:root{--bg: #f1f5f9;--surface: #ffffff;--surface-2: #f8fafc;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--primary: #2563eb;--primary-dark: #1d4ed8;--success: #16a34a;--danger: #dc2626;--warning: #d97706;--radius: 14px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:16px}.app-shell{display:flex;flex-direction:column;min-height:100%;max-width:560px;margin:0 auto}.app-main{flex:1;padding:16px 16px calc(84px + env(safe-area-inset-bottom))}h1{font-size:22px;margin:4px 0 16px}h2{font-size:17px;margin:22px 0 10px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;background:var(--surface);border-top:1px solid var(--border);padding:8px 0 calc(8px + env(safe-area-inset-bottom));max-width:560px;margin:0 auto;z-index:50}.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;text-decoration:none;color:var(--muted);font-size:11px;flex:1;padding:2px 0}.bottom-nav a.active{color:var(--primary);font-weight:600}.nav-icon{font-size:20px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);margin-bottom:14px}label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin:12px 0 6px}input,select,textarea{width:100%;padding:12px 14px;font-size:16px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text);font-family:inherit}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb26}textarea{resize:vertical;min-height:70px}button{cursor:pointer;font-family:inherit;border:none;border-radius:10px;font-size:16px;font-weight:600;padding:13px 16px;transition:background .15s,opacity .15s}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;width:100%}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}.btn-danger{background:transparent;color:var(--danger);border:1px solid var(--border)}.btn-ghost{background:transparent;color:var(--primary);padding:8px}.chip-row{display:flex;flex-wrap:wrap;gap:8px}.chip{flex:1;min-width:64px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:12px 8px;font-size:15px;text-align:center;color:var(--text)}.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}.timer-display{font-size:44px;font-weight:700;text-align:center;font-variant-numeric:tabular-nums;letter-spacing:1px;margin:8px 0}.row{display:flex;gap:10px}.row>*{flex:1}.entry{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;padding:12px 0;border-bottom:1px solid var(--border)}.entry:last-child{border-bottom:none}.entry-main{flex:1;min-width:0}.entry-title{font-weight:600;font-size:15px}.entry-sub{font-size:13px;color:var(--muted);margin-top:2px}.entry-meta{text-align:right;white-space:nowrap}.entry-dur{font-weight:700}.entry-amount{font-size:13px;color:var(--muted)}.badge{display:inline-block;font-size:11px;font-weight:600;padding:2px 8px;border-radius:999px}.badge-billed{background:#dcfce7;color:var(--success)}.badge-open{background:#dbeafe;color:var(--primary)}.badge-nonbill{background:#f1f5f9;color:var(--muted)}.muted{color:var(--muted);font-size:14px}.banner{padding:11px 14px;border-radius:10px;font-size:14px;margin-bottom:14px}.banner-error{background:#fee2e2;color:var(--danger)}.banner-success{background:#dcfce7;color:var(--success)}.banner-info{background:#dbeafe;color:var(--primary-dark)}.banner-warn{background:#fef3c7;color:var(--warning)}.total-bar{display:flex;justify-content:space-between;font-size:18px;font-weight:700;padding:14px 0 4px;border-top:2px solid var(--border);margin-top:8px}.center-screen{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:24px;max-width:420px;margin:0 auto}.brand{text-align:center;margin-bottom:24px}.brand h1{font-size:28px;margin:8px 0 4px}.list-head{display:flex;justify-content:space-between;align-items:center}.spinner{text-align:center;color:var(--muted);padding:24px}.pos{padding:12px 0;border-bottom:1px solid var(--border)}.pos-desc{font-size:13px;color:var(--muted);white-space:pre-line;margin-top:4px}.inline-actions{display:flex;gap:8px;margin-top:8px}.inline-actions button{flex:1;font-size:14px;padding:9px}small.hint{display:block;color:var(--muted);font-size:12px;margin-top:4px;font-weight:400}