:root {
  --ink: #0E0E10;
  --ink-soft: #3F3F46;
  --muted: #8A8A95;
  --paper: #FFFFFF;
  --paper-2: #F5F6F8;
  --paper-3: #EFF1F4;
  --line: #E2E5EB;
  --line-soft: #ECEEF2;
  --accent: #1F3FE5;
  --accent-deep: #1730B8;
  --accent-soft: #EAEEFE;
  --lime: #B8E62E;
  --lime-soft: #F2FBD3;
  --sky: #8FA8F0;
  --danger: #DC2626;
  --danger-soft: #FEE5E5;
  --shadow: 0 1px 2px rgba(14,14,16,.05), 0 8px 24px rgba(14,14,16,.06);
  --radius: 14px;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Hanken Grotesk', system-ui, sans-serif;
}

[data-theme="dark"] {
  --ink: #E8EAF0;
  --ink-soft: #B5BAC4;
  --muted: #7C808B;
  --paper: #16181D;
  --paper-2: #1D2027;
  --paper-3: #262932;
  --line: #2A2E37;
  --line-soft: #232730;
  --accent: #4d6bff;
  --accent-deep: #6F89FF;
  --accent-soft: rgba(31,63,229,.22);
  --lime-soft: rgba(184,230,46,.18);
  --danger: #F87171;
  --danger-soft: rgba(220,38,38,.25);
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 30px rgba(0,0,0,.45);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper-2);
  transition: background .2s, color .2s;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; margin: 0; letter-spacing: -.02em; }
button, input, select { font-family: inherit; font-size: 1rem; color: inherit; }
.muted { color: var(--muted); }
.small { font-size: .82rem; }
em.muted-em { color: var(--muted); font-style: normal; font-weight: 500; }

/* ---------- Botones ---------- */
.btn-primary {
  background: var(--ink); color: var(--paper); border: none;
  padding: .65rem 1.2rem; border-radius: 10px; cursor: pointer; font-weight: 600;
  transition: background .15s, transform .05s;
}
[data-theme="dark"] .btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-deep); color: #fff; }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { background: var(--line); color: var(--muted); cursor: not-allowed; }
.btn-primary.block { width: 100%; }
.btn-ghost {
  background: transparent; border: 1px solid var(--line); color: var(--ink-soft);
  padding: .5rem .85rem; border-radius: 10px; cursor: pointer; font-weight: 500;
  text-decoration: none; transition: border-color .15s, color .15s, background .15s;
}
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); background: var(--paper); }
.btn-mini {
  width: 30px; height: 30px; border-radius: 9px; border: 1px solid var(--line);
  background: var(--paper); cursor: pointer; font-size: 1.2rem; line-height: 1; color: var(--accent);
}
.btn-mini:hover { border-color: var(--accent); }

/* ---------- Login ---------- */
.login-screen {
  min-height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 1.2rem; padding: 2rem;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(31,63,229,.10), transparent 60%),
    radial-gradient(700px 400px at 0% 100%, rgba(184,230,46,.14), transparent 60%),
    var(--paper-2);
}
[data-theme="dark"] .login-screen {
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(77,107,255,.14), transparent 60%),
    radial-gradient(700px 400px at 0% 100%, rgba(184,230,46,.08), transparent 60%),
    var(--paper-2);
}
.login-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 2.4rem 2rem; width: 100%; max-width: 400px;
}
.login-logo { display: block; width: 170px; height: auto; margin: 0 auto 1.4rem; }
.login-title { font-size: 1.35rem; margin-bottom: .35rem; text-align: center; }
.login-sub { color: var(--muted); font-size: .9rem; text-align: center; margin: 0 0 1.5rem; }
#login-form { display: flex; flex-direction: column; gap: 1rem; }
#login-form label { display: flex; flex-direction: column; gap: .35rem; font-size: .82rem; color: var(--ink-soft); font-weight: 600; }
#login-form input {
  border: 1px solid var(--line); border-radius: 10px; padding: .75rem .9rem; background: var(--paper-2);
  transition: border-color .15s, background .15s;
}
#login-form input:focus { outline: none; border-color: var(--accent); background: var(--paper); }
.login-foot {
  display: flex; flex-direction: column; align-items: center; gap: .8rem;
  color: var(--muted); font-size: .8rem; letter-spacing: .02em;
}
.login-prefs { display: flex; gap: .35rem; }
.error { color: var(--danger); font-size: .85rem; margin: 0; }

/* ---------- Toggles tema/idioma ---------- */
.prefs, .login-prefs { display: flex; gap: .25rem; align-items: center; }
.lang-btn, .theme-btn {
  background: transparent; border: 1px solid var(--line); color: var(--ink-soft);
  padding: .35rem .55rem; border-radius: 8px; cursor: pointer; font-size: .8rem; font-weight: 600;
  transition: all .15s;
}
.lang-btn:hover, .theme-btn:hover { border-color: var(--ink); color: var(--ink); }
.lang-btn.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
[data-theme="dark"] .lang-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.theme-btn { font-size: 1rem; padding: .25rem .5rem; }

/* ---------- Topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: .7rem 1.4rem; background: var(--paper); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.topbar-brand { display: flex; align-items: center; gap: .7rem; min-width: 0; }
.brand-frame {
  display: inline-flex; align-items: center; padding: 4px 8px; border-radius: 8px;
  background: transparent; transition: background .15s;
}
[data-theme="dark"] .brand-frame { background: transparent; }
.topbar-logo { height: 24px; width: auto; display: block; }
.topbar-sep { color: var(--line); font-weight: 400; }
.topbar-section { font-family: var(--font-display); font-weight: 500; color: var(--ink-soft); font-size: .95rem; }
.topbar-user { display: flex; align-items: center; gap: .65rem; font-size: .88rem; flex-wrap: wrap; }
.role-pill {
  background: var(--accent-soft); color: var(--accent-deep); padding: .2rem .65rem;
  border-radius: 100px; font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
}
.role-pill.mini { font-size: .6rem; padding: .12rem .45rem; vertical-align: middle; }
[data-theme="dark"] .role-pill { color: #B5C5FF; }

/* ---------- Layout ---------- */
.layout { display: flex; min-height: calc(100vh - 57px); }
.sidebar {
  width: 260px; flex-shrink: 0; border-right: 1px solid var(--line);
  padding: 1.2rem 1rem; background: var(--paper);
}
.sidebar-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: .9rem; }
.sidebar-head h2 { font-size: 1.05rem; }
.client-filter {
  width: 100%; border: 1px solid var(--line); border-radius: 9px; padding: .5rem .7rem;
  background: var(--paper-2); margin-bottom: .8rem;
}
.client-filter:focus { outline: none; border-color: var(--accent); }
.client-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.client-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: .55rem .7rem; border-radius: 9px; cursor: pointer; color: var(--ink-soft);
  font-weight: 500; font-size: .92rem; transition: background .12s, color .12s;
}
.client-list li .client-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.client-list li:hover { background: var(--paper-2); }
.client-list li.active { background: var(--ink); color: var(--paper); }
[data-theme="dark"] .client-list li.active { background: var(--accent); color: #fff; }
.client-list li.active .icon-btn { color: rgba(255,255,255,.85); }
.client-list li.active .icon-btn:hover { color: #fff; background: rgba(255,255,255,.12); }
.client-list .icon-btn { opacity: 0; transition: opacity .15s; padding: .2rem .4rem; }
.client-list li:hover .icon-btn, .client-list li.active .icon-btn { opacity: 1; }

.content { flex: 1; padding: 1.8rem 2rem; min-width: 0; }
.content-head {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem;
  flex-wrap: wrap; margin-bottom: 1.4rem;
}
.content-head h2 { font-size: 1.65rem; }
.content-actions { display: flex; gap: .55rem; align-items: center; flex-wrap: wrap; }
.doc-search {
  border: 1px solid var(--line); border-radius: 10px; padding: .55rem .85rem;
  background: var(--paper); width: 220px;
}
.doc-search:focus { outline: none; border-color: var(--accent); }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { display: flex; align-items: center; gap: .35rem; flex-wrap: wrap; margin-top: .4rem; font-size: .88rem; }
.breadcrumbs a { color: var(--accent); text-decoration: none; cursor: pointer; font-weight: 500; }
.breadcrumbs a:hover { text-decoration: underline; }
.breadcrumbs .sep { color: var(--muted); }
.breadcrumbs .current { color: var(--ink); font-weight: 600; }

/* ---------- Drop overlay (Finder-style) ---------- */
.drop-overlay {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(31, 63, 229, .08); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  pointer-events: none; /* allow drop events to propagate */
}
.drop-overlay-inner {
  text-align: center; padding: 3rem 4rem;
  border: 3px dashed var(--accent); border-radius: 24px;
  background: var(--paper); box-shadow: 0 20px 60px rgba(0,0,0,.12);
  animation: dropPulse 1.6s ease-in-out infinite;
}
@keyframes dropPulse {
  0%, 100% { transform: scale(1); border-color: var(--accent); }
  50% { transform: scale(1.02); border-color: var(--lime); }
}
.drop-icon { color: var(--accent); margin-bottom: .8rem; }
.drop-text { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; color: var(--ink); margin: 0; }
.drop-sub { font-size: .85rem; color: var(--muted); margin: .4rem 0 0; }
[data-theme="dark"] .drop-overlay { background: rgba(31, 63, 229, .15); }
[data-theme="dark"] .drop-overlay-inner { background: var(--paper-2); }

/* ---------- Tabla ---------- */
.table-wrap { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.doc-table { width: 100%; border-collapse: collapse; }
.doc-table th {
  text-align: left; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em;
  color: var(--muted); font-weight: 700; padding: .85rem 1.1rem; border-bottom: 1px solid var(--line); background: var(--paper-2);
}
.doc-table td { padding: .75rem 1.1rem; border-bottom: 1px solid var(--line-soft); font-size: .92rem; vertical-align: middle; }
.doc-table tr:last-child td { border-bottom: none; }
.doc-table tbody tr:hover { background: var(--paper-2); }
.doc-name { display: flex; align-items: center; gap: .65rem; font-weight: 500; }
.doc-name.folder { cursor: pointer; color: var(--ink); }
.doc-name.folder:hover .label { color: var(--accent); }
.doc-icon {
  width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center;
  font-size: .68rem; font-weight: 700; flex-shrink: 0;
  background: var(--accent-soft); color: var(--accent-deep);
}
.doc-icon.folder { background: var(--lime-soft); color: #5a720f; }
.doc-icon.folder svg { display: block; }
.doc-icon svg { display: block; }
[data-theme="dark"] .doc-icon.folder { color: var(--lime); }
.row-actions { display: flex; gap: .35rem; justify-content: flex-end; }
.icon-btn {
  border: none; background: transparent; cursor: pointer; color: var(--ink-soft);
  padding: .35rem .6rem; border-radius: 8px; font-size: .82rem; font-weight: 600;
  transition: background .12s, color .12s;
}
.icon-btn:hover { background: var(--accent-soft); color: var(--accent-deep); }
.icon-btn.danger:hover { background: var(--danger-soft); color: var(--danger); }

.empty {
  text-align: center; color: var(--muted); padding: 3rem 1rem;
  border: 1px dashed var(--line); border-radius: var(--radius); background: var(--paper);
}

.upload-progress { margin-top: 1rem; color: var(--accent-deep); font-size: .9rem; }

/* ---------- Modales ---------- */
.modal {
  position: fixed; inset: 0; background: rgba(14,14,16,.55); backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center; padding: 1.5rem; z-index: 50;
}
.modal-box {
  background: var(--paper); border-radius: var(--radius); box-shadow: var(--shadow);
  width: 100%; max-width: 920px; max-height: 90vh; display: flex; flex-direction: column; overflow: hidden;
  border: 1px solid var(--line);
}
.modal-box.small { max-width: 440px; }
.modal-head {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .9rem 1.2rem; border-bottom: 1px solid var(--line); font-weight: 600;
}
.modal-head > div { display: flex; gap: .5rem; }
.modal-body { overflow: auto; background: var(--paper-2); }
.modal-body.pad { padding: 1.3rem; background: var(--paper); }
.modal-body iframe, .modal-body img { display: block; width: 100%; border: none; }
.modal-body iframe { height: 78vh; }
.modal-body img { max-height: 80vh; object-fit: contain; margin: 0 auto; }
.modal-body pre { margin: 0; padding: 1.3rem; white-space: pre-wrap; font-size: .85rem; background: var(--paper); color: var(--ink); }
.modal-body label { display: flex; flex-direction: column; gap: .35rem; font-size: .82rem; color: var(--ink-soft); font-weight: 600; margin-bottom: .8rem; }
.modal-body input, .modal-body select {
  border: 1px solid var(--line); border-radius: 10px; padding: .65rem .85rem; background: var(--paper-2);
}
.modal-body input:focus, .modal-body select:focus { outline: none; border-color: var(--accent); background: var(--paper); }
.modal-foot { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1.2rem; }

/* ---------- Listas (accesos / admins) ---------- */
.form-section { font-family: var(--font-display); font-size: 1rem; font-weight: 600; margin: 1.4rem 0 .6rem; }
.access-list { list-style: none; margin: 0 0 .4rem; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.access-list .empty-row { color: var(--muted); font-size: .88rem; padding: .6rem 0; }
.access-list li.row {
  display: flex; align-items: center; justify-content: space-between; gap: .5rem;
  padding: .55rem .7rem; border: 1px solid var(--line); border-radius: 9px;
  background: var(--paper-2); font-size: .9rem;
}
.access-list .uname { font-weight: 600; color: var(--ink); }
.access-list .uname small { color: var(--muted); font-weight: 400; margin-left: .4rem; }
.access-list .actions { display: flex; gap: .3rem; }

/* ---------- Actividad ---------- */
.activity-filters { display: flex; gap: .55rem; flex-wrap: wrap; align-items: center; }
.activity-filters input, .activity-filters select {
  border: 1px solid var(--line); border-radius: 9px; padding: .5rem .7rem; background: var(--paper); flex: 1; min-width: 120px;
}
.activity-filters input:focus, .activity-filters select:focus { outline: none; border-color: var(--accent); }
.activity-cell { font-size: .85rem; }
.activity-cell .target { color: var(--muted); font-size: .78rem; word-break: break-all; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 1.4rem; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: var(--paper); padding: .8rem 1.3rem; border-radius: 10px;
  font-size: .9rem; box-shadow: var(--shadow); z-index: 80;
}
[data-theme="dark"] .toast { background: var(--paper-3); color: var(--ink); border: 1px solid var(--line); }
.toast.err { background: var(--danger); color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .sidebar {
    position: fixed; inset: 0 auto 0 0; top: 57px; width: 82%; max-width: 320px;
    max-height: calc(100vh - 57px); z-index: 30; overflow: auto;
    border-right: 1px solid var(--line); border-bottom: none;
    transform: translateX(-100%); transition: transform .25s ease;
    box-shadow: 8px 0 30px rgba(0,0,0,.25);
  }
  .sidebar.open { transform: translateX(0); }
  /* Backdrop al abrir el sidebar */
  .sidebar-backdrop {
    position: fixed; inset: 57px 0 0 0; background: rgba(0,0,0,.4); z-index: 29;
  }
  /* Selector de cliente en móvil (oculto si tiene atributo hidden) */
  .client-picker-btn:not([hidden]) { display: flex !important; }
  .content { padding: 1rem; }
  .content-head { gap: .6rem; margin-bottom: .8rem; }
  .content-head h2 { font-size: 1.2rem; }
  .content-actions { gap: .4rem; width: 100%; flex-wrap: nowrap; align-items: center; }
  /* En móvil: ocultar búsqueda inline y los botones sueltos; usar menú ⋯ + búsqueda en fila propia */
  .content-actions .doc-search { display: none; }
  .action-group { display: none; }
  .overflow-menu { display: block; margin-left: auto; }
  .doc-search-mobile { display: block; }
  /* Ocultar Tamaño y Modificado. Con checkbox (writer) las columnas son:
     1=check 2=nombre 3=tamaño 4=fecha 5=acciones.
     Sin checkbox (cliente): 1=nombre 2=tamaño 3=fecha 4=acciones. */
  .doc-table th:nth-child(3), .doc-table td:nth-child(3),
  .doc-table th:nth-child(4), .doc-table td:nth-child(4) { display: none; }
  /* Para cliente (sin columna checkbox) reactivar acciones en col 4 y ocultar 2/3 */
  .doc-table.no-check th:nth-child(4), .doc-table.no-check td:nth-child(4) { display: table-cell; }
  .doc-table.no-check th:nth-child(2), .doc-table.no-check td:nth-child(2),
  .doc-table.no-check th:nth-child(3), .doc-table.no-check td:nth-child(3) { display: none; }
  .doc-table th { padding: .6rem .7rem; }
  .doc-table td { padding: .55rem .5rem; font-size: .85rem; }
  /* La columna del nombre toma el ancho disponible */
  .doc-table td:nth-child(2) { width: 100%; }
  .doc-table.no-check td:first-child { width: 100%; }
  .doc-name { gap: .5rem; min-width: 0; }
  .doc-name > span:not(.doc-icon):not(.doc-thumb) { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
  .doc-name .label { white-space: normal; word-break: break-word; }
  .doc-icon { width: 30px; height: 30px; font-size: .58rem; flex-shrink: 0; }
  .doc-thumb { width: 34px; height: 34px; flex-shrink: 0; }
  .fav-btn { flex-shrink: 0; }
  /* Acciones: envueltas y compactas para que no empujen el nombre */
  .row-actions { gap: .15rem; flex-wrap: wrap; justify-content: flex-end; }
  .icon-btn { font-size: .7rem; padding: .25rem .4rem; }
  /* quota a todo el ancho */
  .quota-indicator { max-width: 100%; }
  /* Botones de acción como pills compactas */
  .btn-ghost, .btn-primary { font-size: .72rem; padding: .4rem .6rem; }
  /* Topbar: ocultar botones de texto largos; van al menú overflow */
  .hide-mobile-text { display: none !important; }
  .topbar { padding: .5rem .7rem; gap: .35rem; flex-wrap: nowrap; }
  .topbar-user { gap: .3rem; flex-wrap: nowrap; }
  .hide-mobile { display: none !important; }
  .role-pill { display: none; }
  .prefs { gap: .15rem; }
  .lang-btn { font-size: .65rem; padding: .2rem .35rem; }
  .theme-btn { font-size: .85rem; padding: .15rem .35rem; }
  /* Breadcrumbs */
  .breadcrumbs { font-size: .78rem; }
  /* Modales */
  .modal { padding: .6rem; }
  .modal-box { max-height: 95vh; border-radius: 14px; }
  .modal-head { padding: .7rem .9rem; font-size: .9rem; }
  .modal-body.pad { padding: .9rem; }
  .modal-body iframe { height: 70vh; }
  /* Drop overlay */
  .drop-overlay-inner { padding: 2rem 2.5rem; }
  .drop-text { font-size: 1.05rem; }
  /* Office preview */
  .office-docx { padding: 1rem 1.2rem; font-size: .85rem; }
  .sheet-tab { font-size: .7rem; padding: .4rem .7rem; }
}

@media (max-width: 440px) {
  .topbar-logo { height: 18px; }
  .login-card { padding: 1.6rem 1.2rem; }
  .login-title { font-size: 1.15rem; }
  .empty { padding: 2rem .8rem; font-size: .85rem; }
}

/* ---------- Office Preview ---------- */
.office-loader {
  display: flex; align-items: center; justify-content: center;
  min-height: 200px; color: var(--muted); font-size: .95rem;
}
.office-loader::before {
  content: ''; width: 20px; height: 20px; border: 2px solid var(--line);
  border-top-color: var(--accent); border-radius: 50%; margin-right: .7rem;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.office-error, .office-info {
  padding: 2rem; text-align: center; color: var(--muted); line-height: 1.6;
}
.office-error { color: var(--danger); }

/* Word (DOCX) */
.office-docx {
  padding: 2rem 2.5rem; max-width: 800px; margin: 0 auto;
  font-family: var(--body); font-size: .92rem; line-height: 1.7;
  color: var(--ink); overflow-x: auto;
}
.office-docx h1 { font-size: 1.5rem; margin: 1.2em 0 .5em; font-weight: 700; }
.office-docx h2 { font-size: 1.25rem; margin: 1em 0 .4em; font-weight: 600; }
.office-docx h3 { font-size: 1.1rem; margin: .8em 0 .3em; font-weight: 600; }
.office-docx p { margin: .4em 0; }
.office-docx table {
  border-collapse: collapse; width: 100%; margin: .8em 0;
}
.office-docx table td, .office-docx table th {
  border: 1px solid var(--line); padding: .35rem .6rem; text-align: left;
}
.office-docx img { max-width: 100%; height: auto; margin: .6em 0; }
.office-docx ul, .office-docx ol { margin: .5em 0; padding-left: 1.5em; }

/* Excel / CSV */
.office-xlsx { overflow: auto; }
.sheet-tabs {
  display: flex; gap: 0; border-bottom: 2px solid var(--line);
  padding: 0 .5rem; background: var(--paper-2);
}
.sheet-tab {
  background: none; border: none; padding: .55rem 1rem;
  font-size: .8rem; font-weight: 500; cursor: pointer;
  color: var(--muted); border-bottom: 2px solid transparent;
  margin-bottom: -2px; transition: all .15s;
}
.sheet-tab:hover { color: var(--ink); }
.sheet-tab.active {
  color: var(--accent); border-bottom-color: var(--accent); font-weight: 700;
}
.sheet-content { overflow: auto; max-height: 65vh; }
.sheet-table, .office-xlsx table {
  border-collapse: collapse; font-size: .82rem; white-space: nowrap;
}
.sheet-table td, .sheet-table th,
.office-xlsx table td, .office-xlsx table th {
  border: 1px solid var(--line); padding: .3rem .55rem; text-align: left;
}
.sheet-table tr:first-child td, .sheet-table thead th,
.office-xlsx table tr:first-child td {
  background: var(--paper-2); font-weight: 600; position: sticky; top: 0;
}
[data-theme="dark"] .sheet-table tr:first-child td,
[data-theme="dark"] .sheet-table thead th { background: var(--paper-3); }

/* PowerPoint */
.office-pptx { padding: 1rem 1.5rem; }
.pptx-slide {
  border: 1px solid var(--line); border-radius: 8px; margin-bottom: 1rem;
  overflow: hidden;
}
.pptx-slide-num {
  background: var(--paper-2); padding: .45rem .8rem; font-size: .75rem;
  font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  color: var(--muted); border-bottom: 1px solid var(--line);
}
.pptx-slide-text { padding: .8rem 1rem; font-size: .88rem; line-height: 1.6; }
.pptx-slide-text p { margin: .2em 0; }
[data-theme="dark"] .pptx-slide-num { background: var(--paper-3); }

/* ---------- Bulk action bar ---------- */
.bulk-bar {
  display: flex; align-items: center; gap: .7rem; padding: .6rem 1rem;
  background: var(--accent-soft); border-radius: var(--radius); margin-bottom: .8rem;
  font-size: .85rem; font-weight: 500; color: var(--accent-deep);
}
[data-theme="dark"] .bulk-bar { background: rgba(31,63,229,.2); }
.bulk-bar .btn-ghost.danger { color: var(--danger); }

/* ---------- Checkbox column ---------- */
.col-check { width: 36px; text-align: center; }
.col-check input { cursor: pointer; }
.row-check { width: 36px; text-align: center; vertical-align: middle; }
.row-check input { cursor: pointer; }

/* ---------- Favorites star ---------- */
.fav-btn { background: none; border: none; cursor: pointer; font-size: 1rem; padding: 2px; opacity: .4; transition: opacity .15s; }
.fav-btn:hover, .fav-btn.active { opacity: 1; }
.fav-btn.active { color: #f5a623; }

/* ---------- Tags ---------- */
.tag-chips { display: flex; gap: .25rem; flex-wrap: wrap; margin-top: .2rem; }
.tag-chip {
  display: inline-flex; align-items: center; gap: .2rem;
  background: var(--accent-soft); color: var(--accent-deep); border-radius: 100px;
  padding: .1rem .5rem; font-size: .65rem; font-weight: 600;
}
.tag-chip .tag-rm { cursor: pointer; font-size: .75rem; margin-left: .15rem; opacity: .6; }
.tag-chip .tag-rm:hover { opacity: 1; }
.tag-add { border: 1px dashed var(--line); border-radius: 100px; padding: .1rem .45rem; font-size: .65rem;
  cursor: pointer; color: var(--muted); background: none; }
.tag-add:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Share modal ---------- */
.share-filename { font-weight: 600; margin-bottom: .7rem; color: var(--ink); }
.share-url-input { width: 100%; font-size: .78rem; margin: .5rem 0; }
.share-meta { font-size: .72rem; color: var(--muted); }

/* ---------- Dashboard ---------- */
.dash-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .8rem; margin-bottom: 1.2rem; }
.dash-card {
  background: var(--paper-2); border-radius: var(--radius); padding: 1rem; text-align: center;
  border: 1px solid var(--line);
}
.dash-card .val { font-size: 1.6rem; font-weight: 700; color: var(--accent); }
.dash-card .lbl { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-top: .2rem; }
.storage-bar { margin-bottom: .5rem; }
.storage-label { display: flex; justify-content: space-between; font-size: .78rem; margin-bottom: .2rem; }
.storage-track { height: 8px; background: var(--paper-3); border-radius: 4px; overflow: hidden; }
.storage-fill { height: 100%; background: var(--accent); border-radius: 4px; transition: width .3s; }

/* ---------- Comments ---------- */
.comment-section { border-top: 1px solid var(--line); padding: .8rem 1rem; max-height: 200px; overflow-y: auto; }
.comment-item { margin-bottom: .5rem; font-size: .82rem; }
.comment-user { font-weight: 600; color: var(--accent); }
.comment-time { font-size: .68rem; color: var(--muted); margin-left: .4rem; }
.comment-text { margin-top: .15rem; }
.comment-form { display: flex; gap: .4rem; padding: .5rem 1rem; border-top: 1px solid var(--line); }
.comment-form input { flex: 1; border: 1px solid var(--line); border-radius: 8px; padding: .4rem .6rem; font-size: .82rem; }

/* ---------- Filter bar ---------- */
.filter-bar {
  display: flex; align-items: center; gap: .4rem; flex-wrap: wrap;
  margin-bottom: .8rem;
}
.filter-chip {
  display: inline-flex; align-items: center; gap: .3rem;
  border: 1px solid var(--line); border-radius: 100px; background: var(--paper);
  padding: .3rem .8rem; font-size: .76rem; font-weight: 600; cursor: pointer;
  color: var(--muted); transition: all .15s;
}
.filter-chip:hover { border-color: var(--accent); color: var(--accent); }
.filter-chip.active {
  background: var(--accent); border-color: var(--accent); color: #fff;
}
.filter-chip.tag-filter.active { background: var(--accent-deep); border-color: var(--accent-deep); }
.filter-chip.clear { border-style: dashed; }
[data-theme="dark"] .filter-chip { background: var(--paper-2); }
[data-theme="dark"] .filter-chip.active { background: var(--accent); color: #fff; }

/* ---------- Sortable headers ---------- */
th.sortable { cursor: pointer; user-select: none; white-space: nowrap; }
th.sortable:hover { color: var(--accent); }
.sort-arrow { font-size: .65rem; opacity: .8; }

/* ---------- Iconos por tipo de archivo ---------- */
.doc-icon { transition: transform .12s; }
tr:hover .doc-icon { transform: scale(1.06); }
.doc-icon.t-pdf  { background: #FDE8E8; color: #C81E1E; }
.doc-icon.t-img  { background: #E8F5FD; color: #0E7490; }
.doc-icon.t-doc  { background: #E8EEFD; color: #1D4ED8; }
.doc-icon.t-xls  { background: #E8FDF0; color: #15803D; }
.doc-icon.t-ppt  { background: #FDF1E8; color: #C2580C; }
.doc-icon.t-zip  { background: #F3E8FD; color: #7E22CE; }
.doc-icon.t-txt  { background: #F1F5F9; color: #475569; }
[data-theme="dark"] .doc-icon.t-pdf  { background: rgba(200,30,30,.18); color: #F87171; }
[data-theme="dark"] .doc-icon.t-img  { background: rgba(14,116,144,.2); color: #67E8F9; }
[data-theme="dark"] .doc-icon.t-doc  { background: rgba(29,78,216,.22); color: #93B4FD; }
[data-theme="dark"] .doc-icon.t-xls  { background: rgba(21,128,61,.2); color: #6EE7A0; }
[data-theme="dark"] .doc-icon.t-ppt  { background: rgba(194,88,12,.2); color: #FDA868; }
[data-theme="dark"] .doc-icon.t-zip  { background: rgba(126,34,206,.22); color: #D8B4FE; }
[data-theme="dark"] .doc-icon.t-txt  { background: rgba(71,85,105,.3); color: #B6C2D2; }

/* ---------- Row hover mejorado ---------- */
.doc-table tbody tr { transition: background .12s; }
.doc-table tbody tr:hover { background: var(--paper-2); }
[data-theme="dark"] .doc-table tbody tr:hover { background: var(--paper-3); }
.doc-table tbody tr .row-actions { opacity: 0; transition: opacity .15s; }
.doc-table tbody tr:hover .row-actions,
.doc-table tbody tr:focus-within .row-actions { opacity: 1; }
@media (hover: none) { .doc-table tbody tr .row-actions { opacity: 1; } }

/* ---------- Sticky header de tabla ---------- */
.table-wrap { max-height: calc(100vh - 230px); overflow: auto; }
.doc-table thead th { position: sticky; top: 0; background: var(--paper); z-index: 2; }
[data-theme="dark"] .doc-table thead th { background: var(--paper-2); }

/* ---------- App version ---------- */
.app-version { opacity: .55; font-size: .72rem; margin-left: .4rem; }

/* ---------- Content split: ventana unificada (árbol + tabla) ---------- */
.content-split {
  display: flex; gap: 0; align-items: stretch;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
[data-theme="dark"] .content-split { background: var(--paper-2); }
.content-split .table-wrap {
  flex: 1; min-width: 0;
  background: transparent; border: none; border-radius: 0; box-shadow: none;
}
/* sin paneles visibles → sin marco */
.content-split:has(> #tree-panel[hidden]):has(> #doc-table-wrap[hidden]) {
  border: none; box-shadow: none; background: transparent;
}

/* ---------- Tree panel (Finder-style, sidebar izquierdo) ---------- */
.tree-panel {
  width: 210px; flex-shrink: 0; border-right: 1px solid var(--line);
  background: var(--paper-2); overflow: hidden;
  display: flex; flex-direction: column;
  padding: .6rem .5rem .6rem .6rem;
}
[data-theme="dark"] .tree-panel { background: var(--paper-3); }
.tree-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: .3rem .5rem .5rem;
  font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: var(--muted);
}
.tree-root { overflow: auto; padding: 0 .2rem .4rem 0; flex: 1; }
.tree-node { user-select: none; }
.tree-row {
  display: flex; align-items: center; gap: .35rem; padding: .3rem .5rem;
  border-radius: 7px; cursor: pointer; font-size: .82rem; color: var(--ink);
  border: 1.5px solid transparent; transition: all .12s;
}
.tree-row:hover { background: var(--paper-2); }
[data-theme="dark"] .tree-row:hover { background: var(--paper-3); }
.tree-row.drop-target {
  background: var(--accent-soft); border-color: var(--accent);
  color: var(--accent-deep); font-weight: 600;
}
[data-theme="dark"] .tree-row.drop-target { background: rgba(31,63,229,.25); color: #B5C5FF; }
.tree-row .tw { width: 14px; text-align: center; font-size: .6rem; color: var(--muted); flex-shrink: 0; }
.tree-row .ticon { font-size: .85rem; }
.tree-children { margin-left: 1rem; }
.tree-row.active { background: var(--accent-soft); font-weight: 600; }

/* fila siendo arrastrada */
.doc-table tbody tr.dragging { opacity: .45; }
.doc-table tbody tr[draggable="true"] { cursor: grab; }

@media (max-width: 900px) {
  /* En móvil el árbol pasa ARRIBA como barra horizontal scrolleable */
  .content-split { flex-direction: column; }
  .tree-panel {
    width: 100%; border-right: none; border-bottom: 1px solid var(--line);
    padding: .5rem .6rem; max-height: none;
  }
  .tree-head { padding: 0 0 .4rem; }
  /* El árbol se aplana en una fila horizontal con scroll */
  .tree-root {
    display: flex; flex-direction: row; gap: .3rem; overflow-x: auto; overflow-y: hidden;
    padding: 0 0 .2rem; -webkit-overflow-scrolling: touch;
  }
  .tree-node { flex-shrink: 0; }
  /* Aplanar la jerarquía visual: cada carpeta es una pastilla */
  .tree-children { margin-left: 0; display: flex; flex-direction: row; gap: .3rem; }
  .tree-row {
    white-space: nowrap; background: var(--paper); border: 1px solid var(--line);
    padding: .35rem .65rem; border-radius: 100px;
  }
  .tree-row .tw { display: none; } /* sin flechas de expandir en móvil */
  [data-theme="dark"] .tree-row { background: var(--paper-2); }
}


/* ---------- Toggle sidebar árbol ---------- */
.tree-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .4rem .5rem; color: var(--muted); border-radius: 8px;
}
.tree-toggle:hover { color: var(--accent); }
.tree-toggle.on { color: var(--accent); background: var(--accent-soft); }
[data-theme="dark"] .tree-toggle.on { background: rgba(31,63,229,.25); }

/* ---------- Iconos SVG flat del árbol ---------- */
.tree-row .ticon { display: inline-flex; align-items: center; color: var(--muted); flex-shrink: 0; }
.tree-row.active .ticon, .tree-row.drop-target .ticon { color: var(--accent); }
.tree-row .ticon svg { display: block; }

/* ---------- Drag ghost (icono flotante) ---------- */
.drag-ghost {
  position: fixed; top: -200px; left: -200px; z-index: -1;
  display: flex; align-items: center; gap: .4rem; padding: .35rem .6rem;
  background: var(--paper); border: 1px solid var(--accent); border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,.18); font-size: .78rem; font-weight: 600;
  pointer-events: none;
}
.drag-ghost .badge {
  background: var(--accent); color: #fff; border-radius: 100px;
  font-size: .62rem; padding: .05rem .4rem; font-weight: 700;
}


/* ---------- Indicador de cuota ---------- */
.quota-indicator { display: flex; align-items: center; gap: .5rem; margin-top: .35rem; max-width: 320px; }
.quota-track { flex: 1; height: 5px; background: var(--paper-3); border-radius: 3px; overflow: hidden; }
.quota-fill { height: 100%; background: var(--accent); border-radius: 3px; transition: width .3s; }
.quota-fill.warn { background: #E8A23D; }
.quota-fill.full { background: var(--danger); }
.quota-label { font-size: .7rem; color: var(--muted); white-space: nowrap; }
.quota-edit-btn { margin-left: .4rem; }


/* ---------- Filas de carpeta (clickeable + drop) ---------- */
.folder-row { cursor: pointer; }
.folder-row .label { font-weight: 600; }
.folder-row.drop-target-row { background: var(--accent-soft) !important; }
.folder-row.drop-target-row .doc-icon.folder { color: var(--accent); }
[data-theme="dark"] .folder-row.drop-target-row { background: rgba(31,63,229,.22) !important; }

/* ---------- Móvil: filas táctiles ---------- */
@media (max-width: 720px) {
  .doc-table td { padding: .7rem; }
  .doc-name { gap: .6rem; }
  .doc-icon { width: 32px; height: 32px; }
  /* área táctil cómoda para abrir carpetas */
  .folder-row td:first-child, .folder-row .doc-name { min-height: 44px; }
  /* En móvil, las acciones de carpeta siempre visibles y compactas */
  .folder-row .row-actions { opacity: 1; }
  /* botones de acción más grandes para el dedo */
  .icon-btn { min-height: 34px; display: inline-flex; align-items: center; }
}


/* ---------- Modal opciones de imagen ---------- */
.checkbox-row { display: flex; flex-direction: row; align-items: center; gap: .5rem; font-size: .85rem; cursor: pointer; }
.checkbox-row input { width: auto; }
#imgopt-quality { width: 100%; accent-color: var(--accent); }
.modal-foot { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1rem; }

/* ---------- Miniaturas de imagen ---------- */
.doc-thumb {
  width: 40px; height: 40px; border-radius: 8px; overflow: hidden; flex-shrink: 0;
  background: var(--paper-2); border: 1px solid var(--line);
  display: inline-flex; align-items: center; justify-content: center;
}
.doc-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
tr:hover .doc-thumb { border-color: var(--accent); }

/* ---------- Badge de versiones ---------- */
.ver-badge {
  background: var(--paper-3); color: var(--muted); border: 1px solid var(--line);
  border-radius: 100px; font-size: .62rem; font-weight: 700; padding: .1rem .45rem;
  margin-left: .4rem; cursor: pointer; transition: all .12s;
}
.ver-badge:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 2FA ---------- */
.twofa-qr {
  display: block; margin: .8rem auto; width: 180px; height: 180px;
  border: 1px solid var(--line); border-radius: 12px; padding: .4rem; background: #fff;
}

/* ---------- Modo buzón ---------- */
.mailbox-view { text-align: center; padding: 2.5rem 1rem; }
.mailbox-icon { color: var(--accent); margin-bottom: .8rem; }
.mailbox-title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; margin: 0 0 .3rem; color: var(--ink); }
.mailbox-view .btn-primary { margin-top: 1.2rem; }


/* ---------- Action group + overflow menu ---------- */
.action-group { display: flex; gap: .55rem; align-items: center; flex-wrap: wrap; }
.overflow-menu { position: relative; display: none; }  /* solo móvil */
.overflow-btn { padding: .45rem .55rem; }
.overflow-dropdown {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 40;
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0,0,0,.16); padding: .4rem; min-width: 190px;
  display: flex; flex-direction: column; gap: .15rem;
}
[data-theme="dark"] .overflow-dropdown { background: var(--paper-2); }
.overflow-dropdown button {
  display: flex; align-items: center; gap: .5rem; width: 100%; text-align: left;
  background: none; border: none; padding: .6rem .7rem; border-radius: 8px;
  font-size: .9rem; color: var(--ink); cursor: pointer; font-family: inherit;
}
.overflow-dropdown button:hover { background: var(--paper-2); }
[data-theme="dark"] .overflow-dropdown button:hover { background: var(--paper-3); }
.overflow-dropdown button.danger { color: var(--danger); }
.overflow-dropdown button.primary { color: var(--accent); font-weight: 600; }
.doc-search-mobile {
  display: none; width: 100%; margin-top: .6rem;
  border: 1px solid var(--line); border-radius: 9px; padding: .5rem .7rem;
  background: var(--paper); font-size: .9rem; font-family: inherit; color: var(--ink);
}
.doc-search-mobile:focus { outline: none; border-color: var(--accent); }

/* ---------- Tour guiado ---------- */
.tour-overlay { position: fixed; inset: 0; z-index: 90; }
.tour-spotlight {
  position: absolute; border-radius: 12px;
  box-shadow: 0 0 0 9999px rgba(14,14,16,.62);
  transition: all .35s cubic-bezier(.4,0,.2,1); pointer-events: none;
  border: 2px solid var(--accent);
}
.tour-pop {
  position: absolute; z-index: 91; width: 300px; max-width: calc(100vw - 32px);
  background: var(--paper); border-radius: 16px; box-shadow: 0 20px 50px rgba(0,0,0,.3);
  padding: 1.1rem 1.2rem; transition: all .35s cubic-bezier(.4,0,.2,1);
}
[data-theme="dark"] .tour-pop { background: var(--paper-2); border: 1px solid var(--line); }
.tour-pop-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .5rem; }
.tour-step-num { font-size: .72rem; font-weight: 700; color: var(--accent); letter-spacing: .04em; }
.tour-skip { background: none; border: none; color: var(--muted); font-size: .78rem; cursor: pointer; }
.tour-skip:hover { color: var(--ink); }
.tour-pop h3 { margin: 0 0 .4rem; font-size: 1.05rem; font-family: var(--font-display); }
.tour-pop p { margin: 0 0 1rem; font-size: .88rem; line-height: 1.55; color: var(--muted); }
.tour-foot { display: flex; justify-content: space-between; gap: .5rem; }
.tour-foot .btn-primary, .tour-foot .btn-ghost { font-size: .82rem; padding: .45rem .9rem; }
@media (max-width: 720px) { .tour-pop { width: calc(100vw - 32px); } }


/* ---------- Topbar hamburguesa (móvil) ---------- */
.topbar-menu { position: relative; display: none; }
.topbar-menu-btn { padding: .4rem .5rem; }
.topbar-menu .overflow-dropdown { right: 0; top: calc(100% + 8px); }
@media (max-width: 720px) {
  .topbar-menu { display: block; }
}


/* ---------- Menú de acciones por fila (⋯) ---------- */
.row-menu { position: relative; display: none; }  /* oculto en desktop */
.row-menu-btn { padding: .3rem .45rem; }
.row-menu-dd {
  position: fixed; z-index: 95;
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
  box-shadow: 0 10px 28px rgba(0,0,0,.22); padding: .35rem; min-width: 170px;
  display: flex; flex-direction: column; gap: .1rem;
}
[data-theme="dark"] .row-menu-dd { background: var(--paper-2); }
.row-menu-dd a, .row-menu-dd button {
  display: block; width: 100%; text-align: left; background: none; border: none;
  padding: .55rem .7rem; border-radius: 7px; font-size: .88rem; color: var(--ink);
  cursor: pointer; font-family: inherit; text-decoration: none;
}
.row-menu-dd a:hover, .row-menu-dd button:hover { background: var(--paper-2); }
[data-theme="dark"] .row-menu-dd a:hover, [data-theme="dark"] .row-menu-dd button:hover { background: var(--paper-3); }
.row-menu-dd .danger { color: var(--danger); }

/* En móvil: ocultar acciones inline, mostrar el ⋯ */
@media (max-width: 720px) {
  .row-actions .inline-act { display: none; }
  .row-menu { display: block; }
  .row-actions { gap: 0; flex-wrap: nowrap; justify-content: flex-end; }
}

/* ---------- Icono/nombre clickeable para preview ---------- */
.doc-icon.clickable, .doc-thumb.clickable { cursor: pointer; }
.doc-icon.clickable:hover, .doc-thumb.clickable:hover { box-shadow: 0 0 0 2px var(--accent); }
.name-clickable { cursor: pointer; }
.name-clickable:hover { color: var(--accent); }

/* ---------- Selector de cliente (móvil) ---------- */
.client-picker-btn {
  display: none; align-items: center; justify-content: space-between; gap: .5rem;
  width: 100%; margin-bottom: .9rem; padding: .6rem .9rem;
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
  font-size: .92rem; font-weight: 600; color: var(--ink); cursor: pointer; font-family: inherit;
}
[data-theme="dark"] .client-picker-btn { background: var(--paper-2); }
.client-picker-btn svg { flex-shrink: 0; color: var(--muted); }