:root {
    --navy: #001f3f;
    --gold: #ffc107;
    --light-bg: #f8f9fa;
}

/* Header Styling */
.text-navy { color: var(--navy); }
.text-gold { color: var(--gold); }
.bg-navy { background-color: var(--navy); }

.header-line {
    width: 60px;
    height: 3px;
    background: var(--gold);
    transition: width 0.3s ease;
}

.mgmt-activities-section:hover .header-line {
    width: 100px;
}

/* Filter Buttons */
.btn-filter {
    border: 2px solid var(--navy);
    color: var(--navy);
    font-weight: 600;
    margin: 5px;
    border-radius: 50px;
    padding: 8px 25px;
    transition: all 0.3s ease;
}

.btn-filter:hover, .btn-filter.active {
    background-color: var(--navy);
    color: white;
}

/* Card Styling */
.mgmt-act-card {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.mgmt-act-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1) !important;
}

/* Icon Animation */
.act-icon-box {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(0, 31, 63, 0.1);
    color: var(--navy);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.act-icon-box.icon-gold {
    background: rgba(197, 160, 89, 0.1);
    color: var(--gold);
}

.mgmt-act-card:hover .act-icon-box {
    background: var(--navy);
    color: white;
    transform: rotateY(360deg);
}

.mgmt-act-card:hover .act-icon-box.icon-gold {
    background: var(--gold);
}

/* Checklist Icons */
.act-checklist li i {
    color: var(--gold);
}

.border-navy { border-color: var(--navy) !important; }
.border-gold { border-color: var(--gold) !important; }

/* Theory Banner */
.theory-banner {
    background: linear-gradient(135deg, var(--navy) 0%, #003366 100%);
}

.theory-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: rgba(197, 160, 89, 0.1);
    border-radius: 50%;
    z-index: 0;
}

/* Dynamic Filtering Animation */
.filter-item {
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.filter-item.hide {
    display: none;
    opacity: 0;
    transform: scale(0.8);
}

.filter-item.show {
    display: block;
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}