:root{--bg:#f5f5f7;--panel:rgba(255,255,255,.82);--text:#1d1d1f;--muted:#6e6e73;--line:rgba(0,0,0,.08);--blue:#0071e3;--blue2:#0077ed;--shadow:0 18px 50px rgba(0,0,0,.09);--radius:22px}
*{box-sizing:border-box}html{background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",sans-serif;color:var(--text)}body{margin:0;min-height:100vh;background:radial-gradient(circle at 85% 0,rgba(0,113,227,.08),transparent 25%),var(--bg)}button,input{font:inherit}.hidden{display:none!important}
.topbar{height:72px;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:0 max(18px,calc((100vw - 1320px)/2));background:rgba(245,245,247,.78);backdrop-filter:saturate(180%) blur(24px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:700;font-size:19px}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:#111;color:#fff;font-size:13px}.header-actions{display:flex;gap:10px}.button{border:0;border-radius:12px;padding:11px 16px;font-weight:600;cursor:pointer;transition:.2s transform,.2s opacity}.button:active{transform:scale(.97)}.button.primary{background:var(--blue);color:#fff}.button.primary:hover{background:var(--blue2)}.button.secondary{background:rgba(255,255,255,.9);color:var(--text);border:1px solid var(--line)}
.shell{max-width:1320px;margin:auto;padding:42px 24px 80px}.hero{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}.eyebrow{color:var(--blue);font-weight:700;margin:0 0 8px}.hero h1{font-size:clamp(34px,5vw,64px);line-height:.98;letter-spacing:-.045em;max-width:820px;margin:0}.hero p:not(.eyebrow){color:var(--muted);font-size:18px;max-width:670px;line-height:1.5}.storage-pill{white-space:nowrap;background:#fff;border:1px solid var(--line);box-shadow:0 8px 25px rgba(0,0,0,.05);border-radius:999px;padding:11px 16px;color:var(--muted);font-size:14px}
.breadcrumbs{display:flex;align-items:center;gap:7px;overflow:auto;padding:4px 0 16px;scrollbar-width:none}.crumb{border:0;background:transparent;color:var(--muted);padding:5px 2px;cursor:pointer;white-space:nowrap}.crumb:last-child{color:var(--text);font-weight:600}.crumb-sep{color:#aaa}.toolbar{display:flex;gap:10px;margin-bottom:22px}.search-wrap{flex:1;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:15px;padding:0 14px}.search-wrap input{width:100%;height:46px;border:0;outline:0;background:transparent;font-size:16px}.icon-button{width:46px;height:46px;border:1px solid var(--line);border-radius:15px;background:#fff;cursor:pointer;font-size:20px}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{position:relative;background:var(--panel);border:1px solid rgba(255,255,255,.8);border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 20px rgba(0,0,0,.045);transition:.25s transform,.25s box-shadow;cursor:pointer}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.thumb{aspect-ratio:16/10;background:#e8e8ed;overflow:hidden;position:relative}.thumb img{width:100%;height:100%;object-fit:cover;display:block}.folder-thumb{display:grid;place-items:center;background:linear-gradient(145deg,#fff,#ececf1)}.folder-shape{width:86px;height:62px;background:linear-gradient(180deg,#64a9ff,#0878ed);border-radius:10px 14px 14px 14px;position:relative;box-shadow:0 14px 30px rgba(0,113,227,.23)}.folder-shape:before{content:"";position:absolute;left:0;top:-13px;width:39px;height:18px;border-radius:9px 9px 0 0;background:#64a9ff}.badge360{position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,.68);backdrop-filter:blur(10px);color:#fff;font-size:12px;font-weight:700;padding:6px 9px;border-radius:999px}.card-body{padding:14px 15px 16px;display:flex;align-items:center;justify-content:space-between;gap:10px}.card-title{font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-meta{font-size:12px;color:var(--muted);margin-top:4px}.more{flex:none;width:32px;height:32px;border-radius:10px;border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:20px}.more:hover{background:#eee}.empty{text-align:center;padding:80px 20px;background:rgba(255,255,255,.55);border:1px dashed rgba(0,0,0,.12);border-radius:24px}.empty-icon{margin:auto;width:76px;height:76px;display:grid;place-items:center;background:#111;color:#fff;border-radius:24px;font-weight:800}.empty h2{margin-bottom:5px}.empty p{color:var(--muted)}
.modal-backdrop{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.28);backdrop-filter:blur(18px);display:grid;place-items:center;padding:20px}.dialog{width:min(440px,100%);background:rgba(255,255,255,.96);border-radius:24px;padding:25px;box-shadow:0 30px 100px rgba(0,0,0,.23)}.dialog h2{margin-top:0}.dialog input{width:100%;height:50px;border:1px solid var(--line);border-radius:13px;padding:0 14px;outline:none}.dialog input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.12)}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}
.viewer-modal{position:fixed;inset:0;z-index:50;background:#000;display:flex;flex-direction:column}.viewer-header{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 14px;color:#fff;background:rgba(0,0,0,.75);backdrop-filter:blur(20px)}.viewer-close{justify-self:start;width:40px;height:40px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:28px;cursor:pointer}.viewer-title{font-weight:600;max-width:50vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.viewer-fullscreen{justify-self:end;border:0;background:rgba(255,255,255,.14);color:#fff;border-radius:10px;padding:9px 12px;cursor:pointer}#viewer{flex:1;min-height:0}
.upload-overlay{position:fixed;inset:0;z-index:100;background:rgba(245,245,247,.42);backdrop-filter:blur(22px) saturate(130%);display:grid;place-items:center;padding:20px}.upload-card{width:min(430px,100%);text-align:center;background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.9);border-radius:28px;padding:34px;box-shadow:0 30px 100px rgba(0,0,0,.16)}.spinner{width:42px;height:42px;margin:auto;border:4px solid #d7d7dc;border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite}.upload-card h2{margin-bottom:6px}.upload-card p{color:var(--muted)}.progress-track{height:8px;background:#e4e4e9;border-radius:999px;overflow:hidden;margin:22px 0 9px}.progress-bar{height:100%;width:0;background:var(--blue);transition:width .15s linear;border-radius:999px}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;z-index:120;left:50%;bottom:24px;transform:translate(-50%,30px);opacity:0;background:#1d1d1f;color:#fff;border-radius:14px;padding:12px 16px;pointer-events:none;transition:.25s}.toast.show{transform:translate(-50%,0);opacity:1}
@media(max-width:980px){.grid{grid-template-columns:repeat(3,1fr)}.hero{align-items:start;flex-direction:column}.storage-pill{align-self:start}}
@media(max-width:700px){.topbar{height:64px;padding:0 14px}.brand span:last-child{display:none}.header-actions .button{padding:10px 12px;font-size:14px}.shell{padding:28px 14px 70px}.hero{margin-bottom:25px}.hero h1{font-size:40px}.hero p:not(.eyebrow){font-size:16px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card{border-radius:18px}.card-body{padding:12px}.card-title{font-size:14px}.viewer-header{grid-template-columns:auto 1fr auto;gap:10px}.viewer-title{text-align:center;max-width:none}.viewer-fullscreen{font-size:0;width:40px;height:40px;border-radius:50%}.viewer-fullscreen:after{content:"⛶";font-size:20px}.upload-card{padding:28px 22px}}
@media(max-width:420px){.grid{grid-template-columns:1fr 1fr}.thumb{aspect-ratio:1.15}.folder-shape{transform:scale(.82)}.button.secondary#newFolderBtn{font-size:0}.button.secondary#newFolderBtn:after{content:"+ Carpeta";font-size:14px}}
.button.danger-soft{background:#fff0f0;color:#d70015;border:1px solid rgba(215,0,21,.12)}
.delete-one{flex:none;width:32px;height:32px;border-radius:10px;border:0;background:#fff0f0;color:#d70015;cursor:pointer;font-size:22px;line-height:1}.delete-one:hover{background:#ffe2e4}
.select-control{position:absolute;z-index:4;top:10px;left:10px;cursor:pointer}.select-control input{position:absolute;opacity:0;pointer-events:none}.select-control span{display:block;width:25px;height:25px;border-radius:50%;background:rgba(255,255,255,.9);border:1px solid rgba(0,0,0,.18);box-shadow:0 3px 12px rgba(0,0,0,.12)}.select-control input:checked+span{background:var(--blue);border-color:var(--blue)}.select-control input:checked+span:after{content:"✓";display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800;height:100%}
.selection-bar,.confirm-bar{position:fixed;left:50%;bottom:22px;z-index:110;transform:translateX(-50%);display:flex;align-items:center;gap:20px;background:rgba(29,29,31,.94);color:#fff;padding:10px 12px 10px 16px;border-radius:16px;box-shadow:0 18px 50px rgba(0,0,0,.25);backdrop-filter:blur(18px);max-width:calc(100vw - 24px)}.selection-bar>div,.confirm-bar>div{display:flex;gap:8px}.mini-button{border:0;border-radius:10px;padding:9px 12px;background:rgba(255,255,255,.14);color:#fff;font-weight:650;cursor:pointer;white-space:nowrap}.mini-button.danger{background:#ff453a}.mini-button:disabled{opacity:.55;cursor:wait}.confirm-bar{z-index:130;background:rgba(255,255,255,.96);color:var(--text);border:1px solid var(--line)}.confirm-bar .mini-button{background:#ececf1;color:var(--text)}.confirm-bar .mini-button.danger{background:#ff3b30;color:#fff}
@media(max-width:700px){.toolbar{flex-wrap:wrap}.search-wrap{flex-basis:calc(100% - 58px)}.button.danger-soft{order:3;width:100%}.selection-bar,.confirm-bar{bottom:12px;width:calc(100vw - 24px);justify-content:space-between;gap:8px}.selection-bar span,.confirm-bar span{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}

/* Safe viewer/back patch */
.brand-row{display:flex;align-items:center;gap:10px}.top-back{width:42px;height:42px;border:0;border-radius:50%;background:#fff;box-shadow:0 4px 16px rgba(0,0,0,.08);font-size:34px;line-height:1;cursor:pointer;display:grid;place-items:center;padding:0 0 4px}.top-back.hidden{display:none}.flat-preview{position:absolute;inset:64px 0 0;background:#050505;display:flex;align-items:center;justify-content:center;overflow:auto}.flat-preview.hidden{display:none}.flat-preview img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;image-rendering:auto}.flat-note{position:absolute;left:50%;bottom:max(18px,env(safe-area-inset-bottom));transform:translateX(-50%);background:rgba(20,20,20,.78);color:#fff;padding:9px 13px;border-radius:999px;font-size:12px;white-space:nowrap;backdrop-filter:blur(12px)}@media(max-width:700px){.brand-row .brand>span:last-child{display:none}.top-back{width:40px;height:40px}.flat-note{max-width:90%;white-space:normal;text-align:center}}

/* v6 — file actions, clearer deletion and resilient uploads */
.compact{padding:10px 14px}.card-info{min-width:0;flex:1}.card-menu{border:0;background:transparent;font-size:22px;font-weight:800;letter-spacing:1px;padding:8px 6px;color:#6e6e73;line-height:1;cursor:pointer}.card-menu:hover{background:#f2f2f7;border-radius:12px}.select-control{display:none}.selection-mode .select-control{display:block}.selection-mode .card-menu{display:none}
.action-sheet-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.28);backdrop-filter:blur(3px);z-index:120}.action-sheet{position:fixed;z-index:121;left:50%;bottom:max(16px,env(safe-area-inset-bottom));transform:translateX(-50%);width:min(420px,calc(100% - 24px));background:rgba(255,255,255,.97);border-radius:24px;padding:8px;box-shadow:0 24px 70px rgba(0,0,0,.24)}.sheet-handle{width:42px;height:5px;border-radius:99px;background:#d1d1d6;margin:4px auto 10px}.sheet-title{padding:8px 16px 12px;text-align:center;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.action-sheet button{display:block;width:100%;border:0;border-top:1px solid #ececf0;background:transparent;padding:15px 16px;text-align:left;font-size:17px;cursor:pointer}.action-sheet .danger-text{color:#d70015}.action-sheet .sheet-cancel{margin-top:8px;border:0;background:#f2f2f7;border-radius:16px;text-align:center;font-weight:700}
.delete-dialog{text-align:center;max-width:390px}.delete-icon{width:58px;height:58px;border-radius:18px;background:#fff0f1;color:#d70015;display:grid;place-items:center;font-size:28px;margin:0 auto 14px}.delete-dialog p{color:#6e6e73;line-height:1.45}.dialog-actions.stacked{display:grid;grid-template-columns:1fr;gap:9px}.danger-solid{background:#d70015!important;color:#fff!important;border-color:#d70015!important}
.destination-dialog{max-width:520px}.destination-list{height:min(48vh,430px);overflow:auto;margin:12px 0;border:1px solid #e5e5ea;border-radius:16px}.destination-item{width:100%;display:grid;grid-template-columns:26px 1fr 24px;align-items:center;gap:8px;border:0;border-bottom:1px solid #ededf2;background:#fff;padding:13px 14px;text-align:left;font-size:15px;cursor:pointer}.destination-item:last-child{border-bottom:0}.destination-item b{opacity:0;color:#0071e3}.destination-item.selected{background:#eef6ff}.destination-item.selected b{opacity:1}.destination-item span:nth-child(2){overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.upload-actions{margin-top:14px}.upload-pill{position:fixed;z-index:110;right:16px;bottom:max(18px,env(safe-area-inset-bottom));display:flex;align-items:center;gap:9px;background:#1d1d1f;color:#fff;border-radius:999px;padding:10px 12px;box-shadow:0 12px 35px rgba(0,0,0,.28);font-size:14px}.upload-pill button{border:0;background:#fff;color:#111;border-radius:999px;padding:6px 10px;font-weight:700}.upload-dot{width:9px;height:9px;background:#34c759;border-radius:50%;animation:pulse 1.2s infinite}@keyframes pulse{50%{opacity:.35}}
.selection-bar{max-width:calc(100% - 24px);overflow-x:auto}.selection-bar>div{display:flex;gap:6px;flex-wrap:nowrap}
@media(max-width:700px){.hero{display:none}.shell{padding-top:18px}.toolbar{grid-template-columns:1fr auto auto auto}.toolbar .compact{font-size:0;width:42px;padding:0}.toolbar .compact:after{content:'✓';font-size:18px}.action-sheet{bottom:max(8px,env(safe-area-inset-bottom))}.selection-bar{left:12px;right:12px;transform:none;width:auto;justify-content:flex-start}.selection-bar>span{display:none}.destination-dialog{height:min(82vh,650px);display:flex;flex-direction:column}.destination-list{height:auto;flex:1}.dialog{width:calc(100% - 24px)}}

.upload-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.upload-actions .danger{background:#fff0f0;color:#c62828;border:1px solid #ffd2d2}

/* Authentication and user administration */
.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top,#fff 0,#f5f5f7 48%,#ececf1 100%)}
.auth-card{width:min(440px,100%);background:rgba(255,255,255,.88);backdrop-filter:blur(24px);border:1px solid rgba(0,0,0,.08);border-radius:28px;padding:34px;box-shadow:0 24px 70px rgba(0,0,0,.12)}
.auth-logo{width:64px;height:64px;border-radius:20px;display:grid;place-items:center;background:#111;color:#fff;font-weight:800;font-size:20px;margin-bottom:24px}.auth-card h1{font-size:34px;margin:4px 0 10px}.auth-copy{color:#6e6e73;margin:0 0 24px}.auth-form,.admin-form{display:grid;gap:16px}.auth-form label,.admin-form label{display:grid;gap:7px;font-size:13px;font-weight:700;color:#3a3a3c}.auth-form input,.admin-form input,.admin-form select,.user-fields input,.user-fields select{width:100%;border:1px solid #d2d2d7;background:#fff;border-radius:14px;padding:13px 14px;font:inherit;outline:none}.auth-form input:focus,.admin-form input:focus,.admin-form select:focus,.user-fields input:focus,.user-fields select:focus{border-color:#0071e3;box-shadow:0 0 0 4px rgba(0,113,227,.12)}.auth-submit{width:100%;justify-content:center;padding:14px}.form-error,.form-success{padding:12px 14px;border-radius:14px;margin:0 0 18px;font-size:14px}.form-error{background:#fff0f0;color:#b42318}.form-success{background:#edfff3;color:#147a3c}.wide{margin:0 0 20px}
.account-menu-wrap{position:relative}.account-button{display:flex;align-items:center;gap:9px;border:0;background:#fff;border-radius:18px;padding:6px 10px 6px 7px;box-shadow:0 1px 0 rgba(0,0,0,.05),0 3px 14px rgba(0,0,0,.08);cursor:pointer}.account-avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#111;color:#fff;font-weight:800}.account-copy{display:grid;text-align:left;line-height:1.1}.account-copy b{font-size:13px}.account-copy small{font-size:11px;color:#777}.account-popover{position:absolute;right:0;top:calc(100% + 10px);z-index:80;min-width:210px;padding:7px;background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:16px;box-shadow:0 18px 50px rgba(0,0,0,.16)}.account-popover a{display:block;padding:11px 12px;border-radius:10px;color:#1d1d1f;text-decoration:none;font-size:14px}.account-popover a:hover{background:#f2f2f7}
.admin-page{background:#f5f5f7;min-height:100vh}.admin-shell{width:min(1250px,calc(100% - 32px));margin:0 auto;padding:36px 0 70px}.admin-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}.admin-heading h1{font-size:42px;margin:3px 0 8px}.admin-heading p{color:#6e6e73;margin:0}.user-chip{background:#fff;border-radius:18px;padding:12px 16px;box-shadow:0 8px 30px rgba(0,0,0,.06);display:grid}.user-chip small{color:#777}.admin-grid{display:grid;grid-template-columns:340px minmax(0,1fr);gap:22px;align-items:start}.admin-panel{background:#fff;border-radius:24px;padding:22px;box-shadow:0 10px 40px rgba(0,0,0,.06)}.admin-panel h2{margin:0 0 18px}.panel-title{display:flex;justify-content:space-between;align-items:center}.panel-title span{background:#f2f2f7;border-radius:999px;padding:5px 10px}.users-list{display:grid;gap:12px}.user-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:14px;align-items:center;padding:15px;border:1px solid #e5e5ea;border-radius:18px}.user-avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#f2f2f7;font-weight:800}.user-fields{display:grid;grid-template-columns:1.1fr 1fr 1fr 1.4fr auto;gap:9px;align-items:center}.user-identity{display:grid}.user-identity small{color:#777;font-size:11px}.switch-line{display:flex;align-items:center;gap:6px;font-size:13px}.user-actions{display:flex;gap:7px}.danger-outline{border:1px solid #ff3b30;color:#d92d20;background:#fff}.danger-outline:hover{background:#fff1f0}
@media(max-width:900px){.admin-grid{grid-template-columns:1fr}.user-row{grid-template-columns:auto 1fr}.user-fields{grid-template-columns:1fr 1fr}.user-actions{grid-column:1/-1;justify-content:flex-end;margin-left:56px}.admin-heading{align-items:flex-start}.user-chip{display:none}}
@media(max-width:620px){.auth-card{padding:26px 20px;border-radius:22px}.auth-card h1{font-size:29px}.header-actions{gap:7px}.account-copy{display:none}.admin-shell{width:min(100% - 20px,1250px);padding-top:22px}.admin-heading h1{font-size:32px}.user-row{grid-template-columns:1fr}.user-avatar{display:none}.user-fields{grid-template-columns:1fr}.user-actions{margin-left:0}.admin-panel{padding:16px;border-radius:20px}}