:root{
  --bg:#f5f6fb; --panel:#ffffff; --text:#1f2533; --muted:#7a8194;
  --primary:#5a23a6; --accent:#ff7a18; --shadow:0 10px 24px rgba(31,37,51,.06);
  --radius:16px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Roboto,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
.app{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{background:linear-gradient(180deg,#3a0ca3,#240046);color:#fff;padding:18px 14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;margin:6px 8px 20px}
.brand .dot{width:28px;height:28px;border-radius:50%;background:conic-gradient(from 210deg,#ff7a18,#ffb703,#5a23a6)}
.nav a{display:flex;align-items:center;gap:12px;text-decoration:none;color:#e6dbff;padding:10px 12px;border-radius:12px}
.nav a:hover{background:rgba(255,255,255,.08)}
.nav .active{background:rgba(255,255,255,.16);color:#fff}
.header{display:flex;align-items:center;justify-content:space-between;padding:14px 22px;background:#fff;border-bottom:1px solid #eceef5}
.search{flex:1;max-width:520px;display:flex;gap:10px}
.search input{flex:1;padding:10px 12px;border:1px solid #e3e6ee;border-radius:10px;outline:none}
.user{display:flex;align-items:center;gap:10px}
.user .avatar{width:36px;height:36px;border-radius:50%;background:#ddd}
.content{padding:22px}
.kpis{display:grid;grid-template-columns:repeat(4,minmax(180px,1fr));gap:18px;margin-bottom:18px}
.card{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.card h4{margin:0 0 6px;font-weight:500;color:var(--muted)}
.card .big{font-size:28px;font-weight:700}
.row{display:flex;gap:10px;flex-wrap:wrap}
.row input{padding:10px;border:1px solid #e3e6ee;border-radius:10px}
.row button, button{cursor:pointer;background:#5a23a6;color:#fff;border:0;border-radius:10px;padding:10px 16px}
.muted{color:var(--muted)}
/* Login */
.login{max-width:380px;margin:12vh auto;background:#fff;padding:28px;border-radius:16px;box-shadow:var(--shadow)}
.login h1{margin:0 0 12px}
.login input{width:100%;margin:8px 0;padding:10px;border:1px solid #e3e6ee;border-radius:10px}
.login button{width:100%;margin-top:8px}
.list{display:grid;gap:10px}
.item{border:1px solid #e9ecf3;border-radius:12px;padding:12px}