:root{--navy:#15163d;--purple:#6246d9;--purple2:#7c63e7;--bg:#f6f7fb;--text:#20213b;--muted:#7b7d91}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Noto Sans Thai",system-ui,-apple-system,sans-serif}.app-shell{display:flex;min-height:100vh}.sidebar{width:245px;background:linear-gradient(180deg,#15163d,#252052);color:#fff;position:fixed;inset:0 auto 0 0;padding:24px 15px;display:flex;flex-direction:column}.brand{display:flex;gap:11px;align-items:center;padding:0 10px 30px}.brand b{display:block;font-size:20px;letter-spacing:.5px}.brand small{display:block;opacity:.55;font-size:9px;letter-spacing:2px}.brand-icon{width:40px;height:40px;border-radius:12px;background:#6a4de0;display:grid;place-items:center;font-size:21px}.sidebar nav a,.sidebar-bottom a{display:flex;align-items:center;gap:12px;color:#d9d8ec;text-decoration:none;padding:12px 14px;border-radius:10px;margin:4px 0;font-size:14px}.sidebar nav a:hover,.sidebar nav a:first-child{background:#6549d6;color:#fff}.sidebar-bottom{margin-top:auto}.main{margin-left:245px;width:calc(100% - 245px);padding:0 30px 40px}.topbar{height:76px;display:flex;align-items:center;justify-content:space-between}.muted{color:var(--muted);font-size:13px}.top-actions{display:flex;gap:10px;align-items:center}.icon-btn{width:38px;height:38px;background:#fff;border:1px solid #e9e9f0;border-radius:11px;display:grid;place-items:center;color:#65677b;text-decoration:none}.user-chip{display:flex;gap:9px;align-items:center;background:#fff;border:1px solid #e9e9f0;padding:5px 11px 5px 6px;border-radius:12px}.user-chip b{font-size:12px;display:block}.user-chip small{color:var(--muted);font-size:10px}.avatar{width:30px;height:30px;border-radius:50%;background:#e9e4ff;color:#5a3fd0;display:grid;place-items:center;font-weight:700}.page-title{font-size:28px;font-weight:750;margin:10px 0 4px}.page-subtitle{color:var(--muted);margin-bottom:22px}.stat-card,.panel,.book-card{background:#fff;border:1px solid #ededf3;border-radius:16px;box-shadow:0 4px 20px rgba(30,25,80,.04)}.stat-card{padding:18px}.stat-label{font-size:12px;color:var(--muted)}.stat-value{font-size:26px;font-weight:800;margin:7px 0}.trend{font-size:11px}.up{color:#17a673}.down{color:#e04d59}.stat-icon{width:40px;height:40px;border-radius:11px;background:#eeeaff;color:#6146d7;display:grid;place-items:center;float:right}.panel{padding:20px}.panel-title{font-weight:700;margin-bottom:16px}.table{margin-bottom:0}.table th{font-size:11px;color:#85879a;font-weight:600;border-bottom:1px solid #eee}.table td{font-size:13px;vertical-align:middle;padding:13px 8px}.badge-soft{background:#edeaff;color:#5d45ce;padding:5px 9px;border-radius:999px;font-size:10px}.badge-green{background:#e3f8ef;color:#16845f}.badge-orange{background:#fff1dd;color:#b66b11}.btn-primary{background:#6246d9;border-color:#6246d9}.btn-primary:hover{background:#5036c4;border-color:#5036c4}.form-control,.form-select{border-radius:10px;border-color:#e3e3eb;padding:10px 12px}.cover{width:56px;height:76px;object-fit:cover;border-radius:8px;background:#eee}.book-card{padding:14px}.book-card .cover{width:100%;height:180px;margin-bottom:12px}.book-title{font-weight:700;font-size:14px}.book-author{font-size:11px;color:var(--muted)}.login-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#f7f5ff,#eef4ff)}.login-card{width:min(430px,92vw);background:#fff;padding:34px;border-radius:24px;box-shadow:0 20px 60px rgba(50,35,120,.12)}.login-logo{display:flex;justify-content:center;margin-bottom:18px}.empty{padding:45px;text-align:center;color:var(--muted)}@media(max-width:900px){.sidebar{width:72px;padding:18px 8px}.brand div:not(.brand-icon),.sidebar a{font-size:0}.sidebar a i{font-size:18px}.brand{padding-left:8px}.main{margin-left:72px;width:calc(100% - 72px);padding:0 15px}.topbar{height:65px}.user-chip div:not(.avatar){display:none}}