/* ============ ОСНОВНЫЕ СТИЛИ ============ */
:root{
  --primary:#ff9a3c;
  --primary-dark:#e07a1a;
  --secondary:#4ec5d4;
  --accent:#ff6b9d;
  --bg:#fff8f0;
  --text:#2c3e50;
  --card:#ffffff;
  --shadow:0 4px 15px rgba(0,0,0,.08);
  --radius:16px;
  --font-size:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
html,body{overflow-x:hidden}
body{
  font-family:'Segoe UI','Roboto',Tahoma,sans-serif;
  font-size:var(--font-size);
  line-height:1.6;
  color:var(--text);
  background:var(--bg);
  transition:all .3s ease;
}
img{max-width:100%;display:block}
a{color:var(--primary-dark);text-decoration:none;transition:.2s}
a:hover{color:var(--accent);text-decoration:underline}

/* ============ ВЕРСИЯ ДЛЯ СЛАБОВИДЯЩИХ ============ */
body.a11y-large{font-size:22px}
body.a11y-xlarge{font-size:26px}
body.a11y-contrast{background:#000!important;color:#fff!important}
body.a11y-contrast *{background:#000!important;color:#fff!important;border-color:#ffff00!important}
body.a11y-contrast a{color:#ffff00!important;text-decoration:underline}
body.a11y-contrast .card,body.a11y-contrast header,body.a11y-contrast footer,
body.a11y-contrast .modal-content{background:#1a1a1a!important;border:2px solid #ffff00!important}
body.a11y-grayscale{filter:grayscale(100%)}
body.a11y-noimages img{display:none}
body.a11y-nospacing{letter-spacing:2px;line-height:2.2}
body.a11y-noanimation,body.a11y-noanimation *{animation:none!important;transition:none!important}

/* Панель доступности (ДЕСКТОП — справа вертикально) */
.a11y-panel{
  position:fixed;right:20px;bottom:20px;z-index:9999;
  background:#fff;border-radius:50px;
  box-shadow:0 6px 25px rgba(0,0,0,.2);
  padding:8px;
  display:flex;flex-direction:column;gap:6px;
}
.a11y-btn{
  width:48px;height:48px;border-radius:50%;
  border:2px solid var(--primary);
  background:#fff;color:var(--primary-dark);
  font-size:18px;font-weight:bold;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:.2s;
}
.a11y-btn:hover,.a11y-btn.active{background:var(--primary);color:#fff;transform:scale(1.05)}
.a11y-btn:focus{outline:3px solid #ffeb3b;outline-offset:2px}

/* Skip-link */
.skip-link{
  position:absolute;left:-9999px;top:0;
  background:#000;color:#fff;padding:12px 20px;
  z-index:10000;font-weight:bold;
}
.skip-link:focus{left:0}

/* Скрытый текст */
.sr-only{
  position:absolute;width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* ============ ХЕДЕР ============ */
header{
  background:linear-gradient(135deg,#ff9a3c 0%,#ff6b9d 100%);
  color:#fff;padding:0;box-shadow:var(--shadow);
  position:sticky;top:0;z-index:100;
}
.header-top{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 20px;flex-wrap:wrap;gap:15px;
}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{
  width:55px;height:55px;background:#fff;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:30px;color:#ff9a3c;
}
.logo-text h1{font-size:1.4rem;font-weight:bold}
.logo-text p{font-size:.85rem;opacity:.95}

nav{background:rgba(0,0,0,.15)}
nav ul{
  max-width:1200px;margin:0 auto;
  list-style:none;display:flex;flex-wrap:wrap;
}
nav li{flex:1;min-width:130px}
nav a{
  display:block;padding:14px 10px;text-align:center;
  color:#fff;font-weight:600;border-right:1px solid rgba(255,255,255,.15);
  transition:.2s;
}
nav li:last-child a{border-right:none}
nav a:hover,nav a:focus{background:rgba(0,0,0,.25);text-decoration:none;color:#fff}
nav a.active{background:rgba(0,0,0,.3)}

/* Кнопка-гамбургер — на десктопе СКРЫТА */
.menu-toggle{
  display:none;
  background:rgba(0,0,0,.2);
  color:#fff;border:none;
  padding:12px;width:100%;
  cursor:pointer;font-size:1.1rem;font-weight:bold;
}
.menu-toggle::before{content:"☰  Меню"}
.menu-toggle.active::before{content:"✕  Закрыть"}

/* Кнопка списка чатов — на десктопе СКРЫТА */
.chat-list-toggle{
  margin-left:auto;
  background:var(--primary);color:#fff;
  border:none;width:36px;height:36px;border-radius:50%;
  cursor:pointer;font-size:1.2rem;
  display:none;align-items:center;justify-content:center;
}

/* ============ ОСНОВНОЙ КОНТЕНТ ============ */
main{max-width:1200px;margin:0 auto;padding:30px 20px}
section{margin-bottom:50px;scroll-margin-top:80px}
h2{
  font-size:1.8rem;margin-bottom:20px;color:var(--primary-dark);
  border-bottom:3px solid var(--secondary);padding-bottom:10px;
  display:inline-block;
}
h3{font-size:1.2rem;margin-bottom:10px;color:var(--text)}

.hero{
  background:linear-gradient(rgba(255,154,60,.15),rgba(78,197,212,.15));
  border-radius:var(--radius);padding:50px 30px;
  text-align:center;margin-bottom:40px;
}
.hero h2{font-size:2.2rem;border:none;margin-bottom:15px}
.hero p{font-size:1.1rem;max-width:700px;margin:0 auto 20px}
.btn{
  display:inline-block;padding:12px 28px;
  background:var(--primary);color:#fff;
  border-radius:30px;font-weight:bold;border:none;
  cursor:pointer;font-size:1rem;transition:.2s;
}
.btn:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);text-decoration:none}
.btn:focus{outline:3px solid #ffeb3b;outline-offset:3px}
.btn-secondary{background:var(--secondary)}

.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}

.card{
  background:var(--card);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:25px;
  transition:transform .2s,box-shadow .2s;
  border-top:4px solid var(--secondary);
}
.card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.12)}
.card-icon{
  width:60px;height:60px;border-radius:50%;
  background:linear-gradient(135deg,#ff9a3c,#ff6b9d);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:28px;margin-bottom:15px;
}

/* Группы */
.groups-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.group-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s}
.group-card:hover{transform:translateY(-5px)}
.group-banner{
  height:120px;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:3rem;font-weight:bold;
}
.group-content{padding:20px}
.group-content h3{margin-bottom:8px}
.group-meta{font-size:.9rem;color:#666;margin:5px 0}
.group-meta strong{color:var(--primary-dark)}

/* Новости */
.news-item{
  display:grid;grid-template-columns:120px 1fr;gap:20px;
  background:#fff;padding:20px;border-radius:var(--radius);
  box-shadow:var(--shadow);margin-bottom:15px;
}
.news-date{
  background:linear-gradient(135deg,#ff9a3c,#ff6b9d);
  color:#fff;border-radius:10px;
  display:flex;flex-direction:column;align-items:center;
  justify-content:center;padding:10px;
}
.news-date .day{font-size:2rem;font-weight:bold;line-height:1}
.news-date .month{font-size:.9rem;text-transform:uppercase}

/* Галерея */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:15px}
.gallery-item{
  position:relative;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:1/1;cursor:pointer;
  box-shadow:var(--shadow);background:#ccc;
  transition:transform .2s;margin:0;
}
.gallery-item:hover{transform:scale(1.03)}
.gallery-item:focus{outline:3px solid var(--primary);outline-offset:3px}
.gallery-item img{width:100%;height:100%;object-fit:cover}
.gallery-caption{
  position:absolute;bottom:0;left:0;right:0;
  background:linear-gradient(transparent,rgba(0,0,0,.8));
  color:#fff;padding:15px 10px 10px;font-size:.9rem;line-height:1.3;
}
.gallery-tag{position:absolute;top:8px;left:8px;background:var(--accent);color:#fff;padding:4px 10px;border-radius:20px;font-size:.75rem}

/* Чат */
.chat-container{
  background:#fff;border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  display:grid;grid-template-columns:280px 1fr;
  min-height:500px;
}
.chat-sidebar{background:#f5f5f5;padding:15px;border-right:1px solid #e0e0e0;overflow-y:auto}
.chat-sidebar h3{margin-bottom:15px;color:var(--primary-dark)}
.chat-user{
  display:flex;align-items:center;gap:10px;
  padding:10px;border-radius:10px;cursor:pointer;
  transition:.2s;margin-bottom:5px;
}
.chat-user:hover,.chat-user.active{background:var(--primary);color:#fff}
.avatar{
  width:40px;height:40px;border-radius:50%;
  background:linear-gradient(135deg,#ff9a3c,#ff6b9d);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:bold;flex-shrink:0;
}
.chat-main{display:flex;flex-direction:column}
.chat-header{
  padding:15px 20px;border-bottom:1px solid #e0e0e0;
  background:#fafafa;font-weight:bold;
  display:flex;align-items:center;gap:10px;
}
.chat-messages{
  flex:1;padding:20px;overflow-y:auto;
  display:flex;flex-direction:column;gap:12px;
  max-height:400px;
}
.message{
  max-width:70%;padding:10px 15px;border-radius:18px;
  word-wrap:break-word;
}
.message.in{background:#f0f0f0;align-self:flex-start;border-bottom-left-radius:4px}
.message.out{background:var(--primary);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.message-sender{font-size:.75rem;opacity:.7;margin-bottom:3px}
.message-time{font-size:.7rem;opacity:.6;margin-top:3px}
.chat-input{
  display:flex;gap:10px;padding:15px;
  border-top:1px solid #e0e0e0;background:#fafafa;
}
.chat-input input{
  flex:1;padding:10px 15px;border:1px solid #ddd;
  border-radius:25px;font-size:1rem;font-family:inherit;
}
.chat-input input:focus{outline:2px solid var(--primary);border-color:var(--primary)}
.chat-input button{
  padding:10px 20px;background:var(--primary);color:#fff;
  border:none;border-radius:25px;cursor:pointer;font-weight:bold;
}
.chat-notice{
  background:#fff3cd;border-left:4px solid #ffc107;
  padding:10px 15px;margin-bottom:15px;border-radius:8px;
  font-size:.9rem;
}

/* Футер */
footer{background:#2c3e50;color:#fff;padding:40px 20px 20px;margin-top:50px}
.footer-grid{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:30px;margin-bottom:30px;
}
footer h4{margin-bottom:12px;color:var(--primary)}
footer a{color:#ccc}
footer a:hover{color:#fff}
.footer-bottom{
  text-align:center;padding-top:20px;
  border-top:1px solid #444;color:#aaa;font-size:.9rem;
  max-width:1200px;margin:0 auto;
}

/* ============ БОЛЬШОЕ МОДАЛЬНОЕ ОКНО ============ */
.modal{
  display:none;position:fixed;inset:0;
  background:rgba(0,0,0,.92);z-index:1000;
  align-items:center;justify-content:center;padding:20px;
}
.modal.open{display:flex}
.modal-content{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  max-width:95vw;max-height:90vh;width:auto;height:auto;
}
#modalImg{
  max-width:95vw;max-height:80vh;width:auto;height:auto;
  object-fit:contain;border-radius:8px;
  box-shadow:0 10px 40px rgba(0,0,0,.5);
}
#modalCaption{
  margin-top:15px;text-align:center;font-weight:bold;
  color:#fff;font-size:1.1rem;max-width:90vw;
}
.modal-close{
  position:absolute;top:20px;right:20px;
  background:var(--accent);color:#fff;border:none;
  width:50px;height:50px;border-radius:50%;
  cursor:pointer;font-size:1.5rem;z-index:10;
  display:flex;align-items:center;justify-content:center;
  transition:.2s;box-shadow:0 4px 15px rgba(0,0,0,.3);
}
.modal-close:hover{transform:scale(1.1);background:#e05585}
.modal-close:focus{outline:3px solid #ffeb3b;outline-offset:3px}
.modal-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  background:rgba(255,255,255,.2);color:#fff;
  border:2px solid rgba(255,255,255,.4);
  width:60px;height:60px;border-radius:50%;
  cursor:pointer;font-size:2.5rem;font-weight:bold;z-index:10;
  display:flex;align-items:center;justify-content:center;
  transition:.2s;backdrop-filter:blur(5px);
}
.modal-prev{left:20px}
.modal-next{right:20px}
.modal-nav:hover{background:rgba(255,255,255,.4);border-color:#fff;transform:translateY(-50%) scale(1.1)}
.modal-nav:focus{outline:3px solid #ffeb3b;outline-offset:3px}

/* ============ МОБИЛЬНАЯ ВЕРСИЯ ============ */

/* Планшеты */
@media (max-width: 992px) {
  .hero h2 { font-size: 1.8rem; }
  .hero p { font-size: 1rem; }
  h2 { font-size: 1.5rem; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Телефоны */
@media (max-width: 768px) {

  /* Хедер */
  .header-top {
    flex-direction: column;
    text-align: center;
    gap: 10px;
    padding: 12px 15px;
  }
  .logo { flex-direction: column; gap: 8px; }
  .logo-icon { width: 50px; height: 50px; font-size: 26px; }
  .logo-text h1 { font-size: 1.2rem; }
  .logo-text p { font-size: 0.8rem; }
  .header-top .btn { width: 100%; }

  /* Навигация - гамбургер ПОКАЗЫВАЕТСЯ */
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  nav ul {
    display: none;
    flex-direction: column;
    background: rgba(0,0,0,.15);
  }
  nav ul.open { display: flex; }
  nav li { min-width: 100%; }
  nav a {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,.15);
    padding: 14px 15px;
    text-align: left;
  }

  /* Сетки */
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .groups-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 20px; }

  /* Карточки */
  .card { padding: 18px; }

  /* Новости */
  .news-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .news-date {
    flex-direction: row;
    gap: 12px;
    padding: 8px 14px;
    width: fit-content;
  }
  .news-date .day { font-size: 1.5rem; }
  .news-date .month { font-size: 0.85rem; }

  /* Чат */
  .chat-container {
    grid-template-columns: 1fr;
    min-height: 400px;
  }

  /* Кнопка списка чатов ПОКАЗЫВАЕТСЯ */
  .chat-list-toggle { display: flex; }

  /* Сайдбар чата СКРЫВАЕТСЯ по умолчанию */
  .chat-sidebar {
    display: none;
    border-right: none;
    border-bottom: 1px solid #e0e0e0;
  }
  .chat-sidebar.open { display: block; }

  .chat-header {
    padding: 10px 14px;
    flex-wrap: wrap;
    gap: 8px;
  }
  .chat-messages {
    max-height: 350px;
    padding: 14px;
  }
  .message { max-width: 85%; }

  .chat-input {
    padding: 10px;
    flex-wrap: wrap;
  }
  .chat-input input { font-size: 16px; }
  .chat-input button {
    width: 100%;
    padding: 12px;
  }

  /* Галерея */
  .gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .gallery-caption { font-size: 0.8rem; padding: 10px 6px 6px; }
  .gallery-tag { font-size: 0.65rem; padding: 3px 8px; }

  /* Модалка */
  .modal { padding: 10px; }
  .modal-content { max-width: 100vw; max-height: 100vh; }
  #modalImg { max-height: 65vh; }
  .modal-close {
    width: 40px; height: 40px;
    font-size: 1.2rem;
    top: 10px; right: 10px;
  }
  .modal-nav {
    width: 45px; height: 45px;
    font-size: 1.8rem;
  }
  .modal-prev { left: 5px; }
  .modal-next { right: 5px; }

  /* Панель доступности - внизу горизонтально */
  .a11y-panel {
    right: 50%;
    bottom: 10px;
    transform: translateX(50%);
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    border-radius: 25px;
    max-width: 95vw;
  }
  .a11y-btn {
    width: 42px; height: 42px;
    font-size: 16px;
  }

  /* Футер */
  footer { padding: 30px 15px 15px; }
  .footer-bottom { font-size: 0.8rem; padding: 0 10px; }

  /* Кнопки - крупнее для пальцев */
  .btn {
    padding: 14px 24px;
    font-size: 1rem;
    width: 100%;
    margin: 5px 0;
  }
  .hero .btn { width: auto; min-width: 200px; }
}

/* Маленькие телефоны */
@media (max-width: 380px) {
  .gallery {
    grid-template-columns: 1fr;
  }
  .a11y-panel {
    padding: 6px;
  }
  .a11y-btn {
    width: 38px; height: 38px;
    font-size: 14px;
  }
  .logo-text h1 { font-size: 1.1rem; }
}