/* assets/css/style.css - simple responsive styles */
:root{--accent:#2c7;--muted:#666;--danger:#e74c3c;--bg:#f6f8fa}
*{box-sizing:border-box;font-family:Inter,Arial,Helvetica,sans-serif}
body{margin:0;background:var(--bg);color:#222}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:#fff;border-bottom:1px solid #eee}
.brand a{color:#222;text-decoration:none;font-weight:700}
.wrap{display:flex;min-height:calc(100vh - 112px)}
.sidebar{width:220px;background:#fff;border-right:1px solid #eee;padding:12px}
.sidebar nav ul{list-style:none;padding:0;margin:0}
.sidebar nav ul li{margin:6px 0}
.sidebar nav ul li a{color:#222;text-decoration:none}
.main{flex:1;padding:20px}
.footer{padding:12px;text-align:center;color:#666;background:#fff;border-top:1px solid #eee}
.card{background:#fff;padding:12px;border:1px solid #eee;margin-bottom:12px}
.table{width:100%;border-collapse:collapse;background:#fff;margin-bottom:20px}
.table th,.table td{padding:8px;border:1px solid #eee;text-align:left}
.btn{display:inline-block;padding:6px 10px;background:#2196F3;color:#fff;border-radius:4px;text-decoration:none;border:none;cursor:pointer}
.btn.small{padding:4px 8px;font-size:12px}
.btn.danger{background:var(--danger)}
.auth-card{max-width:420px;margin:40px auto;padding:20px;background:#fff;border:1px solid #eee}
label{display:block;margin:8px 0}
input[type=text],input[type=password],input[type=number],select{width:100%;padding:8px;border:1px solid #ccc;border-radius:4px}
.alert{padding:8px;margin:10px 0;border-radius:4px}
.alert.success{background:#e6ffed;color:#046a2a}
.alert.error{background:#ffe6e6;color:#8a1c1c}
.cards{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:12px}
.card.card-inline, .card-inline{display:inline-block}
.card .card-title{font-weight:700;color:#666}
.card .card-number{font-size:20px;margin-top:8px}
.card .card-sub{color:var(--muted);font-size:13px}
.card a.card{display:block;text-decoration:none;color:inherit}
.sidebar .session-selector{margin-top:10px}
.table.small td, .table.small th{padding:6px}
@media (max-width:800px){
  .sidebar{display:none}
  .wrap{flex-direction:column}
}
/* Dashboard Layout */
.main-content {
    padding: 20px;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

/* Responsive grid for cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

/* Individual card styling */
.card {
    background: #fff;
    border-radius: 15px;
    padding: 20px;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 120px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.15);
}

.card-title {
    font-size: 16px;
    color: #555;
    margin-bottom: 10px;
}

.card-number {
    font-size: 22px;
    font-weight: bold;
    color: #222;
}

.card-sub {
    font-size: 14px;
    color: #888;
    margin-top: 5px;
}

/* Chart container */
.chart-container {
    margin-top: 40px;
    background: #fff;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}