/* Oxford Modern SMS — web app styles. Mirrors the desktop app's look. */
:root{
  --navy:#15246b; --navy-2:#0e1633; --navy-3:#1d2f86;
  --red:#e8112d; --red-2:#b30016;
  --ink:#1b2030; --muted:#6b7390;
  --bg:#eef1f8; --card:#ffffff; --line:#e1e6f1; --line-2:#eceffa;
  --ok:#127a3e; --ok-bg:#e7f6ed; --warn:#b8860b;
  --radius:14px; --shadow:0 6px 20px rgba(20,30,80,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg);font-size:14px}
a{color:var(--navy-3);text-decoration:none}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#c7cee0;border-radius:8px}

/* ---------- login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(1200px 600px at 70% -10%,#26368f 0%,var(--navy-2) 60%)}
.login-card{width:400px;max-width:94vw;background:var(--card);border-radius:18px;padding:30px 30px;box-shadow:0 24px 60px rgba(0,0,0,.35);text-align:center}
.login-card img{width:74px;height:74px;object-fit:contain}
.login-card h1{font-size:17px;margin:8px 0 2px;color:var(--navy)}
.login-card .sub{color:var(--muted);font-size:12.5px;margin-bottom:14px}
.branch-tabs{display:flex;gap:6px;background:#eef1fb;padding:5px;border-radius:12px;margin-bottom:16px}
.branch-tabs button{flex:1;border:none;background:transparent;padding:9px 6px;border-radius:9px;font-weight:700;color:var(--navy);cursor:pointer;font-size:12.5px}
.branch-tabs button.active{background:var(--navy);color:#fff;box-shadow:0 3px 10px rgba(21,36,107,.3)}
.field{text-align:left;margin-bottom:12px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.field input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;outline:none;background:#fbfcff;font-size:14px}
.field input:focus{border-color:var(--navy-3);box-shadow:0 0 0 3px rgba(29,47,134,.12)}
.err{color:var(--red-2);font-size:12.5px;min-height:16px;margin:2px 0 8px}

/* ---------- buttons ---------- */
.btn{border:none;border-radius:10px;padding:10px 16px;font-weight:700;font-size:14px;background:var(--navy);color:#fff;cursor:pointer;transition:.15s}
.btn:hover{background:var(--navy-3)}
.btn.block{width:100%;padding:12px}
.btn.red{background:var(--red)} .btn.red:hover{background:var(--red-2)}
.btn.ghost{background:#eef1fb;color:var(--navy)} .btn.ghost:hover{background:#e2e8fb}
.btn.danger{background:#fdecee;color:var(--red-2)} .btn.danger:hover{background:#fbdce0}
.btn.sm{padding:6px 11px;font-size:12.5px;border-radius:8px}
.btn:disabled{opacity:.55;cursor:not-allowed}

/* ---------- shell ---------- */
.shell{display:grid;grid-template-columns:238px 1fr;grid-template-rows:56px 1fr;min-height:100vh}
.topbar{grid-column:1/3;display:flex;align-items:center;gap:12px;padding:0 18px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.topbar .brand{display:flex;align-items:center;gap:10px}
.topbar .brand img{width:32px;height:32px;object-fit:contain}
.topbar .brand b{color:var(--navy);font-size:15px}
.topbar .branchpill{background:#eef1fb;color:var(--navy);font-weight:700;font-size:12px;padding:5px 11px;border-radius:20px}
.topbar .spacer{flex:1}
.topbar .who{font-size:12.5px;color:var(--muted);text-align:right;line-height:1.2}
.topbar .who b{color:var(--ink);display:block}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}

.sidebar{background:var(--navy-2);padding:14px 12px;overflow:auto}
.nav-group{color:#8ea0d8;font-size:10.5px;text-transform:uppercase;letter-spacing:1px;margin:14px 8px 6px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:#c9d3f2;font-weight:600;font-size:13.5px;margin-bottom:2px}
.nav-item:hover{background:#1a2a73;color:#fff}
.nav-item.active{background:linear-gradient(90deg,var(--navy-3),#2a3da0);color:#fff;box-shadow:inset 3px 0 0 var(--red)}
.nav-item .ic{width:20px;text-align:center}

.main{padding:22px 26px;overflow:auto}
.page-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.page-head h2{margin:0;font-size:21px;color:var(--navy)}
.page-head .desc{color:var(--muted);font-size:13px}
.page-head .spacer{flex:1}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.card h3{margin:0 0 14px;font-size:15px;color:var(--navy)}
.grid{display:grid;gap:16px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:18px}
.stat{padding:18px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow)}
.stat .label{color:var(--muted);font-size:12.5px}
.stat .value{font-size:26px;font-weight:800;color:var(--navy);margin-top:6px}
.stat .value.red{color:var(--red-2)} .stat .value.green{color:var(--ok)}

table.tbl{width:100%;border-collapse:collapse;background:var(--card)}
table.tbl th{background:#f3f5fc;color:#48506b;text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;padding:11px 12px;border-bottom:1px solid var(--line)}
table.tbl td{padding:10px 12px;border-bottom:1px solid var(--line-2);font-size:13px}
table.tbl tr:hover td{background:#fafbff}
table.tbl td.r,table.tbl th.r{text-align:right}
table.tbl td.c,table.tbl th.c{text-align:center}
.tag{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:700}
.tag.paid{background:var(--ok-bg);color:var(--ok)}
.tag.void{background:#f1f1f4;color:#888;text-decoration:line-through}
.tag.due{background:#fdeaec;color:var(--red-2)}

.lbl{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.lbl .req{color:var(--red)}
.inp{width:100%;padding:10px 11px;border:1px solid var(--line);border-radius:9px;outline:none;background:#fbfcff;font-size:14px}
.inp:focus{border-color:var(--navy-3);box-shadow:0 0 0 3px rgba(29,47,134,.1)}
select.inp{cursor:pointer}
.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.toolbar{display:flex;gap:10px;margin-bottom:14px;align-items:center;flex-wrap:wrap}
.search{max-width:340px}
.muted{color:var(--muted)}
.kv{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px dashed var(--line);font-size:13px}
.note{background:#eef1fb;border-left:3px solid var(--navy-3);padding:10px 12px;border-radius:8px;font-size:12.5px;color:#33406e}
.flash{padding:11px 14px;border-radius:10px;margin-bottom:16px;font-size:13.5px;font-weight:600}
.flash.ok{background:var(--ok-bg);color:var(--ok)}
.flash.err{background:#fdeaec;color:var(--red-2)}

/* fee collection */
.fc-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:16px}
.month-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-top:8px}
.month-cell{border:1px solid var(--line);border-radius:8px;padding:8px 4px;text-align:center;font-size:12px;cursor:pointer;user-select:none;background:#fbfcff}
.month-cell.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.month-cell.paid{background:var(--ok-bg);color:var(--ok);border-color:#bfe6cd;cursor:not-allowed;font-weight:700}
.amt{text-align:right}
.pill-toggle{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink);background:#eef1fb;padding:6px 10px;border-radius:20px}

@media (max-width:900px){
  .shell{grid-template-columns:1fr}
  .sidebar{display:none}
  .topbar{grid-column:1}
  .fc-grid,.formgrid{grid-template-columns:1fr}
}
.modal-bg{position:fixed;inset:0;background:rgba(14,22,51,.5);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal{background:#fff;border-radius:16px;max-width:900px;width:100%;max-height:90vh;overflow:auto;box-shadow:0 30px 80px rgba(0,0,0,.4)}
.modal .mhead{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal .mhead h3{margin:0;color:var(--navy)}
.modal .mbody{padding:20px}
.modal .mfoot{padding:14px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px}
.preview{width:100%;height:64vh;border:1px solid var(--line);border-radius:10px;background:#fff}