:root{--primary:#0b7a55;--dark:#092d25;--bg:#f4f7f6;--card:#fff;--text:#17352e;--muted:#6b7d78;--danger:#d9534f;--warning:#e09b24;--border:#dfe8e4}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
header{height:70px;background:linear-gradient(135deg,#063d2d,#0b7a55);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:10}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:21px}.logo{width:44px;height:44px;border-radius:10px;background:#fff;color:var(--primary);display:grid;place-items:center;font-weight:900}
.menu{display:flex;gap:8px;flex-wrap:wrap}.menu button{border:0;background:transparent;color:#fff;padding:10px 12px;border-radius:8px;cursor:pointer}.menu button:hover,.menu button.active{background:#ffffff20}
main{padding:22px;max-width:1500px;margin:auto}.page{display:none}.page.active{display:block}.title{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}
h1,h2,h3{margin:0 0 8px}.muted{color:var(--muted);font-size:13px}
.cards{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:18px}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:17px;box-shadow:0 4px 15px #0b3b2b0b}.card .num{font-size:25px;font-weight:800;margin-top:8px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.panel{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px;margin-bottom:18px}
button,.btn{background:var(--primary);color:#fff;border:0;padding:10px 14px;border-radius:8px;cursor:pointer;font-weight:600}.btn.secondary{background:#536864}.btn.danger{background:var(--danger)}.btn.warning{background:var(--warning)}.btn.light{background:#e8f1ee;color:var(--dark)}button:disabled{opacity:.5;cursor:not-allowed}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.toolbar input,.toolbar select{min-width:180px}
input,select,textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text)}label{font-size:12px;font-weight:700;margin-bottom:5px;display:block}.formgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.formgrid .full{grid-column:1/-1}
.tablewrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:900px}th,td{padding:10px;border-bottom:1px solid var(--border);text-align:left;font-size:13px}th{background:#edf5f2;color:#31564d;position:sticky;top:0}.actions{display:flex;gap:5px;flex-wrap:wrap}.actions button{padding:6px 8px;font-size:11px}
.badge{padding:5px 8px;border-radius:20px;font-size:11px;font-weight:700}.paid{background:#dff6e9;color:#14723f}.partial{background:#fff0ce;color:#8a5a00}.pending{background:#ffe2e1;color:#a42d29}.open{background:#ffe2e1;color:#a42d29}.closed{background:#dff6e9;color:#14723f}
.modal{display:none;position:fixed;inset:0;background:#0008;z-index:50;align-items:center;justify-content:center;padding:18px}.modal.show{display:flex}.modalbox{background:#fff;border-radius:15px;max-width:850px;width:100%;max-height:92vh;overflow:auto;padding:20px}.close{float:right;background:#eee;color:#333}
.notice{padding:12px;border-radius:9px;background:#eef8f4;margin-bottom:12px;font-size:13px}
@media(max-width:1100px){.cards{grid-template-columns:repeat(3,1fr)}}@media(max-width:750px){header{height:auto;gap:10px;align-items:flex-start;flex-direction:column}.menu{padding-bottom:10px}.cards,.formgrid,.grid2{grid-template-columns:1fr}.card .num{font-size:22px}main{padding:12px}}