/* ─── тема ────────────────────────────────────────────────────────────────── */
:root {
  --bg: #ffffff;
  --bg-sub: #f6f8fa;
  --bg-hover: #eef1f4;
  --bg-sel: #ddebff;
  --bg-sel-strong: #cfe2ff;
  --border: #d8dee4;
  --border-soft: #e8ecf0;
  --text: #1f2328;
  --text-dim: #656d76;
  --text-faint: #8c959f;
  --accent: #1f6feb;
  --accent-hover: #1a5fd0;
  --danger: #cf222e;
  --folder: #f0b429;
  --shadow: 0 6px 24px rgba(31, 35, 40, .12);
  --radius: 8px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --bg-sub: #161b22;
    --bg-hover: #21262d;
    --bg-sel: #24406b;
    --bg-sel-strong: #2f5590;
    --border: #30363d;
    --border-soft: #21262d;
    --text: #e6edf3;
    --text-dim: #9198a1;
    --text-faint: #6e7681;
    --accent: #4493f8;
    --accent-hover: #58a6ff;
    --danger: #f85149;
    --folder: #e3b341;
    --shadow: 0 6px 24px rgba(1, 4, 9, .6);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
.hidden { display: none !important; }
button, input { font: inherit; color: inherit; }

/* ─── кнопки ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  padding: 7px 14px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); cursor: pointer; white-space: nowrap;
  transition: background .12s, border-color .12s; text-decoration: none;
}
.btn:hover { background: var(--bg-hover); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 500; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger { color: var(--danger); border-color: var(--border); }
.btn-danger:hover { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-lg { padding: 11px 22px; font-size: 15px; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; padding: 0; border: 0; border-radius: 6px;
  background: transparent; cursor: pointer; color: var(--text-dim);
  transition: background .12s, color .12s; text-decoration: none; flex: none;
}
.icon-btn:hover:not(:disabled) { background: var(--bg-hover); color: var(--text); }
.icon-btn:disabled { opacity: .35; cursor: default; }
.icon-btn.active { background: var(--bg-sel); color: var(--accent); }

/* ─── экран входа ─────────────────────────────────────────────────────────── */
.login { position: fixed; inset: 0; display: grid; place-items: center; background: var(--bg-sub); }
.login-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: 14px;
  padding: 44px 40px; text-align: center; max-width: 380px; box-shadow: var(--shadow);
}
.login-logo { font-size: 52px; line-height: 1; }
.login-card h1 { margin: 12px 0 6px; font-size: 24px; }
.login-card p { margin: 0 0 26px; color: var(--text-dim); }
.login-error {
  margin-top: 18px; padding: 10px 12px; border-radius: 8px;
  background: rgba(207, 34, 46, .1); color: var(--danger); font-size: 13px;
}

/* ─── каркас ──────────────────────────────────────────────────────────────── */
.app { display: flex; height: 100vh; height: 100dvh; }

.sidebar {
  width: 250px; flex: none; display: flex; flex-direction: column;
  background: var(--bg-sub); border-right: 1px solid var(--border); padding: 12px;
  gap: 8px; overflow: hidden;
}
.sidebar-head { display: flex; align-items: center; justify-content: space-between; padding: 2px 4px 8px; }
.brand { font-weight: 600; font-size: 15px; }
.sidebar-close { display: none; }
.btn-upload, .btn-newfolder { width: 100%; }

.places { display: flex; flex-direction: column; gap: 1px; margin-top: 6px; }
.place {
  display: flex; align-items: center; gap: 9px; padding: 7px 10px;
  border: 0; border-radius: 6px; background: transparent; cursor: pointer;
  text-align: left; color: var(--text-dim); font-size: 13.5px;
}
.place:hover { background: var(--bg-hover); color: var(--text); }
.place.active { background: var(--bg-sel); color: var(--accent); font-weight: 500; }

.tree-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: .5px;
  color: var(--text-faint); padding: 12px 10px 4px; font-weight: 600;
}
.tree { flex: 1; overflow-y: auto; overflow-x: hidden; margin: 0 -4px; padding: 0 4px; }
.tnode { user-select: none; }
.trow {
  display: flex; align-items: center; gap: 4px; padding: 5px 6px;
  border-radius: 6px; cursor: pointer; font-size: 13.5px; white-space: nowrap;
}
.trow:hover { background: var(--bg-hover); }
.trow.active { background: var(--bg-sel); color: var(--accent); font-weight: 500; }
.trow.drop-target { background: var(--bg-sel-strong); outline: 2px solid var(--accent); outline-offset: -2px; }
.tcaret {
  width: 16px; height: 16px; flex: none; display: grid; place-items: center;
  color: var(--text-faint); font-size: 9px; transition: transform .15s;
}
.tcaret.open { transform: rotate(90deg); }
.tcaret.leaf { visibility: hidden; }
.ticon { flex: none; color: var(--folder); display: flex; }
.tname { overflow: hidden; text-overflow: ellipsis; }
.tchildren { margin-left: 14px; border-left: 1px solid var(--border-soft); padding-left: 2px; }

.quota { padding: 10px 8px 6px; border-top: 1px solid var(--border-soft); }
.quota-bar { height: 5px; background: var(--bg-hover); border-radius: 3px; overflow: hidden; }
.quota-fill { height: 100%; background: var(--accent); width: 0; transition: width .4s; }
.quota-text { font-size: 11.5px; color: var(--text-faint); margin-top: 6px; }

.user {
  display: flex; align-items: center; gap: 8px; padding: 8px;
  border-top: 1px solid var(--border-soft); font-size: 12.5px; color: var(--text-dim);
}
.user img { width: 26px; height: 26px; border-radius: 50%; flex: none; }
.user-email { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }

/* ─── верхняя панель ──────────────────────────────────────────────────────── */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.toolbar {
  display: flex; align-items: center; gap: 4px; padding: 8px 12px;
  border-bottom: 1px solid var(--border); flex: none;
}
.sidebar-toggle { display: none; }

.crumbs {
  flex: 1; display: flex; align-items: center; gap: 2px; min-width: 0;
  overflow-x: auto; scrollbar-width: none; margin: 0 6px; padding: 2px 0;
}
.crumbs::-webkit-scrollbar { display: none; }
.crumb {
  padding: 4px 8px; border: 0; border-radius: 6px; background: transparent;
  cursor: pointer; white-space: nowrap; color: var(--text-dim); font-size: 13.5px;
}
.crumb:hover { background: var(--bg-hover); color: var(--text); }
.crumb.last { color: var(--text); font-weight: 600; }
.crumb.drop-target { background: var(--bg-sel-strong); }
.crumb-sep { color: var(--text-faint); flex: none; font-size: 12px; }

.search-wrap { position: relative; flex: none; }
.search-icon { position: absolute; left: 9px; top: 50%; transform: translateY(-50%); color: var(--text-faint); pointer-events: none; }
#search {
  width: 210px; padding: 6px 10px 6px 30px; border: 1px solid var(--border);
  border-radius: 20px; background: var(--bg-sub); outline: none;
}
#search:focus { border-color: var(--accent); background: var(--bg); width: 260px; }
#search { transition: width .18s, border-color .12s; }

.view-switch { display: flex; gap: 2px; margin-left: 4px; }

/* ─── список файлов ───────────────────────────────────────────────────────── */
.content { flex: 1; overflow: auto; position: relative; }
.filelist { padding: 6px; min-height: 100%; }

/* режим "список" */
.filelist.list .frow {
  display: grid; grid-template-columns: 34px 1fr 96px 150px; align-items: center;
  gap: 10px; padding: 6px 10px; border-radius: 6px; cursor: default; user-select: none;
}
.filelist.list .fhead {
  display: grid; grid-template-columns: 34px 1fr 96px 150px; gap: 10px;
  padding: 6px 10px; font-size: 12px; color: var(--text-faint); font-weight: 600;
  border-bottom: 1px solid var(--border-soft); position: sticky; top: -6px;
  background: var(--bg); z-index: 2; margin: -6px -6px 4px; padding-left: 16px;
}
.fhead span { cursor: pointer; display: flex; align-items: center; gap: 3px; }
.fhead span:hover { color: var(--text); }
.filelist.list .fthumb { width: 26px; height: 26px; }
.filelist.list .fsize, .filelist.list .fdate { font-size: 12.5px; color: var(--text-dim); white-space: nowrap; }

/* режим "плитка" */
.filelist.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); gap: 6px;
  /* без этого grid растягивает ряды на всю высоту контейнера (min-height:100%) */
  grid-auto-rows: min-content; align-content: start;
}
.filelist.grid .fhead { display: none; }
.filelist.grid .frow {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 14px 8px; border-radius: 8px; cursor: default; user-select: none; text-align: center;
}
.filelist.grid .fthumb { width: 62px; height: 62px; }
.filelist.grid .fname {
  font-size: 12.5px; max-width: 100%; white-space: normal; text-align: center;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; word-break: break-word; line-height: 1.3;
}
.filelist.grid .fsize, .filelist.grid .fdate { display: none; }

.frow:hover { background: var(--bg-hover); }
.frow.selected { background: var(--bg-sel); }
.frow.selected:hover { background: var(--bg-sel-strong); }
.frow.cursor { outline: 2px solid var(--accent); outline-offset: -2px; }
.frow.drop-target { background: var(--bg-sel-strong); outline: 2px dashed var(--accent); outline-offset: -2px; }
.frow.dragging { opacity: .4; }

.fthumb { display: grid; place-items: center; flex: none; overflow: hidden; border-radius: 4px; }
.fthumb img { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; }
.fthumb svg { width: 100%; height: 100%; }
.fname {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  display: flex; align-items: center; gap: 6px; min-width: 0;
}
.fname .star { color: var(--folder); flex: none; }
.fname .shared-mark { flex: none; font-size: 11px; opacity: .75; }
.fname-input {
  width: 100%; padding: 2px 6px; border: 1px solid var(--accent);
  border-radius: 4px; background: var(--bg); outline: none;
}

.empty { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; gap: 6px; pointer-events: none; }
.empty-icon { font-size: 46px; }
.empty-title { font-weight: 600; }
.empty-sub { color: var(--text-dim); font-size: 13px; }

.loader { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(127,127,127,.06); }
.spinner {
  width: 30px; height: 30px; border: 3px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.statusbar {
  flex: none; padding: 5px 14px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-dim); background: var(--bg-sub);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ─── контекстное меню ────────────────────────────────────────────────────── */
.ctxmenu {
  position: fixed; z-index: 200; min-width: 205px; padding: 5px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 10px; box-shadow: var(--shadow);
}
.ctxitem {
  display: flex; align-items: center; gap: 9px; width: 100%; padding: 7px 10px;
  border: 0; border-radius: 6px; background: transparent; cursor: pointer;
  text-align: left; font-size: 13.5px;
}
.ctxitem:hover { background: var(--bg-hover); }
.ctxitem.danger { color: var(--danger); }
.ctxitem.danger:hover { background: var(--danger); color: #fff; }
.ctxsep { height: 1px; background: var(--border-soft); margin: 4px 6px; }
.ctxlabel {
  font-size: 11px; text-transform: uppercase; letter-spacing: .4px;
  color: var(--text-faint); padding: 4px 10px 2px; font-weight: 600;
}
.ctxpalette {
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 5px; padding: 4px 10px 8px;
}
.cdot {
  width: 18px; height: 18px; border-radius: 50%; border: 1px solid rgba(127,127,127,.35);
  cursor: pointer; padding: 0; display: grid; place-items: center; font-size: 10px;
  color: var(--text-dim); background: transparent; transition: transform .1s;
}
.cdot:hover { transform: scale(1.18); }
.cdot.active { box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent); }
.cdot.plain { background: var(--bg-hover); color: var(--text-dim); }
.ctxkey { margin-left: auto; color: var(--text-faint); font-size: 11.5px; }

/* ─── зона перетаскивания ─────────────────────────────────────────────────── */
.dropzone {
  position: fixed; inset: 0; z-index: 150; display: grid; place-items: center;
  background: rgba(31, 111, 235, .1); backdrop-filter: blur(2px);
  /* иначе накладка перехватывает события и папку под курсором не определить */
  pointer-events: none;
}
.dropzone-inner {
  padding: 40px 56px; border: 3px dashed var(--accent); border-radius: 16px;
  background: var(--bg); text-align: center; font-weight: 500; box-shadow: var(--shadow);
}
.dropzone-icon { font-size: 40px; margin-bottom: 8px; }

/* ─── просмотр ────────────────────────────────────────────────────────────── */
.viewer { position: fixed; inset: 0; z-index: 300; background: rgba(0,0,0,.9); display: flex; flex-direction: column; }
.viewer-head {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  color: #fff; background: rgba(0,0,0,.5); flex: none;
}
.viewer-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
.viewer-actions { display: flex; gap: 2px; }
.viewer .icon-btn { color: #ddd; font-size: 20px; }
.viewer .icon-btn:hover { background: rgba(255,255,255,.15); color: #fff; }
.viewer-body { flex: 1; display: grid; place-items: center; overflow: auto; padding: 14px; }
.viewer-body img, .viewer-body video { max-width: 100%; max-height: 100%; object-fit: contain; }
/* родитель — grid с place-items:center, поэтому рамку тянем явно */
.viewer-body iframe {
  width: 100%; height: 100%; border: 0; background: #fff; border-radius: 6px;
  justify-self: stretch; align-self: stretch;
}
.viewer-fallback { color: #fff; text-align: center; display: grid; gap: 14px; place-items: center; }
.viewer-note {
  position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%);
  color: #ddd; font-size: 13px; background: rgba(0,0,0,.7);
  padding: 8px 14px; border-radius: 18px;
}
.viewer-note a { color: #7cb7ff; }
.viewer-body { position: relative; }
.viewer-fallback .big { font-size: 60px; }

/* ─── диалог ──────────────────────────────────────────────────────────────── */
.modal { position: fixed; inset: 0; z-index: 400; display: grid; place-items: center; background: rgba(0,0,0,.45); padding: 16px; }
.modal-card {
  background: var(--bg); border-radius: 12px; padding: 22px; width: min(460px, 100%);
  box-shadow: var(--shadow); max-height: 86vh; display: flex; flex-direction: column;
}
.modal-card h3 { margin: 0 0 14px; font-size: 17px; }
.modal-card input[type=text] {
  width: 100%; padding: 9px 11px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--bg-sub); outline: none;
}
.modal-card input[type=text]:focus { border-color: var(--accent); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.modal-hint { color: var(--text-dim); font-size: 13px; margin-bottom: 10px; }

/* диалог доступа */
.people { border: 1px solid var(--border); border-radius: 8px; max-height: 190px; overflow-y: auto; margin-bottom: 12px; }
.people-empty { padding: 14px; text-align: center; color: var(--text-faint); font-size: 13px; }
.person { display: flex; align-items: center; gap: 8px; padding: 7px 10px; border-bottom: 1px solid var(--border-soft); }
.person:last-child { border-bottom: 0; }
.person-who { flex: 1; min-width: 0; }
.person-name { font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.person-mail { font-size: 11.5px; color: var(--text-faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.person-role {
  padding: 4px 6px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-sub); font-size: 12.5px; flex: none;
}
.share-add { display: flex; gap: 6px; margin-bottom: 8px; }
.share-add input[type=text] { flex: 1; }
.notify { display: flex; align-items: flex-start; gap: 7px; font-size: 12.5px; color: var(--text-dim); margin-bottom: 14px; }
.notify input { margin-top: 2px; flex: none; }
.share-link { border-top: 1px solid var(--border-soft); padding-top: 12px; }
.share-link-title { font-size: 13px; margin-bottom: 8px; }
.share-link-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.owner-mark {
  flex: none; font-size: 11.5px; color: var(--text-faint);
  background: var(--bg-hover); padding: 1px 7px; border-radius: 10px;
  overflow: hidden; text-overflow: ellipsis; max-width: 150px; white-space: nowrap;
}

/* дерево выбора папки в диалоге перемещения */
.picker { flex: 1; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; padding: 6px; max-height: 320px; }
.picker .trow.active { background: var(--bg-sel-strong); }

/* ─── загрузки ────────────────────────────────────────────────────────────── */
.uploads {
  position: fixed; right: 18px; bottom: 18px; z-index: 250; width: 320px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: var(--shadow); overflow: hidden;
}
.uploads-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 12px; background: var(--bg-sub); border-bottom: 1px solid var(--border);
  font-weight: 600; font-size: 13px;
}
#uploadsList { max-height: 230px; overflow-y: auto; padding: 6px; }
.uprow { padding: 6px 8px; font-size: 12.5px; }
.upname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-bottom: 4px; }
.upbar { height: 4px; background: var(--bg-hover); border-radius: 2px; overflow: hidden; }
.upfill { height: 100%; background: var(--accent); width: 0; transition: width .2s; }
.upfill.done { background: #2da44e; }
.upfill.error { background: var(--danger); }

/* ─── всплывашки ──────────────────────────────────────────────────────────── */
.toasts { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: 500; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast {
  padding: 9px 16px; border-radius: 20px; background: var(--text); color: var(--bg);
  font-size: 13px; box-shadow: var(--shadow); animation: rise .2s ease-out;
  display: flex; align-items: center; gap: 10px; max-width: 90vw;
}
.toast.error { background: var(--danger); color: #fff; }
.toast button { background: none; border: 0; color: inherit; font-weight: 600; cursor: pointer; text-decoration: underline; padding: 0; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }

/* ─── телефон ─────────────────────────────────────────────────────────────── */
@media (max-width: 780px) {
  .sidebar {
    position: fixed; inset: 0 auto 0 0; z-index: 100; width: 270px;
    transform: translateX(-100%); transition: transform .22s; box-shadow: var(--shadow);
  }
  .sidebar.open { transform: none; }
  .sidebar-close, .sidebar-toggle { display: inline-flex; }
  #search { width: 120px; }
  #search:focus { width: 160px; }
  .filelist.list .frow, .filelist.list .fhead { grid-template-columns: 34px 1fr 74px; }
  .filelist.list .fdate, .fhead .h-date { display: none; }
  .uploads { right: 10px; left: 10px; width: auto; }
}