:root{font-family:Inter,Segoe UI,Arial,sans-serif;color:#172536;background:#f3f6f9}*{box-sizing:border-box}body{margin:0}header{height:64px;background:#13263a;color:white;display:flex;align-items:center;padding:0 24px;gap:28px;position:sticky;top:0;z-index:10}.brand{font-size:20px;font-weight:700;color:white;text-decoration:none;white-space:nowrap}.brand span{font-size:11px;background:#2d78b7;padding:3px 6px;border-radius:10px}nav{display:flex;gap:18px;flex:1}nav a,.user a,.link{color:#dce8f3;text-decoration:none;background:none;border:0;font:inherit}.user{display:flex;align-items:center;gap:12px}.user form{margin:0}main{max-width:1440px;margin:auto;padding:28px}h1{margin:0 0 8px}.lead,.muted,small{color:#657689}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}.card,.panel,.result,.login-card{background:white;border:1px solid #dbe3ea;border-radius:12px;padding:20px;box-shadow:0 2px 8px #152b4010}.card{text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:8px}.card b{font-size:19px}.card span{color:#657689}button,.button{border:1px solid #b8c6d3;background:white;padding:10px 14px;border-radius:8px;cursor:pointer;text-decoration:none;color:#172536}.primary{background:#1769aa;color:white;border-color:#1769aa}input,select{width:100%;padding:10px;border:1px solid #b8c6d3;border-radius:7px;background:white}label{display:grid;gap:6px;font-weight:600}.panel{display:grid;gap:16px;max-width:760px;margin:18px 0}.narrow{max-width:480px}.login-card{max-width:420px;margin:10vh auto}.login-card form{display:grid;gap:16px}.title-row,.filters{display:flex;align-items:end;justify-content:space-between;gap:12px}.title-row form,.filters{display:flex}.task-list{display:grid;gap:8px;margin-top:18px}.task{display:grid;grid-template-columns:48px 1fr;gap:12px;background:white;border:1px solid #dbe3ea;border-radius:9px;padding:10px}.task .check{font-size:22px;padding:0}.task .done{background:#e4f4e8;color:#176b34}.task div{display:grid;gap:5px}.task small{display:block}.table-wrap{overflow:auto;background:white;border:1px solid #dbe3ea;border-radius:10px;margin:16px 0}table{border-collapse:collapse;min-width:100%;white-space:nowrap}th,td{padding:10px 12px;border-bottom:1px solid #e5ebf0;text-align:left;font-size:14px}th{background:#eaf1f7;position:sticky;top:0}tbody tr:nth-child(even){background:#f7fafc}.flash{padding:12px;border-radius:8px;margin-bottom:16px}.flash.error{background:#fde9e8;color:#8d2521}.flash.ok{background:#e5f5e9;color:#226c38}.result{margin-top:18px;line-height:2.4}.result .button{margin-right:8px}@media(max-width:760px){header{height:auto;min-height:60px;padding:12px 14px;flex-wrap:wrap;gap:10px}nav{order:3;width:100%;overflow:auto;padding-bottom:3px}nav a{white-space:nowrap}.user{margin-left:auto}.user a{display:none}main{padding:18px 12px}.cards{grid-template-columns:1fr}.title-row{align-items:stretch;flex-direction:column}.title-row form,.filters{width:100%}.filters{align-items:stretch}.task{grid-template-columns:42px 1fr}.panel{padding:14px}.login-card{margin:6vh auto}h1{font-size:24px}}
.actions,.batch,.form-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.batch{background:#fff;border:1px solid #dbe3ea;border-radius:10px;padding:12px}.batch select{width:auto;min-width:250px}.debt-form{display:grid;grid-template-columns:repeat(3,minmax(180px,1fr));gap:14px;background:#fff;border:1px solid #dbe3ea;border-radius:12px;padding:18px}.debt-form .checkline{display:flex;align-items:center;gap:8px}.debt-form .checkline input,.table-wrap input[type=checkbox]{width:auto}.form-actions{grid-column:1/-1}.history{display:grid;gap:14px;margin-top:18px}.history section,.chartbox{background:#fff;border:1px solid #dbe3ea;border-radius:12px;padding:16px}.chartbox svg{width:100%;min-width:650px}.chartbox{overflow:auto}.axis{stroke:#8193a5;stroke-width:1}.cumline{fill:none;stroke:#1769aa;stroke-width:3}.point{fill:#1769aa;stroke:white;stroke-width:2} @media(max-width:760px){.debt-form{grid-template-columns:1fr}.batch{align-items:stretch;flex-direction:column}.batch select{width:100%}.actions{width:100%}.actions .button{flex:1;text-align:center}}

/* v0.4 responsive navigation and mobile controls */
.topbar .nav-shell{display:flex;align-items:center;gap:24px;flex:1}.topbar .nav-shell nav{display:flex;gap:18px;flex:1}.menu-toggle{display:none;margin-left:auto;width:44px;height:44px;padding:9px;border:1px solid #385066;background:transparent;border-radius:9px}.menu-toggle span{display:block;height:2px;background:#fff;margin:5px 0;border-radius:2px}.title-row .actions .button{display:inline-flex;align-items:center;justify-content:center;min-height:44px}.filters button{min-height:42px}
@media(max-width:760px){
 .topbar{height:64px;min-height:64px;padding:0 14px;flex-wrap:nowrap;gap:8px;position:sticky}.brand{font-size:20px}.menu-toggle{display:block;flex:0 0 44px}
 .topbar .nav-shell{display:none;position:absolute;top:64px;left:0;right:0;background:#13263a;border-top:1px solid #30475d;padding:8px 14px 14px;box-shadow:0 8px 18px #0003;z-index:20}.topbar .nav-shell.open{display:block}
 .topbar .nav-shell nav{display:grid;gap:0;width:100%;padding:0;overflow:visible}.topbar .nav-shell nav a{display:block;padding:13px 8px;border-bottom:1px solid #30475d;font-size:17px}.topbar .user{display:grid;margin:6px 0 0;gap:0}.topbar .user a{display:block;padding:13px 8px;border-bottom:1px solid #30475d}.topbar .user form{width:100%}.topbar .user .link{display:block;width:100%;text-align:left;padding:13px 8px;color:#dce8f3}
 main{padding:18px 14px}h1{font-size:28px}.lead,.muted{line-height:1.45}
 .title-row{gap:14px}.title-row .actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;width:100%}.title-row .actions .button{width:100%;min-width:0;min-height:56px;padding:9px 6px;text-align:center;line-height:1.2}
 .filters{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:8px;width:100%;align-items:stretch}.filters input{grid-column:1/-1}.filters button{width:100%}
 .batch{width:100%;padding:14px;gap:10px}.batch>b{font-size:18px;width:100%}.batch select{width:100%;min-width:0}.batch button{width:100%;min-height:48px;text-align:center}
 .table-wrap{max-width:100%;-webkit-overflow-scrolling:touch}.table-wrap table{min-width:920px}
 input,select,button,.button{font-size:16px}
}
@media(max-width:390px){.title-row .actions{grid-template-columns:1fr}.title-row .actions .button{min-height:48px}.filters{grid-template-columns:1fr}.filters input{grid-column:auto}}
.sort-link{color:#172536;text-decoration:none;display:inline-flex;gap:5px;align-items:center}.sort-link:hover{text-decoration:underline}.user-create{grid-template-columns:2fr 1fr 2fr auto;max-width:none;align-items:end}.inline-user{display:flex;gap:6px;align-items:center}.inline-user input{min-width:180px}@media(max-width:760px){.user-create{grid-template-columns:1fr}.inline-user{flex-direction:column;align-items:stretch}}