@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@400;500;600;700;800&display=swap');
:root{
 --navy:#173f73;--navy2:#0f315c;--blue:#3076c9;--bg:#f3f6fa;--card:#fff;--ink:#1e293b;
 --muted:#718096;--line:#e5eaf0;--green:#24926b;--greenbg:#eaf8f2;--amber:#c97a22;--amberbg:#fff5e8;
 --red:#b54747;--redbg:#fff0f0;--purple:#7257b5;--purplebg:#f4f0ff;--shadow:0 7px 24px rgba(22,40,68,.06)
}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans Thai",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.muted{color:var(--muted)}code{background:#edf2f7;padding:2px 5px;border-radius:5px}
.app{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:100vh}
.sidebar{background:linear-gradient(180deg,var(--navy),var(--navy2));color:#fff;padding:24px 16px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}
.logo{display:flex;gap:11px;align-items:center;padding:0 7px 22px}.logo-mark{width:45px;height:45px;border-radius:14px;background:#fff;color:var(--navy);display:grid;place-items:center;font-weight:800;font-size:17px;box-shadow:0 8px 20px rgba(0,0,0,.12)}
.logo b{display:block;font-size:16px}.logo small{color:#cbd9e9}.menu-label{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#a9bdd6;padding:12px 11px 7px}
.menu{display:grid;gap:5px}.menu a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:11px;color:#e2ecf7;font-weight:600;font-size:14px}.menu a:hover,.menu a.active{background:rgba(255,255,255,.12);color:#fff}.menu .ico{width:24px;text-align:center;opacity:.95}
.userbox{margin-top:auto;border-top:1px solid rgba(255,255,255,.16);padding:16px 8px 0}.userbox b{display:block}.userbox small{color:#cbd9e9}.userbox a{display:inline-block;margin-top:8px;color:#fff;font-size:13px}
.main{min-width:0;padding:28px 30px 40px}.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:20px}.topbar h1{font-size:27px;margin:0}.topbar p{margin:4px 0 0;color:var(--muted)}.top-actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{min-height:42px;border:1px solid var(--line);border-radius:11px;padding:9px 14px;background:#fff;color:var(--ink);font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:7px}.btn:hover{border-color:#bcc9d8}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.navy{background:var(--navy);border-color:var(--navy);color:#fff}.btn.green{background:var(--green);border-color:var(--green);color:#fff}.btn.danger{background:#fff;color:var(--red);border-color:#efcaca}.btn.small{min-height:35px;padding:6px 10px;font-size:12px}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px;margin-bottom:20px}.stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:15px 16px;box-shadow:var(--shadow)}.stat .label{font-size:13px;color:var(--muted)}.stat .value{font-size:27px;font-weight:800;margin-top:5px}.stat.blue .value{color:var(--blue)}.stat.amber .value{color:var(--amber)}.stat.green .value{color:var(--green)}.stat.purple .value{color:var(--purple)}
.panel{background:#fff;border:1px solid var(--line);border-radius:17px;padding:18px;box-shadow:var(--shadow)}.panel h2,.panel h3{margin-top:0}
.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:4px 0 12px}.section-head h2{font-size:18px;margin:0}.section-head p{margin:0;color:var(--muted);font-size:13px}
.room-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.room-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:15px;box-shadow:var(--shadow)}.room-top{display:flex;justify-content:space-between;gap:10px}.room-no{font-size:20px;font-weight:800;color:var(--navy)}.tenant{font-size:13px;color:var(--muted)}.badge{font-size:11px;font-weight:700;padding:5px 8px;border-radius:999px;height:max-content;white-space:nowrap}.badge.unpaid{background:var(--amberbg);color:var(--amber)}.badge.partial{background:var(--purplebg);color:var(--purple)}.badge.paid{background:var(--greenbg);color:var(--green)}.badge.wait{background:#edf4ff;color:var(--blue)}
.room-info{margin:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:7px 0}.info-row{display:flex;justify-content:space-between;gap:12px;padding:4px 0;font-size:13px}.room-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px}.room-actions .wide{grid-column:1/-1}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.field{margin-bottom:12px}label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}input,select,textarea{width:100%;min-height:45px;border:1px solid #cad3df;border-radius:10px;padding:9px 11px;background:#fff;color:var(--ink);font-size:16px}textarea{min-height:90px;resize:vertical}input:focus,select:focus,textarea:focus{outline:3px solid rgba(48,118,201,.12);border-color:var(--blue)}input[readonly]{background:#f7f9fc}
.notice{padding:12px 14px;border-radius:11px;margin-bottom:13px}.notice.success{background:var(--greenbg);color:#126748}.notice.danger{background:var(--redbg);color:#8f3333}.notice.info{background:#edf4ff;color:#285c9b}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:13px}.table{width:100%;border-collapse:collapse;background:#fff;min-width:700px}.table th,.table td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:13px;vertical-align:middle}.table th{font-size:12px;color:var(--muted);background:#fafbfd}
.doc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.doc{border:1px solid var(--line);border-radius:12px;padding:12px;background:#fafbfd}.doc b{display:block;font-size:13px}.doc small{color:var(--muted)}
.login-shell{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(145deg,#edf3fa,#f8fafc)}.login-card{width:min(420px,100%);background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 20px 50px rgba(22,40,68,.10)}.login-mark{width:70px;height:70px;margin:0 auto 14px;border-radius:20px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:22px}.login-card h1{text-align:center;margin:0}.login-card .sub{text-align:center;color:var(--muted);margin:4px 0 22px}
.mobile-head{display:none}
@media(max-width:1050px){.room-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){
 .app{display:block}.sidebar{position:static;height:auto;padding:12px}.logo{padding:2px 4px 12px}.menu-label{display:none}.menu{grid-template-columns:repeat(3,1fr)}.menu a{justify-content:center;text-align:center;background:rgba(255,255,255,.07);padding:9px 6px;font-size:12px}.menu .ico{display:none}.userbox{display:none}
 .main{padding:16px 11px 28px}.topbar{display:block}.topbar h1{font-size:23px}.top-actions{margin-top:11px;display:grid;grid-template-columns:1fr 1fr}.stats{gap:8px}.stat{padding:12px}.stat .value{font-size:22px}.room-grid{grid-template-columns:1fr}.grid2,.grid3{grid-template-columns:1fr}.doc-grid{grid-template-columns:1fr}.btn{min-height:44px}
}
@media(max-width:420px){.menu{grid-template-columns:1fr 1fr}.stats{grid-template-columns:1fr 1fr}.top-actions{grid-template-columns:1fr}}
@media print{.sidebar,.top-actions,.no-print{display:none!important}.app{display:block}.main{padding:0}.panel{box-shadow:none;border:0}}