:root{
  --bg:#f4f6fb; --card:#fff; --text:#0f172a; --muted:#64748b; --line:#e2e8f0;
  --primary:#1d4ed8; --primary-2:#2563eb; --primary-soft:#e0e7ff;
  --danger:#dc2626; --ok:#16a34a; --warn:#d97706;
  --radius:12px; --shadow:0 1px 2px rgba(15,23,42,.06),0 4px 16px rgba(15,23,42,.06);
  --top:58px; --side:270px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);font-size:15px;-webkit-tap-highlight-color:transparent}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--primary-2)}
.hidden{display:none!important}
.muted{color:var(--muted)} .small{font-size:13px} .center{text-align:center}
.spacer{flex:1}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;padding:8px 14px;border-radius:10px;cursor:pointer;font-weight:550;font-size:14px;text-decoration:none;color:var(--text);white-space:nowrap;transition:background .15s,border-color .15s}
.btn:hover{background:#f8fafc;border-color:#cbd5e1}
.btn:disabled{opacity:.6;cursor:default}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-2);border-color:var(--primary-2)}
.btn-danger{background:#fff;border-color:#fecaca;color:var(--danger)}
.btn-danger:hover{background:#fef2f2}
.btn-danger.solid{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft)}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:transparent;color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.22)}
.btn-block{width:100%;justify-content:center;padding:12px}
.icon-btn{border:0;background:transparent;width:36px;height:36px;border-radius:9px;cursor:pointer;font-size:18px;display:inline-grid;place-items:center;color:var(--muted)}
.icon-btn:hover{background:#eef2f7;color:var(--text)}
.icon-btn.light{color:#fff}.icon-btn.light:hover{background:rgba(255,255,255,.15)}

/* ---------- Formularios ---------- */
label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px}
input[type=text],input[type=password],input[type=number],input:not([type]),input[type=search],textarea,.select{width:100%;padding:10px 12px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}
input:focus,textarea:focus,.select:focus{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
textarea{min-height:70px;resize:vertical}
.form-error{background:#fee2e2;color:#991b1b;padding:9px 12px;border-radius:10px;font-size:14px;margin:12px 0 0}
.pass-wrap{position:relative}
.pass-wrap input{padding-right:44px}
.pass-toggle{position:absolute;right:4px;top:50%;transform:translateY(-50%);border:0;background:transparent;cursor:pointer;font-size:16px;width:36px;height:36px;opacity:.6}
.check{display:flex;align-items:center;gap:8px;font-weight:500;margin-top:14px}
.check input{width:18px;height:18px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.hint{font-size:12px;color:var(--muted);margin-top:4px}

/* ---------- Splash ---------- */
.splash{position:fixed;inset:0;display:grid;place-items:center;background:var(--bg);z-index:100}
.spinner{width:36px;height:36px;border:3px solid var(--primary-soft);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- Login ---------- */
.login{min-height:100%;display:grid;place-items:center;padding:20px;background:linear-gradient(160deg,#1e3a8a 0%,#1d4ed8 45%,#0ea5e9 100%)}
.login-card{background:#fff;width:min(400px,100%);padding:32px 28px;border-radius:20px;box-shadow:0 20px 60px rgba(2,6,23,.35)}
.login-logo{width:64px;height:64px;border-radius:16px;display:block;margin:0 auto 10px}
.login-card h1{text-align:center;margin:0;font-size:24px}
.login-card > .muted{text-align:center;margin:4px 0 14px}
.login-card .btn-block{margin-top:20px}

/* ---------- Topbar ---------- */
.topbar{position:sticky;top:0;z-index:30;height:var(--top);display:flex;align-items:center;gap:10px;padding:0 14px;background:#fff;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px}
.brand img{width:30px;height:30px;border-radius:8px}
.user-menu{position:relative}
.user-chip{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 12px 4px 4px;cursor:pointer;max-width:240px}
.user-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:550;font-size:14px}
.avatar{width:28px;height:28px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:700;flex:none}
.dropdown{position:absolute;right:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);min-width:230px;padding:6px;z-index:40}
.dropdown-head{padding:8px 10px 10px;border-bottom:1px solid var(--line);margin-bottom:4px;display:flex;flex-direction:column}
.dropdown button{display:block;width:100%;text-align:left;border:0;background:transparent;padding:9px 10px;border-radius:8px;cursor:pointer}
.dropdown button:hover{background:#f1f5f9}
.dropdown .danger{color:var(--danger)}

/* ---------- Layout ---------- */
.layout{display:flex;min-height:calc(100% - var(--top))}
.sidebar{width:var(--side);flex:none;background:#fff;border-right:1px solid var(--line);padding:12px;position:sticky;top:var(--top);height:calc(100vh - var(--top));overflow:auto}
.side-nav a{display:block;padding:9px 12px;border-radius:9px;color:var(--text);text-decoration:none;font-weight:550}
.side-nav a:hover{background:#f1f5f9}
.side-nav a.active{background:var(--primary-soft);color:var(--primary)}
.side-title{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:700;margin:18px 6px 8px}
.side-search{margin-bottom:8px;padding:8px 10px!important;font-size:14px}
.side-clients a{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:9px;color:var(--text);text-decoration:none;font-size:14px}
.side-clients a:hover{background:#f1f5f9}
.side-clients a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.side-clients .avatar{width:24px;height:24px;font-size:10px;background:#64748b}
.side-clients a.inactive{opacity:.5}
.side-clients span.nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.main{flex:1;min-width:0;padding:18px 22px 100px}
.pane{max-width:1200px;margin:0 auto;position:relative}
.pane-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.pane-head h2{margin:0;font-size:22px}
.pane-head .search{max-width:220px}
.backdrop{position:fixed;inset:0;background:rgba(15,23,42,.4);z-index:34}

/* ---------- Explorador ---------- */
.owner-banner{display:flex;align-items:center;gap:16px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;margin-bottom:14px}
.owner-banner h2{margin:0;font-size:19px}
.usage{margin-left:auto;min-width:200px;font-size:13px;color:var(--muted)}
.usage .bar{height:6px;background:#e2e8f0;border-radius:9px;overflow:hidden;margin-top:5px}
.usage .bar i{display:block;height:100%;background:var(--primary-2)}
.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.toolbar .search{max-width:220px}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:2px;font-size:16px;min-width:0}
.crumbs a{padding:4px 8px;border-radius:8px;text-decoration:none;color:var(--muted);font-weight:550}
.crumbs a:hover{background:#e9eef6;color:var(--text)}
.crumbs a:last-child{color:var(--text);font-weight:700}
.crumbs .sep{color:#cbd5e1}
.actions-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;align-items:center}

.file-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.file-list:empty{display:none}
.frow{display:grid;grid-template-columns:28px 40px 1fr 110px 150px 120px;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid #f1f5f9;cursor:pointer;user-select:none}
.frow:last-child{border-bottom:0}
.frow:hover{background:#f8fafc}
.frow.selected{background:#eef2ff}
.frow.head{cursor:default;background:#f8fafc;font-size:12px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.03em}
.frow.head:hover{background:#f8fafc}
.frow .sortable{cursor:pointer}
.frow .sortable:hover{color:var(--text)}
.fname{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.fmeta{font-size:13px;color:var(--muted);white-space:nowrap}
.fact{display:flex;justify-content:flex-end;gap:2px}
.fact .icon-btn{width:32px;height:32px;font-size:15px}
.frow input[type=checkbox]{width:17px;height:17px;cursor:pointer}
.ficon{width:36px;height:36px;border-radius:9px;display:grid;place-items:center;font-size:10px;font-weight:800;color:#fff;letter-spacing:.02em}
.ficon.dir{background:#fbbf24;font-size:18px}
.ficon.pdf{background:#dc2626}.ficon.xml{background:#ea580c}.ficon.xls{background:#16a34a}
.ficon.doc{background:#2563eb}.ficon.img{background:#9333ea}.ficon.zip{background:#475569}
.ficon.vid{background:#db2777}.ficon.aud{background:#0891b2}.ficon.txt{background:#64748b}.ficon.other{background:#94a3b8}
.ficon img{width:36px;height:36px;object-fit:cover;border-radius:9px}

.empty{text-align:center;padding:50px 20px;background:#fff;border:2px dashed var(--line);border-radius:var(--radius)}
.empty-icon{font-size:44px}
.empty p{margin:6px 0}
.dropzone{position:fixed;inset:0;z-index:60;background:rgba(29,78,216,.12);border:3px dashed var(--primary-2);display:grid;place-items:center;pointer-events:none}
.dropzone div{background:var(--primary);color:#fff;padding:16px 26px;border-radius:14px;font-weight:700;font-size:18px;box-shadow:var(--shadow)}

/* ---------- Tabla de clientes ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.stat b{display:block;font-size:24px}
.stat span{color:var(--muted);font-size:13px}
.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:auto}
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);background:#f8fafc;padding:10px 12px;white-space:nowrap}
.table td{padding:10px 12px;border-top:1px solid #f1f5f9;vertical-align:middle}
.table tr:hover td{background:#fafbfd}
.table .nm{font-weight:600}
.table .nm small{display:block;font-weight:400;color:var(--muted)}
.table .acts{white-space:nowrap;text-align:right}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}
.badge.ok{background:#dcfce7;color:#166534}.badge.off{background:#f1f5f9;color:#64748b}.badge.admin{background:#ede9fe;color:#6d28d9}
.badge.new{background:#fef3c7;color:#92400e}

/* ---------- Actividad ---------- */
.activity{background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.act{display:flex;gap:12px;padding:11px 14px;border-bottom:1px solid #f1f5f9;align-items:flex-start}
.act:last-child{border-bottom:0}
.act .ai{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#f1f5f9;flex:none}
.act .at{font-size:14px}
.act .ad{font-size:12.5px;color:var(--muted);margin-top:2px;word-break:break-all}
.act .tm{margin-left:auto;font-size:12px;color:var(--muted);white-space:nowrap}

/* ---------- Subidas ---------- */
.uploads{position:fixed;right:16px;bottom:calc(16px + var(--safe-b));width:min(360px,calc(100vw - 32px));background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 10px 40px rgba(15,23,42,.2);z-index:50;overflow:hidden}
.uploads-head{display:flex;align-items:center;justify-content:space-between;padding:8px 8px 8px 14px;background:#0f172a;color:#fff}
.uploads-head .icon-btn{color:#fff}
.uploads-body{max-height:260px;overflow:auto}
.up{padding:9px 14px;border-bottom:1px solid #f1f5f9;font-size:13px}
.up .un{display:flex;justify-content:space-between;gap:8px}
.up .un span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.up .bar{height:5px;background:#e2e8f0;border-radius:9px;margin-top:6px;overflow:hidden}
.up .bar i{display:block;height:100%;width:0;background:var(--primary-2);transition:width .2s}
.up.done .bar i{background:var(--ok)}
.up.err .bar i{background:var(--danger)}
.up.err .st{color:var(--danger)}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;z-index:70;background:rgba(15,23,42,.45);display:grid;place-items:center;padding:16px}
.modal-card{background:#fff;border-radius:16px;width:min(480px,100%);max-height:calc(100vh - 32px);display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(2,6,23,.3)}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 4px 20px}
.modal-head h3{margin:0;font-size:18px}
.modal-body{padding:4px 20px 8px;overflow:auto}
.modal-foot{display:flex;justify-content:flex-end;gap:8px;padding:12px 20px 18px}
.modal-body ol{padding-left:20px;line-height:1.6}

/* ---------- Visor ---------- */
.viewer{position:fixed;inset:0;z-index:80;background:rgba(2,6,23,.94);display:flex;flex-direction:column}
.viewer-head{display:flex;align-items:center;gap:8px;padding:8px 10px;color:#fff;padding-top:max(8px,env(safe-area-inset-top))}
.viewer-head .icon-btn{color:#fff;font-size:24px}
.viewer-title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.viewer-body{flex:1;min-height:0;display:grid;place-items:center;padding:8px 8px calc(8px + var(--safe-b))}
.viewer-body img,.viewer-body video{max-width:100%;max-height:100%;object-fit:contain}
.viewer-body iframe{width:100%;height:100%;border:0;background:#fff;border-radius:6px}
.viewer-body pre{width:100%;height:100%;margin:0;overflow:auto;background:#fff;color:#0f172a;padding:16px;border-radius:6px;font-size:13px;white-space:pre-wrap;word-break:break-word}
.viewer-body .nopreview{color:#fff;text-align:center}

/* ---------- Toasts ---------- */
.toast-wrap{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(20px + var(--safe-b));z-index:90;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
.toast{background:#0f172a;color:#fff;padding:10px 16px;border-radius:10px;font-size:14px;box-shadow:var(--shadow);animation:pop .2s ease-out;max-width:90vw}
.toast.err{background:#b91c1c}.toast.ok{background:#15803d}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- Responsive ---------- */
.only-mobile{display:none}
@media (max-width: 900px){
  .frow{grid-template-columns:24px 40px 1fr 44px}
  .frow .c-size,.frow .c-date{display:none}
  .frow .fname-wrap .fmeta{display:block!important}
  .table th:nth-child(2),.table td:nth-child(2),.table th:nth-child(6),.table td:nth-child(6){display:none}
}
@media (max-width: 760px){
  :root{--top:54px}
  .only-mobile{display:inline-grid}
  .main{padding:12px 12px 110px}
  .sidebar{position:fixed;left:0;top:0;bottom:0;height:100%;z-index:35;transform:translateX(-100%);transition:transform .2s;box-shadow:var(--shadow)}
  .sidebar.open{transform:none}
  .user-name{display:none}
  .user-chip{padding:4px}
  #install-btn{padding:6px 10px;font-size:13px}
  .toolbar .search,.pane-head .search{max-width:none;flex:1 1 100%}
  .actions-row .btn{padding:8px 11px}
  .frow{gap:6px;padding:8px 8px}
  .frow .c-check{display:none}
  .frow{grid-template-columns:40px 1fr 44px}
  .fact .icon-btn:not(.more){display:none}
  .table th:nth-child(3),.table td:nth-child(3),.table th:nth-child(5),.table td:nth-child(5){display:none}
  .row2{grid-template-columns:1fr}
  .viewer-head .btn{padding:7px 9px;font-size:13px}
}
@media (min-width: 761px){ .fact .more{display:none} }

/* Menú contextual de archivo (móvil) */
.ctx{position:fixed;z-index:75;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 40px rgba(15,23,42,.2);padding:6px;min-width:200px}
.ctx button{display:block;width:100%;text-align:left;border:0;background:transparent;padding:10px 12px;border-radius:8px;cursor:pointer;font-size:15px}
.ctx button:hover{background:#f1f5f9}
.ctx .danger{color:var(--danger)}