:root{
  --blue-700:#1b4881; --blue-600:#214e8a; --blue-500:#2f66b1; --blue-100:#e7eef9;
  --gold-500:#ffc237; --bg:#f6f8fb; --card:#fff; --text:#0f172a; --muted:#64748b; --border:#e2e8f0;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Inter,Roboto,Arial,sans-serif}

/* ===== TOPBAR RESPONSIVENESS ===== */

/* MOBILE: 0-767px - TOPBAR IN COLUMN LAYOUT */
.topbar{
  position:sticky;
  top:0;
  z-index:10;
  display:flex;
  flex-direction:column;
  gap:12px;
  align-items:stretch;
  padding:12px;
  background:#fff;
  border-bottom:1px solid var(--border)
}

.brand{
  display:flex;
  gap:10px;
  align-items:center;
  text-decoration:none;
  justify-content:center
}

.brand-icon{
  width:34px;
  height:34px;
  border-radius:10px;
  display:grid;
  place-items:center;
  font-weight:800;
  background:var(--blue-600);
  color:var(--gold-500)
}

.brand-text{
  font-weight:800;
  color:var(--blue-700);
  font-size:18px
}

.brand-text span{
  color:var(--text);
  font-weight:700
}

.search-group{
  display:flex;
  gap:8px;
  align-items:center;
  width:100%;
  order:3
}

.search-group input[type="search"]{
  flex:1;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:12px;
  background:#fff
}

.search-group input[type="search"]:focus{
  border-color:var(--blue-500);
  outline:0
}

.filters{
  display:flex;
  gap:10px;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  width:100%
}

/* ===== IMPROVED DEPARTMENT SELECTOR ===== */

/* Контейнер селектора */
.custom-select {
  position: relative;
  flex: none;
  min-width: 160px;
}

/* Кнопка селектора - улучшенный дизайн */
.select-btn {
  appearance: none;
  padding: 10px 36px 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 12px center;
  width: 100%;
  cursor: pointer;
  text-align: left;
  font-size: 14px;
  transition: all 0.2s ease;
  color: var(--text);
}

.select-btn:hover {
  border-color: var(--blue-500);
  background-color: var(--blue-100);
}

.select-btn[aria-expanded="true"] {
  border-color: var(--blue-600);
  background-color: var(--blue-100);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23214e8a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m18 15-6-6-6 6'/%3E%3C/svg%3E");
}

/* Выпадающее меню */
.select-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 6px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(0,0,0,.08);
  padding: 6px;
  max-height: 60vh;
  overflow: auto;
  z-index: 1000;
  min-width: 200px;
}

.select-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border: none;
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.15s ease;
  color: var(--text);
}

.select-item:hover {
  background: var(--blue-100);
  color: var(--blue-700);
}

.select-item:active {
  background: var(--blue-500);
  color: #fff;
}

.hidden{
  display:none!important
}

.btn{
  border:none;
  border-radius:12px;
  padding:10px 14px;
  font-weight:700;
  cursor:pointer;
  flex:1;
  min-width:120px;
  max-width:200px;
  text-align:center
}

.btn.primary{
  background:var(--blue-600);
  color:#fff
}

.btn.primary:hover{
  background:var(--blue-700)
}

.btn.outline{
  background:#fff;
  border:1px solid var(--blue-600);
  color:var(--blue-700)
}

.btn.outline:hover{
  background:var(--blue-100)
}

/* ===== УЛУЧШЕННАЯ КНОПКА "СМОТРЕТЬ ВСЕХ" ===== */
.btn.small{
  padding:8px 16px;
  border-radius:10px;
  font-size:13px;
  min-width:110px;
  white-space:nowrap;
  flex-shrink:0;
  transition:all 0.2s ease;
  box-shadow:0 1px 3px rgba(0,0,0,0.1);
}

.btn.small:hover{
  transform:translateY(-1px);
  box-shadow:0 2px 6px rgba(0,0,0,0.15);
}

.btn.small:active{
  transform:translateY(0);
}

.badge{
  padding:8px 12px;
  border-radius:999px;
  background:var(--blue-100);
  color:var(--blue-700);
  font-weight:700;
  border:1px solid var(--border);
  text-align:center;
  flex:1;
  max-width:200px
}

/* ===== TABLET/DESKTOP: 768px+ - TOPBAR IN ROW LAYOUT ===== */
@media (min-width: 768px) {
  .topbar{
    flex-direction:row;
    gap:16px;
    align-items:center;
    padding:12px clamp(12px,4vw,28px)
  }

  .brand{
    justify-content:flex-start
  }

  .search-group{
    width:auto;
    flex:1;
    max-width:640px;
    order:0
  }

  .filters{
    width:auto;
    justify-content:flex-end;
    flex-wrap:nowrap
  }

  .custom-select{
    flex:none;
    min-width:170px;
    max-width:none
  }

  .btn{
    flex:none;
    min-width:auto;
    max-width:none
  }

  .badge{
    flex:none;
    max-width:none
  }

  .select-btn{
    text-align:left
  }

  .select-menu{
    left:auto;
    right:0;
    min-width:260px
  }

  .select-item{
    text-align:left
  }
}

/* ===== VERY SMALL PHONES: 0-359px ===== */
@media (max-width: 359px) {
  .topbar{
    padding:8px;
    gap:8px
  }

  .brand{
    flex-direction:column;
    gap:4px
  }

  .brand-text{
    font-size:16px
  }

  .filters{
    flex-direction:column;
    align-items:stretch
  }

  .custom-select,
  .btn,
  .badge{
    max-width:none;
    min-width:auto
  }
}

/* ===== INTERMEDIATE RESOLUTIONS: 768px-899px ===== */
@media (min-width: 768px) and (max-width: 899px) {
  .topbar{
    flex-wrap: wrap;
    gap: 12px;
  }

  .search-group{
    order: 3;
    flex: 1 1 100%;
    max-width: none;
    margin-top: 8px;
  }
}

#app{padding:24px clamp(12px,4vw,28px) 60px}

/* cards */
.section{margin-bottom:28px}
.section h2{margin:0 0 12px;font-size:22px;color:var(--blue-700)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;align-items:stretch}

/* ===== КАРТОЧКИ С ВЫСОКИМИ РАЗДЕЛИТЕЛЯМИ В ПЕРВОЙ СЕКЦИИ ===== */
.card {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 280px;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
  border: 1px solid var(--border);
  padding: 16px;
  transition: all 0.2s ease;
}

.card:hover{box-shadow:0 6px 16px rgba(0,0,0,.08);transform:translateY(-1px)}

/* Заголовок карточки */
.card-header {
  flex: 0 0 auto;
  min-height: 60px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 10px;
}

.card-header h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
  color: var(--text);
  overflow: visible;
  white-space: normal;
  flex: 1;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.card-header .btn.small {
  flex-shrink: 0;
  margin-top: 4px;
}

/* Контент карточки */
.card-content {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 200px;
}

/* РАЗДЕЛИТЕЛИ - ВЫШЕ в первой секции (топ по характеристикам) */
.card-content .hr {
  flex: 0 0 auto;
  margin: 12px 0; /* Стандартный отступ для всех карточек */
}

/* Специальные стили для первой секции (топ по характеристикам) */
.section:first-child .card .card-content .hr {
  margin: 6px 0 16px 0; /* ВЫШЕ разделитель - меньше отступ сверху, больше снизу */
}

/* Список учителей в карточке */
.teacher-list {
  flex: 1 1 auto;
}

/* Адаптивность для кнопки "Смотреть всех" */
@media (max-width: 480px) {
  .card-header {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    min-height: 90px;
  }

  .card-header h3 {
    min-height: auto;
    text-align: center;
  }

  .card-header .btn.small {
    align-self: center;
    min-width: 140px;
  }
}

@media (max-width: 380px) {
  .card {
    min-height: 250px;
  }

  .card-header .btn.small {
    min-width: 120px;
    padding: 8px 12px;
    font-size: 12px;
  }
}

/* admin */
.admin-dashboard{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.admin-card{display:flex;flex-direction:column;gap:12px}
.admin-card h3{margin:0;color:var(--blue-700)}
.admin-card p{margin:0;color:var(--muted);flex:1}
.admin-card .btn{align-self:flex-start}
.admin-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.admin-tab{border:1px solid var(--border);border-radius:999px;padding:8px 12px;background:#fff;color:var(--muted);text-decoration:none;font-size:14px}
.admin-tab:hover{text-decoration:none;background:var(--blue-100)}
.admin-tab.active{border-color:var(--blue-600);background:var(--blue-100);color:var(--blue-700)}
.admin-split{display:grid;grid-template-columns:minmax(240px,320px) 1fr;gap:16px;align-items:start}
@media (max-width:960px){.admin-split{grid-template-columns:1fr}}
.admin-pane{display:flex;flex-direction:column;gap:12px}
.admin-list{display:flex;flex-direction:column;gap:8px}
.admin-list-item{display:flex;flex-direction:column;align-items:flex-start;gap:4px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff;cursor:pointer;text-align:left;font-size:14px}
.admin-list-item:hover{border-color:var(--blue-500)}
.admin-list-item.active{border-color:var(--blue-600);background:var(--blue-100);box-shadow:0 0 0 2px rgba(47,102,177,.12)}
.admin-list-primary{font-weight:700}
.admin-list-meta{font-size:12px;color:var(--muted)}
.admin-detail-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.admin-comments{display:flex;flex-direction:column;gap:8px}
.admin-user-column{display:flex;flex-direction:column;gap:8px}
.admin-user-card{display:flex;flex-direction:column;gap:6px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff}
.admin-user-card .btn{align-self:flex-start}
.badge.danger{background:#fee2e2;border-color:#fecaca;color:#b91c1c}

.row{display:flex;gap:14px;align-items:center}
.space-between{justify-content:space-between}
.wrap{flex-wrap:wrap}

/* фото 300x379/300x400 */
.portrait{width:80px;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:#000;flex:none}
.portrait img{width:100%;height:100%;object-fit:cover}
.portrait-lg{width:220px;aspect-ratio:3/4;border-radius:16px;overflow:hidden;background:#000}
.portrait-lg img{width:100%;height:100%;object-fit:cover}

.tname{font-weight:800}
.tdept{color:var(--muted);font-size:13px}
.rating{display:inline-flex;gap:6px;align-items:center;font-weight:700}
.star{color:var(--gold-500)}
.link{color:var(--blue-700);text-decoration:none}
.link:hover{text-decoration:underline}

/* lists */
.list-controls{display:flex;gap:8px;margin:6px 0 12px;color:var(--muted)}
.list{display:grid;gap:10px}
.list-item{display:grid;grid-template-columns:92px 1fr auto;gap:12px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:14px;padding:10px 12px}
.list-item .meta{font-size:13px;color:var(--muted)}

/* profile */
.profile{display:grid;grid-template-columns:260px 1fr;gap:22px}
@media (max-width:900px){.profile{grid-template-columns:1fr}}

.kv{background:#fff;border:1px solid var(--border);border-radius:16px;padding:16px}
.kv dt{font-size:12px;color:var(--muted)}
.kv dd{margin:0 0 10px;font-weight:700}

.teacher-request-cta .cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:24px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:16px;
  flex-wrap:wrap
}

.teacher-request-cta .cta-text{
  flex:1 1 240px
}

.teacher-request-cta .cta-text h2{
  margin:0 0 6px;
  font-size:24px
}

.teacher-request-cta .cta-text p{
  margin:0;
  max-width:480px;
  line-height:1.45
}

.teacher-request-cta .cta-card .btn{
  flex:none;
  min-width:180px
}

.teacher-request-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:16px;
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:18px
}

.teacher-request-form{
  display:flex;
  flex-direction:column;
  gap:18px
}

.teacher-request-grid{
  display:grid;
  gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr))
}

.teacher-request-field label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--muted);
  margin-bottom:6px
}

.teacher-request-field input,
.teacher-request-field textarea{
  width:100%;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:12px;
  font-size:14px;
  background:#fff;
  color:var(--text);
  transition:border-color .2s ease, box-shadow .2s ease
}

.teacher-request-field textarea{
  resize:vertical;
  min-height:120px
}

.teacher-request-field input:focus,
.teacher-request-field textarea:focus{
  border-color:var(--blue-500);
  outline:none;
  box-shadow:0 0 0 3px rgba(33,78,138,.12)
}

.teacher-request-field input[type="file"]{
  padding:8px;
  font-size:13px
}

.teacher-request-hint{
  font-size:12px;
  color:var(--muted);
  margin-top:4px
}

.teacher-request-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap
}

.teacher-request-actions .btn{
  flex:none;
  max-width:none
}

.teacher-request-feedback{
  min-height:20px;
  font-size:14px
}

.teacher-request-feedback.success{
  color:#166534
}

.teacher-request-feedback.error{
  color:#b91c1c
}

.teacher-request-note{
  font-size:12px;
  color:var(--muted)
}

@media (max-width:600px){
  .teacher-request-cta .cta-card{
    padding:18px
  }
  .teacher-request-cta .cta-text h2{
    font-size:20px
  }
}

.stars{display:inline-flex;flex-direction:row-reverse;gap:6px}
.stars input{display:none}
.stars label{font-size:22px;color:#c7ced9;cursor:pointer;transition:color .15s}
.stars label:hover,.stars label:hover~label,.stars input:checked~label{color:var(--gold-500)}

.char-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.char-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:12px}
.char-card h4{margin:0 0 4px;font-size:14px;color:var(--blue-700)}
.char-card .current{font-size:13px;color:var(--muted)}

.comment-box textarea{width:100%;min-height:110px;padding:10px 12px;border-radius:12px;border:1px solid var(--border);background:#fff;resize:vertical;font-family:inherit}
.comment{background:#fff;border:1px solid var(--border);border-radius:14px;padding:12px}
.comment .meta{color:var(--muted);font-size:12px}
.comment + .comment{margin-top:8px}

.empty{color:var(--muted);font-style:italic;padding:8px 4px}

/* footer */
.footer{padding:18px clamp(12px,4vw,28px);border-top:1px solid var(--border);color:var(--muted);background:#fff}

/* accessibility */
:focus-visible{outline:2px solid var(--blue-500);outline-offset:2px;border-radius:6px}

/* убрать подчёркивание у кнопок-ссылок */
.btn,
.btn:link,
.btn:visited,
.btn:hover,
.btn:focus {
  text-decoration: none;
}

/* --- Policy / Prose typography --- */
.prose{max-width:900px}
.prose h1{margin:0 0 10px;font-size:26px;color:var(--blue-700)}
.prose h2{margin:18px 0 8px;font-size:18px;color:var(--blue-700)}
.prose p{margin:8px 0 12px;line-height:1.6}
.prose ul{margin:6px 0 12px 18px;line-height:1.6}
.policy .callout{
  margin-top:14px; padding:12px; border:1px solid var(--border);
  background:#fff; border-radius:12px
}

/* --- Small UI helpers --- */
.hr{height:1px;background:var(--border);margin:8px 0}

/* --- Like/Dislike icon buttons --- */
.iconbtn{border:1px solid var(--border);background:#fff;border-radius:999px;padding:6px 10px;font-weight:700;cursor:pointer}
.iconbtn:hover{background:var(--blue-100)}
.iconbtn.active{border-color:var(--blue-600);box-shadow:0 0 0 2px rgba(47,102,177,.12)}
.iconbtn[disabled]{opacity:.5;cursor:not-allowed}

/* --- User profile popover --- */
.popover{
  position:absolute; z-index:20; background:#fff; border:1px solid var(--border);
  border-radius:12px; box-shadow:0 14px 32px rgba(0,0,0,.12); padding:8px; min-width:260px;
}
.popover .popover-inner{padding:4px 6px}
.popover .tname{font-weight:800}
.popover .badge{background:var(--blue-100);border:1px solid var(--border)}
.popover .stats{padding-left:16px;margin:8px 0 6px}
.popover .muted{color:var(--muted)}
table th, table td { border-bottom:1px solid var(--border); padding:8px; text-align:left; font-size:14px }

/* Контейнер учителя */
.teacher-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0;
}

/* Инфо о преподавателе */
.teacher-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tname {
  font-weight: 600;
  font-size: 15px;
}

.tdept {
  color: var(--muted, #64748b);
  font-size: 13px;
}

/* Рейтинг: звёздочка + число */
.rating {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 15px;
}

.rating .star {
  color: var(--gold-500, #ffc237);
  margin-right: 1px;
  font-size: 1.2em;
}

@media (max-width: 600px) {
  .grid, .faculty-grid, .section.grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.faculty-grid, .section.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  align-items: stretch;
  margin-bottom: 28px;
}

/* для универсальности можно сделать так: */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  align-items: stretch;
}


/* Стили для магазина */
.shop-item {
  transition: all 0.3s ease;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

/* Эффект при наведении на карточку товара */
.shop-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

/* Стиль для купленных товаров */
.shop-item.purchased {
  border-color: var(--blue-500);
  background: linear-gradient(135deg, #f8fafc 0%, #e7eef9 100%);
}

/* Стиль для активного ника (текущего) */
.shop-item.active {
  border-color: var(--gold-500);
  background: linear-gradient(135deg, #fff9ed 0%, #fffbeb 100%);
  position: relative;
}

/* Стиль для бейджа "Успех" */
.badge.success {
  background: #dcfce7;
  border-color: #22c55e;
  color: #166534;
  font-weight: 600;
}

/* Статусы в магазине */
.badge.status {
  font-weight: 600;
  padding: 6px 14px;
}

.badge.muted {
  background: #f1f5f9;
  border-color: var(--border);
  color: #475569;
}

/* Стиль для бейджа цены */
.badge.price {
  background: var(--gold-500);
  color: #000;
  font-weight: bold;
}

/* Отступ для кнопок в карточках товаров */
.shop-item .btn.small {
  margin-top: 8px;
  width: 100%;
}

/* Анимация при покупке */
@keyframes purchaseAnimation {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.purchase-effect {
  animation: purchaseAnimation 0.6s ease;
}

/* Стили для секции купленных товаров */
.shop-purchased-section {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 2px solid var(--border);
}

.shop-purchased-section h3 {
  color: var(--blue-700);
  margin-bottom: 16px;
}

/* Стили для списка купленных ников */
.shop-purchased-list .list-item {
  transition: all 0.2s ease;
  border-left: 4px solid transparent;
}

.shop-purchased-list .list-item:hover {
  border-left-color: var(--blue-500);
  background: var(--blue-100);
}

.shop-purchased-list .list-item.active {
  border-left-color: var(--gold-500);
  background: #fff9ed;
}

.purchased-nick {
  grid-template-columns: 1fr auto;
}

.purchased-nick .nick-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.purchased-nick .nick-actions .badge {
  flex: none;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
  .shop-item .card-content {
    padding: 12px;
  }

  .shop-item h3 {
    font-size: 16px;
  }

  .shop-item .btn.small {
    padding: 8px 12px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .grid[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }

  .shop-item {
    margin-bottom: 12px;
  }
}

/* Стили для баланса пользователя */
.balance-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
}

.balance-card .tname {
  color: white !important;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.balance-card .muted {
  color: rgba(255,255,255,0.8) !important;
}

/* Индикатор недостаточно средств */
.insufficient-funds {
  opacity: 0.7;
  position: relative;
}

.insufficient-funds::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.05);
  border-radius: 14px;
}