body {
    background: #f4f7fc;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Başlık */
h3 {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
}

/* Kartlar */
.card {
    border: none;
    border-radius: 16px;
    transition: all 0.3s ease;
    background: #fff;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1) !important;
}

.card h5 {
    color: #6c757d;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 10px;
}

.card h2 {
    font-size: 32px;
    font-weight: 700;
    color: #0d6efd;
}

/* Kartlara farklı renkler */
.col-md-3:nth-child(1) .card h2 {
    color: #198754;
}

.col-md-3:nth-child(2) .card h2 {
    color: #0d6efd;
}

.col-md-3:nth-child(3) .card h2 {
    color: #fd7e14;
}

.col-md-3:nth-child(4) .card h2 {
    color: #dc3545;
}

/* Bildirimler */
.list-group {
    border-radius: 12px;
    overflow: hidden;
}

.list-group-item {
    border: none;
    border-bottom: 1px solid #ececec;
    padding: 15px 20px;
    transition: background 0.2s;
}

.list-group-item:hover {
    background: #f8f9fa;
}

.list-group-item:last-child {
    border-bottom: none;
}

/* Çizgi */
hr {
    margin: 35px 0;
    opacity: 0.15;
}

/* Responsive */
@media (max-width: 768px) {
    .col-md-3 {
        margin-bottom: 15px;
    }

    .card h2 {
        font-size: 26px;
    }
}