*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#f7f9fc;--bg2:#ffffff;--bg3:#ffffff;--border:#e3e8f0;--text:#0f172a;--text2:#5b6878;--text3:#64748b;--accent:#2563eb;--green:#059669;--red:#dc2626;--yellow:#b45309;--radius:12px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:15px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
nav{background:var(--bg2);border-bottom:1px solid var(--border)}
.nav-inner{max-width:960px;margin:0 auto;padding:0 20px;height:54px;display:flex;align-items:center;gap:20px}
.logo{font-weight:700;font-size:18px;color:var(--accent)}
.nav-modes{display:flex;gap:6px}
.mode-btn{background:none;border:1px solid var(--border);color:var(--text2);padding:6px 14px;border-radius:8px;font-size:13px;cursor:pointer;transition:all .15s}
.mode-btn:hover{border-color:var(--accent);color:var(--text)}
.mode-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}
.container{max-width:960px;margin:0 auto;padding:24px 20px}
.main-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}
.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.card-header h2,.card>h2{font-size:16px;font-weight:700;margin-bottom:16px}
.btn-add{background:none;border:1px solid var(--accent);color:var(--accent);padding:6px 12px;border-radius:7px;font-size:13px;cursor:pointer;transition:all .15s}
.btn-add:hover{background:var(--accent);color:#fff}
.btn-print{background:none;border:1px solid var(--border);color:var(--text2);padding:6px 12px;border-radius:7px;font-size:13px;cursor:pointer;transition:all .15s}
.btn-print:hover{border-color:var(--accent);color:var(--text)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--text2);margin-bottom:6px;font-weight:500}
.input-wrap{display:flex;align-items:center;background:var(--bg3);border:1px solid var(--border);border-radius:8px;overflow:hidden;transition:border-color .15s}
.input-wrap:focus-within{border-color:var(--accent)}
.input-wrap input{flex:1;background:none;border:none;color:var(--text);padding:9px 12px;font-size:14px;font-weight:600;outline:none;min-width:0}
.prefix,.suffix{padding:0 10px;color:var(--text3);font-size:14px;flex-shrink:0}
select{width:100%;background:var(--bg3);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:9px 12px;font-size:14px;cursor:pointer}

/* TIP */
.tip-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.tip-presets{display:flex;gap:4px;flex-wrap:wrap}
.tip-btn{background:var(--bg3);border:1px solid var(--border);color:var(--text2);padding:6px 10px;border-radius:6px;font-size:12px;cursor:pointer;transition:all .15s}
.tip-btn:hover{border-color:var(--accent);color:var(--text)}
.tip-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}
.tip-custom-wrap{min-width:80px}

/* PEOPLE */
.people-list{display:flex;flex-direction:column;gap:8px}
.person-row{display:flex;align-items:center;gap:8px}
.person-color{width:12px;height:12px;border-radius:50%;flex-shrink:0}
.person-input{flex:1;background:var(--bg3);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:8px 12px;font-size:14px;outline:none;transition:border-color .15s}
.person-input:focus{border-color:var(--accent)}
.btn-remove-person{background:none;border:none;color:var(--text3);font-size:18px;cursor:pointer;padding:0 4px;line-height:1;transition:color .15s}
.btn-remove-person:hover{color:var(--red)}

/* ITEMS */
.item-list{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}
.item-row{background:var(--bg3);border:1px solid var(--border);border-radius:10px;padding:12px}
.item-top{display:flex;gap:8px;align-items:center;margin-bottom:8px}
.item-name{flex:2;background:var(--bg2);border:1px solid var(--border);border-radius:7px;color:var(--text);padding:7px 10px;font-size:14px;outline:none}
.item-name:focus{border-color:var(--accent)}
.item-price-wrap{display:flex;align-items:center;background:var(--bg2);border:1px solid var(--border);border-radius:7px;overflow:hidden;flex:1}
.item-price-wrap input{background:none;border:none;color:var(--text);padding:7px 8px;font-size:14px;font-weight:600;outline:none;width:100%}
.item-price-sym{padding:0 8px;color:var(--text3);font-size:13px}
.btn-remove-item{background:none;border:none;color:var(--text3);font-size:18px;cursor:pointer;padding:0 4px;transition:color .15s}
.btn-remove-item:hover{color:var(--red)}
.item-assign{display:flex;flex-wrap:wrap;gap:6px}
.assign-chip{padding:4px 10px;border-radius:14px;font-size:12px;cursor:pointer;border:1px solid var(--border);color:var(--text2);background:var(--bg2);transition:all .15s}
.assign-chip:hover{border-color:var(--accent)}
.assign-chip.active{color:#fff;font-weight:600}
.assign-all{background:var(--bg3);border:1px dashed var(--border);color:var(--text3)}
.assign-all:hover{border-color:var(--accent);color:var(--text)}
.assign-all.active{background:var(--accent);border-color:var(--accent);color:#fff}
.itemized-footer{display:grid;grid-template-columns:1fr 1fr;gap:12px}

/* RESULTS */
.results-card h2{margin-bottom:0}
.person-result{background:var(--bg3);border-radius:10px;padding:16px;margin-bottom:10px}
.person-result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.person-result-name{display:flex;align-items:center;gap:8px;font-weight:600}
.person-result-total{font-size:22px;font-weight:700;color:var(--accent)}
.person-result-breakdown{font-size:12px;color:var(--text3);margin-top:4px}
.breakdown-line{display:flex;justify-content:space-between;padding:2px 0}
.person-items{margin-top:8px;padding-top:8px;border-top:1px solid var(--border)}
.item-line{display:flex;justify-content:space-between;font-size:13px;color:var(--text2);padding:2px 0}
.no-people{color:var(--text3);text-align:center;padding:32px;font-size:14px}
.totals-box{border-top:1px solid var(--border);margin-top:4px;padding-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.total-item{background:var(--bg3);border-radius:8px;padding:12px;text-align:center}
.total-item.accent{background:rgba(79,142,247,0.15);border:1px solid rgba(79,142,247,0.3)}
.total-val{font-size:20px;font-weight:700}
.total-lbl{font-size:11px;color:var(--text3);text-transform:uppercase;letter-spacing:.4px;margin-top:3px}

@media(max-width:700px){.main-grid{grid-template-columns:1fr}.tip-presets{gap:3px}}
@media print{nav,.nav-modes,.btn-add,.btn-remove-person,.btn-remove-item,.btn-print,.mode-btn,.tip-presets,.tip-custom-wrap,.field:not(.result-field){display:none}.card{break-inside:avoid}}