/* Neutral Teams-native styling: the tab lives inside a client's tenant, so it
   follows the Teams theme rather than imposing BITS brand colours. */
:root {
  --bg: #ffffff;
  --bg-subtle: #f5f5f5;
  --fg: #242424;
  --fg-muted: #616161;
  --border: #d1d1d1;
  --accent: #5b5fc7;
  --accent-fg: #ffffff;
  --accent-hover: #4f52b2;
  --danger: #c4314b;
  --radius: 6px;
  --font: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
}

:root[data-theme="dark"] {
  --bg: #1f1f1f;
  --bg-subtle: #292929;
  --fg: #ffffff;
  --fg-muted: #adadad;
  --border: #3d3d3d;
  --accent: #7f85f5;
  --accent-fg: #1f1f1f;
  --accent-hover: #9299f7;
}

:root[data-theme="contrast"] {
  --bg: #000000;
  --bg-subtle: #000000;
  --fg: #ffffff;
  --fg-muted: #ffffff;
  --border: #ffffff;
  --accent: #ffff01;
  --accent-fg: #000000;
  --accent-hover: #ffff01;
}

* { box-sizing: border-box; }

/* Beats the display:grid rules below, which would otherwise defeat [hidden]. */
[hidden] { display: none !important; }

body {
  margin: 0;
  padding: 16px;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.45;
  color: var(--fg);
  background: var(--bg);
}

.shell { max-width: 760px; margin: 0 auto; display: grid; gap: 16px; }

.shell__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

h1 { font-size: 18px; margin: 0 0 2px; font-weight: 600; }
h2 { font-size: 14px; margin: 0 0 8px; font-weight: 600; }
p { margin: 0; }
.muted { color: var(--fg-muted); font-size: 12px; }
.eyebrow {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 2px;
}

.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background: var(--bg);
  display: grid;
  gap: 14px;
}

.field { display: grid; gap: 4px; }
.field label { font-size: 12px; font-weight: 600; color: var(--fg-muted); }

input, select {
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 7px 9px;
  width: 100%;
}

select[size] { padding: 4px; }
select[size] option { padding: 5px 6px; border-radius: 4px; }

input:focus-visible, select:focus-visible, .btn:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.err-msg { display: none; font-size: 12px; color: var(--danger); margin: 0; }
.field.has-error input { border-color: var(--danger); }
.field.has-error .err-msg { display: block; }

.summary { display: grid; gap: 4px; font-size: 14px; }
.summary div { display: flex; gap: 8px; }
.summary b { min-width: 22px; color: #444444; }
.summary .summary__name { font-weight: 700; font-size: 16px; display: block; }
.summary .summary__role { color: #555555; display: block; margin-bottom: 6px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; }

.btn {
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-subtle);
  color: var(--fg);
  padding: 8px 14px;
}
.btn:hover:not(:disabled) { border-color: var(--fg-muted); }
.btn--primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn--primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn--ghost { background: transparent; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.adjust { border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; }
.adjust summary { cursor: pointer; font-weight: 600; font-size: 13px; }
.adjust > *:not(summary) { margin-top: 10px; }

.preview {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background: #ffffff;
  color: #000000;
  overflow-x: auto;
}

.source {
  margin: 0;
  padding: 10px;
  background: var(--bg-subtle);
  border-radius: var(--radius);
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 260px;
  overflow: auto;
}

.status { font-size: 13px; color: var(--fg-muted); min-height: 20px; }
.status[data-tone="error"] { color: var(--danger); font-weight: 600; }
.status[data-tone="success"] { color: var(--fg); font-weight: 600; }

.offscreen { position: absolute; left: -9999px; top: 0; width: 1px; height: 1px; overflow: hidden; }