:root{--brand: #1cc29f;--brand-dark: #14a385;--accent: #ff652f;--bg: #f5f6f7;--card: #fff;--text: #222;--muted: #777;--border: #e3e5e8;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0}h1{margin:0 0 4px;font-size:1.6rem}h2{margin:0;font-size:1.2rem}h3{margin:8px 0;font-size:1rem}a{color:inherit;text-decoration:none}a:hover{color:var(--brand-dark)}input,select,textarea,button{font:inherit;padding:8px 10px;border:1px solid var(--border);border-radius:6px;background:#fff}input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);border-color:transparent}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--brand);border-color:var(--brand);color:#fff}button.accent{background:var(--accent);border-color:var(--accent);color:#fff}button.danger{color:#c0392b;border-color:#e9b4ae}button.link{border:none;background:none;color:var(--brand-dark);padding:0 4px}button.icon{border:none;background:none;font-size:1.4rem;line-height:1}label{display:flex;flex-direction:column;gap:4px;font-size:.9rem}label.row{flex-direction:row;align-items:center;gap:8px}fieldset{border:1px solid var(--border);border-radius:8px;display:flex;flex-direction:column;gap:8px}legend{font-size:.9rem;padding:0 4px}.layout{display:grid;grid-template-columns:200px 1fr;min-height:100vh}.sidebar{background:#fff;border-right:1px solid var(--border);padding:16px}.sidebar nav{display:flex;flex-direction:column;gap:4px;margin-top:16px}.sidebar nav a{padding:8px 10px;border-radius:6px}.sidebar nav a.active{background:#e8f8f4;color:var(--brand-dark);font-weight:600}.brand{font-weight:800;font-size:1.3rem;color:var(--brand)}.content{padding:24px 32px;max-width:1000px}.stack{display:flex;flex-direction:column;gap:12px}.row{display:flex;align-items:center}.row.gap,.gap{gap:8px}.row.between{justify-content:space-between;gap:8px}.row.end{justify-content:flex-end}.grow{flex:1}.columns{display:grid;grid-template-columns:1fr 1fr;gap:24px}.narrow{max-width:480px}.center{text-align:center}.block{display:block}.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:16px}.summary{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.big{font-size:1.5rem;font-weight:700}.muted{color:var(--muted)}.hint{color:var(--muted);font-size:.8rem}.hint.warn{color:var(--accent)}.pos{color:var(--brand-dark)}.neg{color:var(--accent)}.error{color:#c0392b;margin:0}.empty{padding:12px 0}.badge{font-size:.75rem;background:#eee;padding:2px 6px;border-radius:4px;vertical-align:middle}.balance-list{display:inline-flex;flex-direction:column;align-items:flex-end}.list{list-style:none;margin:0;padding:0;background:#fff;border:1px solid var(--border);border-radius:10px}.list li{padding:12px 14px;border-bottom:1px solid var(--border)}.list li:last-child{border-bottom:none}.list.plain{border:none}.list.plain li{padding:6px 0}.expense-row .date{width:48px;color:var(--muted);font-size:.85rem}.icon-cell{font-size:1.3rem}.tabs{display:flex;gap:4px;flex-wrap:wrap}.tabs button{border-radius:20px;padding:6px 14px}.tabs button.active{background:var(--brand);color:#fff;border-color:var(--brand)}.modal-backdrop{position:fixed;inset:0;background:#00000059;display:flex;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto;z-index:10}.modal{background:#fff;border-radius:12px;width:100%;max-width:560px;padding:20px}.modal header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.participant input.small,input.small{width:100px}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}.auth-card{width:100%;max-width:400px}.auth-card h1{color:var(--brand);margin-bottom:16px}.prefix{padding:8px;background:#f0f0f0;border:1px solid var(--border);border-right:none;border-radius:6px 0 0 6px}.prefix+input{border-radius:0 6px 6px 0;flex:1}.receipt{max-width:100%;max-height:480px;border-radius:8px;margin-top:8px}.comment p{margin:4px 0 0;white-space:pre-wrap}.notes{white-space:pre-wrap}@media(max-width:720px){.layout{grid-template-columns:1fr}.sidebar nav{flex-direction:row;flex-wrap:wrap}.content{padding:16px}.columns,.summary{grid-template-columns:1fr}}