grid; place-items: center; gap: 0.75rem; }
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.85rem 1.5rem; background: var(--bg-2);
  border-bottom: 1px solid var(--line-strong); box-shadow: 0 1px 0 var(--accent-soft);
}
h1 { font-family: var(--mono); font-size: 1.2rem; letter-spacing: 0.04em; margin: 0; }
h2 { font-family: var(--mono); font-size: 1.1rem; letter-spacing: 0.02em; }
h3 { font-family: var(--mono); letter-spacing: 0.02em; }
main { max-width: 720px; margin: 1.5rem auto; padding: 0 1rem; display: grid; gap: 1.25rem; }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 0; padding: 1.25rem 1.5rem;
}
.center .card { width: min(360px, 92vw); box-shadow: 0 0 0 1px var(--accent-soft), 0 20px 60px rgba(0, 0, 0, 0.4); }
label { display: block; margin: 0.6rem 0; }
/* Text-ish fields only - checkboxes/radios must not inherit the full-width sizing. */
input:not([type="checkbox"]):not([type="radio"]), select, textarea {
  width: 100%; margin-top: 0.25rem; padding: 0.55rem 0.7rem;
  background: var(--input); border: 1px solid var(--line); border-radius: 0; color: var(--text);
  font: inherit;
}
input[type="checkbox"], input[type="radio"] {
  appearance: none; -webkit-appearance: none;
  width: 14px; height: 14px; margin: 0; padding: 0; flex-shrink: 0; vertical-align: -2px;
  background: var(--input); border: 1px solid var(--line-strong); border-radius: 0;
  display: inline-grid; place-content: center; cursor: pointer;
}
input[type="checkbox"]:checked, input[type="radio"]:checked { background: var(--accent); border-color: var(--accent); }
input[type="checkbox"]:checked::after { content: "✓"; font-size: 11px; font-weight: 700; line-height: 1; color: #04121e; }
input[type="radio"]:checked::after { content: ""; width: 6px; height: 6px; background: #04121e; }
input[type="checkbox"]:focus-visible, input[type="radio"]:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
/* A checkbox + label inside a bordered box - for filters/toggles that sit loose in a toolbar. */
.toggle {
  display: inline-flex; align-items: center; gap: 7px; margin: 0;
  padding: 5px 10px; background: var(--chip); border: 1px solid var(--line);
  color: var(--muted); font-family: var(--mono); font-size: 11.5px; text-transform: uppercase;
  letter-spacing: 0.05em; cursor: pointer; user-select: none; white-space: nowrap;
}
.toggle:hover { border-color: var(--line-strong); color: var(--text); }
.toggle:has(input:checked) { border-color: var(--accent); color: var(--accent); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
/* Chrome/Safari autofill repaints fields bright white - force the dark field back. */
input:-webkit-autofill, input:-webkit-autofill:hover, input:-webkit-autofill:focus, input:-webkit-autofill:active {
  -webkit-text-fill-color: var(--text);
  -webkit-box-shadow: 0 0 0 1000px var(--input) inset;
  box-shadow: 0 0 0 1000px var(--input) inset;
  caret-color: var(--text);
  transition: background-color 9999s ease-in-out 0s;
}
/* The native file-picker button renders light by default. */
input[type="file"]::file-selector-button {
  margin-right: 0.6rem; padding: 0.4rem 0.8rem; background: transparent; color: var(--text);
  border: 1px solid var(--line-strong); border-radius: 0;
  font-family: var(--mono); font-size: 12px; font-weight: 700; cursor: pointer;
}
input[type="file"]::file-selector-button:hover { border-color: var(--accent); color: var(--accent); }
fieldset { border: 1px solid var(--line); border-radius: 0; margin: 0 0 1rem; }
legend { color: var(--muted); padding: 0 0.4rem; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; }
button {
  margin-top: 0.5rem; padding: 0.55rem 1rem; border: 1px solid transparent; border-radius: 0;
  background: var(--accent); color: #04121e; font-family: var(--mono); font-weight: 700; letter-spacing: 0.02em; cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button.ghost { background: transparent; border: 1px solid var(--line-strong); color: var(--text); }
button.ghost:hover { border-color: var(--accent); color: var(--accent); filter: none; }
.muted { color: var(--muted); }
.error { color: var(--off); min-height: 1.2em; }
.ok { color: var(--ok); margin-left: 0.6rem; }
.status-grid { display: grid; gap: 0.35rem; margin-bottom: 1rem; }
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand img { height: 26px; width: auto; max-width: 140px; border-radius: 0; display: block; }
.brand .sub { color: var(--muted); font-size: 12px; font-weight: 400; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.1em; }
a.link { color: var(--muted); text-decoration: none; font-size: 14px; }
a.link:hover { color: var(--accent); }
a.link.active { color: var(--accent); }
a.account-link { display: inline-flex; align-items: center; gap: 0.45rem; }
a.account-link::before { content: ""; width: 15px; height: 15px; border-radius: 50%; background: var(--accent-soft); border: 1px solid var(--line-strong); flex-shrink: 0; }
a.account-link:hover::before, a.account-link.active::before { border-color: var(--accent); }
.setup-banner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem; padding: 0.7rem 1rem; background: var(--accent-soft); border: 1px solid var(--accent); border-radius: 0; font-size: 14px; }
a.btn-link { display: inline-block; padding: 0.3rem 0.8rem; background: var(--accent); color: #04121e; text-decoration: none; border-radius: 0; font-weight: 700; font-size: 13px; font-family: var(--mono); }
a.btn-link:hover { filter: brightness(1.08); }
footer.credit { text-align: center; color: var(--muted); font-size: 12px; font-family: var(--mono); letter-spacing: 0.03em; padding: 1.5rem 1rem 2rem; }
footer.credit a { color: var(--muted); }
.badge { padding: 0.05rem 0.5rem; border-radius: 0; font-size: 0.8rem; font-family: var(--mono); }
.badge.on { background: rgba(70, 192, 122, 0.16); color: var(--ok); }
.badge.off { background: rgba(224, 89, 74, 0.16); color: var(--off); }

/* Unsaved settings: mark the row, and offer to write just that one. */
label.dirty > input, label.dirty > select, label.dirty > textarea { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
label.dirty::after { content: "unsaved"; color: var(--accent); font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; margin-left: 0.4rem; }
button.field-save { font-size: 12px; padding: 0.15rem 0.6rem; margin: -0.3rem 0 0.6rem; }
button:disabled, button:disabled:hover { opacity: 0.45; cursor: default; filter: none; }
.update-detail summary { cursor: pointer; color: var(--muted); font-size: 12px; }
.update-detail pre { max-height: 260px; overflow: auto; background: var(--input); border: 1px solid var(--line); padding: 0.5rem 0.7rem; font-size: 12px; white-space: pre-wrap; word-break: break-word; margin: 0.4rem 0 0; }