.event-details-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Back Button */
.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 30px;
    transition: color 0.3s ease;
}

.back-button:hover {
    color: #764ba2;
}

/* Event Header */
.event-detail-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.event-detail-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
    line-height: 1.2;
}

.event-detail-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Event Content */
.event-detail-content {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 35px;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.event-detail-section {
    margin-bottom: 35px;
}

.event-detail-section:last-child {
    margin-bottom: 0;
}

.section-title {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-icon {
    font-size: 1.8rem;
}

.section-content {
    color: #555;
    line-height: 1.8;
    font-size: 1.05rem;
}

/* Info Grid */
.event-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.info-box {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.info-box-label {
    color: #7f8c8d;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    font-weight: 600;
}

.info-box-value {
    color: #2c3e50;
    font-size: 1.2rem;
    font-weight: 600;
}

/* Action Buttons */
.event-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid #e0e0e0;
}

.btn-action {
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: #667eea;
    color: white;
}

.btn-primary:hover {
    background-color: #764ba2;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background-color: #ecf0f1;
    color: #2c3e50;
    border: 2px solid #bdc3c7;
}

.btn-secondary:hover {
    background-color: #bdc3c7;
    color: #2c3e50;
}

/* Empty/Error State */
.error-state {
    text-align: center;
    padding: 80px 20px;
    color: #7f8c8d;
}

.error-state-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    opacity: 0.3;
}

.error-state h2 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.error-state p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .event-detail-header {
        padding: 25px;
    }

    .event-detail-title {
        font-size: 1.8rem;
    }

    .event-detail-content {
        padding: 25px;
    }

    .section-title {
        font-size: 1.3rem;
    }

    .event-info-grid {
        grid-template-columns: 1fr;
    }

    .event-actions {
        flex-direction: column;
    }

    .btn-action {
        width: 100%;
        justify-content: center;
    }
}