*{box-sizing:border-box;margin:0;padding:0}
body{min-height:100vh;font-family:'Segoe UI',system-ui,sans-serif;color:#e0e0e0;background:#0d1117;overflow-x:hidden;transition:background .4s}
canvas#bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}
.container{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;min-height:100vh;padding:1.5rem}
.card{width:100%;max-width:480px;background:rgba(255,255,255,.05);backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.08);border-radius:24px;padding:2rem;box-shadow:0 16px 48px rgba(0,0,0,.5);animation:cardIn .6s cubic-bezier(.22,1,.36,1);overflow:hidden}
@keyframes cardIn{from{opacity:0;transform:translateY(32px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.card-header h1{font-size:1.4rem;font-weight:700;color:#fff}
.greeting{font-size:.85rem;color:var(--accent-light);margin-bottom:1.25rem}

.login-icon{width:64px;height:64px;margin:0 auto 1.25rem;display:flex;align-items:center;justify-content:center;border-radius:18px;background:linear-gradient(135deg,rgba(var(--accent-rgb),.3),rgba(var(--accent2-rgb),.3));color:var(--accent-light)}
.login-card{width:100%;max-width:400px;background:rgba(255,255,255,.05);backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.08);border-radius:24px;padding:2.5rem 2rem 2rem;box-shadow:0 16px 48px rgba(0,0,0,.5);animation:cardIn .6s cubic-bezier(.22,1,.36,1)}
.login-card h1{text-align:center;font-size:1.4rem;font-weight:700;color:#fff;margin-bottom:.25rem}
.subtitle{text-align:center;font-size:.85rem;color:#a0a0b0;margin-bottom:1.75rem}
.login-container{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:1.5rem}

.input-group{position:relative;margin-bottom:1rem}
.input-group .input-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#888;pointer-events:none}
.input-group input{width:100%;padding:.85rem 2.8rem;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.08);color:#fff;font-size:.95rem;outline:none;transition:border-color .25s,box-shadow .25s}
.input-group input:focus{border-color:rgba(var(--accent-rgb),.6);background:rgba(var(--accent-rgb),.1);box-shadow:0 0 0 3px rgba(var(--accent-rgb),.15)}
.input-group input::placeholder{color:rgba(255,255,255,.4)}
.toggle-pass{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;color:#888;padding:8px;border-radius:8px;display:flex;align-items:center;justify-content:center;z-index:3}
.toggle-pass:hover{color:#fff;background:rgba(255,255,255,.1)}

.btn-primary{width:100%;padding:.85rem;margin-top:.5rem;border:none;border-radius:12px;font-size:.95rem;font-weight:600;cursor:pointer;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;display:flex;align-items:center;justify-content:center;gap:8px;transition:transform .15s,box-shadow .25s}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 24px rgba(var(--accent-rgb),.4)}
.btn-primary:active{transform:scale(.97)}

.btn-secondary{width:100%;padding:.7rem;margin-top:1rem;border:1px solid rgba(255,255,255,.1);border-radius:12px;background:rgba(255,255,255,.04);color:var(--accent-light);font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none;text-align:center}
.btn-secondary:hover{background:rgba(var(--accent-rgb),.1)}

.btn-icon{width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:#ccc;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}
.btn-icon:hover{background:rgba(248,113,113,.15);color:#f87171}

.error{margin-top:.75rem;min-height:1.3em;text-align:center;font-size:.88rem;color:#f87171}
.login-divider{display:flex;align-items:center;gap:.75rem;margin:1.25rem 0;color:#555;font-size:.78rem}
.login-divider::before,.login-divider::after{content:'';flex:1;height:1px;background:rgba(255,255,255,.08)}
.btn-register{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.75rem;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.04);color:var(--accent-light);font-size:.9rem;font-weight:600;text-decoration:none;transition:all .2s}
.btn-register:hover{background:rgba(var(--accent-rgb),.1);border-color:rgba(var(--accent-rgb),.3)}
.login-footer{margin-top:1.25rem;font-size:.85rem;color:#7a7c8a;text-align:center}
.link-register{color:var(--accent-light);text-decoration:none;font-weight:600;margin-left:.3rem}
.link-register:hover{color:var(--accent2)}
.footer{margin-top:1.25rem;font-size:.78rem;color:#555;z-index:1}

.theme-picker{display:flex;gap:.5rem;padding:.6rem .8rem;margin-bottom:1rem;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);border-radius:14px;justify-content:center;flex-wrap:wrap}
.theme-swatch{width:34px;height:34px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:all .2s;box-shadow:0 2px 8px rgba(0,0,0,.3)}
.theme-swatch:hover{transform:scale(1.2)}
.theme-swatch.active{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.25),0 2px 12px rgba(0,0,0,.4);transform:scale(1.15)}

.add-form{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1rem;align-items:stretch}
.add-form input{flex:1 1 120px;min-width:0;padding:.7rem 1rem;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.06);color:#fff;font-size:.9rem;outline:none}
.add-form input:focus{border-color:rgba(var(--accent-rgb),.5);box-shadow:0 0 0 3px rgba(var(--accent-rgb),.12)}
.add-form input::placeholder{color:rgba(255,255,255,.4)}
.add-form .btn-primary{flex:0 0 auto;padding:.7rem 1rem;margin-top:0}

.filters{display:flex;gap:.4rem;margin-bottom:.75rem}
.filter-btn{padding:.4rem .85rem;border-radius:999px;border:1px solid rgba(255,255,255,.1);background:transparent;color:#aaa;font-size:.78rem;font-weight:600;cursor:pointer;transition:all .2s}
.filter-btn:hover{color:#ddd;border-color:rgba(255,255,255,.2)}
.filter-btn.active{background:rgba(var(--accent-rgb),.2);color:var(--accent-light);border-color:rgba(var(--accent-rgb),.3)}

.notes-list{max-height:40vh;overflow-y:auto;display:flex;flex-direction:column;gap:.5rem;padding-right:4px;margin-bottom:.75rem}
.notes-list::-webkit-scrollbar{width:4px}
.notes-list::-webkit-scrollbar-thumb{background:rgba(255,255,255,.1);border-radius:4px}
.empty,.empty-state{text-align:center;padding:2rem 1rem;color:rgba(255,255,255,.3)}
.note-item{display:flex;align-items:center;gap:.65rem;padding:.75rem .85rem;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);border-radius:14px;transition:all .2s}
.note-item:hover{background:rgba(255,255,255,.08)}
.note-item.done{opacity:.45}
.note-item.done .note-text{text-decoration:line-through;color:#888}
.note-check{width:22px;height:22px;min-width:22px;border-radius:7px;border:2px solid rgba(255,255,255,.2);background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;color:transparent}
.note-check:hover{border-color:var(--accent)}
.note-item.done .note-check{background:var(--accent);border-color:var(--accent);color:#fff}
.note-text{flex:1;font-size:.9rem;line-height:1.5;color:#e0e0e0;word-break:break-word}
.note-delete{width:28px;height:28px;border-radius:8px;border:none;background:transparent;color:#888;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}
.note-delete:hover{background:rgba(248,113,113,.15);color:#f87171}
.counter{font-size:.78rem;color:rgba(255,255,255,.4);text-align:center;margin-top:.5rem}

.users-list{display:flex;flex-direction:column;gap:.5rem;margin:1rem 0}
.user-item{display:flex;align-items:center;justify-content:space-between;padding:.7rem .85rem;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);border-radius:14px;transition:all .2s;cursor:pointer}
.user-item:hover{background:rgba(255,255,255,.08)}
.user-name{font-size:.9rem;font-weight:600;color:#e0e0e0}
.user-notes{margin-top:.75rem}
.user-note{padding:.5rem .7rem;background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.04);border-radius:10px;font-size:.85rem;color:#d0d0d0;margin-bottom:.3rem;display:flex;align-items:center;justify-content:space-between}
.user-note-text{flex:1}
.btn-danger{padding:.3rem .6rem;border:none;border-radius:6px;background:rgba(248,113,113,.15);color:#f87171;font-size:.72rem;cursor:pointer;transition:background .2s}
.btn-danger:hover{background:rgba(248,113,113,.3)}
.user-item.active{border-color:var(--accent);background:rgba(var(--accent-rgb),.1)}