@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--bg-primary:#0d0f1a;--bg-secondary:#13162a;--bg-tertiary:#1a1e35;--bg-card:#ffffff0a;--bg-card-hover:#ffffff14;--glass-bg:#ffffff0d;--glass-border:#ffffff14;--glass-blur:blur(16px);--accent:#6366f1;--accent-light:#818cf8;--accent-glow:#6366f140;--accent-2:#a855f7;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#475569;--danger:#ef4444;--danger-light:#fca5a5;--success:#22c55e;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 3px #0006;--shadow-md:0 4px 20px #00000080;--shadow-lg:0 8px 40px #0009;--shadow-glow:0 0 40px var(--accent-glow);--transition:.2s ease;--transition-slow:.35s ease;--sidebar-width:260px;--header-height:64px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,system-ui,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}input,textarea{font-family:inherit}ul{list-style:none}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:99px}::-webkit-scrollbar-thumb:hover{background:#fff3}.app-layout{max-width:100vw;height:100dvh;display:flex;overflow:hidden}.app-main{margin-left:var(--sidebar-width);transition:margin-left var(--transition-slow);flex-direction:column;flex:1;min-width:0;max-width:100%;display:flex;overflow:hidden}.app-content{flex:1;padding:32px;overflow:hidden auto}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--glass-border);z-index:100;flex-direction:column;height:100dvh;display:flex;position:fixed;top:0;left:0;overflow:hidden}.sidebar-top{flex-shrink:0;padding:clamp(14px,2vh,24px) clamp(10px,1.5vw,16px) 0}.sidebar-middle{flex:1;min-height:0;padding:clamp(10px,1.5vh,16px) clamp(10px,1.5vw,16px);overflow:hidden auto}.sidebar-bottom{flex-shrink:0;padding:0 clamp(10px,1.5vw,16px) clamp(14px,2vh,24px)}.sidebar-logo{align-items:center;gap:10px;margin-bottom:clamp(14px,2.5vh,28px);padding:0 8px;display:flex}.sidebar-logo-icon{background:linear-gradient(135deg, var(--accent), var(--accent-2));border-radius:var(--radius-sm);width:clamp(30px,4vw,36px);height:clamp(30px,4vw,36px);box-shadow:var(--shadow-glow);flex-shrink:0;place-items:center;display:grid}.sidebar-logo-text{background:linear-gradient(135deg, var(--accent-light), var(--accent-2));-webkit-text-fill-color:transparent;white-space:nowrap;-webkit-background-clip:text;background-clip:text;font-size:clamp(.95rem,1.5vw,1.1rem);font-weight:700}.sidebar-btn-new{background:linear-gradient(135deg, var(--accent), var(--accent-2));border-radius:var(--radius-md);color:#fff;width:100%;transition:opacity var(--transition), transform var(--transition), box-shadow var(--transition);box-shadow:0 4px 16px var(--accent-glow);align-items:center;gap:10px;margin-bottom:clamp(12px,2vh,20px);padding:clamp(9px,1.5vh,12px) clamp(12px,2vw,16px);font-size:clamp(.8rem,1.5vw,.875rem);font-weight:600;display:flex}.sidebar-btn-new:hover{opacity:.9;box-shadow:0 6px 24px var(--accent-glow);transform:translateY(-1px)}.sidebar-section-title{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:8px;padding:0 8px;font-size:clamp(.62rem,1vw,.7rem);font-weight:600}.sidebar-nav{flex-direction:column;gap:2px;display:flex}.sidebar-nav-item{border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;width:100%;transition:background var(--transition), color var(--transition);align-items:center;gap:10px;padding:clamp(8px,1.2vh,10px) 12px;font-size:clamp(.8rem,1.3vw,.875rem);font-weight:500;display:flex}.sidebar-nav-item:hover,.sidebar-nav-item.active{background:var(--bg-card-hover);color:var(--text-primary)}.sidebar-nav-item.active{color:var(--accent-light);background:#6366f126}.sidebar-storage{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius-md);padding:clamp(10px,1.5vh,16px)}.sidebar-storage-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;margin-bottom:clamp(6px,1vh,10px);font-size:clamp(.65rem,1.2vw,.75rem);font-weight:600}.sidebar-storage-info{color:var(--text-muted);justify-content:space-between;margin-top:clamp(4px,.8vh,8px);font-size:clamp(.58rem,1vw,.7rem);display:flex}.sidebar-storage-text{color:var(--text-secondary);margin-bottom:10px;font-size:.75rem}.sidebar-storage-bar-fill{background:linear-gradient(90deg, var(--accent), var(--accent-2));border-radius:99px;width:34%;height:100%}.header{height:var(--header-height);background:var(--bg-secondary);border-bottom:1px solid var(--glass-border);flex-shrink:0;justify-content:space-between;align-items:center;gap:16px;padding:0 32px;display:flex}.header-search{flex:1;max-width:480px;position:relative}.header-search-icon{color:var(--text-muted);pointer-events:none;position:absolute;top:50%;left:14px;transform:translateY(-50%)}.header-search input{background:var(--bg-tertiary);border:1px solid var(--glass-border);border-radius:var(--radius-lg);width:100%;color:var(--text-primary);transition:border-color var(--transition), background var(--transition);outline:none;padding:10px 16px 10px 42px;font-size:.875rem}.header-search input:focus{border-color:var(--accent);background:#6366f10d}.header-search input::placeholder{color:var(--text-muted)}.header-actions{align-items:center;gap:12px;display:flex}.header-icon-btn{border-radius:var(--radius-md);width:38px;height:38px;color:var(--text-secondary);transition:background var(--transition), color var(--transition);place-items:center;display:grid}.header-icon-btn:hover{background:var(--bg-card-hover);color:var(--text-primary)}.header-avatar{background:linear-gradient(135deg, var(--accent), var(--accent-2));color:#fff;cursor:pointer;border-radius:50%;place-items:center;width:36px;height:36px;font-size:.875rem;font-weight:700;display:grid;position:relative}.header-user-menu{background:var(--bg-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-md);z-index:300;min-width:200px;box-shadow:var(--shadow-lg);padding:8px;animation:.15s fadeInDown;position:absolute;top:calc(100% + 8px);right:0}.header-user-info{border-bottom:1px solid var(--glass-border);margin-bottom:4px;padding:8px 12px 12px}.header-user-name{font-size:.875rem;font-weight:600}.header-user-email{color:var(--text-secondary);margin-top:2px;font-size:.75rem}.header-menu-item{border-radius:var(--radius-sm);color:var(--text-secondary);width:100%;transition:background var(--transition), color var(--transition);align-items:center;gap:10px;padding:9px 12px;font-size:.875rem;display:flex}.header-menu-item:hover{background:var(--bg-card-hover);color:var(--text-primary)}.header-menu-item.danger{color:var(--danger-light)}.header-menu-item.danger:hover{background:#ef44441a}.breadcrumb{flex-wrap:wrap;align-items:center;gap:4px;margin-bottom:24px;display:flex}.breadcrumb-item{align-items:center;gap:4px;font-size:.875rem;display:flex}.breadcrumb-link{color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:color var(--transition), background var(--transition);padding:4px 8px}.breadcrumb-link:hover{color:var(--text-primary);background:var(--bg-card-hover)}.breadcrumb-current{color:var(--text-primary);padding:4px 8px;font-weight:600}.breadcrumb-sep{color:var(--text-muted);font-size:.75rem}.section-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.section-title{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);font-size:.8rem;font-weight:600}.item-grid{box-sizing:border-box;grid-template-columns:repeat(auto-fill,minmax(clamp(130px,18vw,180px),1fr));gap:clamp(6px,1.5vw,14px);width:100%;margin-bottom:32px;display:grid;overflow:hidden}.folder-card{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius-md);cursor:pointer;transition:background var(--transition), border-color var(--transition), transform var(--transition);group:folder;min-width:0;max-width:100%;padding:16px;position:relative;overflow:hidden}.folder-card:hover{background:var(--bg-card-hover);border-color:#6366f14d;transform:translateY(-2px)}.folder-card-icon{border-radius:var(--radius-sm);width:48px;height:48px;color:var(--accent-light);background:#6366f126;place-items:center;margin-bottom:12px;display:grid}.folder-card-name{white-space:nowrap;text-overflow:ellipsis;color:var(--text-primary);font-size:.825rem;font-weight:500;overflow:hidden}.folder-card-date{color:var(--text-muted);margin-top:4px;font-size:.7rem}.folder-card-actions{opacity:0;transition:opacity var(--transition);position:absolute;top:10px;right:10px}.folder-card:hover .folder-card-actions{opacity:1}.file-card{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius-md);cursor:pointer;transition:background var(--transition), border-color var(--transition), transform var(--transition);min-width:0;max-width:100%;padding:16px;position:relative;overflow:hidden}.file-card:hover{background:var(--bg-card-hover);border-color:#a855f74d;transform:translateY(-2px)}.file-card-icon{border-radius:var(--radius-sm);letter-spacing:.05em;place-items:center;width:48px;height:48px;margin-bottom:12px;font-size:.65rem;font-weight:700;display:grid}.file-card-name{white-space:nowrap;text-overflow:ellipsis;color:var(--text-primary);font-size:.825rem;font-weight:500;overflow:hidden}.file-card-meta{color:var(--text-muted);margin-top:4px;font-size:.7rem}.file-card-actions{opacity:0;transition:opacity var(--transition);flex-wrap:nowrap;gap:2px;max-width:calc(100% - 12px);display:flex;position:absolute;top:6px;right:6px}.file-card:hover .file-card-actions{opacity:1}.card-action-btn{border-radius:var(--radius-sm);background:var(--bg-secondary);width:26px;height:26px;color:var(--text-secondary);transition:background var(--transition), color var(--transition);flex-shrink:0;place-items:center;display:grid}.card-action-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.card-action-btn.danger:hover{color:var(--danger-light);background:#ef444426}.upload-zone{border:2px dashed var(--glass-border);border-radius:var(--radius-lg);text-align:center;cursor:pointer;transition:border-color var(--transition), background var(--transition);margin-bottom:32px;padding:48px 24px}.upload-zone:hover,.upload-zone.dragging{border-color:var(--accent);background:#6366f10d}.upload-zone-icon{width:56px;height:56px;color:var(--accent-light);background:#6366f11f;border-radius:50%;place-items:center;margin:0 auto 16px;display:grid}.upload-zone-title{color:var(--text-primary);margin-bottom:6px;font-size:.95rem;font-weight:600}.upload-zone-sub{color:var(--text-muted);font-size:.8rem}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:500;background:#000000a6;justify-content:center;align-items:center;padding:20px;animation:.15s fadeIn;display:flex;position:fixed;inset:0;overflow-y:auto}.modal{background:var(--bg-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-xl);width:100%;max-width:500px;max-height:85vh;box-shadow:var(--shadow-lg);flex-direction:column;padding:28px;animation:.2s slideUp;display:flex;overflow:hidden}.modal-title{color:var(--text-primary);flex-shrink:0;margin-bottom:20px;font-size:1.1rem;font-weight:700}.modal-body{flex:1;min-height:0;padding-right:4px;overflow-y:auto}.modal-actions{flex-shrink:0;justify-content:flex-end;gap:12px;margin-top:24px;display:flex}.form-group{margin-bottom:20px}.form-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;font-size:.8rem;font-weight:600;display:block}.form-input{background:var(--bg-tertiary);border:1px solid var(--glass-border);border-radius:var(--radius-md);width:100%;color:var(--text-primary);transition:border-color var(--transition), background var(--transition), box-shadow var(--transition);outline:none;padding:12px 16px;font-size:.9rem}.form-input:focus{border-color:var(--accent);background:#6366f10d;box-shadow:0 0 0 3px #6366f126}.form-input::placeholder{color:var(--text-muted)}.form-error{color:var(--danger-light);margin-top:6px;font-size:.78rem}.btn{border-radius:var(--radius-md);transition:all var(--transition);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:.875rem;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--accent), var(--accent-2));color:#fff;box-shadow:0 4px 16px var(--accent-glow)}.btn-primary:hover:not(:disabled){opacity:.9;box-shadow:0 6px 24px var(--accent-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-tertiary);border:1px solid var(--glass-border);color:var(--text-secondary)}.btn-secondary:hover:not(:disabled){background:var(--bg-card-hover);color:var(--text-primary)}.btn-danger{color:var(--danger-light);background:#ef44441f;border:1px solid #ef44444d}.btn-danger:hover:not(:disabled){background:#ef444433}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-full{width:100%}.btn-lg{padding:14px 24px;font-size:.95rem}.auth-page{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;display:flex;position:relative;overflow:hidden}.auth-bg-glow{pointer-events:none;background:radial-gradient(circle,#6366f11f 0%,#0000 70%);border-radius:50%;width:600px;height:600px;position:absolute;top:-200px;left:-200px}.auth-bg-glow-2{pointer-events:none;background:radial-gradient(circle,#a855f71a 0%,#0000 70%);border-radius:50%;width:400px;height:400px;position:absolute;bottom:-100px;right:-100px}.auth-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-xl);width:90%;max-width:440px;-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);box-shadow:var(--shadow-lg);z-index:1;padding:48px 40px;animation:.3s slideUp;position:relative}.auth-logo{align-items:center;gap:12px;margin-bottom:32px;display:flex}.auth-logo-icon{background:linear-gradient(135deg, var(--accent), var(--accent-2));border-radius:var(--radius-md);width:44px;height:44px;box-shadow:var(--shadow-glow);place-items:center;display:grid}.auth-logo-text{background:linear-gradient(135deg, var(--accent-light), var(--accent-2));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.3rem;font-weight:800}.auth-title{color:var(--text-primary);margin-bottom:6px;font-size:1.6rem;font-weight:800}.auth-subtitle{color:var(--text-secondary);margin-bottom:36px;font-size:.9rem}.auth-footer{text-align:center;color:var(--text-secondary);margin-top:24px;font-size:.85rem}.auth-footer a{color:var(--accent-light);transition:color var(--transition);font-weight:600}.auth-footer a:hover{color:var(--accent-2)}.auth-alert{border-radius:var(--radius-md);color:var(--danger-light);background:#ef44441a;border:1px solid #ef444440;margin-bottom:20px;padding:12px 16px;font-size:.85rem}.empty-state{text-align:center;padding:64px 24px}.empty-state-icon{background:var(--bg-card);border:1px solid var(--glass-border);width:72px;height:72px;color:var(--text-muted);border-radius:50%;place-items:center;margin:0 auto 20px;display:grid}.empty-state-title{color:var(--text-primary);margin-bottom:8px;font-size:1rem;font-weight:600}.empty-state-sub{color:var(--text-muted);font-size:.85rem}.toast-container{z-index:9999;flex-direction:column;gap:8px;display:flex;position:fixed;bottom:24px;right:24px}.toast{border-radius:var(--radius-md);box-shadow:var(--shadow-md);align-items:center;gap:10px;max-width:360px;padding:12px 20px;font-size:.875rem;font-weight:500;animation:.2s slideInRight;display:flex}.toast-success{color:#86efac;background:#22c55e26;border:1px solid #22c55e4d}.toast-error{color:var(--danger-light);background:#ef444426;border:1px solid #ef44444d}.spinner{border:2px solid #ffffff26;border-top-color:currentColor;border-radius:50%;flex-shrink:0;width:20px;height:20px;animation:.6s linear infinite spin}.spinner-lg{border-width:3px;width:40px;height:40px}.loading-screen{flex-direction:column;justify-content:center;align-items:center;gap:16px;height:100vh;display:flex}.upload-progress{margin-top:16px}.upload-progress-label{color:var(--text-secondary);justify-content:space-between;margin-bottom:8px;font-size:.78rem;display:flex}.upload-progress-bar{background:var(--bg-tertiary);border-radius:99px;height:6px;overflow:hidden}.upload-progress-fill{background:linear-gradient(90deg, var(--accent), var(--accent-2));border-radius:99px;height:100%;transition:width .3s}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.preview-modal{background:var(--bg-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-xl);width:92vw;max-width:1000px;max-height:90vh;box-shadow:var(--shadow-lg);flex-direction:column;animation:.2s slideUp;display:flex;overflow:hidden}.preview-header{border-bottom:1px solid var(--glass-border);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;display:flex}.preview-title{align-items:center;gap:10px;min-width:0;display:flex}.preview-filename{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;max-width:400px;font-size:.9rem;font-weight:600;overflow:hidden}.preview-size{color:var(--text-muted);background:var(--bg-tertiary);border-radius:99px;flex-shrink:0;padding:2px 8px;font-size:.75rem}.preview-header-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.preview-btn{border-radius:var(--radius-md);width:34px;height:34px;color:var(--text-secondary);transition:background var(--transition), color var(--transition);background:var(--bg-tertiary);place-items:center;display:grid}.preview-btn:hover{background:var(--bg-card-hover);color:var(--text-primary)}.preview-body{background:var(--bg-primary);flex:1;justify-content:center;align-items:center;min-height:300px;display:flex;position:relative;overflow:auto}.preview-center{text-align:center;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:8px;width:100%;padding:48px 24px;display:flex}.preview-image{object-fit:contain;border-radius:var(--radius-md);max-width:100%;max-height:75vh;display:block}.preview-video{border-radius:var(--radius-md);background:#000;outline:none;max-width:100%;max-height:75vh;display:block}.preview-iframe{border:none;width:100%;height:75vh;display:block}.preview-text{width:100%;height:75vh;color:var(--text-primary);white-space:pre-wrap;word-break:break-word;text-align:left;padding:24px;font-family:Courier New,monospace;font-size:.825rem;line-height:1.7;overflow:auto}.spinner-icon{color:var(--accent-light);animation:.8s linear infinite spin}.file-card-image{padding:0;overflow:hidden}.file-card-image .file-card-name,.file-card-image .file-card-meta{padding:0 12px}.file-card-image .file-card-name{padding-top:10px}.file-card-image .file-card-meta{padding-bottom:12px}.file-card-image .file-card-actions{top:8px;right:8px}.file-card-thumb{background:var(--bg-tertiary);width:100%;height:130px;position:relative;overflow:hidden}.file-card-thumb-img{object-fit:cover;width:100%;height:100%;transition:transform .3s;display:block}.file-card-image:hover .file-card-thumb-img{transform:scale(1.05)}:root{--sp-1:clamp(.25rem, .8vw, .5rem);--sp-2:clamp(.5rem, 1.2vw, .75rem);--sp-3:clamp(.75rem, 1.8vw, 1rem);--sp-4:clamp(1rem, 2.5vw, 1.5rem);--sp-5:clamp(1.25rem, 3vw, 2rem);--sp-6:clamp(1.5rem, 4vw, 2.5rem);--fs-xs:clamp(.6rem, 1.8vw, .72rem);--fs-sm:clamp(.72rem, 2vw, .82rem);--fs-base:clamp(.82rem, 2.2vw, .9rem);--fs-lg:clamp(.9rem, 2.5vw, 1rem);--fs-xl:clamp(1rem, 3vw, 1.15rem);--fs-2xl:clamp(1.1rem, 3.5vw, 1.4rem);--icon-sm:clamp(28px, 5vw, 38px);--icon-md:clamp(36px, 6vw, 48px);--sidebar-width:clamp(200px, 18vw, 270px);--header-height:clamp(52px, 7vh, 68px);--bottom-bar-h:clamp(54px, 9vh, 68px);--fab-size:clamp(42px, 9vw, 54px);--card-pad:clamp(.6rem, 2vw, 1rem);--content-pad:clamp(.75rem, 3vw, 2rem)}.app-content{padding:var(--content-pad)}.sidebar{width:var(--sidebar-width);padding:var(--sp-4) var(--sp-3)}.app-main{margin-left:var(--sidebar-width)}.header{height:var(--header-height);padding:0 var(--content-pad)}.folder-card,.file-card{padding:var(--card-pad)}.folder-card-icon,.file-card-icon{width:var(--icon-md);height:var(--icon-md);margin-bottom:var(--sp-2)}.folder-card-name,.file-card-name{font-size:var(--fs-sm)}.folder-card-date,.file-card-meta{font-size:var(--fs-xs)}.item-grid{grid-template-columns:repeat(auto-fill,minmax(clamp(130px,18vw,180px),1fr));gap:clamp(6px,1.5vw,14px)}.sidebar-storage{padding:var(--sp-3);background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius-md);flex-shrink:0;min-height:0;margin-top:auto}.sidebar-storage-text{font-size:var(--fs-xs);color:var(--text-secondary);margin-bottom:var(--sp-2)}.sidebar-storage-bar{background:#ffffff14;border-radius:99px;height:5px;overflow:hidden}.sidebar-storage-bar-fill{border-radius:99px;height:100%;transition:width .4s}.sidebar{flex-direction:column;display:flex;overflow:hidden auto}.header-search input{font-size:var(--fs-base)}.breadcrumb-link,.breadcrumb-current{font-size:var(--fs-sm)}.section-title{font-size:var(--fs-xs)}.modal{padding:var(--sp-5)}.modal-title{font-size:var(--fs-xl)}.auth-title{font-size:var(--fs-2xl)}.auth-subtitle{font-size:var(--fs-base)}.sidebar-close-btn{border-radius:var(--radius-sm);width:clamp(26px,5vw,32px);height:clamp(26px,5vw,32px);color:var(--text-secondary);transition:background var(--transition), color var(--transition);flex-shrink:0;place-items:center;margin-left:auto;display:none}.sidebar-close-btn:hover{background:var(--bg-card-hover);color:var(--text-primary)}.mobile-bottom-bar{display:none}.header-hamburger{border-radius:var(--radius-md);width:clamp(32px,6vw,40px);height:clamp(32px,6vw,40px);color:var(--text-secondary);cursor:pointer;transition:background var(--transition), color var(--transition);flex-shrink:0;place-items:center;display:none}.header-hamburger:hover{background:var(--bg-card-hover);color:var(--text-primary)}.sidebar-overlay{display:none}@media (width<=1024px) and (width>=769px){:root{--sidebar-width:clamp(180px, 22vw, 230px);--content-pad:clamp(.75rem, 2.5vw, 1.5rem)}.item-grid{grid-template-columns:repeat(auto-fill,minmax(clamp(120px,16vw,160px),1fr))}}@media (width<=768px){.header-hamburger,.sidebar-close-btn{display:grid}.sidebar-overlay{z-index:199;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0000008c;animation:.2s fadeIn;display:block;position:fixed;inset:0}.sidebar{z-index:200;width:min(80vw,300px);box-shadow:none;padding-bottom:env(safe-area-inset-bottom,1rem);transition:transform .3s cubic-bezier(.4,0,.2,1);transform:translate(-100%)}.sidebar.open{transform:translate(0);box-shadow:8px 0 40px #0009}.sidebar-storage{word-break:break-word;flex-shrink:0;margin-top:auto}.app-main{padding-bottom:var(--bottom-bar-h);margin-left:0!important}.header{height:var(--header-height);gap:clamp(.4rem,2vw,.75rem);padding:0 clamp(.5rem,3vw,1rem)}.header-search{flex:1;min-width:0;max-width:100%}.app-content{padding:clamp(.75rem,3vw,1.25rem);padding-bottom:calc(var(--bottom-bar-h) + clamp(.5rem, 2vw, 1rem));overflow-y:auto}.item-grid{grid-template-columns:repeat(2,1fr);gap:clamp(5px,1.5vw,10px);margin-bottom:clamp(.75rem,2vw,1rem)}.folder-card,.file-card{padding:clamp(.5rem,2.5vw,.85rem)}.folder-card-icon,.file-card-icon{width:clamp(28px,8vw,40px);height:clamp(28px,8vw,40px);margin-bottom:clamp(.4rem,1.5vw,.6rem)}.folder-card-name,.file-card-name{font-size:clamp(.65rem,2.5vw,.8rem)}.folder-card-date,.file-card-meta{margin-top:2px;font-size:clamp(.58rem,2vw,.7rem)}.file-card-actions,.folder-card-actions{opacity:1}.breadcrumb{flex-wrap:wrap;margin-bottom:clamp(.5rem,2vw,.875rem)}.breadcrumb-link,.breadcrumb-current{padding:2px clamp(4px,1vw,8px);font-size:clamp(.68rem,2.2vw,.8rem)}.section-title{font-size:clamp(.62rem,2vw,.75rem)}.file-card-actions,.folder-card-actions{opacity:1;gap:2px;max-width:calc(100% - 8px);top:4px;right:4px}.card-action-btn{border-radius:6px;width:clamp(20px,6vw,26px);height:clamp(20px,6vw,26px)}.card-action-btn svg{width:clamp(10px,3vw,13px);height:clamp(10px,3vw,13px)}.upload-zone{margin-bottom:clamp(.75rem,2vw,1rem);padding:clamp(1.25rem,5vw,2rem) clamp(.75rem,3vw,1.25rem)}.upload-zone-icon{width:clamp(36px,10vw,52px);height:clamp(36px,10vw,52px);margin-bottom:clamp(.5rem,2vw,.75rem)}.upload-zone-title{font-size:clamp(.78rem,2.5vw,.9rem)}.upload-zone-sub{font-size:clamp(.65rem,2vw,.78rem)}.modal-overlay{align-items:flex-end;padding:0}.modal{border-radius:var(--radius-xl) var(--radius-xl) 0 0;width:100%;max-width:100%;max-height:92svh;padding:clamp(1rem,4vw,1.5rem) clamp(.75rem,3vw,1.25rem) clamp(1.5rem,5vw,2rem)}.modal-title{font-size:clamp(.95rem,3vw,1.1rem)}.preview-modal{border-radius:0;width:100vw;max-width:100vw;max-height:100svh}.preview-filename{max-width:45vw;font-size:clamp(.72rem,2.5vw,.85rem)}.preview-image,.preview-video{max-height:60svh}.preview-iframe{height:60svh}.preview-text{height:60svh;font-size:clamp(.7rem,2vw,.82rem)}.toast-container{bottom:calc(var(--bottom-bar-h) + clamp(.4rem, 1.5vw, .75rem));left:clamp(.5rem,2vw,.875rem);right:clamp(.5rem,2vw,.875rem)}.toast{max-width:100%;padding:clamp(.5rem,2vw,.875rem) clamp(.75rem,3vw,1.25rem);font-size:clamp(.72rem,2.2vw,.85rem)}.auth-card{width:100%;padding:clamp(1.25rem, 4vw, 2rem) clamp(1rem, 4vw, 1.5rem) calc(clamp(1.5rem, 5vw, 2rem) + env(safe-area-inset-bottom,0px));border-radius:var(--radius-xl) var(--radius-xl) 0 0;position:fixed;bottom:0;left:0;right:0}.auth-page{align-items:flex-end}.auth-logo{margin-bottom:clamp(1rem,3vw,1.5rem)}.auth-title{font-size:clamp(1.1rem,4vw,1.35rem)}.auth-subtitle{margin-bottom:clamp(1rem,4vw,1.75rem);font-size:clamp(.78rem,2.5vw,.9rem)}.mobile-bottom-bar{height:var(--bottom-bar-h);background:var(--bg-secondary);border-top:1px solid var(--glass-border);z-index:150;padding:0 clamp(2px,1vw,8px);padding-bottom:env(safe-area-inset-bottom,0px);justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0}.mobile-bottom-btn{border-radius:var(--radius-md);height:100%;color:var(--text-muted);cursor:pointer;transition:color var(--transition), background var(--transition);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:clamp(2px,.5vw,4px);min-width:0;padding:0 clamp(2px,.8vw,6px);font-size:clamp(.52rem,1.8vw,.65rem);font-weight:600;display:flex}.mobile-bottom-btn span{text-overflow:ellipsis;white-space:nowrap;max-width:100%;overflow:hidden}.mobile-bottom-btn.active{color:var(--accent-light)}.mobile-bottom-fab{width:var(--fab-size);height:var(--fab-size);background:linear-gradient(135deg, var(--accent), var(--accent-2));color:#fff;box-shadow:0 4px 20px var(--accent-glow);cursor:pointer;transition:transform var(--transition), box-shadow var(--transition);border-radius:50%;flex-shrink:0;place-items:center;margin-bottom:clamp(4px,1.5vw,10px);display:grid}.mobile-bottom-fab:active{transform:scale(.92)}}