*{box-sizing:border-box}
body{margin:0;font-family:Inter,Arial,sans-serif;background:#f4f7fb;color:#172033}
a{color:#2357d8;text-decoration:none}

.topbar{height:68px;background:#101a33;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:5}
.brand{font-size:25px;font-weight:800}
.brand small{font-size:11px;font-weight:400;display:block;color:#aeb8cf}
.userbox{font-size:14px}
.userbox a{color:#fff;margin-left:18px}

.shell{display:flex;min-height:calc(100vh - 68px)}

.sidebar{width:230px;background:#172341;padding:18px 12px}
.sidebar a{display:block;color:#dce4f5;padding:11px 12px;border-radius:9px;margin-bottom:4px}
.sidebar a:hover{background:#27365b}

.content{flex:1;padding:28px;max-width:1400px}
.content h1{margin-top:0}

.footer{text-align:center;padding:20px;color:#7b8495}

.grid{display:grid;gap:18px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.four{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}

.card,.winner{background:#fff;border:1px solid #e2e7f0;border-radius:16px;padding:20px;margin-bottom:18px;box-shadow:0 5px 18px rgba(23,32,51,.05)}

.kpi span{color:#71809b}
.kpi strong{font-size:32px;display:block;margin-top:8px}

.link-card{display:block;color:#172033}
.link-card b{font-size:19px;display:block}
.link-card span{color:#6e7890}

.group-card{display:flex;justify-content:space-between;padding:18px;border:1px solid #e0e5ee;border-radius:12px;margin:10px 0;color:#172033}
.group-card span{color:#2357d8}

label{display:block;font-weight:700;margin-bottom:12px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid #cfd7e5;border-radius:9px;margin-top:6px;background:#fff;font:inherit}

.btn{display:inline-block;border:0;border-radius:9px;padding:11px 16px;background:#e7ebf2;color:#172033;cursor:pointer;font-weight:700}
.btn.primary{background:#2457d6;color:#fff}
.btn.full{width:100%}

.alert{padding:13px 15px;border-radius:10px;margin-bottom:18px}
.alert.success{background:#e8f7ed;color:#176b38}
.alert.danger{background:#fdecec;color:#9a2525}
.alert.info{background:#eaf2ff;color:#2457d6}

table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px;border-bottom:1px solid #e8ecf2}
th{color:#5d6a80;font-size:13px}

.login{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#101a33,#2d4e98);padding:20px}
.login-card{background:#fff;width:min(440px,100%);border-radius:20px;padding:30px;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.login-card.wide{width:min(600px,100%)}
.logo{font-size:40px;font-weight:900;color:#2457d6}
.login h1{font-size:26px}
.muted{color:#77839a}
.center{text-align:center}

.public-head{background:#101a33;color:#fff;padding:25px max(20px,calc((100% - 1100px)/2));display:flex;gap:22px;align-items:center}
.public-head .logo{color:#fff}
.public-main{max-width:1100px;margin:30px auto;padding:0 20px}

.winner{text-align:center;background:linear-gradient(135deg,#fff,#edf4ff)}
.winner>div{font-size:48px}
.winner strong{font-size:25px;color:#2457d6}
.winner h2{margin-bottom:8px}

/* ==========================================================================
   DISEÑO RESPONSIVO UNIFICADO (Tablets y Celulares)
   ========================================================================== */
@media(max-width: 900px){
    .shell{
        flex-direction: column;
    }
    .sidebar{
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
        padding: 12px 15px;
        justify-content: center;
    }
    .sidebar a{
        margin-bottom: 0;
        padding: 8px 12px;
        font-size: 0.9rem;
    }
    .content{
        padding: 16px;
    }
}

@media(max-width: 800px){
    .grid.two,.grid.three,.grid.four{
        grid-template-columns: 1fr;
    }
    .topbar{
        padding: 0 12px;
    }
    .brand small{
        display: none;
    }
    table{
        font-size: 13px;
    }
    .public-head{
        display: block;
    }
}