*{box-sizing:border-box}
:root{
  --navy:#11243d;--blue:#1769ff;--teal:#00a88f;--purple:#7b3ff2;--orange:#ff7a00;
  --green:#159447;--red:#d92d20;--yellow:#f2b400;--bg:#f4f7fb;--line:#dce4ef;
  --text:#172234;--muted:#657286;--white:#fff
}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
.layout{display:flex;min-height:100vh}
.sidebar{width:255px;background:#172554;color:#fff;position:fixed;left:0;top:0;bottom:0;padding:22px 15px;overflow:auto}
  .brand{font-size:19px;font-weight:900;line-height:1.2;padding:8px 10px 22px;border-bottom:1px solid #33447a}
  .brand span{display:block;color:#67e8f9;font-size:11px;margin-top:6px;letter-spacing:1px}
  .nav-title{font-size:10px;font-weight:800;color:#93a4d1;margin:20px 10px 8px;letter-spacing:1.2px}
  .nav a{display:flex;align-items:center;gap:10px;padding:11px 12px;margin:3px 0;border-radius:9px;color:#dbe5ff;text-decoration:none;font-size:13px;font-weight:650}
  .nav a:hover{background:#263a7a;color:#fff}
  .nav a.active{background:#7c3aed;color:#fff}
  .icon{width:25px;height:25px;display:grid;place-items:center;border-radius:7px;background:#33447a;font-size:13px}
  .active .icon{background:#5b21b6}
  .main{margin-left:255px;width:calc(100% - 255px)}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:17px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;position:sticky;top:0;z-index:10}
.page-title{font-size:23px;font-weight:800}.page-sub{font-size:12px;color:var(--muted);margin-top:4px}
.admin-chip{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:700}.avatar{width:36px;height:36px;background:var(--purple);color:#fff;border-radius:50%;display:grid;place-items:center}
.content{padding:24px 28px 40px}
.settings-layout{display:grid;grid-template-columns:220px 1fr;gap:16px}
.nav-panel,.panel{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.settings-nav{padding:10px}
.settings-nav button{width:100%;text-align:left;background:#fff;border:0;border-radius:8px;padding:12px;font-size:12px;font-weight:800;color:#526072;cursor:pointer;margin:2px 0}
.settings-nav button:hover{background:#f3f6fa}.settings-nav button.active{background:#eaf1ff;color:#1556c8}
.nav-icon{display:inline-block;width:22px}
.panel-head{padding:17px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}
.panel-title{font-size:15px;font-weight:850}.panel-sub{font-size:11px;color:var(--muted);margin-top:4px}
.settings-section{display:none}.settings-section.active{display:block}
.form-body{padding:18px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field.full{grid-column:1/-1}
label{display:block;font-size:11px;font-weight:850;color:#596779;margin-bottom:6px}
.text,.select,textarea{width:100%;border:1px solid #cfd9e6;border-radius:8px;background:#fff;color:var(--text);font:inherit;font-size:13px}
.text,.select{height:42px;padding:0 12px}textarea{padding:11px 12px;min-height:100px;resize:vertical}
.helper{font-size:10px;color:#748193;margin-top:5px;line-height:1.5}
.toggle-row{display:flex;align-items:center;justify-content:space-between;gap:14px;border:1px solid #e4e9f0;border-radius:9px;padding:13px 14px;margin:10px 0}
.toggle-copy{min-width:0}.toggle-name{font-size:12px;font-weight:850}.toggle-desc{font-size:10px;color:#6b788a;line-height:1.5;margin-top:4px}
.switch{width:44px;height:24px;position:relative;display:inline-block;flex:0 0 44px}.switch input{display:none}
.slider{position:absolute;inset:0;background:#cbd4df;border-radius:30px;cursor:pointer}.slider:before{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.15s}
.switch input:checked+.slider{background:var(--green)}.switch input:checked+.slider:before{transform:translateX(20px)}
.color-row{display:flex;gap:10px;align-items:center}.color-box{width:46px;height:40px;border:1px solid #cfd9e6;border-radius:7px;overflow:hidden;padding:0}.color-box input{width:100%;height:100%;border:0;padding:0;background:none}
.button-row{display:flex;justify-content:flex-end;gap:9px;padding:14px 18px;border-top:1px solid var(--line)}
.btn{border:0;border-radius:8px;padding:11px 16px;font-size:13px;font-weight:800;cursor:pointer}
.btn-primary{background:var(--blue);color:#fff}.btn-secondary{background:#edf3ff;color:#1856c8}.btn-dark{background:var(--navy);color:#fff}.btn-danger{background:#fff0ee;color:var(--red)}
.info{margin-top:16px;padding:14px 16px;background:#eef7ff;border-left:4px solid var(--blue);font-size:12px;color:#4d5c70;line-height:1.6}
.alert{padding:13px 15px;border-radius:9px;background:#fff7ec;border-left:4px solid var(--orange);font-size:11px;color:#5b6676;line-height:1.6;margin-bottom:15px}
.subgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:15px}
.card{border:1px solid var(--line);border-radius:10px;padding:14px}
.card-title{font-size:12px;font-weight:850}.card-desc{font-size:10px;color:#718093;line-height:1.5;margin-top:4px}
.mini-stat{margin-top:11px;font-size:12px;font-weight:800}.mini-stat span{color:#1769ff}
.badge{display:inline-block;font-size:9px;font-weight:850;border-radius:18px;padding:5px 8px;letter-spacing:.35px;text-transform:uppercase}
.badge-ok{background:#e7f7ee;color:var(--green)}.badge-info{background:#eef3ff;color:#1556c8}.badge-warning{background:#fff6df;color:#9a6800}
.toast{position:fixed;right:22px;bottom:22px;background:var(--navy);color:#fff;padding:13px 16px;border-radius:8px;font-size:13px;display:none;z-index:100}
@media(max-width:900px){.settings-layout{grid-template-columns:1fr}.settings-nav{display:grid;grid-template-columns:repeat(2,1fr);gap:4px}.form-grid,.subgrid{grid-template-columns:1fr}}
@media(max-width:700px){.sidebar{position:static;width:100%;min-height:auto}.main{margin-left:0;width:100%}.layout{display:block}.topbar{position:static}.settings-nav{grid-template-columns:1fr}.field.full{grid-column:auto}}