:root{--ink:#14161a;--ink2:#1e2228;--green:#18a890;--lime:#48a848;--orange:#f09018;--red:#d81818;--blue:#2f5597;
--bg:#f3f5f7;--card:#fff;--text:#1b1f24;--muted:#6b7280;--line:#e6e9ee;--shadow:0 1px 2px rgba(16,24,40,.05),0 6px 20px rgba(16,24,40,.06);--radius:16px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14.5px;line-height:1.5}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{margin:0;line-height:1.25}h1{font-size:24px;letter-spacing:-.3px}h2{font-size:16px}h3{font-size:14px}
.ic{flex:none;vertical-align:-3px}
.app{display:flex;min-height:100vh}
.sidebar{width:248px;background:var(--ink);color:#c9cfd8;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;padding:16px 12px;z-index:40;overflow-y:auto}
.brand{display:block;background:#fff;border-radius:14px;padding:10px 12px;margin-bottom:18px}.brand img{display:block;width:100%;height:auto}
.sidebar nav{display:flex;flex-direction:column;gap:3px;flex:1}
.sidebar nav a{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:12px;color:#c9cfd8;font-weight:500;text-decoration:none;transition:.15s}
.sidebar nav a:hover{background:#242a32;color:#fff}
.sidebar nav a.active{background:linear-gradient(135deg,var(--green),var(--lime));color:#fff;box-shadow:0 6px 16px rgba(24,168,144,.35)}
.nav-sep{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:#6c7684;margin:18px 14px 6px}
.pill{margin-left:auto;background:var(--orange);color:#fff;border-radius:99px;font-style:normal;font-size:11px;padding:1px 8px;font-weight:700}
.side-foot{font-size:12px;color:#8a93a0;padding:14px 8px 4px;border-top:1px solid #2a3038;margin-top:12px}.side-foot small{color:#6c7684}
.scrim{display:none}
.main{margin-left:248px;flex:1;min-width:0}
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:14px;padding:12px 28px;background:rgba(243,245,247,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.search{flex:1;max-width:460px;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 12px;color:var(--muted)}
.search input{border:0;outline:0;background:none;padding:10px 0;width:100%;font:inherit;color:var(--text)}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.who{display:flex;align-items:center;gap:10px}.who-t{display:flex;flex-direction:column;line-height:1.2}.who-t small{color:var(--muted)}
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--red));color:#fff;display:grid;place-items:center;font-weight:700}
.icon-btn{background:none;border:0;color:var(--muted);cursor:pointer;padding:6px;border-radius:8px;display:inline-grid;place-items:center}.icon-btn:hover{background:#e9edf1;color:var(--text)}
.mobile-only{display:none}
.content{padding:26px 28px 60px;max-width:1500px}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:20px;flex-wrap:wrap}.page-head p{margin:4px 0 0;color:var(--muted)}
.head-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;border:1px solid #eef0f3}
.card.flush{padding:0;overflow:hidden}.card-h{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}.card-h small{color:var(--muted)}
.card.empty{text-align:center;padding:50px;color:var(--muted)}
.grid{display:grid;gap:18px}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-21{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}.g-12{grid-template-columns:minmax(0,1fr) minmax(0,2fr)}
.mt{margin-top:18px}
.kpi{display:flex;gap:14px;align-items:center;position:relative;overflow:hidden}
.kpi:after{content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;background:var(--c,#18a890);opacity:.08}
.kpi .chip{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;color:#fff;background:var(--c,#18a890);flex:none;box-shadow:0 8px 18px -6px var(--c,#18a890)}
.kpi small{color:var(--muted);font-weight:500;display:block}.kpi b{font-size:24px;letter-spacing:-.5px;display:block;line-height:1.2}.kpi span.sub{font-size:12px;color:var(--muted)}
.kpi.g{--c:#18a890}.kpi.o{--c:#f09018}.kpi.r{--c:#d81818}.kpi.b{--c:#2f5597}.kpi.l{--c:#48a848}.kpi.k{--c:#1e2228}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;color:var(--text);padding:10px 16px;border-radius:11px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;transition:.15s;white-space:nowrap}
.btn:hover{background:#f6f8fa;text-decoration:none}.btn.sm{padding:7px 12px;font-size:13px;border-radius:10px}
.btn.primary{background:linear-gradient(135deg,var(--green),var(--lime));border-color:transparent;color:#fff;box-shadow:0 6px 16px -4px rgba(24,168,144,.5)}.btn.primary:hover{filter:brightness(1.05)}
.btn.wa{background:#25d366;border-color:transparent;color:#fff}.btn.wa:hover{background:#1fbd5a}
.btn.dark{background:var(--ink);color:#fff;border-color:var(--ink)}.btn.danger{color:var(--red);border-color:#f5c6c6}.btn.danger:hover{background:#fdeeee}
.btn.orange{background:var(--orange);color:#fff;border-color:transparent}
label{display:block;font-weight:600;font-size:13px;margin-bottom:5px;color:#39414b}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid #d9dee5;border-radius:10px;font:inherit;background:#fff;color:var(--text)}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--green);box-shadow:0 0 0 3px rgba(24,168,144,.15)}
textarea{min-height:80px;resize:vertical}
.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}.form-grid .wide{grid-column:1/-1}
.hint{color:var(--muted);font-size:12.5px;margin-top:4px}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th{font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);text-align:left;padding:12px 14px;background:#f8fafb;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:12px 14px;border-bottom:1px solid #f0f2f5;vertical-align:middle}
tbody tr:hover{background:#fafcfc}tr:last-child td{border-bottom:0}
.r{text-align:right}.c{text-align:center}.nowrap{white-space:nowrap}.muted{color:var(--muted)}.small{font-size:12.5px}
tfoot td{font-weight:700;background:#f8fafb;border-top:2px solid var(--line)}
.badge{display:inline-block;padding:3px 10px;border-radius:99px;font-size:12px;font-weight:600;white-space:nowrap}
.badge.green{background:#e3f6ef;color:#0b7d5f}.badge.red{background:#fde8e8;color:#b42318}.badge.amber{background:#fff1dc;color:#b25e00}.badge.blue{background:#e7eefb;color:#2f5597}.badge.gray{background:#eef0f3;color:#4b5563}
.alert{padding:12px 16px;border-radius:12px;margin-bottom:16px;font-weight:500}.alert.ok{background:#e3f6ef;color:#0b7d5f}.alert.err{background:#fde8e8;color:#b42318}.alert.warn{background:#fff1dc;color:#b25e00}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px}.tabs a{padding:8px 16px;border-radius:99px;background:#fff;border:1px solid var(--line);color:var(--text);font-weight:600;font-size:13px;text-decoration:none}.tabs a.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.filters{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;margin-bottom:16px}.filters>div{min-width:150px}
.chart{width:100%;height:auto;display:block}.chart .grid{stroke:var(--line);stroke-width:1}.chart .ax{fill:#8a93a0;font-size:11px}
.legend{display:flex;gap:16px;flex-wrap:wrap;margin-top:8px;font-size:12.5px;color:var(--muted)}.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px}
.donut-wrap{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.donut{width:160px;height:160px;flex:none}.dc-t{font-size:17px;font-weight:700;fill:var(--text)}.dc-s{font-size:9px;fill:#8a93a0}
.legend-col{list-style:none;margin:0;padding:0;flex:1;min-width:170px}.legend-col li{display:flex;align-items:center;gap:8px;padding:5px 0;font-size:13px}.legend-col i{width:10px;height:10px;border-radius:3px}.legend-col span{flex:1}.legend-col small{color:var(--muted);width:34px;text-align:right}
.ring{display:flex;flex-direction:column;align-items:center;gap:4px}.ring svg{width:150px}.ring-t{font-size:26px;font-weight:800;fill:var(--text)}.ring span{color:var(--muted);font-size:13px}
.hbars{display:flex;flex-direction:column;gap:10px}.hb{display:grid;grid-template-columns:120px 1fr auto;gap:10px;align-items:center;font-size:13px}.hb-l{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hb-bar{background:#eef1f4;height:10px;border-radius:99px;overflow:hidden}.hb-bar i{display:block;height:100%;border-radius:99px}
.insight{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid #f0f2f5}.insight:last-child{border:0}.insight .dot{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#fff;flex:none}
.matrix td,.matrix th{padding:9px 8px;text-align:center}.matrix td:first-child,.matrix th:first-child{text-align:left;position:sticky;left:0;background:#fff;z-index:1}.matrix th:first-child{background:#f8fafb}
.cell{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;font-size:12px;font-weight:700}.cell.paid{background:#e3f6ef;color:#0b7d5f}.cell.part{background:#fff1dc;color:#b25e00}.cell.due{background:#fde8e8;color:#b42318}.cell.future{background:#eef0f3;color:#8a93a0}.cell.na{color:#c5cad2}
/* collect page */
.month-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:12px}
.mchip{position:relative;border:2px solid var(--line);border-radius:14px;padding:12px 14px;cursor:pointer;background:#fff;transition:.15s;display:block;margin:0}
.mchip input{position:absolute;opacity:0;pointer-events:none}.mchip b{display:block;font-size:15px}.mchip small{color:var(--muted);display:block}.mchip em{font-style:normal;font-weight:700;display:block;margin-top:4px}
.mchip:hover{border-color:#b8e5dc}.mchip.sel{border-color:var(--green);background:#effaf7;box-shadow:0 6px 16px -8px rgba(24,168,144,.6)}
.mchip.overdue{border-color:#f5c0c0}.mchip.overdue.sel{border-color:var(--green)}
.mchip.paid{background:#f4f6f8;cursor:default;opacity:.75}.mchip.paid b:after{content:" ✓";color:var(--green)}
.total-bar{position:sticky;bottom:12px;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--ink);color:#fff;padding:14px 20px;border-radius:16px;box-shadow:0 14px 30px -10px rgba(0,0,0,.5)}
.total-bar b{font-size:24px}.total-bar small{color:#9aa3af;display:block}
.stu-pick{display:grid;grid-template-columns:1fr;gap:6px}
/* login */
.login{min-height:100vh;display:grid;grid-template-columns:1.1fr 1fr}
.login-l{background:linear-gradient(150deg,#14161a 0%,#1e2a2c 60%,#0f4a42 100%);color:#fff;padding:60px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.login-l:before,.login-l:after{content:"";position:absolute;border-radius:50%;opacity:.5}.login-l:before{width:380px;height:380px;background:var(--green);right:-120px;top:-100px;opacity:.18}.login-l:after{width:260px;height:260px;background:var(--orange);left:-80px;bottom:-60px;opacity:.15}
.login-l h2{font-size:34px;margin:24px 0 10px;max-width:430px;position:relative}.login-l p{max-width:430px;color:#b9c3c9;position:relative}
.login-l ul{padding-left:18px;color:#d5dde2;position:relative;line-height:2}
.login-r{display:grid;place-items:center;padding:30px;background:#fff}.login-box{width:min(400px,100%)}.login-box .logo{width:230px;margin-bottom:24px}
/* receipt */
.receipt-wrap{max-width:820px;margin:0 auto}
.receipt{background:#fff;border:1px solid #d7dce2;border-radius:14px;overflow:hidden;position:relative}
.rc-top{height:8px;background:linear-gradient(90deg,var(--green),var(--lime),var(--orange),var(--red))}
.rc-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 28px;border-bottom:2px solid var(--ink)}
.rc-head img{height:62px;width:auto}.rc-head .ri{text-align:right;font-size:12.5px;color:#444;line-height:1.5}
.rc-title{display:flex;justify-content:space-between;align-items:center;padding:14px 28px;background:#f6f8f9}
.rc-title h2{font-size:20px;letter-spacing:.14em;text-transform:uppercase}.rc-title div{text-align:right;font-size:13px}
.rc-body{padding:22px 28px}.rc-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 30px;margin-bottom:18px}
.rc-grid div small{display:block;color:#707782;font-size:11.5px;text-transform:uppercase;letter-spacing:.07em}.rc-grid div b{font-size:15px}
.rc-amount{display:flex;justify-content:space-between;align-items:center;gap:16px;border:2px solid var(--ink);border-radius:12px;padding:14px 18px;margin:16px 0}
.rc-amount .big{font-size:30px;font-weight:800;letter-spacing:-.5px}.rc-amount .w{font-size:12.5px;color:#555;max-width:380px}
.rc-status{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.rc-box{border-radius:12px;padding:12px 16px}.rc-box.ok{background:#e9f7f2;border:1px solid #bfe6d9}.rc-box.bal{background:#fff5e6;border:1px solid #f5d9a8}.rc-box.clear{background:#e9f7f2;border:1px solid #bfe6d9}
.rc-box small{display:block;font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:#5b6470}.rc-box b{font-size:18px}
.rc-foot{display:flex;justify-content:space-between;align-items:flex-end;padding:22px 28px 26px;gap:20px}.rc-foot .note{font-size:11.5px;color:#666;max-width:430px}.sig{text-align:center;min-width:190px}.sig .line{border-top:1px solid #333;padding-top:6px;margin-top:46px;font-size:12.5px}
.stamp-cancel{position:absolute;top:40%;left:50%;transform:translate(-50%,-50%) rotate(-18deg);font-size:80px;font-weight:900;color:rgba(216,24,24,.16);border:10px solid rgba(216,24,24,.16);padding:0 28px;border-radius:16px;pointer-events:none}
.stamp-paid{position:absolute;right:30px;top:130px;transform:rotate(-12deg);border:4px solid rgba(24,168,144,.55);color:rgba(24,168,144,.7);font-weight:900;font-size:26px;letter-spacing:.2em;padding:2px 14px;border-radius:8px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 20px;border-radius:12px;z-index:99;box-shadow:0 10px 30px rgba(0,0,0,.3)}
@media(max-width:1100px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g-21,.g-12,.g3{grid-template-columns:1fr}}
@media(max-width:860px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:none}.scrim.open{display:block;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:35}
.main{margin-left:0}.mobile-only{display:inline-grid}.topbar{padding:10px 14px}.content{padding:18px 14px 50px}.who-t{display:none}.top-actions .btn span{display:none}.g2,.g4{grid-template-columns:1fr}.login{grid-template-columns:1fr}.login-l{display:none}.rc-grid,.rc-status{grid-template-columns:1fr}.rc-head,.rc-title,.rc-foot{flex-direction:column;align-items:flex-start}.rc-head .ri,.rc-title div{text-align:left}.hb{grid-template-columns:90px 1fr auto}}
@media(max-width:560px){.g4{grid-template-columns:1fr}.kpi b{font-size:21px}}
@media print{
 @page{size:A4;margin:10mm}
 body{background:#fff;font-size:12px}.sidebar,.topbar,.no-print,.scrim,.page-head .head-actions,.alert,.filters,.tabs{display:none!important}
 .main{margin:0}.content{padding:0;max-width:none}.card{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
 .receipt{border:1px solid #999;border-radius:0;break-inside:avoid}.receipt-wrap{max-width:none}
 *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
 table{font-size:11px}th,td{padding:6px 8px}tr{break-inside:avoid}thead{display:table-header-group}
 .print-only{display:block!important}
}
.print-only{display:none}
.pub{background:#eef1f4;min-height:100vh;padding:24px 14px}