/* ===== ГЛОБАЛЬНЫЕ ПЕРЕМЕННЫЕ ===== */
:root {
  --bg: #0c0c0f;
  --surface: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e1e1e1;
  --text-secondary: #999;
  --accent: #a78bfa;
  --accent-hover: #c4b5fd;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --transition: 0.3s ease;
}

/* ===== СБРОС И БАЗА ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 40px 20px;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.container {
  width: 100%;
  max-width: 1200px;
}

/* ===== КАСТОМНЫЙ СКРОЛЛБАР ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-hover); }

/* ===== ШАПКА ===== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 40px;
  position: relative;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  transition: transform var(--transition);
}
.brand:hover {
  transform: scale(1.02);
}
.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 8px;
}
.brand-text {
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.5px;
}
.nav-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 20px;
  box-shadow: var(--shadow);
  display: inline-flex;
  margin-left: auto;
}
.nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}
.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition), transform var(--transition);
  position: relative;
}
.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.nav a:hover,
.nav a.active {
  color: #fff;
}
.nav a:hover::after,
.nav a.active::after {
  transform: scaleX(1);
}
.nav .login-btn {
  padding: 8px 18px;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  color: #0c0c0f;
  border-radius: 40px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(167, 139, 250, 0.3);
}
.nav .login-btn:hover {
  background: linear-gradient(135deg, var(--accent-hover), #6366f1);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(167, 139, 250, 0.5);
}

/* ===== БУРГЕР-МЕНЮ ===== */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 100;
}
.burger span {
  width: 28px;
  height: 3px;
  background: var(--text);
  border-radius: 3px;
  transition: all var(--transition);
}
.burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.burger.active span:nth-child(2) {
  opacity: 0;
}
.burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== FLASH-СООБЩЕНИЯ ===== */
.flash {
  padding: 12px 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-weight: 600;
  text-align: center;
  animation: fadeInDown 0.5s ease;
}
.flash.success {
  background: rgba(74, 222, 128, 0.2);
  border: 1px solid #4ade80;
  color: #4ade80;
}
.flash.error {
  background: rgba(248, 113, 113, 0.2);
  border: 1px solid #f87171;
  color: #f87171;
}
.flash.info {
  background: rgba(167, 139, 250, 0.2);
  border: 1px solid var(--accent);
  color: var(--accent);
}

/* ===== КАРТОЧКИ ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.6);
}
.card-header {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.card-title {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: #fff;
}
.card-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}
.btn {
  display: inline-block;
  padding: 8px 20px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 40px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all var(--transition);
  align-self: flex-start;
}
.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0c0c0f;
}
.donors-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.donors-list li {
  transition: color var(--transition);
}
.donors-list li:hover {
  color: #fff;
}
.donors-footer {
  margin-top: auto;
}

/* ===== СТРИМ И ПЛЕЕР ===== */
.stream-wrapper {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
}
.player {
  flex: 2;
  min-width: 300px;
  max-width: 900px;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
  background: #000;
  border: 1px solid var(--border);
}
.preview {
  position: absolute;
  inset: 0;
}
.preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.preview-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.6);
  cursor: pointer;
  transition: background 0.3s;
}
.preview-overlay:hover {
  background: rgba(0, 0, 0, 0.8);
}
.play-btn {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  box-shadow: 0 0 20px rgba(167, 139, 250, 0.4);
  transition: transform var(--transition), box-shadow var(--transition);
}
.preview-overlay:hover .play-btn {
  transform: scale(1.1);
  box-shadow: 0 0 40px rgba(167, 139, 250, 0.6);
}
.preview-text {
  margin-top: 16px;
  font-weight: 600;
  color: #fff;
}
.chat {
  flex: 1;
  min-width: 280px;
  max-width: 320px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #000;
  border: 1px solid var(--border);
}
.chat iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ===== ГРИД ===== */
.row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

/* ===== ЗАГОЛОВКИ ===== */
.section-title {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 30px;
}

/* ===== КНОПКИ ПОДЕЛИТЬСЯ ===== */
.share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 16px;
}
.share-buttons span {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-right: 8px;
}
.share-btn {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  color: #fff;
  transition: all var(--transition);
}
.share-btn.vk {
  background: #4a76a8;
}
.share-btn.vk:hover {
  background: #3b6090;
  transform: translateY(-2px);
}
.share-btn.tg {
  background: #0088cc;
}
.share-btn.tg:hover {
  background: #006b9f;
  transform: translateY(-2px);
}
.share-btn.tw {
  background: #000;
}
.share-btn.tw:hover {
  background: #333;
  transform: translateY(-2px);
}

/* ===== ПОИСК ===== */
.search-form {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.search-form input {
  flex: 1;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 40px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.2);
}
.search-form button {
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  border: none;
  border-radius: 40px;
  color: #0c0c0f;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.9rem;
}
.search-form button:hover {
  background: linear-gradient(135deg, var(--accent-hover), #6366f1);
  transform: translateY(-2px);
}

/* ===== КНОПКА НАВЕРХ ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  color: #0c0c0f;
  border: none;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(167, 139, 250, 0.4);
  transition: all var(--transition);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: scale(1.1) translateY(-4px);
  box-shadow: 0 6px 24px rgba(167, 139, 250, 0.6);
}

/* ===== АНИМАЦИЯ ПОЯВЛЕНИЯ ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== УЛУЧШЕННЫЕ ФОРМЫ ===== */
input, textarea {
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.2);
}
button[type="submit"] {
  background: linear-gradient(135deg, var(--accent), #818cf8);
  border: none;
  color: #0c0c0f;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
button[type="submit"]:hover {
  background: linear-gradient(135deg, var(--accent-hover), #6366f1);
  transform: translateY(-2px);
}

/* ===== АДАПТИВНОСТЬ ===== */
@media (max-width: 1024px) {
  .container { max-width: 100%; }
  .row { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
}

@media (max-width: 768px) {
  body { padding: 20px 10px; }
  .header { flex-direction: row; align-items: center; }
  .burger { display: flex; }
  .nav-block {
    display: none;
    width: 100%;
    margin-left: 0;
    order: 3;
    flex-basis: 100%;
    justify-content: center;
    background: var(--surface);
    backdrop-filter: blur(12px);
  }
  .nav-block.open {
    display: flex;
  }
  .nav {
    flex-direction: column;
    gap: 12px;
    width: 100%;
    align-items: center;
  }
  .nav a { font-size: 1rem; }
  .nav .login-btn { margin-left: 0; }
  .stream-wrapper { flex-direction: column; }
  .player { min-width: 100%; }
  .chat { max-width: 100%; min-width: 100%; height: 400px; }
  .search-form { flex-direction: column; max-width: 100%; }
  .search-form button { width: 100%; }
  .share-buttons { justify-content: center; }
  .back-to-top { width: 44px; height: 44px; font-size: 20px; bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  body { padding: 10px 5px; }
  .container { padding: 0; }
  .header { gap: 10px; margin-bottom: 20px; }
  .brand-text { font-size: 1rem; }
  .nav-block { padding: 8px 12px; }
  .nav a { font-size: 0.9rem; }
  .nav .login-btn { padding: 6px 14px; font-size: 0.8rem; }
  .card { padding: 16px; }
  .section-title { font-size: 1.2rem; margin-bottom: 20px; }
  .flash { font-size: 0.9rem; padding: 10px 16px; }
}

/* === FALLBACK: если JS не работает, показываем элементы === */
.fade-in {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* === FALLBACK: навигация на десктопе всегда видна === */
@media (min-width: 769px) {
  .nav-block {
    display: inline-flex !important;
  }
}}