/* Coros Coach — clean, calm light theme, single teal accent. No external assets. */
:root {
  --accent: #14b8a6;
  --accent-600: #0d9488;
  --accent-700: #0f766e;
  --accent-soft: #ccfbf1;
  --bg: #f6f8f9;
  --panel: #ffffff;
  --ink: #10201f;
  --muted: #647581;
  --line: #e6ebee;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --ok: #15803d;
  --ok-soft: #dcfce7;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(16, 32, 31, 0.04), 0 8px 24px rgba(16, 32, 31, 0.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

* { box-sizing: border-box; }

/* Visually hidden, but exposed to screen readers (live regions, speaker prefixes). */
.sr-only,
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-700); text-decoration: none; }
a:hover { text-decoration: underline; }

.boot { padding: 4rem; text-align: center; color: var(--muted); }

/* ---------- App shell ---------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 0.55rem; font-weight: 700; font-size: 1.05rem; }
.brand .logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-700));
  display: grid; place-items: center; color: #fff; font-size: 15px;
}
.nav { display: flex; align-items: center; gap: 0.35rem; margin-left: auto; flex-wrap: wrap; }
.nav a {
  padding: 0.4rem 0.7rem; border-radius: 999px; color: var(--muted); font-weight: 600; font-size: 0.9rem;
}
.nav a:hover { background: var(--accent-soft); color: var(--accent-700); text-decoration: none; }
.nav a.active { background: var(--accent); color: #fff; }
.who { display: flex; align-items: center; gap: 0.5rem; color: var(--muted); font-size: 0.9rem; }
.who strong { color: var(--ink); }

/* ---------- Language switch ---------- */
.lang-switch { display: inline-flex; gap: 0; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: #fff; }
.lang-switch .lang-btn {
  padding: 0.28rem 0.6rem; border: none; background: transparent; font: inherit; font-weight: 700;
  font-size: 0.74rem; letter-spacing: 0.03em; color: var(--muted); cursor: pointer;
}
.lang-switch .lang-btn:hover { background: var(--accent-soft); color: var(--accent-700); }
.lang-switch .lang-btn.active { background: var(--accent); color: #fff; }
.auth-top { display: flex; justify-content: flex-end; margin-bottom: 0.4rem; }

.container { max-width: 960px; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }
.grid { display: grid; gap: 1.1rem; }
@media (min-width: 780px) { .grid.cols-2 { grid-template-columns: 1fr 1fr; } }

/* ---------- Cards ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.15rem 1.25rem;
}
.card h2 { margin: 0 0 0.15rem; font-size: 1.05rem; }
.card .sub { color: var(--muted); font-size: 0.88rem; margin: 0 0 0.9rem; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; flex-wrap: wrap; }

/* ---------- Forms & buttons ---------- */
label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--muted); margin: 0 0 0.3rem; }
.field { margin-bottom: 0.85rem; }
input, select, textarea {
  width: 100%; padding: 0.6rem 0.7rem; font: inherit; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: 10px; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.row > * { flex: 1 1 auto; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  padding: 0.55rem 0.95rem; font: inherit; font-weight: 600; cursor: pointer;
  border-radius: 10px; border: 1px solid transparent; background: var(--accent); color: #fff;
  transition: background 0.15s, opacity 0.15s;
}
.btn:hover { background: var(--accent-600); }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn.ghost { background: transparent; color: var(--accent-700); border-color: var(--line); }
.btn.ghost:hover { background: var(--accent-soft); }
.btn.subtle { background: #eef2f3; color: var(--ink); }
.btn.subtle:hover { background: #e3e9ea; }
.btn.danger { background: transparent; color: var(--danger); border-color: #f3c9c9; }
.btn.danger:hover { background: var(--danger-soft); }
.btn.sm { padding: 0.35rem 0.6rem; font-size: 0.82rem; }

/* ---------- Pills / badges ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 0.25rem; padding: 0.12rem 0.55rem;
  border-radius: 999px; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.01em;
  background: #eef2f3; color: var(--muted); text-transform: capitalize;
}
.pill.self { background: var(--accent-soft); color: var(--accent-700); }
.pill.trainee { background: #e0e7ff; color: #4338ca; }
.pill.shared { background: #fef3c7; color: #92600a; }
.pill.write { background: var(--ok-soft); color: var(--ok); }
.pill.read { background: #eef2f3; color: var(--muted); }
.pill.admin { background: #f3e8ff; color: #7c3aed; }
.pill.trainer { background: #dbeafe; color: #1d4ed8; }
.pill.role-trainee { background: var(--accent-soft); color: var(--accent-700); }
.pill.user { background: #eef2f3; color: var(--muted); }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: #fef3c7; color: #92600a; }

/* ---------- People list ---------- */
.people { display: grid; gap: 0.5rem; }
.person {
  display: flex; align-items: center; gap: 0.6rem; width: 100%; text-align: left;
  padding: 0.6rem 0.7rem; border: 1px solid var(--line); border-radius: 12px; background: #fff; cursor: pointer;
}
.person:hover { border-color: var(--accent); background: #fbfffe; }
.person.active { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.person .meta { min-width: 0; }
.person .meta .nm { font-weight: 600; }
.person .meta .em { color: var(--muted); font-size: 0.8rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.person .badges { margin-left: auto; display: flex; gap: 0.3rem; flex-shrink: 0; }
.avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-700); font-weight: 700; font-size: 0.85rem;
}

/* ---------- Tables ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: 0.86rem; }
th, td { padding: 0.5rem 0.7rem; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--line); }
th:first-child, td:first-child { text-align: left; }
thead th { background: #fafcfc; color: var(--muted); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.03em; position: sticky; top: 0; }
tbody tr:last-child td { border-bottom: none; }
.data-head { display: flex; align-items: baseline; gap: 0.5rem; margin: 0.4rem 0 0.7rem; }
.data-head h3 { margin: 0; font-size: 1rem; }
.data-head .muted { color: var(--muted); font-size: 0.82rem; }

/* ---------- Chat ---------- */
.chat-log { display: flex; flex-direction: column; gap: 0.6rem; max-height: 420px; overflow-y: auto; padding: 0.2rem; margin-bottom: 0.8rem; }
.msg { max-width: 85%; padding: 0.55rem 0.8rem; border-radius: 14px; font-size: 0.92rem; white-space: pre-wrap; word-wrap: break-word; }
.msg.user { align-self: flex-end; background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.msg.bot { align-self: flex-start; background: #f1f5f6; color: var(--ink); border-bottom-left-radius: 4px; }
.msg.err { align-self: flex-start; background: var(--danger-soft); color: var(--danger); }
.chips { display: flex; flex-wrap: wrap; gap: 0.35rem; align-self: flex-start; }
.chip {
  display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.2rem 0.55rem; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent-700); font-size: 0.76rem; font-weight: 600;
}
.chat-form { display: flex; gap: 0.5rem; align-items: flex-end; }
.chat-form .field { flex: 1; margin-bottom: 0; }
.chat-form input { flex: 1; }
.hint { color: var(--muted); font-size: 0.82rem; margin: 0 0 0.7rem; }

/* ---------- Status / notes ---------- */
.note { padding: 0.55rem 0.7rem; border-radius: 10px; font-size: 0.86rem; margin-top: 0.6rem; }
.note.ok { background: var(--ok-soft); color: var(--ok); }
.note.err { background: var(--danger-soft); color: var(--danger); }
.kv { display: flex; flex-wrap: wrap; gap: 0.4rem 1.2rem; margin: 0.2rem 0 0.9rem; font-size: 0.9rem; }
.kv div { color: var(--muted); }
.kv strong { color: var(--ink); font-weight: 600; }
.empty { color: var(--muted); font-size: 0.9rem; padding: 0.6rem 0; }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(255,255,255,0.5); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; }
.btn.ghost .spinner, .btn.subtle .spinner { border-color: var(--line); border-top-color: var(--accent); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Copy field ---------- */
.copyfield { display: flex; gap: 0.5rem; align-items: center; }
.copyfield code { flex: 1; padding: 0.6rem 0.7rem; background: #0f172a; color: #d1fae5; border-radius: 10px; font-size: 0.85rem; overflow-x: auto; }
ol.steps { margin: 0.9rem 0 0; padding-left: 1.2rem; color: var(--muted); }
ol.steps li { margin-bottom: 0.4rem; }
ol.steps strong { color: var(--ink); }

/* ---------- Auth ---------- */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.auth-card { width: 100%; max-width: 400px; }
.auth-brand { display: flex; align-items: center; gap: 0.6rem; justify-content: center; margin-bottom: 1.2rem; font-weight: 700; font-size: 1.3rem; }
.auth-brand .logo { width: 36px; height: 36px; border-radius: 10px; font-size: 18px; }
.tabs { display: flex; gap: 0.3rem; background: #eef2f3; padding: 0.25rem; border-radius: 12px; margin-bottom: 1.1rem; }
.tabs button { flex: 1; padding: 0.5rem; border: none; background: transparent; border-radius: 9px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; }
.tabs button.active { background: #fff; color: var(--ink); box-shadow: var(--shadow); }

/* ---------- Toasts ---------- */
.toasts { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 0.5rem; z-index: 50; }
.toast { padding: 0.6rem 1rem; border-radius: 10px; color: #fff; background: var(--ink); box-shadow: var(--shadow); font-size: 0.88rem; animation: rise 0.2s ease; }
.toast.ok { background: var(--accent-700); }
.toast.err { background: var(--danger); }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }

/* ---------- Admin ---------- */
.admin-sections { display: grid; gap: 1.1rem; }
.link-row { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
.link-row:last-child { border-bottom: none; }
.link-row .arrow { color: var(--muted); }
.link-row .grow { flex: 1; }
.form-inline { display: grid; gap: 0.6rem; grid-template-columns: 1fr; margin-top: 0.9rem; padding-top: 0.9rem; border-top: 1px dashed var(--line); }
@media (min-width: 640px) { .form-inline { grid-template-columns: 2fr 2fr 1fr auto; align-items: end; } }

/* ---------- Add-user form ---------- */
.add-user-form { margin-top: 1rem; padding-top: 1rem; border-top: 1px dashed var(--line); }
.add-user-title { font-weight: 700; font-size: 0.98rem; margin-bottom: 0.7rem; }
.add-user-grid { display: grid; gap: 0.6rem; grid-template-columns: 1fr; }
.add-user-grid .field { margin-bottom: 0; }
@media (min-width: 640px) { .add-user-grid { grid-template-columns: 1fr 1fr; } }
.temp-pass { margin-top: 0.8rem; }
.temp-pass-label { font-weight: 700; margin-bottom: 0.4rem; }
.temp-pass .copyfield code { background: #0f172a; color: #d1fae5; }