:root{
    --bg:#f3f6fb;
    --card:#ffffff;
    --sidebar:#ffffff;

    --text:#1e293b;
    --muted:#64748b;

    --primary:#2563eb;
    --primary-light:#3b82f6;

    --border:#e2e8f0;

    --shadow:
        0 4px 20px rgba(15,23,42,.08);

    --radius:18px;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    font-family:Inter,Segoe UI,Arial,sans-serif;
    background:var(--bg);
    color:var(--text);
    min-height:100vh;
    overflow-x:hidden;
}

.layout{
    display:grid;
    grid-template-columns:260px 1fr;
    min-height:100vh;
}

/* =========================
   SIDEBAR
========================= */

.sidebar{
    background:var(--sidebar);

    border-right:1px solid var(--border);

    box-shadow:var(--shadow);

    height:100vh;

    position:sticky;
    top:0;

    padding:16px;
}

.logo-box{
    background:#fff;

    border:1px solid var(--border);

    border-radius:18px;

    padding:14px;

    margin-bottom:20px;

    display:flex;
    align-items:center;
    gap:14px;
}

.logo-img{
    width:58px;
    height:58px;

    object-fit:contain;

    border-radius:14px;

    border:1px solid var(--border);

    padding:6px;

    background:#fff;
}

.logo-text{
    display:flex;
    flex-direction:column;
}
.logo-text h3{
    margin:0;
    font-size:1.05rem;
    font-weight:800;
    color:#0f172a;
}
.logo-text span{
    margin-top:2px;
    color:var(--muted);
    font-size:.85rem;
}
.sidebar-nav{
    display:flex;
    flex-direction:column;
    gap:10px;
}

.sidebar-nav a{
    text-decoration:none;

    color:var(--text);

    padding:14px 16px;

    border-radius:14px;

    transition:.2s;

    border:1px solid transparent;
}

.sidebar-nav a:hover{
    background:#f8fafc;

    border-color:var(--border);

    transform:translateX(4px);
}

/* =========================
   CONTENIDO
========================= */

.main-content{
    padding:30px;
}

.hero{
    margin-bottom:30px;

    background:#ffffff;
    border:1px solid var(--border);
    border-radius:20px;
    padding:24px 30px;
    box-shadow:var(--shadow);
}

.hero h1{
    font-size:2.6rem;

    font-weight:800;

    color:#0f172a;

    line-height:1.1;

    margin-bottom:10px;
}

.hero p{
    color:#64748b;

    font-size:.95rem;

    margin-top:0;
}

/* =========================
   KPI CARDS
========================= */

#kpis{
    display:grid;

    grid-template-columns:
        repeat(auto-fit,minmax(240px,1fr));

    gap:18px;
}

.card{
    background:#fff;

    border:1px solid var(--border);

    border-radius:20px;

    padding:24px;

    box-shadow:var(--shadow);

    transition:.2s;
}

.card:hover{
    transform:translateY(-3px);
}

.card h3{
    font-size:.9rem;

    color:var(--muted);

    margin-bottom:12px;

    text-transform:uppercase;
}

.card span{
    font-size:3rem;

    font-weight:900;

    color:#0f172a;
}

/* =========================
   DASHBOARD PANELS
========================= */

.dashboard-row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
    margin-top:20px;
}

.panel{
    background:#ffffff;
    border:1px solid var(--border);
    border-radius:20px;
    padding:24px;
    box-shadow:var(--shadow);
    min-height:260px;
}

.panel h2{
    font-size:1.1rem;
    font-weight:700;
    color:#0f172a;
    margin-bottom:20px;
}
/* =========================
   RESPONSIVE
========================= */

@media(max-width:1100px){

    .layout{
        display:block;
    }

    .sidebar{
        position:relative;
        height:auto;
    }

    .sidebar-nav{
        flex-direction:row;
        flex-wrap:wrap;
    }

}

@media(max-width:768px){

    .main-content{
        padding:15px;
    }

    .hero h1{
        font-size:2.3rem;
    }

    .sidebar-nav{
        flex-direction:column;
    }

    #kpis{
        grid-template-columns:1fr;
    }

    .dashboard-row{
        grid-template-columns:1fr;
    }

}