.nav-header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(44,62,80,0.04);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    height: 70px;
}
.nav-logo {
    display: flex;
    align-items: center;
}
.nav-logo img {
    height: 44px;
    margin-right: 16px;
}
.nav-title {
    font-size: 22px;
    font-weight: 700;
    color: #563d7c;
    letter-spacing: 1px;
}
.nav-menu a {
    text-decoration: none;
    color: #333;
    font-size: 17px;
    margin: 0 20px;
    padding: 12px 10px;
    border-bottom: 2px solid transparent;
    transition: border-bottom 0.2s;
}
.nav-menu a:hover {
    border-bottom: 2px solid #5b88d6;
}
.logout-btn {
    background: #e53e3e;
    padding: 10px 20px;
    border-radius: 4px;
    color: #fff !important;
    font-weight: 600;
}
main {
    max-width: 1300px;
    margin: 0 auto;
    padding: 32px 0 0 0;
}

.dashboard-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 30px;
}
.card {
    background: #fff;
    box-shadow: 0 2px 18px #edeef5;
    border-radius: 14px;
    padding: 28px 38px;
    min-width: 220px;
    flex: 1 1 220px;
    text-align: center;
    position: relative;
    transition: box-shadow 0.18s;
}
.card:hover {
    box-shadow: 0 6px 30px #c1c2e5;
}
.card .fa-solid {
    font-size: 42px;
    margin-bottom: 16px;
}
.card.green .fa-solid {
    color: #35b340;
}
.card.blue .fa-solid {
    color: #2176d4;
}
.card.gold .fa-solid {
    color: #bc8e11;
}
.card.red .fa-solid {
    color: #c32541;
}
.card-title {
    font-size: 18px;
    margin-top: 12px;
    color: #222;
    margin-bottom: 8px;
}
.card-number {
    font-size: 32px;
    font-weight: bold;
    color: #563d7c;
    margin-top: 8px;
}
.card-sub {
    font-size: 15px;
    color: #444;
}