/* ========================================================================
   Zayacchess — UI
   Палитра: брендовый красный + тёплый кремовый фон.
   Доска: деревянный walnut/maple, фигуры — из app/static/img/chesspieces/zayac.
   ======================================================================== */

:root {
  --accent: #a72836;
  --accent-hover: #7a1c27;
  --accent-soft: #c94250;
  --bg: #fbf7f4;
  --card: #ffffff;
  --border-soft: #ece0dc;
  --text: #2a1e1f;
  --muted: #8a6a6d;
  --ok: #3fa95a;
  --ok-soft: #e6f5eb;
  --fail: #d93b4a;
  --fail-soft: #fde8ea;

  /* Доска: светлые нейтрально-серые клетки */
  --board-light: #ece8e2;
  --board-light-2: #e4e0d9;
  --board-dark: #8a857c;
  --board-dark-2: #7b7671;
  --board-frame: #8a5e37;
  --board-frame-2: #6b4424;
  --board-label: #fdf5e8;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(42, 30, 31, .06);
  --shadow: 0 4px 14px rgba(42, 30, 31, .08);
  --shadow-lg: 0 10px 28px rgba(42, 30, 31, .12);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  font-family: 'Manrope', -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

/* ---- Header ---- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--accent);
  color: #fff;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  box-shadow: 0 2px 10px rgba(167, 40, 54, .18);
  flex-wrap: wrap;
}
header a.brand {
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -.01em;
  font-size: 1.15rem;
}
header a.brand .brand-logo { height: 30px; width: 30px; object-fit: contain; }
header .user-info { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; font-size: .9rem; }
header .user-info b { font-weight: 700; }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

h1 {
  margin: 8px 0 6px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(1.5rem, 3.5vw, 2rem);
}
.subtitle { color: var(--muted); margin: 0 0 20px; font-size: .95rem; }

/* ---- Темы задачи / подкатегории: крупные пилюли-бейджи ---- */
.themes-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 6px 0 22px;
}
.themes-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-right: 2px;
}
.theme-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: .005em;
  line-height: 1.2;
  box-shadow: 0 2px 6px rgba(167, 40, 54, .22);
}
.theme-pill.ghost {
  background: #fff;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  box-shadow: none;
}
@media (max-width: 640px) {
  .themes-label { font-size: 1rem; }
  .theme-pill { font-size: .95rem; padding: 5px 12px; }
}

/* ---- Crumbs ---- */
.crumbs {
  margin: 4px 0 16px;
  font-size: .88rem;
  color: var(--muted);
}
.crumbs a { color: var(--accent); text-decoration: none; font-weight: 600; }
.crumbs a:hover { text-decoration: underline; }

/* ---- Categories / subcategories ---- */
.cat-grid, .sub-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.cat-card, .sub-card {
  display: block;
  background: var(--card);
  padding: 18px;
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-sm);
  transition: transform .12s, box-shadow .15s, border-color .15s;
}
.cat-card:hover, .sub-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}
.cat-name, .sub-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.cat-meta, .sub-meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: .82rem;
  font-weight: 500;
}
.prog-row { display: flex; justify-content: space-between; font-size: .78rem; color: var(--muted); margin: 8px 0 4px; font-weight: 600; }
.prog-bar { height: 6px; background: var(--border-soft); border-radius: 3px; overflow: hidden; }
.prog-fill { height: 100%; background: var(--accent); transition: width .25s; }

ul.courses { list-style: none; padding: 0; }
ul.courses li { background: var(--card); margin: 8px 0; padding: 14px 16px; border-radius: var(--radius); border: 1px solid var(--border-soft); }
ul.courses li a { font-size: 1.05rem; font-weight: 700; text-decoration: none; color: var(--text); }
ul.courses li .themes { color: var(--muted); margin-left: 1em; font-size: .88rem; }

/* ---- Levels ---- */
#levels {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}
.level {
  background: var(--card);
  border-radius: var(--radius);
  padding: 14px;
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-sm);
  transition: border-color .15s, box-shadow .15s;
}
.level.current { border-color: var(--accent); box-shadow: var(--shadow); }
.level.locked { opacity: .4; }
.lvl-head { display: flex; justify-content: space-between; align-items: center; font-weight: 700; }
.count { color: var(--muted); font-size: .8rem; font-weight: 600; }
.streak-row { margin-top: 10px; font-size: .88rem; color: var(--muted); }
.streak-row b { color: var(--text); }

.play {
  margin-top: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  cursor: pointer;
  width: 100%;
  font-weight: 700;
  font-family: inherit;
  font-size: .92rem;
  transition: background .15s, transform .1s;
}
.play:hover { background: var(--accent-hover); }
.play:active { transform: scale(.98); }
.lock { color: #c9b8b8; font-size: 1.1em; }

/* ---- Streak cells ---- */
.streak-cells { display: flex; gap: 4px; margin-top: 8px; flex-wrap: wrap; }
.streak-cells .cell {
  width: 22px; height: 22px;
  border-radius: 5px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: .78rem; font-weight: 800;
  color: #fff;
  border: 1px solid transparent;
  background: var(--bg);
  cursor: default;
  transition: transform .1s;
}
.streak-cells .cell.ok { background: var(--ok); cursor: pointer; }
.streak-cells .cell.fail { background: var(--fail); cursor: pointer; }
.streak-cells .cell.empty { background: transparent; border-color: var(--border-soft); }
.streak-cells .cell:not(.empty):hover { transform: scale(1.15); }

/* ===========================
   Puzzle area — доска и контекст
   =========================== */
#puzzle-area {
  margin-top: 20px;
  background: var(--card);
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow);
}
.puzzle-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.puzzle-header #close {
  background: transparent;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  color: var(--accent);
  cursor: pointer;
  font-size: .9rem;
  font-weight: 700;
  font-family: inherit;
  padding: 6px 12px;
  transition: background .15s;
}
.puzzle-header #close:hover { background: var(--bg); border-color: var(--accent); }
#puzzle-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
}
#puzzle-info .pi-meta { color: var(--muted); font-size: .92rem; font-weight: 700; }
#puzzle-info .theme-pill { font-size: .95rem; padding: 4px 11px; }
#puzzle-info .puzzle-code {
  color: var(--muted);
  opacity: .55;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .02em;
  margin-left: 4px;
  user-select: all;
}

/* ---- Деревянная рамка с подписями вокруг доски ---- */
.board-wrap {
  --frame: 22px;
  display: grid;
  grid-template-columns: var(--frame) 1fr var(--frame);
  grid-template-rows: var(--frame) 1fr var(--frame);
  width: min(92vw, 520px);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  padding: 6px;
  background:
    linear-gradient(135deg, var(--board-frame) 0%, var(--board-frame-2) 100%);
  border-radius: 6px;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, .08),
    inset 0 0 0 2px rgba(0, 0, 0, .3),
    0 10px 28px rgba(42, 30, 31, .35);
}
.bw-top    { grid-column: 2; grid-row: 1; }
.bw-bottom { grid-column: 2; grid-row: 3; }
.bw-left   { grid-column: 1; grid-row: 2; }
.bw-right  { grid-column: 3; grid-row: 2; }
.bw-inner  { grid-column: 2; grid-row: 2; overflow: hidden; border-radius: 2px; }
.bw-files, .bw-ranks {
  color: var(--board-label);
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: .02em;
  text-shadow: 0 1px 0 rgba(0, 0, 0, .35);
  user-select: none;
  line-height: 1;
}
.bw-files { display: flex; justify-content: space-around; align-items: center; }
.bw-ranks { display: flex; flex-direction: column; justify-content: space-around; align-items: center; }
.bw-files span, .bw-ranks span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 1em;
  text-align: center;
}
#board {
  width: 100% !important;
  max-width: 100%;
}
#status {
  margin-top: 14px;
  font-size: 1.05rem;
  font-weight: 700;
  min-height: 1.4em;
  text-align: center;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}
#status.ok { color: var(--ok); background: var(--ok-soft); }
#status.fail { color: var(--fail); background: var(--fail-soft); }
#turn-info { margin-top: 8px; color: var(--muted); text-align: center; font-size: .9rem; }

/* ---- Feedback ---- */
.feedback {
  margin-top: 16px;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 10px 14px;
}
.feedback summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 700;
  user-select: none;
  padding: 4px 0;
}
.feedback[open] { padding-bottom: 14px; }
.fb-row { margin: 8px 0; display: flex; flex-direction: column; gap: 4px; }
.fb-row label { font-size: .82rem; color: var(--muted); font-weight: 600; }
.fb-row select, .fb-row input, .fb-row textarea {
  padding: 8px 10px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .92rem;
  background: #fff;
  color: var(--text);
}
.fb-row select:focus, .fb-row input:focus, .fb-row textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(167, 40, 54, .15);
}
#fb-send {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  cursor: pointer;
  font-weight: 700;
  font-family: inherit;
}
#fb-send:hover { background: var(--accent-hover); }
#fb-send:disabled { background: #b8a5a7; cursor: wait; }
#fb-status { margin-left: 10px; font-size: .88rem; }

/* ---- Pager ---- */
.pager {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-soft);
}
.pager-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.pager-head .pager-title { font-weight: 700; color: var(--text); }
.pager-head .pager-meta { color: var(--muted); font-size: .82rem; font-weight: 600; }
.pager-nav { display: flex; gap: 6px; align-items: center; }
.pager-btn {
  background: #fff;
  color: var(--accent);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 5px 11px;
  cursor: pointer;
  font-size: .85rem;
  font-weight: 600;
  font-family: inherit;
  transition: all .12s;
}
.pager-btn:hover:not(:disabled) { background: var(--accent); color: #fff; border-color: var(--accent); }
.pager-btn:disabled { opacity: .4; cursor: not-allowed; }
.pager-page { color: var(--muted); font-size: .85rem; min-width: 60px; text-align: center; font-weight: 600; }
.pager-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 5px;
}
.pz-chip {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 6px 2px;
  cursor: pointer;
  font-size: .72rem;
  color: var(--muted);
  text-align: center;
  font-weight: 600;
  transition: all .12s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pz-chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.pz-chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.pz-chip.ok { border-color: var(--ok); }
.pz-chip.fail { border-color: var(--fail); }

/* ========================================================================
   Шахматная доска — переопределение chessboard.js под board.png (walnut).
   Градиенты имитируют прожилки и тёплые оттенки дерева.
   ======================================================================== */
.white-1e1d7 {
  background: linear-gradient(135deg, var(--board-light) 0%, var(--board-light-2) 100%) !important;
}
.black-3c85d {
  background: linear-gradient(135deg, var(--board-dark) 0%, var(--board-dark-2) 100%) !important;
}
/* chessboard.js стандартная рамка и нотация не используются — рамка у .board-wrap. */
.board-b72b1 { border: 0 !important; border-radius: 0 !important; box-shadow: none !important; }

/* ========================================================================
   Login
   ======================================================================== */
.login-box {
  max-width: 440px;
  margin: 40px auto;
  background: var(--card);
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-lg);
}
.login-box h1 { margin: 0 0 6px; text-align: center; font-size: 1.6rem; }
.login-step { margin-top: 18px; }
.login-step label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 8px; font-weight: 600; }
.role-buttons { display: flex; gap: 10px; }
.role-btn {
  flex: 1;
  background: #fff;
  border: 2px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 18px 12px;
  cursor: pointer;
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  transition: all .15s;
  font-family: inherit;
}
.role-btn:hover { border-color: var(--accent); color: var(--accent); }
.role-btn.selected {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(167, 40, 54, .25);
}
.login-box input, .login-box select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
  color: var(--text);
}
.login-box input:focus, .login-box select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(167, 40, 54, .15);
}
.login-box .next {
  width: 100%;
  margin-top: 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  transition: background .15s;
}
.login-box .next:hover:not(:disabled) { background: var(--accent-hover); }
.login-box .next:disabled { background: #c9b8b8; cursor: not-allowed; }

/* ---- User info in header (badges) ---- */
.user-info .role-badge {
  padding: 3px 9px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  background: rgba(255, 255, 255, .22);
  letter-spacing: .01em;
}
.user-info .pair { font-size: .82rem; opacity: .85; }
.user-info .logout {
  color: #fff;
  opacity: .75;
  text-decoration: none;
  margin-left: 4px;
  font-size: .82rem;
}
.user-info .logout:hover { opacity: 1; text-decoration: underline; }
.user-info .pair-jump {
  color: #fff;
  text-decoration: none;
  font-size: .82rem;
  background: rgba(255, 255, 255, .18);
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 600;
  transition: background .15s;
}
.user-info .pair-jump:hover { background: rgba(255, 255, 255, .32); }

/* ---- Viewers strip + comments ---- */
.viewers-strip {
  margin: 12px 0;
  padding: 10px 14px;
  background: var(--bg);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  font-size: .88rem;
  color: var(--muted);
}
.viewers-strip .viewer { display: inline-block; margin-right: 10px; color: var(--text); font-weight: 600; }
.viewers-strip .viewer .role-t { color: var(--accent); font-weight: 700; }
.viewers-strip .viewer .role-s { color: #8a5a2e; font-weight: 700; }

.comments {
  margin-top: 16px;
  padding: 12px 14px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border-soft);
}
.comments h3 { margin: 0 0 10px; font-size: .95rem; color: var(--text); font-weight: 700; }
.comment { padding: 8px 0; border-bottom: 1px solid var(--border-soft); font-size: .9rem; }
.comment:last-child { border-bottom: none; }
.comment .author { font-weight: 700; color: var(--text); }
.comment .author .role-t { color: var(--accent); font-size: .78rem; font-weight: 700; }
.comment .author .role-s { color: #8a5a2e; font-size: .78rem; font-weight: 700; }
.comment .when { color: var(--muted); font-size: .75rem; margin-left: 8px; }
.comment .text { margin-top: 3px; white-space: pre-wrap; word-break: break-word; }
.comment-form { display: flex; gap: 6px; margin-top: 10px; }
.comment-form input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-family: inherit;
  background: #fff;
}
.comment-form input:focus { outline: none; border-color: var(--accent); }
.comment-form button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  cursor: pointer;
  font-size: .9rem;
  font-weight: 700;
  font-family: inherit;
}
.comment-form button:hover { background: var(--accent-hover); }

/* ========================================================================
   Mobile / tablet adaptation
   ======================================================================== */

/* Крупный планшет и ниже */
@media (max-width: 900px) {
  main { padding: 20px 16px 48px; }
  #levels { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pager-grid { grid-template-columns: repeat(6, 1fr); }
}

/* Мобилка */
@media (max-width: 640px) {
  header {
    padding: 10px 14px;
  }
  header a.brand { font-size: 1rem; }
  header .user-info { font-size: .82rem; gap: 6px; }
  header .user-info .pair { display: none; }
  header .user-info .role-badge { padding: 2px 7px; font-size: .68rem; }

  main { padding: 16px 14px 40px; }

  .cat-grid, .sub-grid { grid-template-columns: 1fr; gap: 10px; }
  .cat-card, .sub-card { padding: 14px; }

  #levels { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .level { padding: 12px; }

  #puzzle-area { padding: 12px; border-radius: var(--radius); }
  .board-wrap { --frame: 18px; padding: 4px; }
  .bw-files, .bw-ranks { font-size: .95rem; }

  .pager-grid { grid-template-columns: repeat(5, 1fr); }
  .pager-head { gap: 6px; }
  .pager-head .pager-meta { width: 100%; }

  .login-box { margin: 20px auto; padding: 22px 18px; border-radius: var(--radius); }

  /* Комменты занимают всю ширину, отправка под инпутом */
  .comment-form { flex-direction: column; }
  .comment-form button { width: 100%; }
}

/* Очень маленькие экраны */
@media (max-width: 380px) {
  #levels { grid-template-columns: 1fr; }
  .streak-cells .cell { width: 20px; height: 20px; font-size: .72rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

/* ---- Мобильный drag на chessboard.js: отключаем нативный scroll/zoom при касании доски ---- */
#board, #board .square-55d11, .bw-inner {
  touch-action: none;
  -ms-touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

/* ---- Тумблер auto-advance в заголовке задачи ---- */
.auto-advance {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  font-size: .88rem;
  font-weight: 700;
  color: var(--muted);
}
.auto-advance input { display: none; }
.auto-advance .switch {
  width: 34px;
  height: 20px;
  background: #d6cdc9;
  border-radius: 999px;
  position: relative;
  transition: background .18s;
  flex-shrink: 0;
}
.auto-advance .switch::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
  transition: left .18s;
}
.auto-advance input:checked + .switch { background: var(--accent); }
.auto-advance input:checked + .switch::after { left: 16px; }
.auto-advance:hover .switch { filter: brightness(1.05); }

/* ---- Кнопки «Следующая задача» / «Повторить» (без авто-перехода) ---- */
#next-area {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
#next-area button {
  font-family: inherit;
  font-weight: 700;
  font-size: .98rem;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  transition: background .15s, transform .05s;
}
#next-area button:hover { background: var(--accent-hover); }
#next-area button:active { transform: translateY(1px); }
#next-area button.secondary {
  background: transparent;
  color: var(--accent);
}
#next-area button.secondary:hover { background: var(--fail-soft); }

/* ---- Навигация разделов (Задачи / Игра) ---- */
.nav-menu {
  display: flex;
  gap: 4px;
  margin-left: auto;
  margin-right: 14px;
}
.nav-menu a {
  color: rgba(255,255,255,.85);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .9rem;
  transition: background .15s, color .15s;
}
.nav-menu a:hover { background: rgba(255,255,255,.12); color: #fff; }
.nav-menu a.active { background: rgba(255,255,255,.18); color: #fff; }

@media (max-width: 640px) {
  .nav-menu { gap: 2px; margin-right: 4px; }
  .nav-menu a { padding: 5px 10px; font-size: .82rem; }
  .auto-advance { font-size: .78rem; gap: 6px; }
  .auto-advance .switch { width: 30px; height: 18px; }
  .auto-advance .switch::after { width: 14px; height: 14px; }
  .auto-advance input:checked + .switch::after { left: 14px; }
}

/* ---- Профиль в шапке: аватар + рейтинг ---- */
.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-decoration: none;
  padding: 3px 10px 3px 3px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  transition: background .15s;
}
.user-chip:hover { background: rgba(255,255,255,.16); }
.user-chip b { font-weight: 700; font-size: .92rem; }
.avatar-mini-wrap { position: relative; width: 26px; height: 26px; }
.avatar-mini {
  width: 26px; height: 26px; border-radius: 50%;
  object-fit: cover; border: 1.5px solid rgba(255,255,255,.7);
  background: #fff;
}
.avatar-mini-placeholder {
  position: absolute; inset: 0;
  width: 26px; height: 26px; border-radius: 50%;
  display: none;
  align-items: center; justify-content: center;
  background: rgba(255,255,255,.2);
  color: #fff;
  font-weight: 800;
  font-size: .82rem;
  border: 1.5px solid rgba(255,255,255,.6);
}
.rating-chip {
  background: rgba(0,0,0,.18);
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 800;
  font-size: .82rem;
  letter-spacing: .01em;
}

/* ---- Страница профиля ---- */
.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
  margin-top: 18px;
}
.profile-card {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow);
}
.profile-card h2 {
  margin: 0 0 16px;
  font-size: 1.15rem;
  color: var(--accent);
}
.profile-card h3 { font-size: 1rem; color: var(--muted); margin: 0 0 10px; }
.avatar-row { display: flex; gap: 20px; align-items: center; margin-bottom: 18px; flex-wrap: wrap; }
.avatar-wrap { position: relative; width: 96px; height: 96px; }
.avatar-big {
  width: 96px; height: 96px; border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  background: var(--bg);
}
.avatar-placeholder {
  position: absolute; inset: 0;
  width: 96px; height: 96px; border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 2.3rem;
  color: var(--accent);
}
.avatar-actions { display: flex; flex-direction: column; gap: 6px; }
.btn {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 700;
  font-size: .92rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, border-color .15s;
  text-decoration: none;
  text-align: center;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-secondary { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-secondary:hover { background: var(--fail-soft); }
.profile-form-row {
  display: flex; gap: 10px; align-items: center;
  margin: 12px 0;
  flex-wrap: wrap;
}
.profile-form-row label { min-width: 60px; color: var(--muted); font-size: .92rem; font-weight: 700; }
.profile-form-row input[type=text],
.profile-form-row select {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .95rem;
  background: var(--bg);
}
.profile-form-row input[type=text]:focus,
.profile-form-row select:focus { outline: none; border-color: var(--accent); }
.role-line { color: var(--muted); font-size: .92rem; }
.pair-current { font-size: 1.1rem; margin-bottom: 12px; }
.muted { color: var(--muted); }
.muted.small { font-size: .82rem; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 10px;
}
.stat-cell {
  padding: 14px 10px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  text-align: center;
}
.stat-val {
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1.1;
}
.stat-lbl { color: var(--muted); font-size: .78rem; font-weight: 700; margin-top: 4px; }
.cat-stats { list-style: none; padding: 0; margin: 0; }
.cat-stats li {
  display: flex; justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-soft);
}
.cat-stats li:last-child { border-bottom: none; }
.cs-name { font-weight: 700; }
.cs-meta { color: var(--muted); }

/* ---- Аннотации на доске (SVG overlay) ---- */
.bw-inner { position: relative; }
.annotations-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 4;
}
.ann-sq { fill: rgba(21,140,40,.28); stroke: rgba(21,140,40,.6); stroke-width: 4; }
.ann-sq.ann-pair { fill: rgba(45,115,220,.25); stroke: rgba(45,115,220,.6); }
.ann-arrow { stroke: rgba(21,140,40,.75); stroke-width: 16; stroke-linecap: round; fill: none; }
.ann-arrow.ann-pair { stroke: rgba(45,115,220,.7); }
.ann-hint {
  margin-top: 8px;
  font-size: .82rem;
  text-align: center;
  color: var(--muted);
}

/* ========================================================================
   Chessground overrides — walnut/nature theme + sizing
   ======================================================================== */
/* Доска Chessground занимает всю bw-inner. */
.bw-inner #board.cg-wrap {
  width: 100%;
  height: 100%;
  display: block;
}
/* Walnut-палитра клеток (override chessground.brown.css). */
.cg-wrap cg-board {
  background-color: var(--board-light) !important;
  background-image:
    repeating-conic-gradient(var(--board-light) 0% 25%, var(--board-dark) 0% 50%) !important;
  background-size: 25% 25% !important;
}
/* Подсветка последнего хода и выделенной клетки. */
.cg-wrap cg-board square.last-move {
  background: rgba(167, 40, 54, .28) !important;
}
.cg-wrap cg-board square.selected {
  background: rgba(167, 40, 54, .45) !important;
}
.cg-wrap cg-board square.check {
  background: radial-gradient(ellipse at center, rgba(217,59,74,.65) 0%, rgba(217,59,74,0) 70%) !important;
}
.cg-wrap cg-board square.move-dest {
  background: radial-gradient(rgba(21,140,40,.4) 22%, transparent 24%) !important;
}
.cg-wrap cg-board square.premove-dest {
  background: radial-gradient(rgba(30,80,175,.4) 22%, transparent 24%) !important;
}
.cg-wrap cg-board square.oc.move-dest {
  background: radial-gradient(transparent 58%, rgba(21,140,40,.5) 60%) !important;
}

/* ---- Legacy chessboard.js styles остались выше — не мешают Chessground ---- */

/* ---- Games lobby / game view ---- */
.games-page h1 { margin-top: 4px; }
.games-create-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin: 16px 0 24px;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.games-create-row label { color: var(--muted); font-weight: 700; font-size: .88rem; }
.games-create-row select {
  padding: 7px 10px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .92rem;
  background: #fff;
  color: var(--text);
}
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.game-card {
  background: var(--card);
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color .15s, box-shadow .15s;
}
.game-card:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.game-card .gc-head { display: flex; justify-content: space-between; align-items: center; font-size: .88rem; color: var(--muted); }
.game-card .gc-status { padding: 2px 8px; border-radius: 999px; font-weight: 700; font-size: .72rem; letter-spacing: .02em; }
.gc-status.waiting { background: #fff4d6; color: #8a5a10; }
.gc-status.active { background: var(--ok-soft); color: var(--ok); }
.gc-status.finished { background: var(--border-soft); color: var(--muted); }
.game-card .gc-players { font-weight: 700; }
.game-card .gc-players .gc-white::before { content: "♔ "; }
.game-card .gc-players .gc-black::before { content: "♚ "; }
.game-card .gc-actions { display: flex; gap: 6px; justify-content: flex-end; }
.games-empty { text-align: center; padding: 40px; color: var(--muted); }

.game-view {
  display: grid;
  grid-template-columns: minmax(0, 560px) 1fr;
  gap: 20px;
  margin-top: 14px;
}
@media (max-width: 900px) {
  .game-view { grid-template-columns: 1fr; }
}
.game-side {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
}
.game-players-row { display: flex; justify-content: space-between; font-weight: 700; font-size: .92rem; }
.game-clock { font-family: 'SF Mono', Menlo, monospace; font-weight: 800; color: var(--accent); }
.game-chat {
  flex: 1;
  min-height: 180px;
  max-height: 360px;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: .88rem;
}
.gm-line { margin: 4px 0; }
.gm-line .gm-who { font-weight: 700; color: var(--accent); }
.gm-line .gm-who.spectator { color: var(--muted); }
.gm-line .gm-who.coach { color: #8a5a2e; }
.gm-line.system { color: var(--muted); font-style: italic; }
.game-chat-form { display: flex; gap: 6px; }
.game-chat-form input {
  flex: 1; padding: 8px 10px; border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
  font-family: inherit; font-size: .9rem; background: #fff;
}
.game-chat-form button {
  background: var(--accent); color: #fff; border: none; border-radius: var(--radius-sm);
  padding: 8px 14px; cursor: pointer; font-weight: 700; font-family: inherit;
}
.game-controls { display: flex; gap: 6px; flex-wrap: wrap; }
.game-controls button {
  padding: 7px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border-soft);
  background: #fff; color: var(--text); font-family: inherit; font-weight: 700;
  font-size: .85rem; cursor: pointer; transition: all .15s;
}
.game-controls button:hover { border-color: var(--accent); color: var(--accent); }
.game-controls button.danger:hover { border-color: var(--fail); color: var(--fail); background: var(--fail-soft); }
.game-controls button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.game-controls button.primary:hover { background: var(--accent-hover); }
.game-banner {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--ok-soft);
  color: var(--ok);
  font-weight: 700;
  text-align: center;
}
.game-banner.pending { background: #fff4d6; color: #8a5a10; }
.game-banner.coach { background: #e5efff; color: #1e50af; }
.game-banner.end { background: var(--fail-soft); color: var(--fail); }

/* ---- Заглушка для раздела «Игра» ---- */
.games-stub {
  text-align: center;
  padding: 60px 20px;
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow);
  margin-top: 20px;
}
.games-stub h2 { font-size: 1.8rem; margin: 0 0 12px; color: var(--accent); }
.games-stub p { color: var(--muted); font-size: 1.05rem; max-width: 520px; margin: 8px auto; }
.games-stub .soon { display: inline-block; margin-top: 18px; padding: 6px 14px;
  background: var(--accent); color: #fff; border-radius: 999px; font-weight: 700; font-size: .85rem; }

/* ---- admin-note: плавающий виджет заметок админа ---- */
.admin-note {
  position: fixed; right: 14px; bottom: 14px; z-index: 9000;
  font-family: inherit;
}
.admin-note__toggle {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(0,0,0,.1);
  background: #fff; color: var(--accent);
  font-size: 17px; cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,.18);
  display: flex; align-items: center; justify-content: center;
  transition: transform .15s;
}
.admin-note__toggle:hover { transform: scale(1.06); }
.admin-note__panel {
  position: absolute; right: 0; bottom: 46px;
  width: 280px; background: #fff;
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 10px;
  box-shadow: 0 8px 22px rgba(0,0,0,.22);
  padding: 10px;
  display: flex; flex-direction: column; gap: 6px;
}
.admin-note--collapsed .admin-note__panel { display: none; }
.admin-note__head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: .82rem; font-weight: 700; color: var(--muted);
}
.admin-note__all {
  color: var(--accent); text-decoration: none; font-size: .78rem;
}
.admin-note__all:hover { text-decoration: underline; }
.admin-note__path {
  font-family: ui-monospace, Menlo, monospace;
  font-size: .72rem; color: var(--muted); opacity: .7;
  word-break: break-all;
}
.admin-note textarea {
  width: 100%; min-height: 90px; resize: vertical;
  border: 1px solid rgba(0,0,0,.12); border-radius: 6px;
  padding: 6px 8px; font-family: inherit; font-size: .9rem;
  box-sizing: border-box;
}
.admin-note__foot {
  display: flex; justify-content: space-between; align-items: center;
}
.admin-note__status { font-size: .78rem; color: var(--muted); }
.admin-note__send {
  padding: 5px 14px; border: none; border-radius: 6px;
  background: var(--accent); color: #fff; font-weight: 700; cursor: pointer;
  font-size: .85rem;
}
.admin-note__send:hover { filter: brightness(1.08); }
.admin-note__send:disabled { opacity: .6; cursor: default; }

/* ---- /admin/feedback: список заметок ---- */
.admin-feedback-list { max-width: 900px; margin: 20px auto; padding: 0 16px; }
.admin-feedback-list h1 { color: var(--accent); margin-bottom: 16px; }
.afb-item {
  background: #fff; border: 1px solid rgba(0,0,0,.08); border-radius: 8px;
  padding: 12px 14px; margin-bottom: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,.04);
}
.afb-item.afb-resolved { opacity: .55; }
.afb-head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: .82rem; color: var(--muted); margin-bottom: 6px;
  gap: 10px; flex-wrap: wrap;
}
.afb-path {
  font-family: ui-monospace, Menlo, monospace; color: var(--accent);
  font-size: .82rem;
}
.afb-path a { color: inherit; text-decoration: none; }
.afb-path a:hover { text-decoration: underline; }
.afb-text { white-space: pre-wrap; font-size: .95rem; }
.afb-foot { display: flex; justify-content: flex-end; margin-top: 6px; }
.afb-btn {
  background: transparent; border: 1px solid rgba(0,0,0,.15);
  padding: 3px 10px; border-radius: 5px; cursor: pointer;
  font-size: .78rem; color: var(--muted);
}
.afb-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ========== ИИ-тренировка ========== */
.train-view {
  display: grid;
  grid-template-columns: 220px minmax(0, 560px) 220px;
  gap: 16px;
  margin-top: 8px;
  align-items: start;
}
@media (max-width: 1000px) {
  .train-view { grid-template-columns: 1fr; }
}
.train-left, .train-right {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}
.train-controls {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.train-controls .btn {
  background: var(--card, #fff);
  border: 1px solid var(--border-soft, rgba(0,0,0,.15));
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: .92rem;
}
.train-controls .btn.primary {
  background: var(--accent, #5b6cff);
  color: #fff;
  border-color: var(--accent, #5b6cff);
}
.train-controls .btn:hover { filter: brightness(.95); }
.train-skill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
}
.train-skill input[type=range] { width: 140px; }
.skill-label {
  min-width: 140px;
  color: var(--muted);
  font-size: .82rem;
}
.train-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg, #f7f3ea);
  border: 1px solid var(--border-soft, rgba(0,0,0,.15));
  border-radius: 6px;
  cursor: pointer;
  font-size: .9rem;
  user-select: none;
}
body.whatif-on .train-toggle {
  background: #fff3c4;
  border-color: #e6a800;
}

/* Eval bar — вертикальная полоса */
.eval-bar-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}
.eval-bar {
  width: 28px;
  height: 320px;
  background: #222;
  border: 1px solid var(--border-soft, rgba(0,0,0,.2));
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: flex-end;
}
.eval-bar-white {
  width: 100%;
  background: #f0ead4;
  transition: height 0.3s ease;
}
.eval-text {
  font-size: .85rem;
  text-align: center;
  line-height: 1.3;
  max-width: 200px;
}
.eval-text.great { color: #1a7d1a; font-weight: 700; }
.eval-text.good  { color: #2a8a2a; }
.eval-text.neutral { color: var(--muted); }
.eval-text.warn  { color: #c08000; }
.eval-text.bad   { color: #c44; font-weight: 700; }

/* What if popup */
.whatif-popup {
  background: #fffbe6;
  border: 2px solid #e6a800;
  border-radius: 8px;
  padding: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,.12);
  font-size: .92rem;
  line-height: 1.45;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.whatif-popup .wi-thinking { color: var(--muted); }
.whatif-popup .wi-head { font-weight: 600; }
.whatif-popup .wi-verdict {
  padding: 6px 10px;
  border-radius: 4px;
  font-weight: 700;
}
.whatif-popup .wi-verdict.great { background: #dfffdf; color: #0d6e0d; }
.whatif-popup .wi-verdict.good  { background: #e8f7e8; color: #2a8a2a; }
.whatif-popup .wi-verdict.neutral { background: #f4f4f4; color: #555; }
.whatif-popup .wi-verdict.warn  { background: #fff3c4; color: #a07000; }
.whatif-popup .wi-verdict.bad   { background: #ffe0e0; color: #a02020; }
.whatif-popup .wi-eval { color: var(--muted); font-size: .85rem; }
.whatif-popup .wi-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}
.whatif-popup .btn {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--border-soft, rgba(0,0,0,.15));
  background: #fff;
  cursor: pointer;
  font-size: .9rem;
}
.whatif-popup .btn.primary {
  background: var(--accent, #5b6cff);
  color: #fff;
  border-color: var(--accent, #5b6cff);
}

/* Promotion dialog — overlay на доске при превращении пешки */
.promotion-dialog {
  position: absolute;
  z-index: 50;
  display: none;
  flex-direction: column;
  background: var(--card, #fff);
  border: 1px solid var(--border-soft, rgba(0,0,0,.15));
  border-radius: 4px;
  box-shadow: 0 6px 24px rgba(0,0,0,.3);
  overflow: hidden;
}
.promotion-dialog .promo-btn {
  width: 100%;
  aspect-ratio: 1 / 1;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  line-height: 1;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #222;
  transition: background 0.12s;
}
.promotion-dialog .promo-btn:hover {
  background: var(--accent, #5b6cff);
  color: #fff;
}
.promotion-dialog .promo-cancel {
  font-size: clamp(0.9rem, 2.5vw, 1.2rem);
  aspect-ratio: auto;
  padding: 6px 0;
  border-top: 1px solid var(--border-soft, rgba(0,0,0,.15));
  color: var(--muted, #888);
}
.promotion-dialog .promo-cancel:hover {
  background: #c44;
  color: #fff;
}

/* Opening detector box — в aside партии */
.opening-box {
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 58px;
}
.opening-box .op-eco {
  font-family: 'SF Mono', Menlo, monospace;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--muted);
  letter-spacing: 0.5px;
}
.opening-box.has-op .op-eco { color: var(--accent); }
.opening-box .op-name-ru {
  font-weight: 700;
  font-size: .95rem;
  color: var(--fg);
  line-height: 1.2;
}
.opening-box .op-name-en {
  font-size: .78rem;
  color: var(--muted);
  font-style: italic;
  line-height: 1.2;
}