:root{--font-family: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);--surface-card: rgba(30, 41, 59, .75);--surface-card-hover: rgba(30, 41, 59, .95);--surface-card-border: rgba(255, 255, 255, .08);--surface-input: rgba(15, 23, 42, .85);--surface-input-border: rgba(148, 163, 184, .2);--primary: #6366f1;--primary-hover: #4f46e5;--primary-glow: rgba(99, 102, 241, .35);--success: #10b981;--success-glow: rgba(16, 185, 129, .25);--danger: #ef4444;--danger-hover: #dc2626;--danger-glow: rgba(239, 68, 68, .25);--text-main: #f8fafc;--text-muted: #94a3b8;--text-dim: #64748b;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-full: 9999px;--shadow-card: 0 10px 25px -5px rgba(0, 0, 0, .3), 0 8px 10px -6px rgba(0, 0, 0, .3);--shadow-glow: 0 0 20px var(--primary-glow);--transition: all .25s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background:var(--bg-gradient);background-attachment:fixed;color:var(--text-main);min-height:100vh;display:flex;flex-direction:column;line-height:1.5;-webkit-font-smoothing:antialiased}.app-container{max-width:760px;width:100%;margin:0 auto;padding:40px 20px 60px;display:flex;flex-direction:column;gap:28px}.app-header{text-align:center;position:relative;display:flex;flex-direction:column;align-items:center;gap:8px}.brand-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;background:#6366f126;border:1px solid rgba(99,102,241,.3);border-radius:var(--radius-full);color:#a5b4fc;font-size:.8rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.brand-dot{width:8px;height:8px;background:#22c55e;border-radius:50%;box-shadow:0 0 8px #22c55e}.app-title{font-size:2.75rem;font-weight:700;letter-spacing:-.03em;background:linear-gradient(135deg,#fff 30%,#a5b4fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.app-subtitle{color:var(--text-muted);font-size:1.05rem}.stats-ribbon{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.stat-item{background:var(--surface-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--surface-card-border);border-radius:var(--radius-md);padding:14px 18px;display:flex;flex-direction:column;gap:4px;transition:var(--transition)}.stat-item:hover{border-color:#6366f14d;transform:translateY(-2px)}.stat-label{font-size:.78rem;text-transform:uppercase;color:var(--text-dim);font-weight:600;letter-spacing:.04em}.stat-value{font-size:1.4rem;font-weight:700;color:var(--text-main)}.form-card{background:var(--surface-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--surface-card-border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:16px;transition:var(--transition)}.form-card:focus-within{border-color:#6366f166;box-shadow:var(--shadow-card),0 0 25px #6366f126}.input-group{display:flex;flex-direction:column;gap:6px}.input-label{font-size:.85rem;font-weight:600;color:var(--text-muted)}.text-input,.textarea-input{width:100%;background:var(--surface-input);border:1px solid var(--surface-input-border);border-radius:var(--radius-sm);padding:12px 16px;color:var(--text-main);font-family:inherit;font-size:.95rem;transition:var(--transition);outline:none}.text-input:focus,.textarea-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #6366f133}.text-input::placeholder,.textarea-input::placeholder{color:var(--text-dim)}.textarea-input{resize:vertical;min-height:80px}.form-actions{display:flex;justify-content:flex-end;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:var(--radius-sm);font-size:.92rem;font-weight:600;cursor:pointer;border:none;font-family:inherit;transition:var(--transition);text-decoration:none}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px var(--primary-glow)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 18px var(--primary-glow)}.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--surface-card-border)}.btn-ghost:hover:not(:disabled){background:#ffffff0d;color:var(--text-main)}.btn-icon{padding:8px;border-radius:var(--radius-sm);background:transparent;border:1px solid transparent;color:var(--text-dim);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:var(--transition)}.btn-icon:hover{background:#ef444426;color:#f87171;border-color:#ef44444d}.filter-bar{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--surface-card-border);padding-bottom:12px;flex-wrap:wrap;gap:12px}.filter-tabs{display:flex;gap:6px;background:#0f172a99;padding:4px;border-radius:var(--radius-sm);border:1px solid var(--surface-card-border)}.tab-btn{background:transparent;border:none;color:var(--text-muted);padding:6px 14px;font-size:.85rem;font-weight:600;border-radius:6px;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:6px;font-family:inherit}.tab-btn.active{background:var(--primary);color:#fff}.tab-badge{font-size:.72rem;padding:2px 6px;border-radius:var(--radius-full);background:#fff3}.tab-btn:not(.active) .tab-badge{background:#ffffff14}.todo-list{display:flex;flex-direction:column;gap:12px;list-style:none}.todo-item{background:var(--surface-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--surface-card-border);border-radius:var(--radius-md);padding:18px 20px;display:flex;align-items:flex-start;gap:16px;transition:var(--transition);animation:fadeIn .3s ease-out}.todo-item:hover{background:var(--surface-card-hover);border-color:#6366f140;transform:translateY(-2px);box-shadow:0 8px 20px #00000040}.todo-item.completed{opacity:.72}.todo-item.completed:hover{opacity:.9}.checkbox-wrapper{margin-top:2px;position:relative;display:inline-block;cursor:pointer}.custom-checkbox{width:22px;height:22px;border-radius:6px;border:2px solid var(--text-dim);background:#0f172a99;display:flex;align-items:center;justify-content:center;transition:var(--transition);cursor:pointer}.custom-checkbox:hover{border-color:var(--primary)}.checkbox-wrapper input{position:absolute;opacity:0;cursor:pointer;height:0;width:0}.checkbox-wrapper input:checked~.custom-checkbox{background:var(--success);border-color:var(--success);box-shadow:0 0 10px var(--success-glow)}.check-icon{stroke:#fff;stroke-width:3;fill:none;width:14px;height:14px;opacity:0;transform:scale(.6);transition:var(--transition)}.checkbox-wrapper input:checked~.custom-checkbox .check-icon{opacity:1;transform:scale(1)}.todo-content{flex:1;display:flex;flex-direction:column;gap:4px}.todo-title{font-size:1.05rem;font-weight:600;color:var(--text-main);transition:var(--transition);word-break:break-word}.todo-item.completed .todo-title{text-decoration:line-through;color:var(--text-dim)}.todo-description{font-size:.9rem;color:var(--text-muted);line-height:1.4;white-space:pre-wrap;word-break:break-word}.todo-item.completed .todo-description{text-decoration:line-through;color:var(--text-dim)}.todo-meta{display:flex;align-items:center;gap:12px;margin-top:4px;font-size:.75rem;color:var(--text-dim)}.empty-state{background:var(--surface-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px dashed var(--surface-card-border);border-radius:var(--radius-lg);padding:48px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}.empty-icon{width:56px;height:56px;color:#6366f1;background:#6366f11f;border-radius:50%;display:flex;align-items:center;justify-content:center}.empty-title{font-size:1.2rem;font-weight:700;color:var(--text-main)}.empty-text{color:var(--text-muted);font-size:.92rem;max-width:360px}.error-banner{background:#ef44441f;border:1px solid rgba(239,68,68,.35);border-radius:var(--radius-md);padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:#fca5a5;font-size:.92rem}.error-banner-content{display:flex;align-items:center;gap:10px}.retry-btn{background:#ef444433;border:1px solid rgba(239,68,68,.4);color:#fff;padding:4px 12px;font-size:.82rem;border-radius:var(--radius-sm);cursor:pointer;font-family:inherit;transition:var(--transition)}.retry-btn:hover{background:#ef444459}.loading-skeleton{display:flex;flex-direction:column;gap:12px}.skeleton-card{background:var(--surface-card);border:1px solid var(--surface-card-border);border-radius:var(--radius-md);padding:20px;display:flex;gap:16px;align-items:center}.skeleton-circle{width:22px;height:22px;border-radius:6px;background:#ffffff0d;animation:pulse 1.5s infinite}.skeleton-lines{flex:1;display:flex;flex-direction:column;gap:8px}.skeleton-line{height:14px;border-radius:4px;background:#ffffff0d;animation:pulse 1.5s infinite}.skeleton-line.w-75{width:75%}.skeleton-line.w-45{width:45%}@keyframes pulse{0%{opacity:.4}50%{opacity:.8}to{opacity:.4}}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:640px){.app-container{padding:24px 16px 40px}.app-title{font-size:2.2rem}.stats-ribbon{grid-template-columns:1fr}.filter-bar{flex-direction:column;align-items:stretch}.filter-tabs{justify-content:space-around}}