/* Talkbox Remote Admin — phase 1 console.
   Plain, high-contrast, system fonts only. No animations, no web fonts,
   no external assets: it must load fast and work on a school Chromebook. */

:root {
  --text: #1a1a1a;
  --text-muted: #444;
  --bg: #f4f4f2;
  --card-bg: #ffffff;
  --border: #767676;
  --border-soft: #c9c9c9;
  --primary: #0b5394;
  --primary-hover: #084273;
  --danger-bg: #fdecea;
  --danger-border: #a50e0e;
  --danger-text: #7a0a0a;
  --ok-bg: #e6f4ea;
  --ok-border: #137333;
  --ok-text: #0d5426;
  --warn-bg: #fef7e0;
  --warn-border: #b06000;
  --warn-text: #6d3c00;
  --focus: #ff8c00;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

/* Visible focus everywhere — keyboard users must always see where they are. */
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* ---------- header / footer ---------- */

.site-header {
  background: var(--card-bg);
  border-bottom: 2px solid var(--border);
}
.site-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}
.site-header h1 {
  font-size: 1.35rem;
  margin: 0;
  flex: 1 1 auto;
}
.session-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.session-device { font-weight: 600; }

.site-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- layout ---------- */

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
}

.layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

/* Comfortable two-column layout on desktop; single column on phones. */
@media (min-width: 900px) {
  .layout {
    grid-template-columns: 3fr 2fr;
    align-items: start;
  }
}

.layout-main, .layout-side { min-width: 0; }
.layout-side { display: grid; gap: 1rem; }

/* ---------- cards ---------- */

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem 1.25rem;
}
.card + .card { margin-top: 1rem; }
.layout .card + .card { margin-top: 0; }

.card h2 {
  font-size: 1.2rem;
  margin: 0 0 0.75rem;
}
.card h3 {
  font-size: 1.05rem;
  margin: 1rem 0 0.4rem;
}

.login-card { max-width: 560px; margin: 1rem auto; }

/* ---------- notices ---------- */

.notice {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin: 0 0 1rem;
  background: var(--card-bg);
}
.notice-error { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger-text); }
.notice-ok    { background: var(--ok-bg);     border-color: var(--ok-border);     color: var(--ok-text); }
.notice-warn  { background: var(--warn-bg);   border-color: var(--warn-border);   color: var(--warn-text); }
.notice p { margin: 0.25rem 0; }

.fine-print, .helper-text {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- forms & buttons (big tap targets) ---------- */

.field { margin-bottom: 1rem; }
.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.field input[type="text"],
.field input[type="password"] {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 0.6rem 0.75rem;
  font: inherit;
  color: var(--text);
  background: #fff;
  border: 2px solid var(--border);
  border-radius: 6px;
}

.btn {
  font: inherit;
  font-weight: 600;
  min-height: 48px;
  padding: 0.55rem 1.1rem;
  border-radius: 6px;
  border: 2px solid var(--border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-secondary:hover { background: #eee; }
.btn-large { width: 100%; }
.btn[disabled], .btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.inline-form { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.inline-form .field-grow { flex: 1 1 200px; }
.inline-form input[type="text"] {
  width: 100%;
  min-height: 48px;
  padding: 0.6rem 0.75rem;
  font: inherit;
  border: 2px solid var(--border);
  border-radius: 6px;
}
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- status ---------- */

dl.status-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1rem;
  margin: 0;
}
dl.status-list dt { font-weight: 600; }
dl.status-list dd { margin: 0; overflow-wrap: anywhere; }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

/* ---------- boards ---------- */

.board-list { list-style: none; margin: 0; padding: 0; }
.board-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 0;
  border-top: 1px solid var(--border-soft);
}
.board-row:first-child { border-top: none; }
.board-info { flex: 1 1 auto; min-width: 0; }
.board-title { font-weight: 600; overflow-wrap: anywhere; }
.board-meta { color: var(--text-muted); font-size: 0.95rem; overflow-wrap: anywhere; }

.visibility {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 0 auto;
}
.visibility input[type="checkbox"] {
  width: 30px;
  height: 30px;
  min-width: 30px;
  margin: 0;
  accent-color: var(--primary);
  cursor: pointer;
}
.visibility input[type="checkbox"][disabled] { cursor: not-allowed; }
.visibility label { font-weight: 600; cursor: pointer; }
.visibility input[type="checkbox"][disabled] + label { cursor: not-allowed; color: var(--text-muted); }

/* ---------- history ---------- */

.history-list { list-style: none; margin: 0; padding: 0; }
.history-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.7rem 0;
  border-top: 1px solid var(--border-soft);
}
.history-row:first-child { border-top: none; }
.history-info { flex: 1 1 180px; min-width: 0; }
.history-version { font-weight: 600; }
.history-meta { color: var(--text-muted); font-size: 0.95rem; }
.badge-current {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid var(--ok-border);
  color: var(--ok-text);
  background: var(--ok-bg);
  border-radius: 999px;
  padding: 0.05rem 0.55rem;
  margin-left: 0.4rem;
  vertical-align: middle;
}