*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f0f2f5;--card:#fff;--primary:#2563eb;--primary-hover:#1d4ed8;--green:#16a34a;--green-light:#dcfce7;--green-dark:#15803d;--red:#dc2626;--red-light:#fee2e2;--red-dark:#b91c1c;--amber:#d97706;--amber-light:#fef3c7;--text:#111827;--text-muted:#6b7280;--border:#e5e7eb;--shadow:0 1px 3px #0000001a, 0 1px 2px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--radius:12px}body{background:var(--bg);color:var(--text);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5}#root{min-height:100vh}button{cursor:pointer;border:none;font-family:inherit;transition:all .15s}input,textarea,select{outline:none;font-family:inherit;font-size:1rem}input:focus,textarea:focus,select:focus{box-shadow:0 0 0 3px #2563eb1a;border-color:var(--primary)!important}.app-header{border-bottom:1px solid var(--border);height:64px;box-shadow:var(--shadow);z-index:100;background:#fff;justify-content:space-between;align-items:center;padding:0 32px;display:flex;position:sticky;top:0}.app-header h1{color:var(--primary);letter-spacing:-.02em;font-size:1.25rem;font-weight:700}.app-nav{gap:4px;display:flex}.nav-btn{color:var(--text-muted);background:0 0;border-radius:8px;padding:8px 20px;font-size:.95rem;font-weight:500}.nav-btn:hover{background:var(--bg);color:var(--text)}.nav-btn.active{background:var(--primary);color:#fff}.app-body{width:100%;max-width:1200px;margin:0 auto;padding:32px 24px}.tracker-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.tracker-header h2{color:var(--text);font-size:1.5rem;font-weight:700}.projects-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px;display:grid}.project-card{background:var(--card);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);flex-direction:column;gap:16px;padding:24px;transition:box-shadow .2s;display:flex}.project-card:hover{box-shadow:var(--shadow-lg)}.project-card.running{border-color:var(--green);border-width:2px}.card-header{justify-content:space-between;align-items:center;display:flex}.project-name{color:var(--text);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:1.1rem;font-weight:600;overflow:hidden}.delete-btn{color:var(--text-muted);background:0 0;border-radius:6px;padding:4px 8px;font-size:1.1rem}.delete-btn:hover{background:var(--red-light);color:var(--red)}.timer-section{flex-direction:column;align-items:center;gap:12px;display:flex}.timer-display{text-align:center}.timer-elapsed{font-variant-numeric:tabular-nums;letter-spacing:-.03em;color:var(--text);font-size:2.5rem;font-weight:700;line-height:1}.timer-elapsed.running{color:var(--green)}.timer-billed{color:var(--text-muted);margin-top:4px;font-size:.85rem;font-weight:500}.timer-billed span{color:var(--primary);font-weight:700}.timer-btn{border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;font-size:1.5rem;display:flex;box-shadow:0 4px 12px #00000026}.timer-btn.start{background:var(--green);color:#fff}.timer-btn.start:hover{background:var(--green-dark);transform:scale(1.05)}.timer-btn.stop{background:var(--red);color:#fff}.timer-btn.stop:hover{background:var(--red-dark);transform:scale(1.05)}.warning-banner{background:var(--amber-light);border:1px solid var(--amber);color:#92400e;border-radius:8px;align-items:center;gap:8px;padding:10px 14px;font-size:.85rem;display:flex}.warning-banner .warn-icon{font-size:1rem}.last-session{border-top:1px solid var(--border);padding-top:12px}.last-session-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:6px;font-size:.75rem;font-weight:600}.last-session-info{color:var(--text);flex-direction:column;gap:2px;font-size:.875rem;display:flex}.session-time{justify-content:space-between;align-items:center;display:flex}.session-duration{color:var(--primary);font-weight:600}.session-desc{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;margin-top:4px;font-size:.8125rem;font-style:italic;overflow:hidden}.add-desc-btn{color:var(--primary);background:0 0;margin-top:2px;padding:2px 0;font-size:.8125rem;text-decoration:underline}.add-desc-btn:hover{color:var(--primary-hover)}.add-project-card{background:var(--card);border-radius:var(--radius);border:2px dashed var(--border);flex-direction:column;justify-content:center;align-items:center;gap:12px;min-width:0;min-height:200px;padding:24px;transition:border-color .2s;display:flex;overflow:hidden}.add-project-card:hover{border-color:var(--primary)}.add-project-form{gap:8px;width:100%;display:flex}.add-project-input{border:1px solid var(--border);border-radius:8px;flex:1;min-width:0;padding:10px 14px;font-size:.95rem;transition:border-color .15s,box-shadow .15s}.add-project-submit{background:var(--primary);color:#fff;white-space:nowrap;border-radius:8px;padding:10px 18px;font-size:.95rem;font-weight:600}.add-project-submit:hover{background:var(--primary-hover)}.add-project-placeholder{color:var(--text-muted);flex-direction:column;align-items:center;gap:8px;display:flex}.plus-icon{background:var(--bg);border:2px dashed var(--border);width:48px;height:48px;color:var(--text-muted);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;font-size:1.5rem;transition:all .2s;display:flex}.plus-icon:hover{border-color:var(--primary);color:var(--primary)}.project-count{color:var(--text-muted);font-size:.8125rem}.modal-overlay{z-index:1000;background:#00000080;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{background:var(--card);border-radius:var(--radius);width:100%;max-width:480px;box-shadow:var(--shadow-lg);padding:28px}.modal h3{margin-bottom:4px;font-size:1.15rem;font-weight:700}.modal-session-info{color:var(--text-muted);margin-bottom:20px;font-size:.875rem}.modal-textarea{border:1px solid var(--border);resize:vertical;border-radius:8px;width:100%;min-height:100px;padding:12px;font-size:.95rem;transition:border-color .15s,box-shadow .15s}.modal-actions{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px 18px;font-size:.95rem;font-weight:500}.btn-secondary:hover{background:var(--border)}.btn-primary{background:var(--primary);color:#fff;border-radius:8px;padding:10px 18px;font-size:.95rem;font-weight:600}.btn-primary:hover{background:var(--primary-hover)}.report-controls{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:24px;display:flex}.period-btn{background:var(--card);color:var(--text-muted);border:1px solid var(--border);border-radius:8px;padding:8px 16px;font-size:.9rem;font-weight:500}.period-btn:hover{border-color:var(--primary);color:var(--primary)}.period-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.date-range-inputs{align-items:center;gap:8px;display:flex}.date-input{border:1px solid var(--border);background:var(--card);border-radius:8px;padding:8px 12px;font-size:.875rem;transition:border-color .15s,box-shadow .15s}.report-table{background:var(--card);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);overflow:hidden}.report-header-row{background:var(--bg);border-bottom:1px solid var(--border);text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);grid-template-columns:1fr 120px 120px 60px;padding:12px 20px;font-size:.75rem;font-weight:600;display:grid}.report-project-row{border-bottom:1px solid var(--border)}.report-project-row:last-child{border-bottom:none}.report-project-summary{cursor:pointer;grid-template-columns:1fr 120px 120px 60px;align-items:center;padding:16px 20px;transition:background .1s;display:grid}.report-project-summary:hover{background:var(--bg)}.report-project-name{font-size:.95rem;font-weight:600}.report-hours{color:var(--text);font-size:.95rem}.report-billed{color:var(--primary);font-size:.95rem;font-weight:700}.expand-btn{color:var(--text-muted);background:0 0;border-radius:6px;justify-self:center;padding:4px 8px;font-size:1rem}.expand-btn:hover{background:var(--bg);color:var(--text)}.report-entries{border-top:1px solid var(--border);background:#f9fafb}.report-entry{border-bottom:1px solid var(--border);grid-template-columns:160px 160px 1fr;align-items:start;gap:12px;padding:12px 28px;font-size:.875rem;display:grid}.report-entry:last-child{border-bottom:none}.entry-time{color:var(--text-muted)}.entry-duration{color:var(--text);font-weight:600}.entry-desc{color:var(--text)}.entry-desc-empty{color:var(--text-muted);font-style:italic}.report-empty{text-align:center;color:var(--text-muted);padding:60px 24px;font-size:1rem}.report-total-row{border-top:2px solid var(--border);color:var(--primary);background:#eff6ff;grid-template-columns:1fr 120px 120px 60px;padding:14px 20px;font-size:.95rem;font-weight:700;display:grid}.error-msg{color:var(--red);padding:4px 0;font-size:.875rem}.loading{text-align:center;color:var(--text-muted);padding:40px}