:root {
    --event-green: #8bc34a;
    --event-blue: #00bcd4;
    --event-purple: #673ab7;
    --event-orange: #ff5722;
    --event-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    --event-transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

/* Events Section Container */
.events-slider-section {
    position: relative;
    padding: 80px 0;
    background: #f9f9ff;
    overflow: hidden;
}

.events-heading-container {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    z-index: 3;
}

.events-heading {
    font-size: 2.8rem;
    margin-bottom: 15px;
    color: #333;
    display: inline-block;
}

.heading-line.highlight {
    color: #0056b3;
    font-weight: 700;
    position: relative;
}

.heading-line.highlight::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #0056b3, #00bcd4);
}

.events-subheading {
    font-size: 1.1rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

/* Circular Events Container */
.circular-events-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 5;
    padding: 20px;
}

/* Circular Event Card */
.circular-event-card {
    position: relative;
    width: 280px;
    perspective: 1000px;
    cursor: pointer;
}

.circle-bg {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--event-transition);
    transform-style: preserve-3d;
    box-shadow: var(--event-shadow);
    z-index: 1;
}

/* Background colors for different cards */
.green-bg { background: var(--event-green); }
.blue-bg { background: var(--event-blue); }
.purple-bg { background: var(--event-purple); }
.orange-bg { background: var(--event-orange); }

/* Icon container */
.icon-container {
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    font-size: 2rem;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 2;
    transform: translateZ(20px);
    transition: var(--event-transition);
}

.green-bg .icon-container i { color: var(--event-green); }
.blue-bg .icon-container i { color: var(--event-blue); }
.purple-bg .icon-container i { color: var(--event-purple); }
.orange-bg .icon-container i { color: var(--event-orange); }

.circle-title {
    font-size: 1.6rem;
    margin: 10px 0;
    font-weight: 700;
    transform: translateZ(15px);
    transition: var(--event-transition);
}

.event-preview {
    font-size: 0.9rem;
    margin-bottom: 15px;
    transform: translateZ(10px);
    opacity: 0.9;
}

.learn-more-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--event-transition);
    transform: translateZ(15px);
}

.learn-more-btn:hover {
    background: white;
}

.green-bg .learn-more-btn:hover { color: var(--event-green); }
.blue-bg .learn-more-btn:hover { color: var(--event-blue); }
.purple-bg .learn-more-btn:hover { color: var(--event-purple); }
.orange-bg .learn-more-btn:hover { color: var(--event-orange); }

/* 3D Hover Effect */
.circular-event-card:hover .circle-bg {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.circular-event-card:hover .icon-container {
    transform: translateZ(30px) rotate(10deg);
}

/* Improved Popup Overlay */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    backdrop-filter: blur(5px);
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Improved Event Details Panel */
.event-details-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    background: white;
    border-radius: 15px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    z-index: 10001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.event-details-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.event-details-panel.open {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

/* Panel Header */
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: #f8f9fa;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 2;
}

.panel-header h3 {
    font-size: 1.4rem;
    margin: 0;
    color: var(--text-dark);
}

.close-panel {
    background: rgba(0, 0, 0, 0.1);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-panel:hover {
    background: rgba(0, 0, 0, 0.2);
}

/* Event Items List */
.event-items-list {
    padding: 5px 0;
    overflow-y: auto;
    max-height: 60vh;
}

.event-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.event-item.animated {
    animation: itemEntrance 0.5s forwards;
}

@keyframes itemEntrance {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.event-item:hover {
    background: rgba(0, 0, 0, 0.02);
}

.event-arrow {
    margin-right: 15px;
    width: 30px;
    height: 30px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.event-item:hover .event-arrow {
    background: var(--primary);
    color: white;
}

.event-details {
    flex: 1;
}

.event-details h4 {
    margin: 0 0 5px;
    font-size: 1.1rem;
    color: var(--text-dark);
}

.event-date {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-light);
}

.event-date i {
    margin-right: 5px;
    color: var(--accent);
}

/* View All Container */
.view-all-container {
    padding: 15px 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    text-align: center;
    background: #f8f9fa;
    position: sticky;
    bottom: 0;
}

/* Scrollbar styling for the event items list */
.event-items-list::-webkit-scrollbar {
    width: 8px;
}

.event-items-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.event-items-list::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 10px;
}

.event-items-list::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Enhanced Mobile Responsiveness for Circular Events */
@media (max-width: 768px) {
    .circular-events-container {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 50px; /* Further increased spacing between circles */
        padding: 0;
        width: 100%;
    }

    .circular-event-card {
        width: 340px; /* Significantly increased width */
        margin: 0 auto;
        display: flex;
        justify-content: center;
        left: 0;
        right: 0;
        position: relative;
    }

    .circle-bg {
        width: 300px; /* Much larger circle */
        height: 300px; /* Much larger circle */
        margin: 0 auto;
        position: relative;
        left: 0;
        transform: translateX(0);
        padding: 35px; /* Increased padding for more content space */
    }
    
    .icon-container {
        width: 90px; /* Larger icon container */
        height: 90px;
        margin-bottom: 20px; /* More space below icon */
        font-size: 2.2rem; /* Larger icon */
    }
    
    .circle-title {
        font-size: 1.8rem; /* Larger title */
        margin-bottom: 15px; /* More space below title */
    }
    
    .event-preview {
        font-size: 1rem; /* Larger preview text */
        line-height: 1.5;
        margin-bottom: 25px; /* More space before button */
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    
    .learn-more-btn {
        background: rgba(255, 255, 255, 0.3);
        border: 2px solid white;
        color: white;
        padding: 12px 30px; /* Even larger padding */
        border-radius: 50px;
        font-weight: 700;
        font-size: 1.1rem; /* Larger font */
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    .circular-event-card {
        width: 320px; /* Still quite large for small devices */
    }

    .circle-bg {
        width: 280px; /* Larger than before */
        height: 280px;
    }

    .icon-container {
        width: 85px;
        height: 85px;
    }

    .circle-title {
        font-size: 1.7rem;
    }
    
    .event-preview p {
        font-size: 0.95rem;
    }
    
    .learn-more-btn {
        padding: 12px 28px;
    }
}