:root{--bg-dark: #0a0a0f;--bg-card: rgba(20, 20, 30, .8);--primary: #8b5cf6;--primary-hover: #7c3aed;--accent: #06b6d4;--glass-border: rgba(255, 255, 255, .08);--text-main: #f8fafc;--text-muted: #94a3b8;--text-dim: #64748b;--success: #10b981;--error: #ef4444;--warning: #f59e0b;--gold: #fbbf24}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg-dark);color:var(--text-main);min-height:100vh;background:radial-gradient(ellipse at 20% 0%,rgba(139,92,246,.15) 0%,transparent 50%),radial-gradient(ellipse at 80% 0%,rgba(6,182,212,.1) 0%,transparent 50%),radial-gradient(ellipse at 50% 100%,rgba(139,92,246,.1) 0%,transparent 50%),var(--bg-dark)}.app-wrapper{min-height:100vh;display:flex;flex-direction:column}.loading-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}.spinner-large{width:48px;height:48px;border:4px solid rgba(139,92,246,.2);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}.app-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 2rem;background:#0a0a0fe6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:.75rem}.logo-icon{font-size:1.5rem}.logo-text{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.header-nav{display:flex;align-items:center;gap:.5rem}.nav-btn{background:transparent;border:none;color:var(--text-muted);padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-size:.9rem;text-decoration:none;transition:all .2s}.nav-btn:hover{color:var(--text-main);background:#ffffff0d}.nav-dropdown{position:relative}.dropdown-menu{position:absolute;top:100%;left:0;background:var(--bg-card);border:1px solid var(--glass-border);border-radius:12px;padding:.5rem;min-width:180px;margin-top:.5rem;box-shadow:0 20px 40px #0006}.dropdown-menu a{display:block;padding:.75rem 1rem;color:var(--text-muted);text-decoration:none;border-radius:8px;transition:all .2s}.dropdown-menu a:hover{background:#8b5cf61a;color:var(--text-main)}.header-right{display:flex;align-items:center}.user-panel{display:flex;align-items:center;gap:1rem}.avatar-wrapper{position:relative;width:44px;height:44px;border-radius:50%;padding:2px;background:var(--glass-border)}.avatar-wrapper.premium{background:linear-gradient(135deg,var(--gold),#f97316)}.user-avatar{width:100%;height:100%;border-radius:50%;object-fit:cover}.crown-badge{position:absolute;bottom:-2px;right:-2px;font-size:.9rem;filter:drop-shadow(0 2px 4px rgba(0,0,0,.3))}.user-details{display:flex;flex-direction:column;gap:.1rem}.user-name{font-weight:600;font-size:.95rem}.user-stats{font-size:.75rem;color:var(--text-dim)}.btn-logout{background:#ffffff0d;border:1px solid var(--glass-border);color:var(--text-muted);padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-size:.85rem;transition:all .2s}.btn-logout:hover{background:#ef44441a;border-color:var(--error);color:var(--error)}.btn-google{display:flex;align-items:center;gap:.75rem;background:#fff;color:#333;border:none;padding:.65rem 1.25rem;border-radius:8px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s}.btn-google:hover{box-shadow:0 4px 12px #0000004d;transform:translateY(-1px)}.main-content{flex:1;display:flex;flex-direction:column;align-items:center;padding:3rem 2rem}.hero-section{text-align:center;margin-bottom:2rem}.hero-title{font-size:3rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem}.hero-subtitle{color:var(--text-muted);font-size:1.1rem}.upload-card{width:100%;max-width:540px;background:var(--bg-card);border:1px solid var(--glass-border);border-radius:20px;padding:2rem;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.drop-zone{border:2px dashed var(--glass-border);border-radius:16px;padding:3rem 2rem;text-align:center;cursor:pointer;position:relative;transition:all .3s;background:#8b5cf605}.drop-zone:hover{border-color:var(--primary);background:#8b5cf60d}.drop-zone input{position:absolute;inset:0;opacity:0;cursor:pointer}.drop-icon{font-size:3rem;margin-bottom:1rem}.drop-title{font-size:1.1rem;font-weight:500;margin-bottom:.5rem}.drop-hint{font-size:.85rem;color:var(--text-dim)}.file-list{margin-top:1.5rem;background:#0003;border-radius:12px;padding:1rem}.file-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem;font-size:.85rem;color:var(--text-muted)}.clear-all{background:none;border:none;color:var(--error);cursor:pointer;font-size:.8rem}.file-item{display:flex;align-items:center;gap:.75rem;padding:.6rem .75rem;background:#ffffff08;border-radius:8px;margin-bottom:.5rem}.file-name{flex:1;font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-size{font-size:.75rem;color:var(--text-dim)}.remove-btn{background:none;border:none;color:var(--text-dim);cursor:pointer;padding:.25rem;font-size:.8rem}.remove-btn:hover{color:var(--error)}.error-box{margin-top:1rem;padding:.75rem 1rem;background:#ef44441a;border:1px solid rgba(239,68,68,.2);border-radius:10px;color:var(--error);font-size:.9rem}.btn-primary{width:100%;margin-top:1.5rem;padding:1rem;background:linear-gradient(135deg,var(--primary),var(--primary-hover));border:none;border-radius:12px;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:.5rem}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 30px #8b5cf64d}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.app-footer{padding:1.5rem;text-align:center;color:var(--text-dim);font-size:.85rem;border-top:1px solid var(--glass-border)}.app-footer a,.app-footer button{color:var(--text-muted);text-decoration:none;background:none;border:none;cursor:pointer}.app-footer a:hover,.app-footer button:hover{color:var(--primary)}.modal-overlay{position:fixed;inset:0;background:#000c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-box{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:20px;padding:2rem;max-width:420px;width:100%;position:relative}.modal-close{position:absolute;top:1rem;right:1rem;background:none;border:none;color:var(--text-dim);font-size:1.25rem;cursor:pointer}.modal-box h2{margin-bottom:1rem;font-size:1.5rem}.modal-box p{color:var(--text-muted);margin-bottom:.5rem}.contact-card{display:flex;align-items:center;justify-content:space-between;background:#8b5cf61a;padding:.75rem 1rem;border-radius:10px;margin:1rem 0}.contact-card span{color:var(--primary);font-weight:500}.contact-card button{background:var(--primary);border:none;color:#fff;padding:.4rem .75rem;border-radius:6px;cursor:pointer;font-size:.8rem}.faq{margin-top:1.5rem}.faq h3{font-size:1rem;margin-bottom:.75rem;color:var(--text-muted)}.faq details{background:#0003;border-radius:8px;margin-bottom:.5rem}.faq summary{padding:.75rem 1rem;cursor:pointer;font-size:.9rem}.faq details p{padding:0 1rem 1rem;font-size:.85rem}.limit-modal h2{color:var(--warning)}@media(max-width:768px){.app-header{flex-wrap:wrap;gap:1rem;padding:1rem}.header-nav{order:3;width:100%;justify-content:center}.hero-title{font-size:2rem}.upload-card{padding:1.5rem}.user-details{display:none}}