/* Веб-шелл Pursuit (Car Casual) — sciencepub.ru/carcasual/
   Ночная трасса: асфальт + янтарные фары. Игра слева, рейтинг/награды справа,
   отзывы снизу. Адаптив для телефона. Раскладка — порт шелла DeepSpace/DragonPicker. */

:root {
  --bg: #0b0710;
  --bg2: #140b1e;
  --panel: #1b1226;
  --panel2: #241733;
  --edge: #3a2850;
  --gold: #f2b13d;
  --gold-dim: #c58b2a;
  --ember: #ff6a3c;
  --text: #ecf0f5;
  --muted: #939eae;
  --good: #7fe08a;
  --shadow: 0 10px 30px rgba(0,0,0,.45);
  --radius: 14px;
  --rail-w: 340px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background:
    radial-gradient(1200px 700px at 70% -10%, #2b1c0e 0%, transparent 60%),
    radial-gradient(900px 600px at -10% 20%, #17203a 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  min-height: 100%;
}

h1, h2 { font-family: Georgia, "Times New Roman", serif; margin: 0; }

.muted { color: var(--muted); }
.pad { padding: 10px 12px; display: block; }

/* ---------- Topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 12px 22px;
  border-bottom: 1px solid var(--edge);
  background: linear-gradient(180deg, rgba(30,18,44,.9), rgba(20,11,30,.6));
  backdrop-filter: blur(6px);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo { font-size: 30px; filter: drop-shadow(0 2px 6px rgba(255,120,60,.5)); }
.brand-text h1 { font-size: 20px; color: var(--gold); letter-spacing: .3px; }
.brand-text p { margin: 2px 0 0; font-size: 12px; color: var(--muted); }

.topbar-right { display: flex; align-items: center; gap: 14px; }

/* Кнопка «Купить книгу» (оплата через Tribute) */
.buy-book {
  display: inline-flex; align-items: center; gap: 9px; text-decoration: none;
  background: linear-gradient(180deg, var(--gold), var(--gold-dim));
  color: #2a1c07; padding: 7px 14px; border-radius: 999px; font-size: 13px;
  box-shadow: 0 3px 10px rgba(232,192,106,.28); border: 1px solid rgba(0,0,0,.08);
  transition: transform .12s ease, filter .12s ease; white-space: nowrap;
}
.buy-book:hover { filter: brightness(1.06); transform: translateY(-1px); }
.buy-book .bb-icon { font-size: 20px; filter: none; }
.buy-book .bb-text { display: flex; flex-direction: column; line-height: 1.05; }
.buy-book .bb-text b { font-weight: 800; }
.buy-book .bb-text span { font-size: 11px; opacity: .8; }

.auth { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.auth .user-chip { display: flex; align-items: center; gap: 8px; background: var(--panel2); border: 1px solid var(--edge); padding: 5px 10px; border-radius: 999px; }
.auth .user-chip img { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; }
.auth .guest-name { background: var(--panel2); border: 1px solid var(--edge); color: var(--text); border-radius: 8px; padding: 7px 10px; width: 150px; font-size: 13px; }
.auth .guest-name:focus { outline: none; border-color: var(--gold-dim); }

.btn-ya { background: #fc3f1d; color: #fff; border: none; border-radius: 8px; padding: 8px 12px; font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.btn-ya:hover { filter: brightness(1.08); }
.btn-plain { background: transparent; border: 1px solid var(--edge); color: var(--muted); border-radius: 8px; padding: 7px 10px; cursor: pointer; }
.btn-plain:hover { color: var(--text); border-color: var(--gold-dim); }

.btn-primary { background: linear-gradient(180deg, var(--gold), var(--gold-dim)); color: #2a1c07; border: none; border-radius: 9px; padding: 8px 16px; font-weight: 700; cursor: pointer; }
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary:disabled { opacity: .5; cursor: default; filter: none; }

.ico-btn { background: var(--panel2); border: 1px solid var(--edge); color: var(--text); width: 34px; height: 30px; border-radius: 8px; cursor: pointer; font-size: 15px; }
.ico-btn:hover { border-color: var(--gold-dim); }

/* ---------- Book strip (визитка книги) ---------- */
.book-strip {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 1420px;
  margin: 14px auto 0;
  padding: 12px 14px;
  background: linear-gradient(180deg, var(--panel), var(--bg2));
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.book-strip .bs-cover {
  flex: 0 0 auto;
  line-height: 0;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--edge);
}
.book-strip .bs-cover img {
  display: block;
  height: 116px;
  width: auto;
  transition: transform .25s ease;
}
.book-strip .bs-cover:hover img { transform: scale(1.03); }
.book-strip .bs-text { flex: 1 1 auto; min-width: 0; }
.book-strip .bs-text h2 { font-size: 17px; color: var(--gold); margin: 0 0 4px; }
.book-strip .bs-text p { margin: 0 0 10px; font-size: 13px; color: var(--muted); line-height: 1.45; }
.book-strip .bs-buy {
  display: inline-block;
  background: linear-gradient(180deg, var(--gold), var(--gold-dim));
  color: #2a1c07;
  font-weight: 800;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 10px;
}
.book-strip .bs-buy:hover { filter: brightness(1.06); transform: translateY(-1px); }
.book-strip .bs-buttons { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
/* Вторая кнопка (PDF в Telegram) — контурная, второстепенная */
.book-strip .bs-buy-2 {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold-dim);
  font-weight: 700;
}
.book-strip .bs-buy-2:hover { background: rgba(232,192,106,.10); }
.book-strip .bs-formats { margin: 8px 0 0; font-size: 12px; color: var(--muted); line-height: 1.4; }
.book-strip .bs-promo { margin-top: 9px; }

/* Атрибут hidden должен побеждать display:flex у групп/промо ниже */
[hidden] { display: none !important; }

/* Бар покупок под шапкой: все кнопки-покупки с ценой, сгруппированы, без дублей */
.buybar {
  max-width: 1420px; margin: 12px auto 0; padding: 10px 16px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px;
  background: linear-gradient(180deg, var(--panel), var(--bg2));
  border: 1px solid var(--edge); border-radius: var(--radius); box-shadow: var(--shadow);
}
.buybar .bb-cover { height: 60px; width: auto; border-radius: 8px; border: 1px solid var(--edge); flex: 0 0 auto; }
.buybar .bb-group { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.buybar .bb-label { color: var(--muted); font-size: 13px; }
.buy-pill {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none; white-space: nowrap;
  background: linear-gradient(180deg, var(--gold), var(--gold-dim)); color: #2a1c07;
  font-weight: 800; font-size: 13.5px; padding: 8px 15px; border-radius: 999px; border: 1px solid transparent;
}
.buy-pill:hover { filter: brightness(1.06); transform: translateY(-1px); }
.buy-pill.alt { background: transparent; color: var(--gold); border-color: var(--gold-dim); }
.buy-pill.alt:hover { background: rgba(232,192,106,.1); filter: none; transform: translateY(-1px); }
.bb-textlink {
  background: none; border: none; padding: 0; color: var(--muted); font-size: 12.5px;
  cursor: pointer; text-decoration: underline; text-underline-offset: 2px;
}
.bb-textlink:hover { color: var(--text); }
.bb-promo { display: flex; gap: 8px; width: 100%; margin-top: 2px; }
.bb-promo input {
  background: var(--panel2); border: 1px solid var(--edge); color: var(--text);
  border-radius: 8px; padding: 7px 10px; font-size: 13px; width: 160px;
}
.bb-promo input:focus { outline: none; border-color: var(--gold-dim); }
.bb-promo button {
  background: var(--panel2); border: 1px solid var(--gold-dim); color: var(--text);
  border-radius: 8px; padding: 7px 12px; font-size: 13px; cursor: pointer;
}
@media (max-width: 720px) { .buybar .bb-cover { display: none; } }

/* Подсказка над рейтингом «авторизуйтесь, чтобы попасть в лидерборд» */
.lb-authhint {
  display: block; width: 100%; text-align: left;
  background: rgba(232,192,106,.08); border: 1px solid var(--gold-dim);
  color: var(--gold); border-radius: 10px; padding: 9px 12px; margin: 0 0 10px;
  font-size: 12.5px; line-height: 1.4; cursor: pointer;
}
.lb-authhint:hover { background: rgba(232,192,106,.16); }
.book-strip .bs-promo-toggle {
  background: none; border: none; padding: 0;
  color: var(--muted); font-size: 12px; cursor: pointer;
  text-decoration: underline; text-underline-offset: 2px;
}
.book-strip .bs-promo-toggle:hover { color: var(--text); }
.book-strip .bs-promo-form { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.book-strip .bs-promo-form input {
  background: var(--panel2); border: 1px solid var(--edge); color: var(--text);
  border-radius: 8px; padding: 7px 10px; font-size: 13px; width: 160px;
}
.book-strip .bs-promo-form input:focus { outline: none; border-color: var(--gold-dim); }
.book-strip .bs-promo-form button {
  background: var(--panel2); border: 1px solid var(--gold-dim); color: var(--text);
  border-radius: 8px; padding: 7px 14px; font-size: 13px; cursor: pointer;
}
.book-strip .bs-promo-form button:hover { color: var(--gold); }
.book-strip .bs-promo-form button:disabled { opacity: .55; cursor: default; }
.book-strip .bs-close {
  position: absolute;
  top: 8px; right: 10px;
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.book-strip .bs-close:hover { color: var(--text); }

@media (max-width: 720px) {
  .book-strip { flex-direction: column; align-items: stretch; text-align: center; margin: 12px 12px 0; }
  .book-strip .bs-cover { align-self: center; }
  .book-strip .bs-cover img { height: auto; width: 100%; max-width: 340px; }
  .book-strip .bs-text p { display: none; }
}

/* ---------- Layout ---------- */
.shell {
  display: grid;
  gap: 16px;
  padding: 16px;
  max-width: 1420px;
  margin: 0 auto;
  grid-template-columns: minmax(0, 1fr) var(--rail-w);
  grid-template-areas:
    "game        leaderboard"
    "comments    achievements";
  align-items: start;
}
.game        { grid-area: game; }
.leaderboard { grid-area: leaderboard; }
.comments    { grid-area: comments; }
.achievements{ grid-area: achievements; }

body.rail-collapsed .shell { grid-template-columns: minmax(0, 1fr) 0; }
body.rail-collapsed .leaderboard,
body.rail-collapsed .achievements { display: none; }

/* ---------- Panels ---------- */
.panel {
  background: linear-gradient(180deg, var(--panel), var(--bg2));
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; padding: 12px 16px;
  background: linear-gradient(180deg, rgba(232,192,106,.10), transparent);
  border-bottom: 1px solid var(--edge);
}
.panel-head h2 { font-size: 16px; color: var(--gold); }
.panel-head.collapsible { width: 100%; border: none; border-bottom: 1px solid var(--edge); cursor: pointer; text-align: left; color: inherit; font: inherit; }
.panel-head.collapsible:hover h2 { color: #f4d68a; }
.panel-head .chev { color: var(--gold-dim); transition: transform .2s ease; }
.panel-head[aria-expanded="false"] .chev { transform: rotate(-90deg); }
.head-actions { display: flex; gap: 8px; }

.panel-body { max-height: 1200px; transition: max-height .28s ease, opacity .2s ease, padding .2s ease; }
.panel-body.hidden { max-height: 0; opacity: 0; overflow: hidden; }

/* ---------- Game ---------- */
.game-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 960 / 600;
  background: #000;
}
.game-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; }

/* ---------- Leaderboard ---------- */
.lb-list { list-style: none; margin: 0; padding: 6px; counter-reset: none; max-height: 520px; overflow-y: auto; }
.lb-list li.row { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 10px; }
.lb-list li.row:nth-child(odd) { background: rgba(255,255,255,.03); }
.lb-rank { width: 26px; text-align: center; font-weight: 700; color: var(--muted); }
.lb-list li.row.top1 .lb-rank { color: #ffd561; }
.lb-list li.row.top2 .lb-rank { color: #d7dde6; }
.lb-list li.row.top3 .lb-rank { color: #e0965a; }
.lb-ava { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; background: var(--panel2); flex: none; display: grid; place-items: center; font-size: 14px; }
.lb-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-name .me-tag { color: var(--good); font-size: 11px; margin-left: 6px; }
.lb-score { font-weight: 700; color: var(--gold); font-variant-numeric: tabular-nums; }
.lb-refresh { display: block; width: calc(100% - 12px); margin: 6px; padding: 8px; background: var(--panel2); border: 1px solid var(--edge); color: var(--muted); border-radius: 9px; cursor: pointer; }
.lb-refresh:hover { color: var(--text); border-color: var(--gold-dim); }

/* ---------- Comments ---------- */
.cm-form { padding: 12px; border-bottom: 1px solid var(--edge); }
.cm-form textarea { width: 100%; resize: vertical; min-height: 44px; background: var(--panel2); border: 1px solid var(--edge); color: var(--text); border-radius: 10px; padding: 10px; font: inherit; }
.cm-form textarea:focus { outline: none; border-color: var(--gold-dim); }
.cm-actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 8px; }
.cm-list { list-style: none; margin: 0; padding: 8px 12px; max-height: 360px; overflow-y: auto; }
.cm-item { display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.05); }
.cm-item:last-child { border-bottom: none; }
.cm-ava { width: 30px; height: 30px; border-radius: 50%; flex: none; background: var(--panel2); display: grid; place-items: center; font-size: 15px; object-fit: cover; }
.cm-body { flex: 1; min-width: 0; }
.cm-meta { display: flex; gap: 8px; align-items: baseline; }
.cm-author { font-weight: 600; color: var(--gold); }
.cm-time { font-size: 11px; color: var(--muted); }
.cm-text { margin: 3px 0 0; white-space: pre-wrap; word-break: break-word; }

/* ---------- Achievements (стыкующиеся плашки) ---------- */
.ach-count { font-size: 12px; color: var(--muted); font-family: "Segoe UI", sans-serif; }
.ach-stack { display: flex; flex-direction: column; gap: 0; padding: 12px; }
.ach {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px;
  background: linear-gradient(180deg, var(--panel2), #1d1329);
  border: 1px solid var(--edge);
  border-bottom-width: 0;
  position: relative;
}
.ach:first-child { border-top-left-radius: 12px; border-top-right-radius: 12px; }
.ach:last-child { border-bottom-width: 1px; border-bottom-left-radius: 12px; border-bottom-right-radius: 12px; }
.ach.locked { opacity: .45; filter: grayscale(.7); }
.ach.unlocked { border-left: 3px solid var(--gold); }
.ach.pop { animation: achpop .6s ease; }
@keyframes achpop {
  0% { transform: translateX(18px); box-shadow: 0 0 0 rgba(232,192,106,0); }
  40% { transform: translateX(0); box-shadow: 0 0 22px rgba(232,192,106,.6); }
  100% { box-shadow: 0 0 0 rgba(232,192,106,0); }
}
.ach-ico { width: 40px; height: 40px; flex: none; display: grid; place-items: center; font-size: 22px; background: radial-gradient(circle at 40% 30%, #33223f, #150d1f); border-radius: 10px; border: 1px solid var(--edge); }
.ach.unlocked .ach-ico { box-shadow: inset 0 0 10px rgba(232,192,106,.35); }
.ach-info { flex: 1; min-width: 0; }
.ach-title { font-weight: 700; color: var(--text); font-size: 14px; }
.ach.unlocked .ach-title { color: var(--gold); }
.ach-desc { font-size: 12px; color: var(--muted); margin-top: 2px; }
.ach-lock { color: var(--muted); font-size: 15px; }

/* ---------- Reopen tab + toast ---------- */
.rail-reopen {
  position: fixed; right: 0; top: 50%; transform: translateY(-50%);
  writing-mode: vertical-rl; text-orientation: mixed;
  background: linear-gradient(180deg, var(--gold), var(--gold-dim));
  color: #2a1c07; border: none; padding: 16px 8px; border-radius: 12px 0 0 12px;
  font-weight: 700; cursor: pointer; z-index: 30; box-shadow: var(--shadow);
}
.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  background: var(--panel2); border: 1px solid var(--gold-dim); color: var(--text);
  padding: 12px 18px; border-radius: 10px; z-index: 50; box-shadow: var(--shadow);
  max-width: 90vw; text-align: center;
}
.toast.show { animation: toastin .25s ease; }
@keyframes toastin { from { opacity: 0; transform: translate(-50%, 10px); } to { opacity: 1; } }

.site-foot { display: flex; gap: 14px; justify-content: center; align-items: center; padding: 18px; color: var(--muted); font-size: 12px; flex-wrap: wrap; }
.site-foot a { color: var(--gold-dim); }

/* ---------- Планшет: боковая колонка под игру ---------- */
@media (max-width: 1080px) {
  .shell {
    grid-template-columns: 1fr;
    grid-template-areas: "game" "leaderboard" "comments" "achievements";
  }
  body.rail-collapsed .shell { grid-template-columns: 1fr; }
  body.rail-collapsed .leaderboard,
  body.rail-collapsed .achievements { display: block; }
  #railToggle, .rail-reopen { display: none; }
  .lb-list, .cm-list { max-height: 320px; }
}

/* ---------- Телефон ---------- */
@media (max-width: 560px) {
  .topbar { padding: 10px 14px; flex-wrap: wrap; gap: 8px; }
  .brand-text h1 { font-size: 17px; }
  .brand-text p { display: none; }
  .auth .guest-name { width: 110px; }
  .topbar-right { gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
  .buy-book { padding: 6px 11px; }
  .buy-book .bb-text span { display: none; }
  .buy-book .bb-text b::after { content: " · 150 ₽"; font-weight: 800; }
  .shell { padding: 10px; gap: 12px; }
  .panel-head h2 { font-size: 15px; }
}