:root{
  --green:#1b7a43;--green-deep:#0f5a31;--green-darker:#0a3f23;
  --ink:#12211a;--ink-2:#3c4b43;--grey:#7b8681;
  --paper:#f4f7f4;--paper-2:#e9efe9;--white:#fff;--line:#e2e8e3;--line-2:#d5ded7;
  --ok:#1a7a43;--err:#b3261e;--warn:#8a6d1a;
  --shadow:0 10px 30px -18px rgba(10,63,34,.35);
  --font:'Aptos','Segoe UI',system-ui,-apple-system,Roboto,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--green-deep);text-decoration:none}
a:hover{text-decoration:underline}
img{display:block;max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:26px 20px 60px}
h1{font-size:1.7rem;font-weight:800;letter-spacing:-.02em}
h2{font-size:1.25rem;font-weight:800}
.muted{color:var(--ink-2)} .small{font-size:.88rem} .right{text-align:right}

/* topbar */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 20px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:46px;height:46px;border-radius:50%;box-shadow:0 0 0 1px var(--line)}
.brand b{display:block;color:var(--green-deep);font-weight:800;font-size:.98rem;line-height:1.1}
.brand small{color:var(--grey);font-weight:600}
.topnav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.topnav a{padding:8px 12px;border-radius:9px;font-weight:600;color:var(--ink-2)}
.topnav a:hover{background:var(--paper);color:var(--green-deep);text-decoration:none}
.topnav .who{color:var(--grey);font-weight:700;font-size:.86rem;margin-left:6px}
.topnav .out{background:var(--green-deep);color:#fff}
.topnav .out:hover{background:var(--green-darker);color:#fff}

/* cards / grid */
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow)}
.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:1fr 1fr}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.stat b{display:block;font-size:1.9rem;font-weight:800;color:var(--green-deep)}
.stat span{color:var(--ink-2);font-weight:600;font-size:.9rem}
.section-title{margin:6px 0 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:inherit;font-weight:700;border-radius:11px;padding:11px 20px;font-size:.94rem;cursor:pointer;border:1.5px solid transparent;transition:.18s}
.btn-primary{background:var(--green);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{background:var(--green-deep);text-decoration:none}
.btn-ghost{background:var(--paper);color:var(--green-deep);border-color:var(--line-2)}
.btn-ghost:hover{background:var(--paper-2);text-decoration:none}
.btn-lg{padding:14px 26px;font-size:1rem}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-block{display:flex;justify-content:center;width:100%}

/* forms */
.form label{display:block;font-size:.84rem;font-weight:700;color:var(--ink-2);margin:12px 0 6px}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line-2);border-radius:11px;font-family:inherit;font-size:.95rem;background:var(--paper)}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(27,122,67,.14);background:#fff}
.form .btn{margin-top:18px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* auth */
.auth{min-height:64vh;display:grid;place-items:center}
.auth-card{width:100%;max-width:420px}

/* flash */
.flash{padding:12px 15px;border-radius:11px;font-weight:600;margin:8px 0 16px;font-size:.92rem}
.flash.ok{background:#e7f4ec;color:#0f5a31;border:1px solid #bfe2cd}
.flash.err{background:#fdecea;color:#8a1c16;border:1px solid #f5c6c2}
.flash.warn{background:#fdf6e3;color:#7a5f12;border:1px solid #efe0af}

/* table */
.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.table th,.table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);font-size:.92rem}
.table th{background:var(--paper);font-weight:800;color:var(--ink-2);font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}
.table tr:last-child td{border-bottom:none}
.table tr:hover td{background:#fafcfa}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.74rem;font-weight:800}
.badge.paid{background:#e7f4ec;color:#0f5a31}
.badge.unpaid{background:#fdf1e3;color:#8a5a12}
.badge.reg{background:#e7f4ec;color:#0f5a31}
.badge.noreg{background:#eef1ef;color:#67716b}
.searchbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.searchbar input{flex:1;min-width:200px;padding:11px 14px;border:1.5px solid var(--line-2);border-radius:11px;font-family:inherit}

.foot{text-align:center;color:var(--grey);font-size:.84rem;padding:24px}
.feehead{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--line)}
.feehead:last-child{border-bottom:none}
.feetotal{display:flex;justify-content:space-between;padding:14px 0 0;font-weight:800;font-size:1.2rem;color:var(--green-deep)}
code{background:var(--paper-2);padding:2px 6px;border-radius:6px;font-size:.86em}

@media(max-width:820px){.g3,.g4,.g2{grid-template-columns:1fr 1fr}.frow{grid-template-columns:1fr}}
@media(max-width:560px){.g3,.g4,.g2{grid-template-columns:1fr}.table{display:block;overflow-x:auto;white-space:nowrap}}
.badge.pending{background:#fff3d6;color:#8a5a00}