/* ==========================================================================
   XP Arena · EKEB design system (neon / cyber, по мотивам ekeb.edu.kz)
   Слои: 1) токены  2) база и фон  3) app shell  4) компоненты  5) легаси-ремап
   ========================================================================== */

/* 1. Токены ---------------------------------------------------------------- */
:root {
  --xa-bg-0: #05070f;
  --xa-bg-1: #0a0e1a;
  --xa-bg-2: #0f1528;
  --xa-bg-3: #0d1326;
  --xa-cyan: #00f0ff;
  --xa-violet: #7b61ff;
  --xa-pink: #ff2d95;
  --xa-green: #39ff14;
  --xa-gold: #ffd700;
  --xa-silver: #cfd8ea;
  --xa-bronze: #e09a5a;
  --xa-violet-2: #9d8bff;
  --xa-violet-3: #b4a2ff;
  --xa-text: #e8eefc;
  --xa-muted: #b3c0d8;
  --xa-muted-2: #9fb0cc;
  --xa-border: rgba(0, 240, 255, 0.2);
  --xa-border-soft: rgba(157, 139, 255, 0.18);
  --xa-line: rgba(232, 238, 252, 0.08);
  --xa-glass: rgba(13, 19, 40, 0.68);
  --xa-glass-solid: rgba(13, 19, 40, 0.92);
  --xa-glass-hi: rgba(20, 28, 56, 0.78);
  --xa-glow: 0 0 20px rgba(0, 240, 255, 0.35), 0 0 60px rgba(123, 97, 255, 0.15);
  --xa-glow-sm: 0 0 12px rgba(0, 240, 255, 0.28);
  --xa-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --xa-grad: linear-gradient(135deg, #00f0ff, #7b61ff);
  --xa-grad-hot: linear-gradient(135deg, #ff2d95, #7b61ff);
  --xa-grad-text: linear-gradient(90deg, #fff, #00f0ff 55%, #7b61ff);
  --xa-grad-bar: linear-gradient(90deg, #00f0ff, #7b61ff 70%, #ff2d95);
  --xa-r-sm: 10px;
  --xa-r: 14px;
  --xa-r-lg: 18px;
  --xa-pill: 999px;
  --xa-header-h: 56px;
  --xa-tabbar-h: 62px;
  --xa-side-w: 236px;
  --xa-font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --xa-font-display: "Orbitron", "Inter", system-ui, sans-serif;
  --xa-font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --xa-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* 2. База и фон ------------------------------------------------------------ */
html:has(body.xa) { height: 100%; background: var(--xa-bg-0); }
body.xa {
  /* ремап легаси-переменных main.css → палитра колледжа */
  --bg: var(--xa-bg-1);
  --bg-card: var(--xa-glass);
  --bg-elevated: var(--xa-bg-2);
  --text: var(--xa-text);
  --text-muted: var(--xa-muted);
  --accent-yellow: var(--xa-gold);
  --accent-blue: var(--xa-cyan);
  --accent-green: var(--xa-green);
  --accent-red: #ff4d6d;
  --border: var(--xa-border-soft);
  --radius: var(--xa-r);
  --radius-sm: var(--xa-r-sm);
  --purple-deep: #1a1440;
  --purple-mid: var(--xa-violet);
  --gold: var(--xa-gold);

  margin: 0;
  height: 100vh;
  height: 100dvh;
  min-height: 0 !important;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 0 !important;
  color: var(--xa-text);
  font-family: var(--xa-font);
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(900px 560px at 8% -8%, rgba(0, 240, 255, 0.13), transparent 62%),
    radial-gradient(820px 620px at 108% 4%, rgba(123, 97, 255, 0.18), transparent 60%),
    radial-gradient(700px 520px at 50% 118%, rgba(255, 45, 149, 0.08), transparent 60%),
    linear-gradient(180deg, var(--xa-bg-0), var(--xa-bg-1) 60%, var(--xa-bg-0)) !important;
  background-attachment: fixed !important;
}
body.xa::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 80%);
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 80%);
}
body.xa ::selection { background: rgba(0, 240, 255, 0.35); color: #fff; }
body.xa a { color: var(--xa-cyan); }
body.xa :focus-visible { outline: 2px solid var(--xa-cyan); outline-offset: 2px; }
body.xa * { scrollbar-width: thin; scrollbar-color: rgba(0, 240, 255, 0.35) transparent; }
body.xa *::-webkit-scrollbar { width: 8px; height: 8px; }
body.xa *::-webkit-scrollbar-thumb { background: rgba(0, 240, 255, 0.28); border-radius: 8px; }
body.xa *::-webkit-scrollbar-track { background: transparent; }

.xa-h, body.xa .xa-grad-text {
  font-family: var(--xa-font-display);
  font-weight: 800;
  letter-spacing: 0.04em;
  background: var(--xa-grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.xa-label {
  font-family: var(--xa-font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--xa-cyan);
  opacity: 0.9;
}
.xa-muted { color: var(--xa-muted); }
.xa-num { font-family: var(--xa-font-display); font-variant-numeric: tabular-nums; }

/* 3. App shell ------------------------------------------------------------- */
.xa-header {
  position: relative;
  z-index: 60;
  flex: 0 0 var(--xa-header-h);
  height: var(--xa-header-h);
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 18px;
  padding-top: env(safe-area-inset-top);
  box-sizing: content-box;
  background: rgba(5, 7, 15, 0.72);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--xa-border);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
.xa-header::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.7), rgba(123, 97, 255, 0.7), transparent);
  opacity: 0.6;
}
.xa-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex: 0 0 auto; }
.xa-brand__logo {
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center;
  background: radial-gradient(circle at 35% 30%, #fff, #e8eefc 70%);
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.5), var(--xa-glow-sm);
}
.xa-brand__logo img { width: 30px; height: 30px; display: block; }
.xa-brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.xa-brand__word {
  font-family: var(--xa-font-display); font-weight: 900; font-size: 16px; letter-spacing: 0.12em;
  background: var(--xa-grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.xa-brand__sub { font-family: var(--xa-font-mono); font-size: 9.5px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--xa-muted-2); }

.xa-nav { display: flex; align-items: center; gap: 4px; flex: 1 1 auto; justify-content: center; min-width: 0; }
.xa-nav__link {
  display: inline-flex; align-items: center; gap: 7px;
  height: 36px; padding: 0 14px; border-radius: var(--xa-pill);
  color: var(--xa-muted) !important; text-decoration: none; font-weight: 600; font-size: 13.5px;
  border: 1px solid transparent;
  transition: color .2s, background .2s, border-color .2s;
  white-space: nowrap;
}
.xa-nav__link:hover { color: #fff !important; background: rgba(0, 240, 255, 0.07); }
.xa-nav__link.is-active {
  color: #fff !important;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.18), rgba(123, 97, 255, 0.22));
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: inset 0 0 12px rgba(0, 240, 255, 0.12), 0 0 14px rgba(0, 240, 255, 0.15);
}
.xa-nav__link .xa-ic { width: 17px; height: 17px; }
.xa-ic { width: 20px; height: 20px; flex: 0 0 auto; }

.xa-header__right { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; margin-left: auto; }
.xa-chip {
  display: inline-flex; align-items: center; gap: 9px;
  height: 40px; padding: 0 12px 0 4px; border-radius: var(--xa-pill);
  background: rgba(13, 19, 40, 0.8); border: 1px solid var(--xa-border);
  color: var(--xa-text) !important; text-decoration: none;
}
.xa-chip__av {
  width: 32px; height: 32px; border-radius: 50%; overflow: hidden; display: grid; place-items: center;
  background: var(--xa-grad); color: #05070f; font-weight: 800;
  box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.4);
}
.xa-chip__av img { width: 100%; height: 100%; object-fit: cover; }
.xa-chip--staff .xa-chip__av { background: rgba(0, 240, 255, 0.12); color: var(--xa-cyan); }
.xa-chip__meta { display: flex; flex-direction: column; line-height: 1.1; }
.xa-chip__lvl { font-family: var(--xa-font-mono); font-size: 10px; letter-spacing: 0.16em; color: var(--xa-cyan); text-transform: uppercase; }
.xa-chip__xp { font-family: var(--xa-font-display); font-size: 12.5px; font-weight: 700; max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xa-chip__coin { display: inline-flex; align-items: center; gap: 4px; font-weight: 700; font-size: 12.5px; color: var(--xa-gold); padding-left: 8px; border-left: 1px solid var(--xa-line); }
.xa-logout { margin: 0; display: inline; }
.xa-iconbtn {
  width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%;
  background: transparent; border: 1px solid var(--xa-border-soft); color: var(--xa-muted); cursor: pointer;
  padding: 0; transition: color .2s, border-color .2s, box-shadow .2s;
}
.xa-iconbtn:hover { color: #fff; border-color: var(--xa-cyan); box-shadow: var(--xa-glow-sm); }

.xa-body { position: relative; z-index: 1; flex: 1 1 auto; min-height: 0; display: flex; }
.xa-main {
  flex: 1 1 auto; min-width: 0; min-height: 0;
  overflow-x: hidden; overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scroll-padding-top: 12px;
}
/* легаси <main> внутри оболочки не должен растягиваться на 100vh */
.xa-main > main, .xa-main > .xa-page { min-height: 0 !important; }
body.xa .xa-main > main { padding-bottom: 24px; }

.xa-side {
  flex: 0 0 var(--xa-side-w);
  overflow-y: auto;
  padding: 18px 12px;
  border-right: 1px solid var(--xa-border-soft);
  background: linear-gradient(180deg, rgba(10, 14, 26, 0.75), rgba(5, 7, 15, 0.6));
}
.xa-side__label { margin: 14px 10px 8px; font-family: var(--xa-font-mono); font-size: 10.5px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--xa-muted-2); }
.xa-side__label:first-child { margin-top: 0; }
.xa-side__link {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; margin: 2px 0; border-radius: 12px;
  color: var(--xa-muted) !important; text-decoration: none; font-weight: 600; font-size: 14px;
  border: 1px solid transparent; transition: background .2s, color .2s, border-color .2s;
}
.xa-side__link .xa-ic { width: 18px; height: 18px; opacity: .85; }
.xa-side__link:hover { background: rgba(0, 240, 255, 0.06); color: #fff !important; }
.xa-side__link.is-active { color: #fff !important; background: linear-gradient(135deg, rgba(0, 240, 255, 0.16), rgba(123, 97, 255, 0.2)); border-color: rgba(0, 240, 255, 0.35); }
.xa-side__link.is-active .xa-ic { color: var(--xa-cyan); opacity: 1; }

.xa-tabbar { display: none; }

@media (max-width: 1100px) {
  .xa-nav__link { padding: 0 10px; }
  .xa-nav__link span { display: none; }
  .xa-nav__link .xa-ic { width: 19px; height: 19px; }
  .xa-brand__sub { display: none; }
}
@media (max-width: 860px) {
  :root { --xa-header-h: 54px; }
  .xa-header { padding: 0 12px; padding-top: env(safe-area-inset-top); gap: 10px; }
  .xa-chip__meta { display: none; }
  .xa-chip { padding-right: 10px; }
  body.xa.xa-has-tabbar .xa-nav { display: none; }
  .xa-tabbar {
    position: relative; z-index: 60;
    display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
    flex: 0 0 auto;
    height: var(--xa-tabbar-h);
    padding-bottom: env(safe-area-inset-bottom);
    box-sizing: content-box;
    background: rgba(5, 7, 15, 0.86);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--xa-border);
  }
  .xa-tabbar a {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
    color: var(--xa-muted-2) !important; text-decoration: none; font-size: 10.5px; font-weight: 600; letter-spacing: .02em;
    position: relative;
  }
  .xa-tabbar a .xa-ic { width: 22px; height: 22px; }
  .xa-tabbar a.is-active { color: #fff !important; }
  .xa-tabbar a.is-active .xa-ic { color: var(--xa-cyan); filter: drop-shadow(0 0 6px rgba(0, 240, 255, .7)); }
  .xa-tabbar a.is-active::before {
    content: ""; position: absolute; top: 0; left: 28%; right: 28%; height: 2px; border-radius: 2px;
    background: var(--xa-grad); box-shadow: var(--xa-glow-sm);
  }
  /* staff: сайдбар → горизонтальная полоса */
  .xa-body--staff { flex-direction: column; }
  .xa-side {
    flex: 0 0 auto; display: flex; gap: 6px; overflow-x: auto; overflow-y: hidden;
    padding: 8px 10px; border-right: 0; border-bottom: 1px solid var(--xa-border-soft);
    scrollbar-width: none;
  }
  .xa-side::-webkit-scrollbar { display: none; }
  .xa-side__label { display: none; }
  .xa-side__link { flex: 0 0 auto; padding: 7px 12px; margin: 0; font-size: 13px; border-radius: var(--xa-pill); border-color: var(--xa-border-soft); }
}
@media (max-width: 420px) {
  .xa-brand__word { font-size: 14px; }
  .xa-chip__coin { display: none; }
}

/* 4. Компоненты ------------------------------------------------------------ */
.xa-card {
  background: var(--xa-glass);
  border: 1px solid var(--xa-border-soft);
  border-radius: var(--xa-r);
  box-shadow: var(--xa-shadow);
}
.xa-card--glow { border-color: var(--xa-border); box-shadow: var(--xa-shadow), inset 0 0 0 1px rgba(0, 240, 255, 0.04), 0 0 40px rgba(0, 240, 255, 0.06); }
.xa-btn, body.xa .xa-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 22px; border-radius: var(--xa-pill); border: 0; cursor: pointer;
  background: var(--xa-grad); color: #05070f !important; text-decoration: none;
  font-family: var(--xa-font); font-weight: 800; font-size: 13.5px; letter-spacing: 0.1em; text-transform: uppercase;
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.35), 0 8px 24px rgba(123, 97, 255, 0.25);
  transition: transform .15s var(--xa-ease), box-shadow .2s, filter .2s;
}
.xa-btn:hover { filter: brightness(1.08); box-shadow: 0 0 26px rgba(0, 240, 255, 0.5), 0 10px 30px rgba(123, 97, 255, 0.35); }
.xa-btn:active { transform: translateY(1px) scale(.99); }
.xa-btn--sm { min-height: 36px; padding: 0 16px; font-size: 12px; }
.xa-btn--ghost, body.xa .xa-btn--ghost {
  background: transparent; color: var(--xa-cyan) !important; border: 1px solid rgba(0, 240, 255, 0.55); box-shadow: none;
}
.xa-btn--ghost:hover { background: rgba(0, 240, 255, 0.08); box-shadow: var(--xa-glow-sm); }
.xa-seg {
  display: inline-flex; gap: 4px; padding: 4px; border-radius: var(--xa-pill);
  background: rgba(5, 7, 15, 0.6); border: 1px solid var(--xa-border-soft);
}
.xa-seg > button, .xa-seg > a {
  height: 32px; padding: 0 14px; border-radius: var(--xa-pill); border: 0; cursor: pointer;
  background: transparent; color: var(--xa-muted); font: 600 13px var(--xa-font); white-space: nowrap; text-decoration: none;
  display: inline-flex; align-items: center;
  transition: color .2s, background .2s;
}
.xa-seg > button:hover { color: #fff; }
.xa-seg > .is-active { color: #05070f; background: var(--xa-grad); box-shadow: 0 0 14px rgba(0, 240, 255, .35); font-weight: 800; }

/* 5. Легаси-ремап: общие элементы страниц преподавателя/админа ------------- */
body.xa .app-header { display: none !important; }
body.xa.xa-staff .xa-main > main {
  max-width: 1180px; margin: 0 auto; padding: 22px 26px 32px !important;
}
body.xa.xa-staff main h1 {
  margin: 0 0 14px; font-family: var(--xa-font-display); font-weight: 800; font-size: 26px; letter-spacing: .04em;
  background: var(--xa-grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
body.xa.xa-staff main h2, body.xa.xa-staff main h3 { font-family: var(--xa-font-display); letter-spacing: .04em; color: #fff; font-weight: 700; font-size: 16px; }
body.xa.xa-staff main h2 a { font-family: var(--xa-font); font-size: 13px; letter-spacing: 0; }
body.xa.xa-staff main ul { line-height: 1.8; }
body.xa.xa-staff main p { color: var(--xa-muted); }
body.xa.xa-staff main p strong { color: #fff; }
body.xa.xa-staff .card, body.xa.xa-staff main > section, body.xa.xa-staff main form.card {
  background: var(--xa-glass);
  border: 1px solid var(--xa-border-soft);
  border-radius: var(--xa-r);
  box-shadow: var(--xa-shadow);
  padding: 16px 18px;
  margin: 0 0 16px;
}
body.xa.xa-staff main section section { background: transparent; border: 0; box-shadow: none; padding: 0; }
body.xa:not(.login-page) main input[type="text"], body.xa:not(.login-page) main input[type="password"], body.xa:not(.login-page) main input[type="number"],
body.xa:not(.login-page) main input[type="search"], body.xa:not(.login-page) main input[type="file"], body.xa:not(.login-page) main select, body.xa:not(.login-page) main textarea,
body.xa:not(.login-page) main input:not([type]) {
  background: rgba(5, 7, 15, 0.65) !important;
  border: 1px solid rgba(157, 139, 255, 0.28) !important;
  color: var(--xa-text) !important;
  border-radius: 10px !important;
  font: 500 14px var(--xa-font);
  padding: 9px 12px;
  min-height: 40px;
  box-sizing: border-box;
  transition: border-color .2s, box-shadow .2s;
}
body.xa:not(.login-page) main input:focus, body.xa:not(.login-page) main select:focus, body.xa:not(.login-page) main textarea:focus {
  outline: none; border-color: var(--xa-cyan) !important; box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
}
body.xa:not(.login-page) main input::placeholder, body.xa:not(.login-page) main textarea::placeholder { color: rgba(179, 192, 216, 0.55); }
body.xa main select option { background: var(--xa-bg-2); color: var(--xa-text); }
body.xa.xa-staff main button, body.xa.xa-staff main input[type="submit"] {
  min-height: 38px; padding: 0 16px; border-radius: var(--xa-pill); border: 0; cursor: pointer;
  background: var(--xa-grad); color: #05070f; font: 800 12.5px var(--xa-font); letter-spacing: .06em; text-transform: uppercase;
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
}
body.xa.xa-staff main button:hover { filter: brightness(1.08); }
body.xa.xa-staff main .btn-ghost, body.xa.xa-staff main button.btn-ghost {
  background: transparent; color: var(--xa-cyan); border: 1px solid rgba(0, 240, 255, 0.5); box-shadow: none;
}
body.xa.xa-staff main form[action*="delete"] button, body.xa.xa-staff main button.danger, body.xa.xa-staff main .btn-danger {
  background: transparent; color: #ff6b8f; border: 1px solid rgba(255, 45, 149, 0.55); box-shadow: none;
}
body.xa.xa-staff main form[action*="reset"] button[type="submit"], body.xa.xa-staff main form[action*="clear"] button[type="submit"] {
  background: rgba(255, 45, 149, 0.1); color: #ff9cc0; border: 1px solid rgba(255, 45, 149, 0.45); box-shadow: none; text-align: left; justify-content: flex-start; width: 100%;
}
body.xa .ok, body.xa p.ok { color: var(--xa-green) !important; background: rgba(57, 255, 20, 0.07); border: 1px solid rgba(57, 255, 20, 0.3); padding: 10px 14px; border-radius: 12px; }
body.xa .error, body.xa p.error { color: #ff8fab !important; background: rgba(255, 45, 149, 0.08); border: 1px solid rgba(255, 45, 149, 0.35); padding: 10px 14px; border-radius: 12px; }

/* таблицы */
body.xa.xa-staff main table {
  width: 100%; border-collapse: separate; border-spacing: 0; font-size: 14px;
  background: transparent;
}
body.xa.xa-staff main table th {
  position: sticky; top: 0; z-index: 2;
  background: rgba(10, 14, 26, 0.96);
  color: var(--xa-muted-2); font: 600 11px var(--xa-font-mono); letter-spacing: .14em; text-transform: uppercase; text-align: left;
  padding: 10px 10px; border-bottom: 1px solid var(--xa-border);
}
body.xa.xa-staff main table td { padding: 8px 10px; border-bottom: 1px solid var(--xa-line); color: var(--xa-text); vertical-align: middle; }
body.xa.xa-staff main table tbody tr:nth-child(even) td { background: rgba(255, 255, 255, 0.018); }
body.xa.xa-staff main table tbody tr:hover td { background: rgba(0, 240, 255, 0.05); }
body.xa.xa-staff main table a { color: var(--xa-text); text-decoration: none; font-weight: 600; }
body.xa.xa-staff main table a:hover { color: var(--xa-cyan); }

/* Сайты со своими «назад»-кнопками: навигацию уже даёт шапка */
body.xa .lb-back-btn, body.xa .s3-store-back, body.xa .arena-dock { display: none !important; }

/* ================= Staff pages: app layouts ================= */
.xa-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin: 6px 0 16px; max-width: 760px; }
.xa-stat {
  background: var(--xa-glass); border: 1px solid var(--xa-border); border-radius: 14px;
  padding: 12px 16px; display: flex; flex-direction: column; gap: 4px;
}
.xa-stat__label { font: 600 10px/1 var(--xa-font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--xa-muted-2); }
.xa-stat__val { font: 800 26px/1.1 var(--xa-font-display); color: var(--xa-text); text-shadow: 0 0 18px rgba(0,240,255,.35); }
ul.xa-tiles { list-style: none; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px; }
ul.xa-tiles li { margin: 0; }
ul.xa-tiles a {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: 14px;
  background: var(--xa-glass); border: 1px solid var(--xa-border); color: var(--xa-text);
  text-decoration: none; font-weight: 600; transition: border-color .15s, box-shadow .15s, transform .15s;
}
ul.xa-tiles a svg { width: 22px; height: 22px; color: var(--xa-cyan); flex: none; }
ul.xa-tiles a:hover { border-color: var(--xa-cyan); box-shadow: var(--xa-glow); transform: translateY(-1px); }
.xa-danger {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 10px;
  padding: 14px; border-radius: 14px; border: 1px solid rgba(255,45,149,.3); background: rgba(255,45,149,.05);
}
.xa-danger .xa-label { grid-column: 1 / -1; color: var(--xa-pink); margin: 0; }
.xa-danger form, .xa-danger button { width: 100%; margin: 0; }
ul.xa-chiplist { list-style: none; padding: 0; margin: 14px 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 8px; }
ul.xa-chiplist li {
  display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 0;
  padding: 8px 8px 8px 14px; border-radius: 12px; background: var(--xa-glass); border: 1px solid var(--xa-border);
  font-family: var(--xa-font-display); font-weight: 700; font-size: 13px; letter-spacing: .04em;
}
ul.xa-chiplist li button { padding: 5px 10px !important; font-size: 10px !important; }

/* long tables scroll inside their own panel (sticky header) */
body.xa.xa-staff .students-wrap {
  max-height: calc(100dvh - var(--xa-header-h) - 170px);
  overflow: auto; border: 1px solid var(--xa-border); border-radius: 12px;
}
body.xa.xa-staff .students-wrap table { margin: 0; }
body.xa.xa-staff .students-wrap thead th { position: sticky; top: 0; z-index: 2; background: #0d1326; }

/* teacher: leaderboard on the side, XP table fills the height */
.teacher-page .xa-duel-msg { margin: 6px 0 8px; min-height: 1.25em; color: var(--xa-green); }
.teacher-page .xa-hint { margin: 0 0 8px; font-size: .85em; color: var(--xa-muted-2); }
.teacher-page .xa-sel-count { color: var(--xa-muted); }
@media (min-width: 1024px) {
  body.xa.teacher-page:not(.admin-page) .xa-main { overflow: hidden; }
  body.xa.teacher-page:not(.admin-page) .xa-main > main {
    height: 100%; max-width: none; display: grid; gap: 16px;
    grid-template-columns: minmax(0, 1fr) 300px; grid-template-rows: minmax(0, 1fr);
  }
  body.xa.teacher-page:not(.admin-page) main > .xa-xp-card {
    grid-column: 1; grid-row: 1; margin: 0; min-height: 0; display: flex; flex-direction: column;
  }
  body.xa.teacher-page:not(.admin-page) main > .xa-xp-card .students-wrap { flex: 1 1 auto; min-height: 0; max-height: none; }
  body.xa.teacher-page:not(.admin-page) main > .leaderboard-mini { grid-column: 2; grid-row: 1; margin: 0; overflow: auto; min-height: 0; }
}
.teacher-page .leaderboard-mini ol { padding-left: 1.4em; margin: 8px 0 0; }
.teacher-page .leaderboard-mini li { padding: 6px 0; border-bottom: 1px dashed rgba(0,240,255,.12); font-size: 13.5px; }
.teacher-page .leaderboard-mini li::marker { color: var(--xa-cyan); font-family: var(--xa-font-display); font-weight: 700; }
.teacher-page .leaderboard-mini li strong { color: var(--xa-gold); }
.teacher-page .leaderboard-mini h2 { font-size: 15px !important; }
.teacher-page .xp-actions { display: flex; flex-wrap: nowrap; gap: 6px; align-items: center; }
.teacher-page .xp-actions .xp-custom { width: 64px; }
.teacher-page .xp-actions .xp-reason { width: 130px; }
.teacher-page .students td { white-space: nowrap; }
.teacher-page .students td:nth-child(3) { white-space: normal; min-width: 180px; }
@media (max-width: 860px) {
  body.xa.xa-staff .xa-nav { display: none; }
  .xa-header { flex-wrap: nowrap; }
  .xa-header__right { flex-wrap: nowrap; margin-left: auto; }
}
@media (max-width: 420px) {
  .xa-chip--staff .xa-chip__meta, .xa-chip--staff > span:not(.xa-chip__av) { display: none; }
}