:root{
  --body:#f4f7fb;
  --sidebar:#263544;
  --sidebar-dark:#1f2a37;
  --primary:#04a9f5;
  --primary-dark:#0494da;
  --success:#1de9b6;
  --warning:#f4c22b;
  --danger:#f44236;
  --purple:#7759de;
  --text:#263544;
  --muted:#748892;
  --border:#e8edf3;
  --card:#ffffff;
  --shadow:0 8px 24px rgba(62, 73, 84, .08);
}
*{box-sizing:border-box}
body{margin:0;font-family:'Inter','Segoe UI',Arial,sans-serif;background:var(--body);color:var(--text)}
a{text-decoration:none;color:inherit}
.app{display:flex;min-height:100vh}
.sidebar{width:270px;background:linear-gradient(180deg,var(--sidebar),var(--sidebar-dark));color:#b8c7d3;position:fixed;left:0;top:0;bottom:0;overflow:auto;box-shadow:4px 0 20px rgba(0,0,0,.08)}
.brand{height:76px;display:flex;align-items:center;gap:12px;padding:0 24px;color:white;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-logo{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--purple));display:grid;place-items:center;font-weight:900;color:white;box-shadow:0 8px 22px rgba(4,169,245,.28)}
.brand-title{font-size:20px;font-weight:800;line-height:1}.brand-title span{display:block;font-size:11px;font-weight:600;color:#91a6b8;margin-top:5px}
.nav{padding:18px 14px}.nav-title{font-size:11px;text-transform:uppercase;color:#71879a;letter-spacing:.08em;margin:18px 12px 8px}
.nav a{display:flex;align-items:center;gap:12px;padding:13px 14px;margin:4px 0;border-radius:10px;font-weight:650;transition:.2s}
.nav a:hover,.nav a.active{background:rgba(4,169,245,.16);color:white}.nav a.active{border-left:3px solid var(--primary)}
.main{margin-left:270px;flex:1;min-height:100vh}
.topbar{height:76px;background:white;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:5}
.searchbox{width:360px;position:relative}.searchbox input{width:100%;border:1px solid var(--border);background:#f8fafc;border-radius:12px;padding:12px 16px 12px 42px;outline:none}.searchbox span{position:absolute;left:15px;top:11px;color:#9aa9b7}
.userbox{display:flex;align-items:center;gap:12px}.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--purple));color:white;display:grid;place-items:center;font-weight:800}
.content{padding:28px}
.page-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}
.page-title h1{margin:0;font-size:28px;font-weight:800}.breadcrumb{font-size:13px;color:var(--muted);margin-top:8px}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{border:0;border-radius:10px;padding:11px 16px;font-weight:750;cursor:pointer;display:inline-flex;gap:8px;align-items:center;background:var(--primary);color:white;box-shadow:0 4px 14px rgba(4,169,245,.22)}
.btn:hover{background:var(--primary-dark)}.btn.secondary{background:white;color:var(--text);border:1px solid var(--border);box-shadow:none}.btn.dark{background:var(--sidebar)}.btn.success{background:#11c99a}.btn.warning{background:var(--warning);color:#111827}.btn.sm{padding:8px 11px;font-size:13px;border-radius:8px}
.grid{display:grid;gap:22px}.stats{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:22px}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}
.stat{padding:22px;position:relative;overflow:hidden}.stat:after{content:"";position:absolute;right:-38px;top:-38px;width:120px;height:120px;border-radius:50%;background:rgba(4,169,245,.08)}
.stat-top{display:flex;justify-content:space-between;gap:14px}.stat-icon{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-size:24px;background:#e9f7ff;color:var(--primary)}
.stat h3{margin:16px 0 5px;font-size:27px}.stat p{margin:0;color:var(--muted);font-size:13px}.trend{font-size:12px;font-weight:800;padding:6px 9px;border-radius:999px;background:#e6fff8;color:#0e9f78}
.layout{display:grid;grid-template-columns:1.4fr .8fr;gap:22px}.card-header{padding:18px 22px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.card-header h2{font-size:18px;margin:0}.card-body{padding:22px}
.chart{height:280px;display:flex;align-items:end;gap:12px;border-left:1px solid #edf2f7;border-bottom:1px solid #edf2f7;padding:18px 10px 34px;position:relative}
.bar{flex:1;min-height:12px;background:linear-gradient(180deg,var(--primary),var(--purple));border-radius:10px 10px 3px 3px;position:relative}.bar span{position:absolute;bottom:-28px;left:50%;transform:translateX(-50%);font-size:12px;color:var(--muted)}.bar b{position:absolute;top:-24px;left:50%;transform:translateX(-50%);font-size:12px;color:var(--text)}
.customer-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.customer-card{padding:18px}.customer-top{display:flex;justify-content:space-between;gap:12px}.customer-card h3{margin:0 0 6px}.muted{color:var(--muted);font-size:13px}.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:16px 0}.mini{background:#f8fafc;border:1px solid #edf2f7;border-radius:12px;padding:11px}.mini strong{display:block;margin-top:4px}
.tagline{display:flex;gap:7px;flex-wrap:wrap}.tag{font-size:12px;padding:6px 9px;border-radius:999px;background:#eef2f7;color:#475569;font-weight:700}
.badge{font-size:12px;padding:6px 9px;border-radius:999px;font-weight:800;background:#e6fff8;color:#0e9f78}.badge.warn{background:#fff8e1;color:#a16207}.badge.danger{background:#ffebee;color:#b42318}.badge.blue{background:#e9f7ff;color:#0369a1}.badge.gray{background:#eef2f7;color:#475569}
.table{width:100%;border-collapse:collapse}.table th,.table td{padding:14px 12px;text-align:left;border-bottom:1px solid #edf2f7;vertical-align:middle}.table th{font-size:12px;color:#6b7c8c;text-transform:uppercase;letter-spacing:.03em}.table tr:hover td{background:#fafcff}
.form-card{padding:24px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.full{grid-column:1/-1}label{display:block;font-size:13px;color:#607485;font-weight:750;margin-bottom:7px}input,select,textarea{width:100%;border:1px solid #dce5ef;border-radius:10px;padding:12px 13px;font:inherit;background:white;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(4,169,245,.12)}
.quick-list{display:flex;flex-direction:column}.quick-item{display:flex;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid #edf2f7}.quick-item:last-child{border-bottom:0}.amount{text-align:right;font-weight:800}
.login-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#263544,#04a9f5)}.login-card{width:420px;background:white;border-radius:16px;padding:32px;box-shadow:0 25px 65px rgba(0,0,0,.22)}.login-card h1{margin:0 0 8px}.alert{padding:12px 14px;border-radius:10px;background:#ffebee;color:#b42318;margin:12px 0}
@media(max-width:1100px){.sidebar{position:static;width:100%;height:auto}.main{margin-left:0}.app{display:block}.stats{grid-template-columns:repeat(2,1fr)}.layout{grid-template-columns:1fr}.customer-cards{grid-template-columns:1fr}.searchbox{display:none}}
@media(max-width:700px){.stats{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.full{grid-column:auto}.content{padding:16px}.topbar{padding:0 16px}.page-head{display:block}.actions{margin-top:14px}}