/* =====================================================================
   theme-secondary.css — ОБЩАЯ ШАПКА + ТЕМА (киберпанк, сегмент 5-9)
   Извлечено из рабочего index.html. Подключается на каждой странице:
       <link rel="stylesheet" href="/kidsbook/coin/theme-secondary.css">
   Разметку шапки вставляет shell.js. Здесь — только стили обвязки.

   Что делает страница при миграции:
   1) добавляет этот <link> и <script src="shell.js" defer>;
   2) удаляет из своего инлайн-<style> ВСЕ правила ниже (они теперь тут);
   3) удаляет свой <header>/<div class="header"> и <div class="mobile-nav">.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Exo+2:wght@400;600;700;800&family=Rubik:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- ПЕРЕМЕННЫЕ ---------- */
:root {
  --bg-dark: #10002b;
  --bg-darker: #0a0018;
  --bg-card: #1a0033;
  --bg-card-hover: #240044;
  --cyan: #05d9e8;
  --pink: #ff2a6d;
  --purple: #d000ff;
  --orange: #ffa500;
  --green: #00ff41;
  --gold: #ffd700;
  --text: #ffffff;
  --text-dim: #a0a0a0;
  --text-muted: #6b7280;
  --glow-cyan: 0 0 20px rgba(5, 217, 232, 0.6), 0 0 40px rgba(5, 217, 232, 0.3);
  --glow-pink: 0 0 20px rgba(255, 42, 109, 0.6), 0 0 40px rgba(255, 42, 109, 0.3);
  --glow-purple: 0 0 20px rgba(208, 0, 255, 0.6);
  --glow-green: 0 0 20px rgba(0, 255, 65, 0.6);
  --glow-gold: 0 0 20px rgba(255, 215, 0, 0.6);
  --gradient-main: linear-gradient(135deg, var(--cyan), var(--pink), var(--purple));
  --gradient-cta: linear-gradient(135deg, var(--pink) 0%, var(--purple) 100%);
}

/* ---------- БАЗА + ФОН (общий для всех страниц) ---------- */
html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: 'Rubik', system-ui, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  /* шапка фиксированная — отступ, чтобы контент не уезжал под неё.
     Если у страницы УЖЕ есть свой верхний отступ — уберите его там. */
  padding-top: 64px;
}

body::before {
  content: '';
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(5, 217, 232, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(255, 42, 109, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(208, 0, 255, 0.08) 0%, transparent 60%);
  z-index: -1;
  animation: nebula 30s ease-in-out infinite;
}
@keyframes nebula {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}
body::after {
  content: '';
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background-image:
    linear-gradient(rgba(5, 217, 232, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5, 217, 232, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -1;
  pointer-events: none;
}

/* ============================================ HEADER ============================================ */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(16, 0, 43, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(5, 217, 232, 0.3);
  transition: all 0.3s ease;
}
header.scrolled {
  background: rgba(10, 0, 24, 0.95);
  box-shadow: 0 4px 30px rgba(5, 217, 232, 0.1);
}

nav {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.8rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; }
.logo-icon {
  width: 40px; height: 40px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  animation: coinSpin 4s linear infinite;
  box-shadow: var(--glow-cyan);
}
@keyframes coinSpin {
  0% { transform: rotateY(0deg); }
  100% { transform: rotateY(360deg); }
}
.logo-text {
  font-family: 'Orbitron', 'Exo 2', sans-serif;
  font-size: 1.2rem; font-weight: 800;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  letter-spacing: 1px;
}

.nav-right { display: flex; align-items: center; gap: 1rem; }

.lang-switch {
  display: flex;
  background: var(--bg-card);
  border: 1px solid rgba(5, 217, 232, 0.3);
  border-radius: 20px;
  overflow: hidden;
}
.lang-btn {
  padding: 0.4rem 0.8rem;
  background: transparent; border: none;
  color: var(--text-dim);
  font-family: 'Rubik', system-ui, sans-serif; font-weight: 600; font-size: 0.9rem;
  cursor: pointer; transition: all 0.3s ease;
}
.lang-btn.active { background: var(--cyan); color: var(--bg-dark); }

.btn-login {
  padding: 0.5rem 1.2rem;
  background: transparent;
  border: 2px solid var(--cyan);
  color: var(--cyan);
  font-family: 'Rubik', system-ui, sans-serif; font-weight: 600; font-size: 0.9rem;
  cursor: pointer; transition: all 0.3s ease;
  text-transform: uppercase; letter-spacing: 1px;
  text-decoration: none; border-radius: 4px;
}
.btn-login:hover { background: var(--cyan); color: var(--bg-dark); box-shadow: var(--glow-cyan); }

.user-menu { display: flex; align-items: center; gap: 0.8rem; }
.btn-user {
  display: flex; align-items: center; gap: 6px;
  padding: 0.5rem 1rem;
  background: rgba(5, 217, 232, 0.15);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: 'Rubik', system-ui, sans-serif; font-weight: 600; font-size: 0.9rem;
  text-decoration: none; border-radius: 4px; transition: all 0.3s ease;
}
.btn-user:hover { background: var(--cyan); color: var(--bg-dark); box-shadow: var(--glow-cyan); }

/* --- группа входа/профиля (вставляет shell.js): всегда в одну линию --- */
.bkc-auth { display: inline-flex; align-items: center; gap: 0.6rem; white-space: nowrap; }
.bkc-profile, .bkc-logout, .bkc-login {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: 'Rubik', system-ui, sans-serif; font-weight: 600; font-size: 0.9rem;
  padding: 0.45rem 1rem; border-radius: 6px; line-height: 1;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: all 0.25s ease;
}
.bkc-profile { background: rgba(5, 217, 232, 0.12); border: 1px solid var(--cyan); color: var(--cyan); max-width: 220px; overflow: hidden; text-overflow: ellipsis; }
.bkc-profile:hover { background: rgba(5, 217, 232, 0.22); }
.bkc-logout { background: transparent; border: 1px solid rgba(255, 42, 109, 0.5); color: var(--pink); }
.bkc-logout:hover { background: var(--pink); color: #fff; box-shadow: var(--glow-pink); }
.bkc-login { background: var(--gradient-cta); border: none; color: #fff; box-shadow: var(--glow-pink); text-transform: uppercase; letter-spacing: 1px; }
.bkc-login:hover { filter: brightness(1.1); }

/* Аватар в шапке (с рамкой) */
.header-avatar-wrapper {
  position: relative; width: 36px; height: 36px;
  display: inline-flex; vertical-align: middle; margin-right: 8px;
}
.header-avatar-wrapper .header-frame {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  object-fit: contain; z-index: 2; pointer-events: none;
}
.header-avatar-wrapper .header-avatar {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 55%; height: 55%;
  border-radius: 50%; object-fit: cover; z-index: 1; filter: brightness(1.2);
}
.header-avatar-wrapper.no-frame .header-avatar {
  width: 85%; height: 85%;
  border: 2px solid var(--cyan);
  box-shadow: 0 0 8px rgba(5, 217, 232, 0.5);
}

/* ---------- ССЫЛКИ МЕНЮ ---------- */
.nav-links { display: flex; align-items: center; gap: 0.3rem; }
.nav-link {
  color: var(--text-dim); text-decoration: none;
  font-family: 'Rubik', system-ui, sans-serif; font-weight: 600; font-size: 0.9rem;
  padding: 0.4rem 0.9rem; border-radius: 6px;
  transition: all 0.3s ease; letter-spacing: 0.5px; white-space: nowrap;
}
.nav-link:hover { color: var(--cyan); background: rgba(5, 217, 232, 0.08); }
.nav-link.disabled { opacity: 0.4; pointer-events: none; position: relative; }
.nav-link .coming-soon {
  font-size: 0.55rem; color: var(--text-muted); letter-spacing: 1px;
  position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%); white-space: nowrap;
}
.nav-link.two-line { position: relative; }
.nav-link .nav-sub {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  font-size: 0.65rem; color: var(--cyan); opacity: 0.7;
  letter-spacing: 0.5px; white-space: nowrap; margin-top: -6px;
}
.nav-link:hover .nav-sub { opacity: 1; }

/* ---------- БУРГЕР ---------- */
.burger {
  display: none; background: none; border: none;
  color: var(--cyan); font-size: 1.5rem; cursor: pointer;
  padding: 0.3rem; transition: all 0.3s ease;
}
.burger:hover { text-shadow: var(--glow-cyan); }

/* ---------- МОБИЛЬНОЕ МЕНЮ ---------- */
.mobile-nav {
  display: none;
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(10, 0, 24, 0.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column; align-items: center; justify-content: center; gap: 1rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav-close {
  position: absolute; top: 1rem; right: 1.5rem;
  background: none; border: none; color: var(--cyan); font-size: 2rem; cursor: pointer;
}
.mobile-nav a {
  color: var(--text); text-decoration: none;
  font-family: 'Rubik', system-ui, sans-serif; font-size: 1.3rem; font-weight: 600;
  padding: 0.8rem 2rem; border-radius: 8px; transition: all 0.3s ease; text-align: center;
}
.mobile-nav a:hover { color: var(--cyan); background: rgba(5, 217, 232, 0.08); }
.mobile-nav .mobile-nav-divider {
  width: 60px; height: 1px; background: rgba(5, 217, 232, 0.2); margin: 0.5rem 0;
}

/* ============================================ АДАПТИВ ШАПКИ ============================================ */
@media (max-width: 600px) {
  nav { padding: 0.6rem 1rem; }
  .logo-text { display: none; }
  .nav-links { display: none; }
  .burger { display: block; }
  /* ФИКС переполнения шапки: язык и вход/профиль уезжают в бургер-меню.
     Скрываем только копии в верхней полосе (.nav-right), в .mobile-nav они остаются. */
  .nav-right .lang-switch,
  .nav-right .bkc-auth { display: none; }
  .nav-right { gap: 0; }
}

/* ============================================================
   PRIMARY (1–4 класи) — світла playful-тема: бірюза + корал
   Вмикається через body[data-segment="primary"]. На 5+ не впливає.
   ============================================================ */
body[data-segment="primary"] {
  background: linear-gradient(180deg, #f0fdfa 0%, #ecfeff 45%, #fff4f1 100%) !important;
  color: #475569 !important;
}
body[data-segment="primary"]::before {
  background:
    radial-gradient(circle at 12% 10%, rgba(20,184,166,.14) 0%, transparent 45%),
    radial-gradient(circle at 88% 14%, rgba(255,107,94,.13) 0%, transparent 45%),
    radial-gradient(circle at 50% 100%, rgba(250,204,21,.12) 0%, transparent 45%) !important;
}
body[data-segment="primary"]::after { background-image: none !important; }

/* --- шапка --- */
body[data-segment="primary"] header {
  background: rgba(255,255,255,.90) !important;
  backdrop-filter: blur(10px);
  border-bottom: 2px solid #b9f2ea !important;
  box-shadow: 0 3px 16px rgba(13,148,136,.12) !important;
}
body[data-segment="primary"] header.scrolled {
  background: rgba(255,255,255,.97) !important;
  box-shadow: 0 4px 22px rgba(13,148,136,.16) !important;
}
body[data-segment="primary"] .logo-icon { box-shadow: 0 3px 10px rgba(13,148,136,.28) !important; }
body[data-segment="primary"] .logo-text {
  font-family: 'Fredoka','Nunito',sans-serif !important;
  color: #0d9488 !important;
  text-shadow: none !important;
  letter-spacing: .5px !important;
}
body[data-segment="primary"] .nav-link {
  font-family: 'Fredoka','Nunito',sans-serif !important;
  font-weight: 600 !important;
  color: #0f766e !important;
  border-radius: 999px !important;
  padding: .45rem 1rem !important;
}
body[data-segment="primary"] .nav-link:hover { background: #ccfbf1 !important; color: #0d9488 !important; }
body[data-segment="primary"] .lang-switch {
  background: #effdfa !important;
  border: 1px solid #99f6e4 !important;
  border-radius: 999px !important;
}
body[data-segment="primary"] .lang-btn { color: #0d9488 !important; }
body[data-segment="primary"] .lang-btn.active {
  background: linear-gradient(135deg,#2dd4bf,#0d9488) !important;
  color: #fff !important;
}
body[data-segment="primary"] .bkc-profile {
  background: #ccfbf1 !important;
  border: 1px solid #5eead4 !important;
  color: #0f766e !important;
  border-radius: 999px !important;
}
body[data-segment="primary"] .bkc-profile:hover { background: #99f6e4 !important; }
body[data-segment="primary"] .bkc-logout {
  border: 1px solid #ffb3a7 !important;
  color: #ff6b5e !important;
  border-radius: 999px !important;
}
body[data-segment="primary"] .bkc-logout:hover { background: #ff6b5e !important; color: #fff !important; box-shadow: none !important; }
body[data-segment="primary"] .bkc-login {
  background: linear-gradient(135deg,#ff8a73,#ff6b5e) !important;
  border-radius: 999px !important;
}
body[data-segment="primary"] .burger { color: #0d9488 !important; }
body[data-segment="primary"] .mobile-nav { background: rgba(255,255,255,.98) !important; }
body[data-segment="primary"] .mobile-nav .nav-link,
body[data-segment="primary"] .mobile-nav a { color: #0f766e !important; }
body[data-segment="primary"] .mobile-nav-close { color: #0d9488 !important; }