/* ==========================================================================
   TG Client — стили (БЭМ)
   Block__Element--Modifier
   ========================================================================== */

/* --- Иконки --- */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}
.icon-sm { font-size: 18px; }
.icon-md { font-size: 22px; }
.icon-lg { font-size: 28px; }

/* --- Переменные (Telegram Web dark theme) --- */
:root {
  --tg-bg: #17212b;
  --tg-panel: #0e1621;
  --tg-surface: #242f3d;
  --tg-surface-hover: #2b5278;
  --tg-chat-hover: #202b36;
  --tg-chat-active: #2b5278;
  --tg-border: #242f3d;
  --tg-text: #f5f5f5;
  --tg-text-secondary: #708499;
  --tg-accent: #5288c1;
  --tg-accent-hover: #6ab3f3;
  --tg-outgoing: #2b5278;
  --tg-incoming: #182533;
  --tg-error: #ec3942;
  --tg-success: #4caf50;
  --radius: 8px;
  --sidebar-w: 62px;
  --chat-list-w: 380px;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--tg-bg);
  color: var(--tg-text);
  margin: 0;
  min-height: 100vh;
  overflow: hidden;
}

a {
  color: var(--tg-accent);
  text-decoration: none;
}
a:hover { color: var(--tg-accent-hover); }

/* --- Block: app (layout) --- */
.app {
  display: flex;
  height: 100vh;
  min-height: 0;
}
.app__root {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  min-height: 200px;
}

/* --- Block: sidebar --- */
.sidebar {
  width: var(--sidebar-w);
  background: var(--tg-panel);
  border-right: 1px solid var(--tg-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  flex-shrink: 0;
}
.sidebar__link {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tg-text-secondary);
  margin: 4px 0;
  font-size: 1.25rem;
}
.sidebar__link:hover {
  background: var(--tg-surface);
  color: var(--tg-text);
}
.sidebar__link--active {
  background: var(--tg-accent);
  color: #fff;
}

/* --- Block: chat-list --- */
.chat-list {
  width: var(--chat-list-w);
  background: var(--tg-bg);
  border-right: 1px solid var(--tg-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  min-width: 0;
}
.chat-list--hidden { display: none; }
.chat-list__header {
  padding: 12px 16px;
  min-height: 56px;
  border-bottom: 1px solid var(--tg-border);
  display: flex;
  align-items: center;
  background: var(--tg-bg);
}
.chat-list__header-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  color: var(--tg-text);
}
.chat-list__search {
  position: relative;
  padding: 8px 12px;
  border-bottom: 1px solid var(--tg-border);
}
.chat-list__search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--tg-text-secondary);
  pointer-events: none;
}
.chat-list__search-input {
  width: 100%;
  padding: 10px 14px 10px 40px;
  border: none;
  border-radius: 20px;
  background: var(--tg-surface);
  color: var(--tg-text);
  font-size: 0.9375rem;
  outline: none;
}
.chat-list__search-input::placeholder {
  color: var(--tg-text-secondary);
}
.chat-list__body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
}
.chat-list__item {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  gap: 12px;
  cursor: pointer;
  border: none;
  border-bottom: 1px solid var(--tg-border);
  background: none;
  color: inherit;
  text-align: left;
  width: 100%;
  font: inherit;
  text-decoration: none;
  transition: background 0.1s;
}
.chat-list__item:hover { background: var(--tg-chat-hover); }
.chat-list__item--active { background: var(--tg-chat-active); }
.chat-list__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--tg-surface);
  color: var(--tg-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  font-weight: 600;
  flex-shrink: 0;
  overflow: hidden;
}
.chat-list__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.chat-list__info { flex: 1; min-width: 0; }
.chat-list__title {
  font-weight: 500;
  font-size: 0.9375rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chat-list__preview {
  font-size: 0.8125rem;
  color: var(--tg-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chat-list__time {
  font-size: 0.75rem;
  color: var(--tg-text-secondary);
  flex-shrink: 0;
}
.chat-list__pagination {
  padding: 8px 16px;
  border-top: 1px solid var(--tg-border);
}

/* --- Block: main (main panel) --- */
.main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--tg-bg);
}
.main__header {
  min-height: 56px;
  padding: 0 16px;
  border-bottom: 1px solid var(--tg-border);
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--tg-bg);
}
.main__header-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}
.main__back {
  display: none; /* на десктопе скрыта, на мобильном показывается в @media */
}
.main__messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

/* --- Block: message (bubble) --- */
.message-wrap {
  max-width: 65%;
  min-width: 120px;
}
.message-wrap--outgoing { align-self: flex-end; }
.message {
  padding: 6px 10px;
  border-radius: 12px;
  font-size: 0.9375rem;
  line-height: 1.4;
  word-break: break-word;
}
.message--incoming {
  background: var(--tg-incoming);
  border-top-left-radius: 4px;
}
.message--outgoing {
  background: var(--tg-outgoing);
  border-top-right-radius: 4px;
}
.message__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 2px;
  flex-wrap: wrap;
}
.message__time {
  font-size: 0.6875rem;
  color: var(--tg-text-secondary);
}
.message__detail-link {
  font-size: 0.6875rem;
  color: var(--tg-text-secondary);
}
.message__detail-link:hover { color: var(--tg-accent); }
.message__media-tag {
  font-size: 0.75rem;
  color: var(--tg-text-secondary);
  margin-top: 2px;
}
.message-divider {
  width: 100%;
  text-align: center;
  margin: 8px 0 4px;
}
.message-divider__label {
  font-size: 0.75rem;
  color: var(--tg-text-secondary);
  padding: 2px 10px;
  border-radius: 10px;
  background: var(--tg-surface);
}

/* --- Block: media (inside message) --- */
.media {
  margin: 4px 0;
  padding: 6px 8px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 8px;
}
.media__icon {
  color: var(--tg-text-secondary);
  flex-shrink: 0;
}
.media__preview {
  width: 120px;
  height: 80px;
  border-radius: 6px;
  background: var(--tg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tg-text-secondary);
  font-size: 0.75rem;
  overflow: hidden;
}
.media__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.media--file .media__name { font-weight: 500; font-size: 0.875rem; }
.media--file .media__size { font-size: 0.75rem; color: var(--tg-text-secondary); }
.media--file .media__open-link { font-size: 0.75rem; margin-top: 4px; }
.media--file .media__preview-img {
  max-width: 200px;
  max-height: 150px;
  border-radius: 6px;
  margin-top: 4px;
  display: block;
  object-fit: contain;
}
.media--voice .media__duration,
.media--video .media__duration {
  font-size: 0.8125rem;
  color: var(--tg-text-secondary);
}

/* --- Block: file-row (downloads list) --- */
.file-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--tg-surface);
  border-radius: var(--radius);
  margin-bottom: 8px;
}
.file-row__icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--tg-chat-hover);
  color: var(--tg-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.file-row__info { flex: 1; min-width: 0; }
.file-row__name { font-weight: 500; }
.file-row__meta { font-size: 0.8125rem; color: var(--tg-text-secondary); }
.file-row__status {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--tg-chat-hover);
  color: var(--tg-text-secondary);
}
.file-row__status--done {
  background: rgba(76, 175, 80, 0.2);
  color: var(--tg-success);
}
.file-row__status--load {
  background: rgba(82, 136, 193, 0.2);
  color: var(--tg-accent);
}

/* --- Block: content (content area) --- */
.content {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 24px;
}
.content--center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.content__title {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 8px;
}
.content__title--sm {
  font-size: 1.125rem;
  margin: 1rem 0 0.5rem;
}
.content__title-icon {
  vertical-align: middle;
  margin-right: 8px;
}
.content__title--sm .content__title-icon {
  margin-right: 4px;
}
.content__meta {
  color: var(--tg-text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* --- Block: panel --- */
.panel {
  background: var(--tg-surface);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

/* --- Block: detail --- */
.detail__row {
  margin: 0.25rem 0;
  font-size: 0.9375rem;
}
.detail__label {
  color: var(--tg-text-secondary);
  margin-right: 0.5rem;
}

/* --- Block: btn --- */
.btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  font-size: 0.875rem;
  cursor: pointer;
  background: var(--tg-accent);
  color: #fff;
  text-decoration: none;
  display: inline-block;
}
.btn:hover { background: var(--tg-accent-hover); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn--secondary {
  background: var(--tg-surface);
  color: var(--tg-text);
}
.btn--secondary:hover { background: var(--tg-surface-hover); }
.btn--sm {
  margin-top: 4px;
  font-size: 0.75rem;
  margin-left: 4px;
}

/* --- Block: card --- */
.card {
  background: var(--tg-surface);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  border: 1px solid transparent;
}
.card:hover { background: var(--tg-chat-hover); }
.card a { text-decoration: none; color: inherit; flex: 1; min-width: 0; }
.card__left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}
.card__title { font-weight: 500; }
.card__meta,
.card__hash {
  font-size: 0.8125rem;
  color: var(--tg-text-secondary);
}
.card__icon { flex-shrink: 0; }

/* --- Block: breadcrumb --- */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--tg-text-secondary);
  margin-bottom: 1rem;
}
.breadcrumb a { color: var(--tg-text-secondary); }
.breadcrumb a:hover { color: var(--tg-accent); }

/* --- Block: pagination --- */
.pagination {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}
.pagination__text {
  color: var(--tg-text-secondary);
  font-size: 0.875rem;
}

/* --- Utilities --- */
.empty {
  color: var(--tg-text-secondary);
  padding: 2rem;
  text-align: center;
}
.empty__icon {
  display: block;
  margin-bottom: 8px;
  opacity: 0.5;
}
.files-filters {
  margin-bottom: 1rem;
}
.loading { color: var(--tg-text-secondary); }
.error { color: var(--tg-error); font-size: 0.875rem; }

/* --- Block: media-viewer --- */
.media-viewer {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 2rem;
}
.media-viewer[aria-hidden="false"] {
  display: flex;
}
.media-viewer__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 48px;
  height: 48px;
  padding: 0;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: var(--tg-text);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.media-viewer__close:hover {
  background: rgba(255, 255, 255, 0.25);
}
.media-viewer__content {
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.media-viewer__img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius);
}
.media-viewer__video {
  max-width: 100%;
  max-height: 90vh;
  border-radius: var(--radius);
}
.media-viewer__audio {
  min-width: 320px;
  max-width: 100%;
}
[data-media-view-src] {
  cursor: pointer;
}

/* --- Block: modal --- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
}
.message-detail__json {
  font-size: 0.75rem;
  overflow: auto;
  max-height: 200px;
}
.modal__content {
  background: var(--tg-surface);
  border: 1px solid var(--tg-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 500px;
  max-height: 80vh;
  overflow: auto;
}
.modal__actions {
  margin-top: 0.5rem;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* --- Адаптив: планшет --- */
@media (max-width: 1024px) {
  :root {
    --chat-list-w: 320px;
  }
  .content { padding: 16px; }
  .message-wrap { max-width: 75%; }
  .media--file .media__preview-img {
    max-width: 160px;
    max-height: 120px;
  }
}

/* --- Адаптив: мобильный --- */
@media (max-width: 768px) {
  :root {
    --chat-list-w: 100%;
  }

  .sidebar {
    width: 56px;
    padding: 6px 0;
  }
  .sidebar__link {
    width: 44px;
    height: 44px;
    margin: 2px 0;
  }

  /* На мобильном в режиме чата скрываем список чатов, показываем только переписку */
  .app--messages-view .chat-list {
    display: none !important;
  }
  .app--messages-view .main {
    flex: 1;
    min-width: 0;
  }

  .main__header {
    padding-left: 8px;
    padding-right: 8px;
    min-height: 52px;
    gap: 8px;
  }
  .main__header-title {
    font-size: 0.9375rem;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .main__back {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    color: var(--tg-text);
    border-radius: 50%;
    transition: background 0.15s;
  }
  .main__back:hover {
    background: var(--tg-surface);
    color: var(--tg-text);
  }
  .main__messages {
    padding: 6px 8px;
    gap: 6px;
  }
  .message-wrap {
    max-width: 88%;
    min-width: 100px;
  }
  .message {
    padding: 6px 10px;
    font-size: 0.875rem;
  }

  .content {
    padding: 16px 12px;
  }
  .content__title {
    font-size: 1.25rem;
  }
  .content__title--sm {
    font-size: 1rem;
  }
  .panel {
    padding: 0.75rem;
  }
  .card {
    padding: 10px 12px;
    gap: 0.5rem;
  }
  .btn {
    padding: 8px 12px;
    font-size: 0.8125rem;
  }
  .file-row {
    flex-wrap: wrap;
    padding: 10px 12px;
    gap: 8px;
  }
  .file-row__status {
    order: 3;
    width: 100%;
    margin-top: 4px;
  }
  .file-row__btn-download {
    flex-shrink: 0;
  }
  .chat-list__item {
    padding: 10px 12px;
    gap: 10px;
  }
  .chat-list__avatar {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }
  .chat-list__title {
    font-size: 0.875rem;
  }
  .modal__content {
    max-width: 100%;
    margin: 0.5rem;
    max-height: 85vh;
    padding: 1rem;
  }
  .media-viewer {
    padding: 1rem;
  }
  .media-viewer__close {
    top: 0.5rem;
    right: 0.5rem;
    width: 44px;
    height: 44px;
  }
  .media-viewer__audio {
    min-width: 260px;
  }
}

/* --- Block: panel (модификатор для формы входа) --- */
.panel--narrow {
  max-width: 360px;
}

/* --- Страница входа: центрирование и фон --- */
.page-login .main--login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(160deg, var(--tg-bg) 0%, var(--tg-panel) 50%, var(--tg-surface) 100%);
}
.page-login .content--login {
  flex: none;
  width: 100%;
  max-width: 420px;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Block: login (карточка и форма входа) --- */
.login__card {
  width: 100%;
  background: var(--tg-surface);
  border-radius: 16px;
  padding: 40px 32px;
  border: 1px solid var(--tg-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}
.login__header {
  text-align: center;
  margin-bottom: 28px;
}
.login__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--tg-accent) 0%, var(--tg-surface-hover) 100%);
  color: #fff;
  margin-bottom: 16px;
  box-shadow: 0 4px 16px rgba(82, 136, 193, 0.35);
}
.login__icon .material-symbols-outlined {
  font-size: 28px;
}
.login__title {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--tg-text);
  letter-spacing: -0.02em;
}
.login__subtitle {
  font-size: 0.875rem;
  color: var(--tg-text-secondary);
  margin: 0;
  line-height: 1.4;
}
.login__form {
  margin-top: 0;
}
.login__field {
  margin-bottom: 1.25rem;
}
.login__field:last-of-type {
  margin-bottom: 0;
}
.login__label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--tg-text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.login__input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--tg-border);
  border-radius: 10px;
  background: var(--tg-panel);
  color: var(--tg-text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.login__input:hover {
  border-color: var(--tg-surface-hover);
}
.login__input:focus {
  border-color: var(--tg-accent);
  box-shadow: 0 0 0 3px rgba(82, 136, 193, 0.2);
}
.login__input::placeholder {
  color: var(--tg-text-secondary);
  opacity: 0.8;
}
.login__error {
  color: var(--tg-error);
  font-size: 0.875rem;
  margin: 1rem 0 0;
  padding: 10px 12px;
  background: rgba(236, 57, 66, 0.12);
  border-radius: 8px;
  border: 1px solid rgba(236, 57, 66, 0.25);
}
.login__btn {
  width: 100%;
  margin-top: 1.5rem;
  padding: 12px 20px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 10px;
  transition: background 0.2s ease, transform 0.1s ease;
}
.login__btn:hover {
  background: var(--tg-accent-hover);
  transform: translateY(-1px);
}
.login__btn:active {
  transform: translateY(0);
}
.sidebar__link--logout {
  margin-top: auto;
  color: var(--tg-text-secondary);
}
.sidebar__link--logout:hover {
  background: var(--tg-surface);
  color: var(--tg-error);
}